refactor: porcail api

v0.3.0

See merge request slumber/multi-user!106

.gitlab-ci.yml

@@ -1,10 +0,0 @@
-stages:
-  - test
-  - build
-  - deploy
-
-
-include:
-  - local: .gitlab/ci/test.gitlab-ci.yml
-  - local: .gitlab/ci/build.gitlab-ci.yml
-  - local: .gitlab/ci/deploy.gitlab-ci.yml

.gitlab/ci/build.gitlab-ci.yml

@@ -1,5 +1,6 @@
 build:
   stage: build
+  needs: ["test"]
   image: debian:stable-slim
   script:
     - rm -rf tests .git .gitignore script

.gitlab/ci/deploy.gitlab-ci.yml

@@ -1,5 +1,6 @@
 deploy:
   stage: deploy
+  needs: ["build"]
   image: slumber/docker-python  
   variables:
     DOCKER_DRIVER: overlay2

.gitlab/ci/doc.gitlab-ci.yml

@@ -0,0 +1,16 @@
+pages:
+  stage: doc
+  needs: ["deploy"]
+  image: python
+  script:
+  - pip install -U sphinx sphinx_rtd_theme sphinx-material
+  - sphinx-build -b html ./docs public
+  artifacts:
+    paths:
+    - public
+  only:
+    refs:
+    - master
+    - develop
+
+

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "multi_user/libs/replication"]
+	path = multi_user/libs/replication
+	url = https://gitlab.com/slumber/replication

CHANGELOG.md

@@ -157,4 +157,33 @@ All notable changes to this project will be documented in this file.
 - Empty and Light object selection highlights
 - Material renaming
 - Default material nodes input parameters
-- blender 2.91 python api compatibility
+- blender 2.91 python api compatibility
+
+## [0.3.0] - 2021-04-14
+
+### Added
+
+- Curve material support
+- Cycle visibility settings
+- Session save/load  operator 
+- Add new scene support
+- Physic initial support
+- Geometry node initial support
+- Blender 2.93 compatibility
+### Changed
+
+- Host documentation on Gitlab Page
+- Event driven update (from the blender deps graph)
+
+### Fixed
+
+- Vertex group assignation
+- Parent relation can't be removed
+- Separate object
+- Delete animation
+- Sync missing holdout option for grease pencil material
+- Sync missing `skin_vertices`  
+- Exception access violation during Undo/Redo
+- Sync missing armature bone Roll
+- Sync missing driver data_path
+- Constraint replication

README.md

@@ -19,44 +19,46 @@ This tool aims to allow multiple users to work on the same scene over the networ
 
 ## Usage
 
-See the [documentation](https://multi-user.readthedocs.io/en/latest/) for details.
+See the [documentation](https://slumber.gitlab.io/multi-user/index.html) for details.
 
 ## Troubleshooting
 
-See the [troubleshooting guide](https://multi-user.readthedocs.io/en/latest/getting_started/troubleshooting.html) for tips on the most common issues.
+See the [troubleshooting guide](https://slumber.gitlab.io/multi-user/getting_started/troubleshooting.html) for tips on the most common issues.
 
 ## Current development status
 
 Currently, not all data-block are supported for replication over the wire. The following list summarizes the status for each ones.
 
-| Name        | Status |                                   Comment                                    |
-| ----------- | :----: | :--------------------------------------------------------------------------: |
-| action      |   ✔️    |                                                                              |
-| armature    |   ❗    |                                  Not stable                                  |
-| camera      |   ✔️    |                                                                              |
-| collection  |   ✔️    |                                                                              |
-| curve       |   ❗    |                             Nurbs not supported                              |
-| gpencil     |   ✔️    | [Airbrush not supported](https://gitlab.com/slumber/multi-user/-/issues/123) |
-| image       |   ✔️    |                                                                              |
-| mesh        |   ✔️    |                                                                              |
-| material    |   ✔️    |                                                                              |
-| node_groups |   ❗    |                                Material only                                 |
-| metaball    |   ✔️    |                                                                              |
-| object      |   ✔️    |                                                                              |
-| textures    |   ❗    |                         Supported for modifiers only                         |
-| texts       |   ✔️    |                                                                              |
-| scene       |   ✔️    |                                                                              |
-| world       |   ✔️    |                                                                              |
-| lightprobes |   ✔️    |                                                                              |
-| compositing |   ❌    |         [Planned](https://gitlab.com/slumber/multi-user/-/issues/46)         |
-| texts       |   ❌    |         [Planned](https://gitlab.com/slumber/multi-user/-/issues/81)         |
-| nla         |   ❌    |                                                                              |
-| volumes     |   ✔️    |                                                                              |
-| particles   |   ❌    |        [On-going](https://gitlab.com/slumber/multi-user/-/issues/24)         |
-| speakers    |   ❗    |         [Partial](https://gitlab.com/slumber/multi-user/-/issues/65)         |
-| vse         |   ❗    |                       Mask and Clip not supported yet                        |
-| physics     |   ❌    |         [Planned](https://gitlab.com/slumber/multi-user/-/issues/45)         |
-| libraries   |   ❗    |                                   Partial                                    |
+| Name           | Status |                           Comment                            |
+| -------------- | :----: | :----------------------------------------------------------: |
+| action         |   ✔️    |                                                              |
+| armature       |   ❗    |                          Not stable                          |
+| camera         |   ✔️    |                                                              |
+| collection     |   ✔️    |                                                              |
+| curve          |   ❗    |                 Nurbs surfaces not supported                 |
+| gpencil        |   ✔️    |                                                              |
+| image          |   ✔️    |                                                              |
+| mesh           |   ✔️    |                                                              |
+| material       |   ✔️    |                                                              |
+| node_groups    |   ❗    |                   Material & Geometry only                   |
+| geometry nodes |   ✔️    |                                                              |
+| metaball       |   ✔️    |                                                              |
+| object         |   ✔️    |                                                              |
+| textures       |   ❗    |       Supported for modifiers/materials/geo nodes only       |
+| texts          |   ✔️    |                                                              |
+| scene          |   ✔️    |                                                              |
+| world          |   ✔️    |                                                              |
+| lightprobes    |   ✔️    |                                                              |
+| compositing    |   ❌    | [Planned](https://gitlab.com/slumber/multi-user/-/issues/46) |
+| texts          |   ❌    | [Planned](https://gitlab.com/slumber/multi-user/-/issues/81) |
+| nla            |   ❌    |                                                              |
+| volumes        |   ✔️    |                                                              |
+| particles      |   ❗    |                   The cache isn't syncing.                   |
+| speakers       |   ❗    | [Partial](https://gitlab.com/slumber/multi-user/-/issues/65) |
+| vse            |   ❗    |               Mask and Clip not supported yet                |
+| physics        |   ❌    | [Planned](https://gitlab.com/slumber/multi-user/-/issues/45) |
+| libraries      |   ❗    |                           Partial                            |
+
 
 
 ### Performance issues
@@ -74,7 +76,7 @@ I'm working on it.
 
 ## Contributing
 
-See [contributing section](https://multi-user.readthedocs.io/en/latest/ways_to_contribute.html) of the documentation.
+See [contributing section](https://slumber.gitlab.io/multi-user/ways_to_contribute.html) of the documentation.
 
 Feel free to [join the discord server](https://discord.gg/aBPvGws) to chat, seek help and contribute.
 

docs/getting_started/quickstart.rst

@@ -374,15 +374,6 @@ Network
 
    Advanced network settings
 
-**IPC Port** is the port used for Inter Process Communication. This port is used 
-by the multi-user subprocesses to communicate with each other. If different instances
-of multi-user are using the same IPC port, this will create conflict !
-
-.. note::
-   You only need to modify this setting if you need to launch multiple clients from the same
-   computer (or if you try to host and join from the same computer). To resolve this, you simply need to enter a different
-   **IPC port** for each blender instance.
-
 **Timeout (in milliseconds)** is the maximum ping authorized before auto-disconnecting.
 You should only increase it if you have a bad connection.
 

multi_user/__init__.py

@@ -41,12 +41,8 @@ import bpy
 from bpy.app.handlers import persistent
 
 from . import environment
-
-
-DEPENDENCIES = {
-    ("replication", '0.1.26'),
-}
-
+from uuid import uuid4
+LIBS = os.path.dirname(os.path.abspath(__file__))+"/libs/replication"
 
 module_error_msg = "Insufficient rights to install the multi-user \
                 dependencies, aunch blender with administrator rights."
@@ -57,14 +53,15 @@ def register():
         datefmt='%H:%M:%S',
         level=logging.INFO)
 
+    for module_name in list(sys.modules.keys()):
+        if 'replication' in module_name:
+            del sys.modules[module_name]
+
+    if LIBS not in sys.path:
+        logging.info('Adding local modules dir to the path')
+        sys.path.insert(0, LIBS)
+    
     try:
-        if bpy.app.version[1] >= 91:
-            python_binary_path = sys.executable
-        else:
-            python_binary_path = bpy.app.binary_path_python
-
-        environment.setup(DEPENDENCIES, python_binary_path)
-
         from . import presence
         from . import operators
         from . import ui
@@ -78,7 +75,7 @@ def register():
         ui.register()
     except ModuleNotFoundError as e:
         raise Exception(module_error_msg)
-        logging.error(module_error_msg)
+        logging.error(e)
  
     bpy.types.WindowManager.session = bpy.props.PointerProperty(
         type=preferences.SessionProps)

multi_user/addon_updater_ops.py

@@ -122,13 +122,13 @@ class addon_updater_install_popup(bpy.types.Operator):
 	# if true, run clean install - ie remove all files before adding new
 	# equivalent to deleting the addon and reinstalling, except the
 	# updater folder/backup folder remains
-	clean_install = bpy.props.BoolProperty(
+	clean_install: bpy.props.BoolProperty(
 		name="Clean install",
 		description="If enabled, completely clear the addon's folder before installing new update, creating a fresh install",
 		default=False,
 		options={'HIDDEN'}
 	)
-	ignore_enum = bpy.props.EnumProperty(
+	ignore_enum: bpy.props.EnumProperty(
 		name="Process update",
 		description="Decide to install, ignore, or defer new addon update",
 		items=[
@@ -264,7 +264,7 @@ class addon_updater_update_now(bpy.types.Operator):
 	# if true, run clean install - ie remove all files before adding new
 	# equivalent to deleting the addon and reinstalling, except the
 	# updater folder/backup folder remains
-	clean_install = bpy.props.BoolProperty(
+	clean_install: bpy.props.BoolProperty(
 		name="Clean install",
 		description="If enabled, completely clear the addon's folder before installing new update, creating a fresh install",
 		default=False,
@@ -332,7 +332,7 @@ class addon_updater_update_target(bpy.types.Operator):
 			i+=1
 		return ret
 
-	target = bpy.props.EnumProperty(
+	target: bpy.props.EnumProperty(
 		name="Target version to install",
 		description="Select the version to install",
 		items=target_version
@@ -341,7 +341,7 @@ class addon_updater_update_target(bpy.types.Operator):
 	# if true, run clean install - ie remove all files before adding new
 	# equivalent to deleting the addon and reinstalling, except the
 	# updater folder/backup folder remains
-	clean_install = bpy.props.BoolProperty(
+	clean_install: bpy.props.BoolProperty(
 		name="Clean install",
 		description="If enabled, completely clear the addon's folder before installing new update, creating a fresh install",
 		default=False,
@@ -399,7 +399,7 @@ class addon_updater_install_manually(bpy.types.Operator):
 	bl_description = "Proceed to manually install update"
 	bl_options = {'REGISTER', 'INTERNAL'}
 
-	error = bpy.props.StringProperty(
+	error: bpy.props.StringProperty(
 		name="Error Occurred",
 		default="",
 		options={'HIDDEN'}
@@ -461,7 +461,7 @@ class addon_updater_updated_successful(bpy.types.Operator):
 	bl_description = "Update installation response"
 	bl_options = {'REGISTER', 'INTERNAL', 'UNDO'}
 
-	error = bpy.props.StringProperty(
+	error: bpy.props.StringProperty(
 		name="Error Occurred",
 		default="",
 		options={'HIDDEN'}

multi_user/bl_types/__init__.py

@@ -1,55 +0,0 @@
-# ##### BEGIN GPL LICENSE BLOCK #####
-#
-#   This program is free software: you can redistribute it and/or modify
-#   it under the terms of the GNU General Public License as published by
-#   the Free Software Foundation, either version 3 of the License, or
-#   (at your option) any later version.
-#
-#   This program is distributed in the hope that it will be useful,
-#   but WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#   GNU General Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License
-#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
-#
-# ##### END GPL LICENSE BLOCK #####
-
-import bpy
-
-__all__ = [
-    'bl_object',
-    'bl_mesh',
-    'bl_camera',
-    'bl_collection',
-    'bl_curve',
-    'bl_gpencil',
-    'bl_image',
-    'bl_light',
-    'bl_scene',
-    'bl_material',
-    'bl_library',
-    'bl_armature',
-    'bl_action',
-    'bl_world',
-    'bl_metaball',
-    'bl_lattice',
-    'bl_lightprobe',
-    'bl_speaker',
-    'bl_font',
-    'bl_sound',
-    'bl_file',
-    # 'bl_sequencer',
-    'bl_node_group',
-    'bl_texture',
-]  # Order here defines execution order
-
-if bpy.app.version[1] >= 91:
-    __all__.append('bl_volume')
-
-from . import *
-from replication.data import ReplicatedDataFactory
-
-def types_to_register():
-    return __all__
-

multi_user/bl_types/bl_datablock.py

@@ -1,231 +0,0 @@
-# ##### BEGIN GPL LICENSE BLOCK #####
-#
-#   This program is free software: you can redistribute it and/or modify
-#   it under the terms of the GNU General Public License as published by
-#   the Free Software Foundation, either version 3 of the License, or
-#   (at your option) any later version.
-#
-#   This program is distributed in the hope that it will be useful,
-#   but WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-#   GNU General Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License
-#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
-#
-# ##### END GPL LICENSE BLOCK #####
-
-
-import logging
-from collections.abc import Iterable
-
-import bpy
-import mathutils
-from replication.constants import DIFF_BINARY, DIFF_JSON, UP
-from replication.data import ReplicatedDatablock
-
-from .. import utils
-from .dump_anything import Dumper, Loader
-
-
-def has_action(target):
-    """ Check if the target datablock has actions
-    """
-    return (hasattr(target, 'animation_data')
-            and target.animation_data
-            and target.animation_data.action)
-
-
-def has_driver(target):
-    """ Check if the target datablock is driven
-    """
-    return (hasattr(target, 'animation_data')
-            and target.animation_data
-            and target.animation_data.drivers)
-
-
-def dump_driver(driver):
-    dumper = Dumper()
-    dumper.depth = 6
-    data = dumper.dump(driver)
-
-    return data
-
-
-def load_driver(target_datablock, src_driver):
-    loader = Loader()
-    drivers = target_datablock.animation_data.drivers
-    src_driver_data = src_driver['driver']
-    new_driver = drivers.new(src_driver['data_path'], index=src_driver['array_index'])
-
-    # Settings
-    new_driver.driver.type = src_driver_data['type']
-    new_driver.driver.expression = src_driver_data['expression']
-    loader.load(new_driver,  src_driver)
-
-    # Variables
-    for src_variable in src_driver_data['variables']:
-        src_var_data = src_driver_data['variables'][src_variable]
-        new_var = new_driver.driver.variables.new()
-        new_var.name = src_var_data['name']
-        new_var.type = src_var_data['type']
-
-        for src_target in src_var_data['targets']:
-            src_target_data = src_var_data['targets'][src_target]
-            new_var.targets[src_target].id = utils.resolve_from_id(
-                src_target_data['id'], src_target_data['id_type'])
-            loader.load(
-                new_var.targets[src_target],  src_target_data)
-
-    # Fcurve
-    new_fcurve = new_driver.keyframe_points
-    for p in reversed(new_fcurve):
-        new_fcurve.remove(p, fast=True)
-
-    new_fcurve.add(len(src_driver['keyframe_points']))
-
-    for index, src_point in enumerate(src_driver['keyframe_points']):
-        new_point = new_fcurve[index]
-        loader.load(new_point, src_driver['keyframe_points'][src_point])
-
-
-def get_datablock_from_uuid(uuid, default, ignore=[]):
-    if not uuid:
-        return default
-    for category in dir(bpy.data):
-        root = getattr(bpy.data, category)
-        if isinstance(root, Iterable) and category not in ignore:
-            for item in root:
-                if getattr(item, 'uuid', None) == uuid:
-                    return item
-    return default
-
-
-class BlDatablock(ReplicatedDatablock):
-    """BlDatablock
-
-        bl_id :             blender internal storage identifier
-        bl_class :          blender internal type
-        bl_icon :           type icon (blender icon name) 
-        bl_check_common:    enable check even in common rights
-        bl_reload_parent:   reload parent
-    """
-
-
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-        instance = kwargs.get('instance', None)
-        
-        self.preferences = utils.get_preferences()
-
-        # TODO: use is_library_indirect
-        self.is_library = (instance and hasattr(instance, 'library') and
-                           instance.library) or \
-            (hasattr(self,'data') and self.data and 'library' in self.data)
-
-        if instance and hasattr(instance, 'uuid'):
-            instance.uuid = self.uuid
-
-    def resolve(self, construct = True):
-        datablock_root = getattr(bpy.data, self.bl_id)
-        datablock_ref = utils.find_from_attr('uuid', self.uuid, datablock_root)
-
-        if not datablock_ref:
-            try:
-                datablock_ref = datablock_root[self.data['name']]
-            except Exception:
-                pass
-
-            if construct and not datablock_ref:
-                name = self.data.get('name')
-                logging.debug(f"Constructing {name}")
-                datablock_ref = self._construct(data=self.data)
-
-        if datablock_ref is not None:
-            setattr(datablock_ref, 'uuid', self.uuid)
-            self.instance = datablock_ref
-            return True
-        else:
-            return False
-        
-
-    def remove_instance(self):
-        """
-        Remove instance from blender data
-        """
-        assert(self.instance)
-
-        datablock_root = getattr(bpy.data, self.bl_id)
-        datablock_root.remove(self.instance)
-
-    def _dump(self, instance=None):
-        dumper = Dumper()
-        data = {}
-        # Dump animation data
-        if has_action(instance):
-            dumper = Dumper()
-            dumper.include_filter = ['action']
-            data['animation_data'] = dumper.dump(instance.animation_data)
-
-        if has_driver(instance):
-            dumped_drivers = {'animation_data': {'drivers': []}}
-            for driver in instance.animation_data.drivers:
-                dumped_drivers['animation_data']['drivers'].append(
-                    dump_driver(driver))
-
-            data.update(dumped_drivers)
-
-        if self.is_library:
-            data.update(dumper.dump(instance))
-        else:
-            data.update(self._dump_implementation(data, instance=instance))
-
-        return data
-
-    def _dump_implementation(self, data, target):
-        raise NotImplementedError
-
-    def _load(self, data, target):
-        # Load animation data
-        if 'animation_data' in data.keys():
-            if target.animation_data is None:
-                target.animation_data_create()
-
-            for d in target.animation_data.drivers:
-                target.animation_data.drivers.remove(d)
-
-            if 'drivers' in data['animation_data']:
-                for driver in data['animation_data']['drivers']:
-                    load_driver(target, driver)
-
-            if 'action' in data['animation_data']:
-                target.animation_data.action = bpy.data.actions[data['animation_data']['action']]
-        # Remove existing animation data if there is not more to load
-        elif hasattr(target, 'animation_data') and target.animation_data:
-            target.animation_data_clear()
-
-        if self.is_library:
-            return
-        else:
-            self._load_implementation(data, target)
-
-    def _load_implementation(self, data, target):
-        raise NotImplementedError
-
-    def resolve_deps(self):
-        dependencies = []
-
-        if has_action(self.instance):
-            dependencies.append(self.instance.animation_data.action)
-
-        if not self.is_library:
-            dependencies.extend(self._resolve_deps_implementation())
-
-        logging.debug(f"{self.instance} dependencies: {dependencies}")
-        return dependencies
-
-    def _resolve_deps_implementation(self):
-        return []
-
-    def is_valid(self):
-        return getattr(bpy.data, self.bl_id).get(self.data['name'])

multi_user/io_bpy/__init__.py

@@ -0,0 +1,62 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+import bpy
+from replication.protocol import ReplicatedDatablock
+
+__all__ = [
+    'bl_object',
+    'bl_mesh',
+    # 'bl_camera',
+    'bl_collection',
+    # 'bl_curve',
+    # 'bl_gpencil',
+    # 'bl_image',
+    # 'bl_light',
+    'bl_scene',
+    'bl_material',
+    # 'bl_library',
+    # 'bl_armature',
+    # 'bl_action',
+    # 'bl_world',
+    # 'bl_metaball',
+    # 'bl_lattice',
+    # 'bl_lightprobe',
+    # 'bl_speaker',
+    # 'bl_font',
+    # 'bl_sound',
+    # 'bl_file',
+    # 'bl_sequencer',
+    # 'bl_node_group',
+    # 'bl_texture',
+    # "bl_particle",
+]  # Order here defines execution order
+
+# if bpy.app.version[1] >= 91:
+#     __all__.append('bl_volume')
+
+from replication.protocol import DataTranslationProtocol
+
+def get_data_translation_protocol()-> DataTranslationProtocol:
+    """ Return a data translation protocol from implemented bpy types
+    """
+    bpy_protocol = DataTranslationProtocol()
+    for module_name in __all__:
+        impl  = globals().get(module_name)
+        if impl and hasattr(impl, "_type") and hasattr(impl, "_type"):
+            bpy_protocol.register_implementation(impl._type, impl._class)
+    return bpy_protocol

multi_user/io_bpy/bl_action.py

@@ -24,9 +24,14 @@ from enum import Enum
 
 from .. import utils
 from .dump_anything import (
-    Dumper, Loader, np_dump_collection, np_load_collection, remove_items_from_dict)
-from .bl_datablock import BlDatablock
-
+    Dumper,
+    Loader,
+    np_dump_collection,
+    np_load_collection,
+    remove_items_from_dict)
+from .bl_datablock import stamp_uuid
+from replication.protocol import ReplicatedDatablock
+from replication.objects import Node
 
 KEYFRAME = [
     'amplitude',
@@ -42,6 +47,68 @@ KEYFRAME = [
 ]
 
 
+def has_action(datablock):
+    """ Check if the datablock datablock has actions
+    """
+    return (hasattr(datablock, 'animation_data')
+            and datablock.animation_data
+            and datablock.animation_data.action)
+
+
+def has_driver(datablock):
+    """ Check if the datablock datablock is driven
+    """
+    return (hasattr(datablock, 'animation_data')
+            and datablock.animation_data
+            and datablock.animation_data.drivers)
+
+
+def dump_driver(driver):
+    dumper = Dumper()
+    dumper.depth = 6
+    data = dumper.dump(driver)
+
+    return data
+
+
+def load_driver(target_datablock, src_driver):
+    loader = Loader()
+    drivers = target_datablock.animation_data.drivers
+    src_driver_data = src_driver['driver']
+    new_driver = drivers.new(
+        src_driver['data_path'], index=src_driver['array_index'])
+
+    # Settings
+    new_driver.driver.type = src_driver_data['type']
+    new_driver.driver.expression = src_driver_data['expression']
+    loader.load(new_driver,  src_driver)
+
+    # Variables
+    for src_variable in src_driver_data['variables']:
+        src_var_data = src_driver_data['variables'][src_variable]
+        new_var = new_driver.driver.variables.new()
+        new_var.name = src_var_data['name']
+        new_var.type = src_var_data['type']
+
+        for src_target in src_var_data['targets']:
+            src_target_data = src_var_data['targets'][src_target]
+            new_var.targets[src_target].id = utils.resolve_from_id(
+                src_target_data['id'], src_target_data['id_type'])
+            loader.load(
+                new_var.targets[src_target],  src_target_data)
+
+    # Fcurve
+    new_fcurve = new_driver.keyframe_points
+    for p in reversed(new_fcurve):
+        new_fcurve.remove(p, fast=True)
+
+    new_fcurve.add(len(src_driver['keyframe_points']))
+
+    for index, src_point in enumerate(src_driver['keyframe_points']):
+        new_point = new_fcurve[index]
+        loader.load(new_point, src_driver['keyframe_points'][src_point])
+
+
 def dump_fcurve(fcurve: bpy.types.FCurve, use_numpy: bool = True) -> dict:
     """ Dump a sigle curve to a dict
 
@@ -129,26 +196,70 @@ def load_fcurve(fcurve_data, fcurve):
             fcurve.update()
 
 
-class BlAction(BlDatablock):
+def dump_animation_data(datablock, data):
+    if has_action(datablock):
+        dumper = Dumper()
+        dumper.include_filter = ['action']
+        data['animation_data'] = dumper.dump(datablock.animation_data)
+
+    if has_driver(datablock):
+        dumped_drivers = {'animation_data': {'drivers': []}}
+        for driver in datablock.animation_data.drivers:
+            dumped_drivers['animation_data']['drivers'].append(
+                dump_driver(driver))
+
+        data.update(dumped_drivers)
+
+
+def load_animation_data(data, datablock):
+    # Load animation data
+    if 'animation_data' in data.keys():
+        if datablock.animation_data is None:
+            datablock.animation_data_create()
+
+        for d in datablock.animation_data.drivers:
+            datablock.animation_data.drivers.remove(d)
+
+        if 'drivers' in data['animation_data']:
+            for driver in data['animation_data']['drivers']:
+                load_driver(datablock, driver)
+
+        if 'action' in data['animation_data']:
+            datablock.animation_data.action = bpy.data.actions[data['animation_data']['action']]
+    # Remove existing animation data if there is not more to load
+    elif hasattr(datablock, 'animation_data') and datablock.animation_data:
+        datablock.animation_data_clear()
+
+
+def resolve_animation_dependencies(datablock):
+    if has_action(datablock):
+        return [datablock.animation_data.action]
+    else:
+        return []
+
+
+class BlAction(ReplicatedDatablock):
     bl_id = "actions"
     bl_class = bpy.types.Action
     bl_check_common = False
     bl_icon = 'ACTION_TWEAK'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    @staticmethod
+    def construct(data: dict) -> object:
         return bpy.data.actions.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
         for dumped_fcurve in data["fcurves"]:
             dumped_data_path = dumped_fcurve["data_path"]
             dumped_array_index = dumped_fcurve["dumped_array_index"]
 
             # create fcurve if needed
-            fcurve = target.fcurves.find(
+            fcurve = datablock.fcurves.find(
                 dumped_data_path, index=dumped_array_index)
             if fcurve is None:
-                fcurve = target.fcurves.new(
+                fcurve = datablock.fcurves.new(
                     dumped_data_path, index=dumped_array_index)
 
             load_fcurve(dumped_fcurve, fcurve)
@@ -156,9 +267,12 @@ class BlAction(BlDatablock):
         id_root = data.get('id_root')
 
         if id_root:
-            target.id_root = id_root
+            datablock.id_root = id_root
+
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        stamp_uuid(datablock)
 
-    def _dump_implementation(self, data, instance=None):
         dumper = Dumper()
         dumper.exclude_filter = [
             'name_full',
@@ -173,11 +287,11 @@ class BlAction(BlDatablock):
             'users'
         ]
         dumper.depth = 1
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
 
         data["fcurves"] = []
 
-        for fcurve in instance.fcurves:
+        for fcurve in datablock.fcurves:
             data["fcurves"].append(dump_fcurve(fcurve, use_numpy=True))
 
         return data

multi_user/io_bpy/bl_armature.py

@@ -42,10 +42,10 @@ class BlArmature(BlDatablock):
     bl_icon = 'ARMATURE_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.armatures.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         # Load parent object
         parent_object = utils.find_from_attr(
             'uuid',
@@ -119,7 +119,7 @@ class BlArmature(BlDatablock):
         if 'EDIT' in current_mode:
             bpy.ops.object.mode_set(mode='EDIT')
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
 
         dumper = Dumper()

multi_user/io_bpy/bl_camera.py

@@ -30,11 +30,11 @@ class BlCamera(BlDatablock):
     bl_icon = 'CAMERA_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.cameras.new(data["name"])
 
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()       
         loader.load(target, data)
 
@@ -56,7 +56,7 @@ class BlCamera(BlDatablock):
                     target_img.image = bpy.data.images[img_id]
                     loader.load(target_img, img_data)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
 
         # TODO: background image support
@@ -105,9 +105,10 @@ class BlCamera(BlDatablock):
         ]
         return dumper.dump(instance)
     
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
-        for background in self.instance.background_images:
+        for background in datablock.background_images:
             if background.image:
                 deps.append(background.image)
         

multi_user/io_bpy/bl_collection.py

@@ -20,9 +20,9 @@ import bpy
 import mathutils
 
 from .. import utils
-from .bl_datablock import BlDatablock
 from .dump_anything import Loader, Dumper
-
+from replication.protocol import ReplicatedDatablock
+from replication.objects import Node
 
 def dump_collection_children(collection):
     collection_children = []
@@ -81,42 +81,37 @@ def resolve_collection_dependencies(collection):
 
     return deps
 
-class BlCollection(BlDatablock):
+class BlCollection(ReplicatedDatablock):
     bl_id = "collections"
     bl_icon = 'FILE_FOLDER'
     bl_class = bpy.types.Collection
     bl_check_common = True
     bl_reload_parent = False
     
-    def _construct(self, data):
-        if self.is_library:
-            with bpy.data.libraries.load(filepath=bpy.data.libraries[self.data['library']].filepath, link=True) as (sourceData, targetData):
-                targetData.collections = [
-                    name for name in sourceData.collections if name == self.data['name']]
+    @staticmethod
+    def construct(data: dict) -> object:
+        datablock = bpy.data.collections.new(node.data["name"])
+        return datablock
 
-            instance = bpy.data.collections[self.data['name']]
-
-            return instance
-
-        instance = bpy.data.collections.new(data["name"])
-        return instance
-
-    def _load_implementation(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
+        data = node.data
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
         # Objects
-        load_collection_objects(data['objects'], target)
+        load_collection_objects(data['objects'], datablock)
 
         # Link childrens
-        load_collection_childrens(data['children'], target)
+        load_collection_childrens(data['children'], datablock)
 
         # FIXME: Find a better way after the replication big refacotoring
         # Keep other user from deleting collection object by flushing their history
         utils.flush_history()
 
-    def _dump_implementation(self, data, instance=None):
-        assert(instance)
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        assert(datablock)
 
         dumper = Dumper()
         dumper.depth = 1
@@ -124,15 +119,19 @@ class BlCollection(BlDatablock):
             "name",
             "instance_offset"
         ]
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
 
         # dump objects
-        data['objects'] = dump_collection_objects(instance)
+        data['objects'] = dump_collection_objects(datablock)
 
         # dump children collections
-        data['children'] = dump_collection_children(instance)
+        data['children'] = dump_collection_children(datablock)
 
         return data
 
-    def _resolve_deps_implementation(self):
-        return resolve_collection_dependencies(self.instance)
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return resolve_collection_dependencies(datablock)
+
+_type = bpy.types.Collection
+_class = BlCollection

multi_user/io_bpy/bl_curve.py

@@ -141,10 +141,10 @@ class BlCurve(BlDatablock):
     bl_icon = 'CURVE_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.curves.new(data["name"], data["type"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
@@ -175,7 +175,7 @@ class BlCurve(BlDatablock):
             if src_materials:
                 load_materials_slots(src_materials, target.materials)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
         dumper = Dumper()
         # Conflicting attributes
@@ -222,10 +222,10 @@ class BlCurve(BlDatablock):
 
         return data
 
-    def _resolve_deps_implementation(self):
-        # TODO: resolve material
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
-        curve = self.instance
+        curve = datablock
 
         if isinstance(curve, T.TextCurve):
             deps.extend([
@@ -234,7 +234,7 @@ class BlCurve(BlDatablock):
                 curve.font_bold_italic,
                 curve.font_italic])
 
-        for material in self.instance.materials:
+        for material in curve.materials:
             if material:
                 deps.append(material)
 

multi_user/io_bpy/bl_datablock.py

@@ -0,0 +1,59 @@
+# ##### BEGIN GPL LICENSE BLOCK #####
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU General Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License
+#   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+
+import logging
+from collections.abc import Iterable
+
+import bpy
+import mathutils
+from replication.constants import DIFF_BINARY, DIFF_JSON, UP
+from replication.protocol import ReplicatedDatablock
+from replication.objects import Node
+
+from uuid import uuid4
+
+from .. import utils
+from .dump_anything import Dumper, Loader
+
+
+def get_datablock_from_uuid(uuid, default, ignore=[]):
+    if not uuid:
+        return default
+    for category in dir(bpy.data):
+        root = getattr(bpy.data, category)
+        if isinstance(root, Iterable) and category not in ignore:
+            for item in root:
+                if getattr(item, 'uuid', None) == uuid:
+                    return item
+    return default
+
+
+def resolve_datablock_from_root(node:Node, root)->object:
+    datablock_ref = utils.find_from_attr('uuid', node.uuid, root)
+
+    if not datablock_ref:
+        try:
+            datablock_ref = root[node.data['name']]
+        except Exception:
+            pass
+
+    return datablock_ref
+
+def stamp_uuid(datablock):
+    if not datablock.uuid:
+        datablock.uuid = str(uuid4())

multi_user/io_bpy/bl_file.py

@@ -24,7 +24,7 @@ from pathlib import Path
 import bpy
 import mathutils
 from replication.constants import DIFF_BINARY, UP
-from replication.data import ReplicatedDatablock
+from replication.protocol import ReplicatedDatablock
 
 from .. import utils
 from .dump_anything import Dumper, Loader
@@ -84,7 +84,7 @@ class BlFile(ReplicatedDatablock):
         if self.preferences.clear_memory_filecache:
                 del self.data['file']
 
-    def _dump(self, instance=None):
+    def dump(self, instance=None):
         """
         Read the file and return a dict as:
         {
@@ -114,7 +114,7 @@ class BlFile(ReplicatedDatablock):
 
         return data
 
-    def _load(self, data, target):
+    def load(self, data, target):
         """
         Writing the file
         """

multi_user/io_bpy/bl_font.py

@@ -34,7 +34,7 @@ class BlFont(BlDatablock):
     bl_icon = 'FILE_FONT'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         filename = data.get('filename')
 
         if filename == '<builtin>':
@@ -42,10 +42,10 @@ class BlFont(BlDatablock):
         else:
             return bpy.data.fonts.load(get_filepath(filename))
 
-    def _load(self, data, target):
+    def load(self, data, target):
         pass
 
-    def _dump(self, instance=None):
+    def dump(self, instance=None):
         if instance.filepath  == '<builtin>':
             filename = '<builtin>'
         else:
@@ -62,11 +62,12 @@ class BlFont(BlDatablock):
     def diff(self):
         return False
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
-        if self.instance.filepath and self.instance.filepath != '<builtin>':
-            ensure_unpacked(self.instance)
+        if datablock.filepath and datablock.filepath != '<builtin>':
+            ensure_unpacked(datablock)
 
-            deps.append(Path(bpy.path.abspath(self.instance.filepath)))
+            deps.append(Path(bpy.path.abspath(datablock.filepath)))
 
         return deps

multi_user/io_bpy/bl_gpencil.py

@@ -235,10 +235,10 @@ class BlGpencil(BlDatablock):
     bl_icon = 'GREASEPENCIL'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.grease_pencils.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         target.materials.clear()
         if "materials" in data.keys():
             for mat in data['materials']:
@@ -267,7 +267,7 @@ class BlGpencil(BlDatablock):
 
 
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
         dumper = Dumper()
         dumper.depth = 2
@@ -290,10 +290,11 @@ class BlGpencil(BlDatablock):
         data["eval_frame"] = bpy.context.scene.frame_current
         return data
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        for material in self.instance.materials:
+        for material in datablock.materials:
             deps.append(material)
 
         return deps

multi_user/io_bpy/bl_image.py

@@ -55,14 +55,14 @@ class BlImage(BlDatablock):
     bl_icon = 'IMAGE_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.images.new(
             name=data['name'],
             width=data['size'][0],
             height=data['size'][1]
         )
 
-    def _load(self, data, target):
+    def load(self, data, target):
         loader = Loader()
         loader.load(data, target)
 
@@ -70,7 +70,7 @@ class BlImage(BlDatablock):
         target.filepath_raw = get_filepath(data['filename'])
         target.colorspace_settings.name = data["colorspace_settings"]["name"]
 
-    def _dump(self, instance=None):
+    def dump(self, instance=None):
         assert(instance)
 
         filename = Path(instance.filepath).name
@@ -101,23 +101,24 @@ class BlImage(BlDatablock):
         else:
             return False
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        if self.instance.packed_file:
-            filename = Path(bpy.path.abspath(self.instance.filepath)).name
-            self.instance.filepath_raw = get_filepath(filename)
-            self.instance.save()
+        if datablock.packed_file:
+            filename = Path(bpy.path.abspath(datablock.filepath)).name
+            datablock.filepath_raw = get_filepath(filename)
+            datablock.save()
             # An image can't be unpacked to the modified path
             # TODO: make a bug report
-            self.instance.unpack(method="REMOVE")
+            datablock.unpack(method="REMOVE")
 
-        elif self.instance.source == "GENERATED":
-            filename = f"{self.instance.name}.png"
-            self.instance.filepath = get_filepath(filename)
-            self.instance.save()
+        elif datablock.source == "GENERATED":
+            filename = f"{datablock.name}.png"
+            datablock.filepath = get_filepath(filename)
+            datablock.save()
 
-        if self.instance.filepath:
-            deps.append(Path(bpy.path.abspath(self.instance.filepath)))
+        if datablock.filepath:
+            deps.append(Path(bpy.path.abspath(datablock.filepath)))
 
         return deps

multi_user/io_bpy/bl_lattice.py

@@ -33,10 +33,10 @@ class BlLattice(BlDatablock):
     bl_icon = 'LATTICE_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.lattices.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         if target.is_editmode:
             raise ContextError("lattice is in edit mode")
 
@@ -45,7 +45,7 @@ class BlLattice(BlDatablock):
 
         np_load_collection(data['points'], target.points, POINT)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         if instance.is_editmode:
             raise ContextError("lattice is in edit mode")
 

multi_user/io_bpy/bl_library.py

@@ -30,14 +30,14 @@ class BlLibrary(BlDatablock):
     bl_icon = 'LIBRARY_DATA_DIRECT'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         with bpy.data.libraries.load(filepath=data["filepath"], link=True) as (sourceData, targetData):
             targetData = sourceData
             return sourceData
-    def _load(self, data, target):
+    def load(self, data, target):
         pass
 
-    def _dump(self, instance=None):
+    def dump(self, instance=None):
         assert(instance)
         dumper = Dumper()
         return dumper.dump(instance)

multi_user/io_bpy/bl_light.py

@@ -30,14 +30,14 @@ class BlLight(BlDatablock):
     bl_icon = 'LIGHT_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.lights.new(data["name"], data["type"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
         dumper = Dumper()
         dumper.depth = 3

multi_user/io_bpy/bl_lightprobe.py

@@ -31,7 +31,7 @@ class BlLightprobe(BlDatablock):
     bl_icon = 'LIGHTPROBE_GRID'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         type = 'CUBE' if data['type'] == 'CUBEMAP' else data['type']
         # See https://developer.blender.org/D6396
         if bpy.app.version[1] >= 83:
@@ -39,11 +39,11 @@ class BlLightprobe(BlDatablock):
         else:
             logging.warning("Lightprobe replication only supported since 2.83. See https://developer.blender.org/D6396")
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
         if bpy.app.version[1] < 83:
             logging.warning("Lightprobe replication only supported since 2.83. See https://developer.blender.org/D6396")

multi_user/io_bpy/bl_material.py

@@ -24,17 +24,19 @@ import re
 from uuid import uuid4
 
 from .dump_anything import Loader, Dumper
-from .bl_datablock import BlDatablock, get_datablock_from_uuid
+from .bl_datablock import get_datablock_from_uuid, stamp_uuid
+from replication.protocol import ReplicatedDatablock
+from replication.objects import Node
 
 NODE_SOCKET_INDEX = re.compile('\[(\d*)\]')
-IGNORED_SOCKETS = ['GEOMETRY']
+IGNORED_SOCKETS = ['GEOMETRY', 'SHADER', 'CUSTOM']
 
 def load_node(node_data: dict, node_tree: bpy.types.ShaderNodeTree):
     """ Load a node into a node_tree from a dict
 
         :arg node_data: dumped node data
         :type node_data: dict
-        :arg node_tree: target node_tree
+        :arg node_tree: datablock node_tree
         :type node_tree: bpy.types.NodeTree
     """
     loader = Loader()
@@ -53,31 +55,136 @@ def load_node(node_data: dict, node_tree: bpy.types.ShaderNodeTree):
     inputs_data = node_data.get('inputs')
     if inputs_data:
         inputs = [i for i in target_node.inputs if i.type not in IGNORED_SOCKETS]
-
-        for idx, inpt in enumerate(inputs_data):
-            if idx < len(inputs) and hasattr(inputs[idx], "default_value"):
+        for idx, inpt in enumerate(inputs):
+            if idx < len(inputs_data) and hasattr(inpt, "default_value"):
+                loaded_input = inputs_data[idx]
                 try:
-                    inputs[idx].default_value = inpt
+                    if inpt.type in ['OBJECT', 'COLLECTION']:
+                        inpt.default_value = get_datablock_from_uuid(loaded_input, None)
+                    else:
+                        inpt.default_value = loaded_input
                 except Exception as e:
-                    logging.warning(f"Node {target_node.name} input {inputs[idx].name} parameter not supported, skipping ({e})")
+                    logging.warning(f"Node {target_node.name} input {inpt.name} parameter not supported, skipping ({e})")
             else:
                 logging.warning(f"Node {target_node.name} input length mismatch.")
 
     outputs_data = node_data.get('outputs')
     if outputs_data:
         outputs = [o for o in target_node.outputs if o.type not in IGNORED_SOCKETS]
-        for idx, output in enumerate(outputs_data):
-            if idx < len(outputs) and hasattr(outputs[idx], "default_value"):
+        for idx, output in enumerate(outputs):
+            if idx < len(outputs_data) and hasattr(output, "default_value"):
+                loaded_output = outputs_data[idx]
                 try:
-                    outputs[idx].default_value = output
+                    if output.type in ['OBJECT', 'COLLECTION']:
+                        output.default_value = get_datablock_from_uuid(loaded_output, None)
+                    else:
+                        output.default_value = loaded_output
                 except Exception as e:
                     logging.warning(
-                        f"Node {target_node.name} output {outputs[idx].name} parameter not supported, skipping ({e})")
+                        f"Node {target_node.name} output {output.name} parameter not supported, skipping ({e})")
             else:
                 logging.warning(
                     f"Node {target_node.name} output length mismatch.")
 
 
+def dump_node(node: bpy.types.ShaderNode) -> dict:
+    """ Dump a single node to a dict
+
+        :arg node: datablock node
+        :type node: bpy.types.Node
+        :retrun: dict
+    """
+
+    node_dumper = Dumper()
+    node_dumper.depth = 1
+    node_dumper.exclude_filter = [
+        "dimensions",
+        "show_expanded",
+        "name_full",
+        "select",
+        "bl_label",
+        "bl_height_min",
+        "bl_height_max",
+        "bl_height_default",
+        "bl_width_min",
+        "bl_width_max",
+        "type",
+        "bl_icon",
+        "bl_width_default",
+        "bl_static_type",
+        "show_tetxure",
+        "is_active_output",
+        "hide",
+        "show_options",
+        "show_preview",
+        "show_texture",
+        "outputs",
+        "width_hidden",
+        "image"
+    ]
+
+    dumped_node = node_dumper.dump(node)
+
+    if node.parent:
+        dumped_node['parent'] = node.parent.name
+
+    dump_io_needed = (node.type not in ['REROUTE', 'OUTPUT_MATERIAL'])
+
+    if dump_io_needed:
+        io_dumper = Dumper()
+        io_dumper.depth = 2
+        io_dumper.include_filter = ["default_value"]
+
+        if hasattr(node, 'inputs'):
+            dumped_node['inputs'] = []
+            inputs = [i for i in node.inputs if i.type not in IGNORED_SOCKETS]
+            for idx, inpt in enumerate(inputs):
+                if hasattr(inpt, 'default_value'):
+                    if isinstance(inpt.default_value, bpy.types.ID):
+                        dumped_input = inpt.default_value.uuid
+                    else:
+                        dumped_input = io_dumper.dump(inpt.default_value)
+
+                    dumped_node['inputs'].append(dumped_input)
+
+        if hasattr(node, 'outputs'):
+            dumped_node['outputs'] = []
+            for idx, output in enumerate(node.outputs):
+                if output.type not in IGNORED_SOCKETS:
+                    if hasattr(output, 'default_value'):
+                        dumped_node['outputs'].append(
+                            io_dumper.dump(output.default_value))
+
+    if hasattr(node, 'color_ramp'):
+        ramp_dumper = Dumper()
+        ramp_dumper.depth = 4
+        ramp_dumper.include_filter = [
+            'elements',
+            'alpha',
+            'color',
+            'position',
+            'interpolation',
+            'hue_interpolation',
+            'color_mode'
+        ]
+        dumped_node['color_ramp'] = ramp_dumper.dump(node.color_ramp)
+    if hasattr(node, 'mapping'):
+        curve_dumper = Dumper()
+        curve_dumper.depth = 5
+        curve_dumper.include_filter = [
+            'curves',
+            'points',
+            'location'
+        ]
+        dumped_node['mapping'] = curve_dumper.dump(node.mapping)
+    if hasattr(node, 'image') and getattr(node, 'image'):
+        dumped_node['image_uuid'] = node.image.uuid
+    if hasattr(node, 'node_tree') and getattr(node, 'node_tree'):
+        dumped_node['node_tree_uuid'] = node.node_tree.uuid
+    return dumped_node
+
+
+
 def load_links(links_data, node_tree):
     """ Load node_tree links from a list
 
@@ -120,93 +227,6 @@ def dump_links(links):
     return links_data
 
 
-def dump_node(node: bpy.types.ShaderNode) -> dict:
-    """ Dump a single node to a dict
-
-        :arg node: target node
-        :type node: bpy.types.Node
-        :retrun: dict
-    """
-
-    node_dumper = Dumper()
-    node_dumper.depth = 1
-    node_dumper.exclude_filter = [
-        "dimensions",
-        "show_expanded",
-        "name_full",
-        "select",
-        "bl_label",
-        "bl_height_min",
-        "bl_height_max",
-        "bl_height_default",
-        "bl_width_min",
-        "bl_width_max",
-        "type",
-        "bl_icon",
-        "bl_width_default",
-        "bl_static_type",
-        "show_tetxure",
-        "is_active_output",
-        "hide",
-        "show_options",
-        "show_preview",
-        "show_texture",
-        "outputs",
-        "width_hidden",
-        "image"
-    ]
-
-    dumped_node = node_dumper.dump(node)
-
-    dump_io_needed = (node.type not in ['REROUTE', 'OUTPUT_MATERIAL'])
-
-    if dump_io_needed:
-        io_dumper = Dumper()
-        io_dumper.depth = 2
-        io_dumper.include_filter = ["default_value"]
-
-        if hasattr(node, 'inputs'):
-            dumped_node['inputs'] = []
-            for idx, inpt in enumerate(node.inputs):
-                if hasattr(inpt, 'default_value'):
-                    dumped_node['inputs'].append(
-                        io_dumper.dump(inpt.default_value))
-
-        if hasattr(node, 'outputs'):
-            dumped_node['outputs'] = []
-            for idx, output in enumerate(node.outputs):
-                if hasattr(output, 'default_value'):
-                    dumped_node['outputs'].append(
-                        io_dumper.dump(output.default_value))
-
-    if hasattr(node, 'color_ramp'):
-        ramp_dumper = Dumper()
-        ramp_dumper.depth = 4
-        ramp_dumper.include_filter = [
-            'elements',
-            'alpha',
-            'color',
-            'position',
-            'interpolation',
-            'color_mode'
-        ]
-        dumped_node['color_ramp'] = ramp_dumper.dump(node.color_ramp)
-    if hasattr(node, 'mapping'):
-        curve_dumper = Dumper()
-        curve_dumper.depth = 5
-        curve_dumper.include_filter = [
-            'curves',
-            'points',
-            'location'
-        ]
-        dumped_node['mapping'] = curve_dumper.dump(node.mapping)
-    if hasattr(node, 'image') and getattr(node, 'image'):
-        dumped_node['image_uuid'] = node.image.uuid
-    if hasattr(node, 'node_tree') and getattr(node, 'node_tree'):
-        dumped_node['node_tree_uuid'] = node.node_tree.uuid
-    return dumped_node
-
-
 def dump_node_tree(node_tree: bpy.types.ShaderNodeTree) -> dict:
     """ Dump a shader node_tree to a dict including links and nodes
 
@@ -231,7 +251,7 @@ def dump_node_tree(node_tree: bpy.types.ShaderNodeTree) -> dict:
 def dump_node_tree_sockets(sockets: bpy.types.Collection) -> dict:
     """ dump sockets of a shader_node_tree
 
-        :arg target_node_tree: target node_tree
+        :arg target_node_tree: datablock node_tree
         :type target_node_tree: bpy.types.NodeTree
         :arg socket_id: socket identifer 
         :type socket_id: str
@@ -254,7 +274,7 @@ def load_node_tree_sockets(sockets: bpy.types.Collection,
                            sockets_data: dict):
     """ load sockets of a shader_node_tree
 
-        :arg target_node_tree: target node_tree
+        :arg target_node_tree: datablock node_tree
         :type target_node_tree: bpy.types.NodeTree
         :arg socket_id: socket identifer 
         :type socket_id: str
@@ -263,7 +283,7 @@ def load_node_tree_sockets(sockets: bpy.types.Collection,
     """
     # Check for removed sockets
     for socket in sockets:
-        if not [s for s in sockets_data if socket['uuid'] == s[2]]:
+        if not [s for s in sockets_data if 'uuid' in socket and socket['uuid'] == s[2]]:
             sockets.remove(socket)
 
     # Check for new sockets
@@ -282,7 +302,7 @@ def load_node_tree(node_tree_data: dict, target_node_tree: bpy.types.ShaderNodeT
 
         :arg node_tree_data: dumped node data
         :type node_tree_data: dict
-        :arg target_node_tree: target node_tree
+        :arg target_node_tree: datablock node_tree
         :type target_node_tree: bpy.types.NodeTree
     """
     # TODO: load only required nodes
@@ -303,6 +323,14 @@ def load_node_tree(node_tree_data: dict, target_node_tree: bpy.types.ShaderNodeT
     for node in node_tree_data["nodes"]:
         load_node(node_tree_data["nodes"][node], target_node_tree)
 
+    for node_id, node_data in node_tree_data["nodes"].items():
+        target_node = target_node_tree.nodes.get(node_id, None)
+        if target_node is None:
+            continue
+        elif 'parent' in node_data:
+            target_node.parent =  target_node_tree.nodes[node_data['parent']]
+        else:
+            target_node.parent = None
     # TODO: load only required nodes links
     # Load nodes links
     target_node_tree.links.clear()
@@ -317,6 +345,8 @@ def get_node_tree_dependencies(node_tree: bpy.types.NodeTree) -> list:
     def has_node_group(node): return (
         hasattr(node, 'node_tree') and node.node_tree)
 
+    def has_texture(node): return (
+        node.type in ['ATTRIBUTE_SAMPLE_TEXTURE','TEXTURE']  and node.texture)
     deps = []
 
     for node in node_tree.nodes:
@@ -324,6 +354,8 @@ def get_node_tree_dependencies(node_tree: bpy.types.NodeTree) -> list:
             deps.append(node.image)
         elif has_node_group(node):
             deps.append(node.node_tree)
+        elif has_texture(node):
+            deps.append(node.texture)
 
     return deps
 
@@ -343,7 +375,7 @@ def load_materials_slots(src_materials: list, dst_materials: bpy.types.bpy_prop_
 
         :arg src_materials: dumped material collection (ex: object.materials)
         :type src_materials: list of tuples (uuid, name) 
-        :arg dst_materials: target material collection pointer
+        :arg dst_materials: datablock material collection pointer
         :type dst_materials: bpy.types.bpy_prop_collection
     """
     # MATERIAL SLOTS
@@ -354,44 +386,46 @@ def load_materials_slots(src_materials: list, dst_materials: bpy.types.bpy_prop_
         if mat_uuid is not None:
             mat_ref = get_datablock_from_uuid(mat_uuid, None)
         else:
-            mat_ref = bpy.data.materials.get(mat_name, None)
-
-        if mat_ref is None:
-            raise Exception(f"Material {mat_name} doesn't exist")
+            mat_ref = bpy.data.materials[mat_name]
 
         dst_materials.append(mat_ref)
 
 
-class BlMaterial(BlDatablock):
+class BlMaterial(ReplicatedDatablock):
     bl_id = "materials"
     bl_class = bpy.types.Material
     bl_check_common = False
     bl_icon = 'MATERIAL_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    @staticmethod
+    def construct(data: dict) -> object:
         return bpy.data.materials.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
+        data = data
         loader = Loader()
 
         is_grease_pencil = data.get('is_grease_pencil')
         use_nodes = data.get('use_nodes')
 
-        loader.load(target, data)
+        loader.load(datablock, data)
 
         if is_grease_pencil:
-            if not target.is_grease_pencil:
-                bpy.data.materials.create_gpencil_data(target)
-            loader.load(target.grease_pencil, data['grease_pencil'])
+            if not datablock.is_grease_pencil:
+                bpy.data.materials.create_gpencil_data(datablock)
+            loader.load(datablock.grease_pencil, data['grease_pencil'])
         elif use_nodes:
-            if target.node_tree is None:
-                target.use_nodes = True
+            if datablock.node_tree is None:
+                datablock.use_nodes = True
 
-            load_node_tree(data['node_tree'], target.node_tree)
+            load_node_tree(data['node_tree'], datablock.node_tree)
+
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        stamp_uuid(datablock)
 
-    def _dump_implementation(self, data, instance=None):
-        assert(instance)
         mat_dumper = Dumper()
         mat_dumper.depth = 2
         mat_dumper.include_filter = [
@@ -417,9 +451,9 @@ class BlMaterial(BlDatablock):
             'line_priority',
             'is_grease_pencil'
         ]
-        data = mat_dumper.dump(instance)
+        data = mat_dumper.dump(datablock)
 
-        if instance.is_grease_pencil:
+        if datablock.is_grease_pencil:
             gp_mat_dumper = Dumper()
             gp_mat_dumper.depth = 3
 
@@ -453,19 +487,21 @@ class BlMaterial(BlDatablock):
                 'use_overlap_strokes',
                 'use_fill_holdout',
             ]
-            data['grease_pencil'] = gp_mat_dumper.dump(instance.grease_pencil)
-        elif instance.use_nodes:
-            data['node_tree'] = dump_node_tree(instance.node_tree)
+            data['grease_pencil'] = gp_mat_dumper.dump(datablock.grease_pencil)
+        elif datablock.use_nodes:
+            data['node_tree'] = dump_node_tree(datablock.node_tree)
 
         return data
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         # TODO: resolve node group deps
         deps = []
 
-        if self.instance.use_nodes:
-            deps.extend(get_node_tree_dependencies(self.instance.node_tree))
-        if self.is_library:
-            deps.append(self.instance.library)
+        if datablock.use_nodes:
+            deps.extend(get_node_tree_dependencies(datablock.node_tree))
 
         return deps
+
+_type = bpy.types.Material
+_class = BlMaterial

multi_user/io_bpy/bl_mesh.py

@@ -22,12 +22,21 @@ import mathutils
 import logging
 import numpy as np
 
-from .dump_anything import Dumper, Loader, np_load_collection_primitives, np_dump_collection_primitive, np_load_collection, np_dump_collection
+from .dump_anything import (Dumper,
+                            Loader,
+                            np_load_collection_primitives,
+                            np_dump_collection_primitive,
+                            np_load_collection, np_dump_collection)
 from replication.constants import DIFF_BINARY
 from replication.exception import ContextError
-from .bl_datablock import BlDatablock, get_datablock_from_uuid
+from replication.protocol import ReplicatedDatablock
+from replication.objects import Node
+
+from .bl_datablock import get_datablock_from_uuid, stamp_uuid
 from .bl_material import dump_materials_slots, load_materials_slots
 
+from ..preferences import get_preferences
+
 VERTICE = ['co']
 
 EDGE = [
@@ -49,80 +58,87 @@ POLYGON = [
     'material_index',
 ]
 
-class BlMesh(BlDatablock):
+
+class BlMesh(ReplicatedDatablock):
     bl_id = "meshes"
     bl_class = bpy.types.Mesh
     bl_check_common = False
     bl_icon = 'MESH_DATA'
     bl_reload_parent = True
 
-    def _construct(self, data):
-        instance = bpy.data.meshes.new(data["name"])
-        instance.uuid = self.uuid
-        return instance
+    @staticmethod
+    def construct(data: dict) -> object:
+        datablock = bpy.data.meshes.new(data["name"])
+        datablock.uuid = data['uuid']
+        return datablock
 
-    def _load_implementation(self, data, target):
-        if not target or target.is_editmode:
+    @staticmethod
+    def load(data: dict, datablock: object):
+        data = data
+
+        if not datablock or datablock.is_editmode:
             raise ContextError
         else:
             loader = Loader()
-            loader.load(target, data)
+            loader.load(datablock, data)
 
             # MATERIAL SLOTS
             src_materials = data.get('materials', None)
             if src_materials:
-                load_materials_slots(src_materials, target.materials)
+                load_materials_slots(src_materials, datablock.materials)
 
             # CLEAR GEOMETRY
-            if target.vertices:
-                target.clear_geometry()
+            if datablock.vertices:
+                datablock.clear_geometry()
 
-            target.vertices.add(data["vertex_count"])
-            target.edges.add(data["egdes_count"])
-            target.loops.add(data["loop_count"])
-            target.polygons.add(data["poly_count"])
+            datablock.vertices.add(data["vertex_count"])
+            datablock.edges.add(data["egdes_count"])
+            datablock.loops.add(data["loop_count"])
+            datablock.polygons.add(data["poly_count"])
 
             # LOADING
-            np_load_collection(data['vertices'], target.vertices, VERTICE)
-            np_load_collection(data['edges'], target.edges, EDGE)
-            np_load_collection(data['loops'], target.loops, LOOP)
-            np_load_collection(data["polygons"],target.polygons, POLYGON)
+            np_load_collection(data['vertices'], datablock.vertices, VERTICE)
+            np_load_collection(data['edges'], datablock.edges, EDGE)
+            np_load_collection(data['loops'], datablock.loops, LOOP)
+            np_load_collection(data["polygons"], datablock.polygons, POLYGON)
 
             # UV Layers
             if 'uv_layers' in data.keys():
                 for layer in data['uv_layers']:
-                    if layer not in target.uv_layers:
-                        target.uv_layers.new(name=layer)
+                    if layer not in datablock.uv_layers:
+                        datablock.uv_layers.new(name=layer)
 
                     np_load_collection_primitives(
-                        target.uv_layers[layer].data, 
-                        'uv', 
+                        datablock.uv_layers[layer].data,
+                        'uv',
                         data["uv_layers"][layer]['data'])
-            
+
             # Vertex color
             if 'vertex_colors' in data.keys():
                 for color_layer in data['vertex_colors']:
-                    if color_layer not in target.vertex_colors:
-                        target.vertex_colors.new(name=color_layer)
+                    if color_layer not in datablock.vertex_colors:
+                        datablock.vertex_colors.new(name=color_layer)
 
                     np_load_collection_primitives(
-                        target.vertex_colors[color_layer].data, 
-                        'color', 
+                        datablock.vertex_colors[color_layer].data,
+                        'color',
                         data["vertex_colors"][color_layer]['data'])
 
-            target.validate()
-            target.update()
+            datablock.validate()
+            datablock.update()
 
-    def _dump_implementation(self, data, instance=None):
-        assert(instance)
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        stamp_uuid(datablock)
 
-        if (instance.is_editmode or bpy.context.mode == "SCULPT") and not self.preferences.sync_flags.sync_during_editmode:
+        if (datablock.is_editmode or bpy.context.mode == "SCULPT") and not get_preferences().sync_flags.sync_during_editmode:
             raise ContextError("Mesh is in edit mode")
-        mesh = instance
+        mesh = datablock
 
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
+            'uuid'
             'name',
             'use_auto_smooth',
             'auto_smooth_angle',
@@ -153,23 +169,26 @@ class BlMesh(BlDatablock):
             data['uv_layers'] = {}
             for layer in mesh.uv_layers:
                 data['uv_layers'][layer.name] = {}
-                data['uv_layers'][layer.name]['data'] = np_dump_collection_primitive(layer.data, 'uv')
+                data['uv_layers'][layer.name]['data'] = np_dump_collection_primitive(
+                    layer.data, 'uv')
 
         # Vertex color
         if mesh.vertex_colors:
             data['vertex_colors'] = {}
             for color_map in mesh.vertex_colors:
                 data['vertex_colors'][color_map.name] = {}
-                data['vertex_colors'][color_map.name]['data'] = np_dump_collection_primitive(color_map.data, 'color')
+                data['vertex_colors'][color_map.name]['data'] = np_dump_collection_primitive(
+                    color_map.data, 'color')
 
         # Materials
-        data['materials'] = dump_materials_slots(instance.materials)
+        data['materials'] = dump_materials_slots(datablock.materials)
         return data
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        for material in self.instance.materials:
+        for material in datablock.materials:
             if material:
                 deps.append(material)
 
@@ -177,7 +196,10 @@ class BlMesh(BlDatablock):
 
     def diff(self):
         if 'EDIT' in bpy.context.mode \
-                and not self.preferences.sync_flags.sync_during_editmode:
+                and not get_preferences().sync_flags.sync_during_editmode:
             return False
         else:
             return super().diff()
+
+_type = bpy.types.Mesh
+_class = BlMesh

multi_user/io_bpy/bl_metaball.py

@@ -69,10 +69,10 @@ class BlMetaball(BlDatablock):
     bl_icon = 'META_BALL'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.metaballs.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
@@ -83,7 +83,7 @@ class BlMetaball(BlDatablock):
 
         load_metaball_elements(data['elements'], target.elements)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
         dumper = Dumper()
         dumper.depth = 1

multi_user/io_bpy/bl_node_group.py

@@ -32,14 +32,15 @@ class BlNodeGroup(BlDatablock):
     bl_icon = 'NODETREE'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.node_groups.new(data["name"], data["type"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         load_node_tree(data, target)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         return dump_node_tree(instance)
 
-    def _resolve_deps_implementation(self):
-        return get_node_tree_dependencies(self.instance)
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
+        return get_node_tree_dependencies(datablock)

multi_user/io_bpy/bl_object.py

@@ -21,8 +21,17 @@ import re
 import bpy
 import mathutils
 from replication.exception import ContextError
+from replication.objects import Node
+from replication.protocol import ReplicatedDatablock
 
-from .bl_datablock import BlDatablock, get_datablock_from_uuid
+from .bl_datablock import get_datablock_from_uuid, stamp_uuid
+from .bl_action import (load_animation_data,
+                        dump_animation_data,
+                        resolve_animation_dependencies)
+
+from ..preferences import get_preferences
+from .bl_datablock import get_datablock_from_uuid
+from .bl_material import IGNORED_SOCKETS
 from .dump_anything import (
     Dumper,
     Loader,
@@ -30,32 +39,97 @@ from .dump_anything import (
     np_dump_collection)
 
 
-
 SKIN_DATA = [
     'radius',
     'use_loose',
     'use_root'
 ]
 
-def get_input_index(e):
-    return int(re.findall('[0-9]+', e)[0])
+if bpy.app.version[1] >= 93:
+    SUPPORTED_GEOMETRY_NODE_PARAMETERS = (int, str, float)
+else:
+    SUPPORTED_GEOMETRY_NODE_PARAMETERS = (int, str)
+    logging.warning("Geometry node Float parameter not supported in \
+                    blender 2.92.")
+
+def get_node_group_inputs(node_group):
+    inputs = []
+    for inpt in node_group.inputs:
+        if inpt.type in IGNORED_SOCKETS:
+            continue
+        else:
+            inputs.append(inpt)
+    return inputs
+    # return [inpt.identifer for inpt in node_group.inputs if  inpt.type not in IGNORED_SOCKETS]
 
 
+def dump_physics(target: bpy.types.Object)->dict:
+    """ 
+        Dump all physics settings from a given object excluding modifier 
+        related physics settings (such as softbody, cloth, dynapaint and fluid) 
+    """
+    dumper = Dumper()
+    dumper.depth = 1
+    physics_data = {}
+
+    # Collisions (collision)
+    if target.collision and target.collision.use:
+        physics_data['collision'] = dumper.dump(target.collision)
+
+    # Field (field)
+    if target.field and target.field.type != "NONE":
+        physics_data['field'] = dumper.dump(target.field)
+
+    # Rigid Body (rigid_body)
+    if target.rigid_body:
+        physics_data['rigid_body'] = dumper.dump(target.rigid_body)
+
+    # Rigid Body constraint (rigid_body_constraint)
+    if target.rigid_body_constraint:
+        physics_data['rigid_body_constraint'] = dumper.dump(target.rigid_body_constraint)
+
+    return physics_data
+
+def load_physics(dumped_settings: dict, target: bpy.types.Object):
+    """  Load all physics settings from a given object excluding modifier 
+        related physics settings (such as softbody, cloth, dynapaint and fluid) 
+    """
+    loader = Loader()
+
+    if 'collision' in dumped_settings:
+        loader.load(target.collision, dumped_settings['collision'])
+
+    if 'field' in dumped_settings:
+        loader.load(target.field, dumped_settings['field'])
+
+    if 'rigid_body' in dumped_settings:
+        if not target.rigid_body:
+            bpy.ops.rigidbody.object_add({"object": target})
+        loader.load(target.rigid_body, dumped_settings['rigid_body'])
+    elif target.rigid_body:
+        bpy.ops.rigidbody.object_remove({"object": target})
+
+    if 'rigid_body_constraint' in dumped_settings:
+        if not target.rigid_body_constraint:
+            bpy.ops.rigidbody.constraint_add({"object": target})
+        loader.load(target.rigid_body_constraint, dumped_settings['rigid_body_constraint'])
+    elif target.rigid_body_constraint:
+        bpy.ops.rigidbody.constraint_remove({"object": target})
+    
 def dump_modifier_geometry_node_inputs(modifier: bpy.types.Modifier) -> list:
     """ Dump geometry node modifier input properties
 
         :arg modifier: geometry node modifier to dump
         :type modifier: bpy.type.Modifier
     """
-    inputs_name = [p for p in dir(modifier) if "Input_" in p]
-    inputs_name.sort(key=get_input_index)
     dumped_inputs = []
-    for inputs_index, input_name in enumerate(inputs_name):
-        input_value = modifier[input_name]
+    for inpt in get_node_group_inputs(modifier.node_group):
+        input_value = modifier[inpt.identifier]
+
         dumped_input = None
         if isinstance(input_value, bpy.types.ID):
             dumped_input = input_value.uuid
-        elif type(input_value) in [int, str, float]:
+        elif isinstance(input_value, SUPPORTED_GEOMETRY_NODE_PARAMETERS):
             dumped_input = input_value
         elif hasattr(input_value, 'to_list'):
             dumped_input = input_value.to_list()
@@ -73,18 +147,16 @@ def load_modifier_geometry_node_inputs(dumped_modifier: dict, target_modifier: b
         :type target_modifier: bpy.type.Modifier
     """
 
-    inputs_name = [p for p in dir(target_modifier) if "Input_" in p]
-    inputs_name.sort(key=get_input_index)
-    for input_index, input_name in enumerate(inputs_name):
+    for input_index, inpt in enumerate(get_node_group_inputs(target_modifier.node_group)):
         dumped_value = dumped_modifier['inputs'][input_index]
-        input_value = target_modifier[input_name]
-        if type(input_value) in [int, str, float]:
-            input_value = dumped_value
+        input_value = target_modifier[inpt.identifier]
+        if isinstance(input_value, SUPPORTED_GEOMETRY_NODE_PARAMETERS):
+            target_modifier[inpt.identifier] = dumped_value
         elif hasattr(input_value, 'to_list'):
             for index in range(len(input_value)):
                 input_value[index] = dumped_value[index]
-        else:
-            target_modifier[input_name] = get_datablock_from_uuid(
+        elif inpt.type in ['COLLECTION', 'OBJECT']:
+            target_modifier[inpt.identifier] = get_datablock_from_uuid(
                 dumped_value, None)
 
 
@@ -95,45 +167,40 @@ def load_pose(target_bone, data):
 
 
 def find_data_from_name(name=None):
-    instance = None
+    datablock = None
     if not name:
         pass
     elif name in bpy.data.meshes.keys():
-        instance = bpy.data.meshes[name]
+        datablock = bpy.data.meshes[name]
     elif name in bpy.data.lights.keys():
-        instance = bpy.data.lights[name]
+        datablock = bpy.data.lights[name]
     elif name in bpy.data.cameras.keys():
-        instance = bpy.data.cameras[name]
+        datablock = bpy.data.cameras[name]
     elif name in bpy.data.curves.keys():
-        instance = bpy.data.curves[name]
+        datablock = bpy.data.curves[name]
     elif name in bpy.data.metaballs.keys():
-        instance = bpy.data.metaballs[name]
+        datablock = bpy.data.metaballs[name]
     elif name in bpy.data.armatures.keys():
-        instance = bpy.data.armatures[name]
+        datablock = bpy.data.armatures[name]
     elif name in bpy.data.grease_pencils.keys():
-        instance = bpy.data.grease_pencils[name]
+        datablock = bpy.data.grease_pencils[name]
     elif name in bpy.data.curves.keys():
-        instance = bpy.data.curves[name]
+        datablock = bpy.data.curves[name]
     elif name in bpy.data.lattices.keys():
-        instance = bpy.data.lattices[name]
+        datablock = bpy.data.lattices[name]
     elif name in bpy.data.speakers.keys():
-        instance = bpy.data.speakers[name]
+        datablock = bpy.data.speakers[name]
     elif name in bpy.data.lightprobes.keys():
         # Only supported since 2.83
         if bpy.app.version[1] >= 83:
-            instance = bpy.data.lightprobes[name]
+            datablock = bpy.data.lightprobes[name]
         else:
             logging.warning(
                 "Lightprobe replication only supported since 2.83. See https://developer.blender.org/D6396")
     elif bpy.app.version[1] >= 91 and name in bpy.data.volumes.keys():
         # Only supported since 2.91
-        instance = bpy.data.volumes[name]
-    return instance
-
-
-def load_data(object, name):
-    logging.info("loading data")
-    pass
+        datablock = bpy.data.volumes[name]
+    return datablock
 
 
 def _is_editmode(object: bpy.types.Object) -> bool:
@@ -161,19 +228,25 @@ def find_textures_dependencies(modifiers: bpy.types.bpy_prop_collection) -> [bpy
     return textures
 
 
-def find_geometry_nodes(modifiers: bpy.types.bpy_prop_collection) -> [bpy.types.NodeTree]:
-    """ Find geometry nodes group from a modifier stack
+def find_geometry_nodes_dependencies(modifiers: bpy.types.bpy_prop_collection) -> [bpy.types.NodeTree]:
+    """ Find geometry nodes dependencies from a modifier stack
 
         :arg modifiers: modifiers collection
         :type modifiers: bpy.types.bpy_prop_collection
         :return: list of bpy.types.NodeTree pointers
     """
-    nodes_groups = []
-    for item in modifiers:
-        if item.type == 'NODES' and item.node_group:
-            nodes_groups.append(item.node_group)
+    dependencies = []
+    for mod in modifiers:
+        if mod.type == 'NODES' and mod.node_group:
+            dependencies.append(mod.node_group)
+            # for inpt in get_node_group_inputs(mod.node_group):
+            #     parameter = mod.get(inpt.identifier)
+            #     if parameter and isinstance(parameter, bpy.types.ID):
+            #         dependencies.append(parameter)
+
+    return dependencies
+
 
-    return nodes_groups
 
 def dump_vertex_groups(src_object: bpy.types.Object) -> dict:
     """ Dump object's vertex groups
@@ -219,119 +292,128 @@ def load_vertex_groups(dumped_vertex_groups: dict, target_object: bpy.types.Obje
         for index, weight in vg['vertices']:
             vertex_group.add([index], weight, 'REPLACE')
 
-class BlObject(BlDatablock):
+
+class BlObject(ReplicatedDatablock):
     bl_id = "objects"
-    bl_class = bpy.types.Object
     bl_check_common = False
     bl_icon = 'OBJECT_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
-        instance = None
+    is_root = False
 
-        if self.is_library:
-            with bpy.data.libraries.load(filepath=bpy.data.libraries[self.data['library']].filepath, link=True) as (sourceData, targetData):
-                targetData.objects = [
-                    name for name in sourceData.objects if name == self.data['name']]
-
-            instance = bpy.data.objects[self.data['name']]
-            instance.uuid = self.uuid
-            return instance
+    @staticmethod
+    def construct(data: dict) -> bpy.types.Object:
+        datablock = None
 
         # TODO: refactoring
         object_name = data.get("name")
         data_uuid = data.get("data_uuid")
         data_id = data.get("data")
-
+        object_uuid = data.get('uuid')
         object_data = get_datablock_from_uuid(
             data_uuid,
             find_data_from_name(data_id),
             ignore=['images'])  # TODO: use resolve_from_id
 
         if object_data is None and data_uuid:
-            raise Exception(f"Fail to load object {data['name']}({self.uuid})")
+            raise Exception(f"Fail to load object {data['name']}({object_uuid})")
 
-        instance = bpy.data.objects.new(object_name, object_data)
-        instance.uuid = self.uuid
+        datablock = bpy.data.objects.new(object_name, object_data)
+        datablock.uuid = object_uuid
 
-        return instance
+        return datablock
+
+    @staticmethod
+    def load(data: dict, datablock: bpy.types.Object):
+        data = datablock.data
+        load_animation_data(data, datablock)
 
-    def _load_implementation(self, data, target):
         loader = Loader()
 
         data_uuid = data.get("data_uuid")
         data_id = data.get("data")
 
-        if target.data and (target.data.name != data_id):
-            target.data = get_datablock_from_uuid(
+        if datablock.data and (datablock.data.name != data_id):
+            datablock.data = get_datablock_from_uuid(
                 data_uuid, find_data_from_name(data_id), ignore=['images'])
 
         # vertex groups
         vertex_groups = data.get('vertex_groups', None)
         if vertex_groups:
-            load_vertex_groups(vertex_groups, target)
+            load_vertex_groups(vertex_groups, datablock)
 
-        object_data = target.data
+        object_data = datablock.data
 
         # SHAPE KEYS
         if 'shape_keys' in data:
-            target.shape_key_clear()
+            datablock.shape_key_clear()
 
             # Create keys and load vertices coords
             for key_block in data['shape_keys']['key_blocks']:
                 key_data = data['shape_keys']['key_blocks'][key_block]
-                target.shape_key_add(name=key_block)
+                datablock.shape_key_add(name=key_block)
 
                 loader.load(
-                    target.data.shape_keys.key_blocks[key_block], key_data)
+                    datablock.data.shape_keys.key_blocks[key_block], key_data)
                 for vert in key_data['data']:
-                    target.data.shape_keys.key_blocks[key_block].data[vert].co = key_data['data'][vert]['co']
+                    datablock.data.shape_keys.key_blocks[key_block].data[vert].co = key_data['data'][vert]['co']
 
             # Load relative key after all
             for key_block in data['shape_keys']['key_blocks']:
                 reference = data['shape_keys']['key_blocks'][key_block]['relative_key']
 
-                target.data.shape_keys.key_blocks[key_block].relative_key = target.data.shape_keys.key_blocks[reference]
+                datablock.data.shape_keys.key_blocks[key_block].relative_key = datablock.data.shape_keys.key_blocks[reference]
 
         # Load transformation data
-        loader.load(target, data)
+        loader.load(datablock, data)
 
+        #  Object display fields
         if 'display' in data:
-            loader.load(target.display, data['display'])
+            loader.load(datablock.display, data['display'])
+
+        #  Parenting
+        parent_id = data.get('parent_uid')
+        if parent_id:
+            parent = get_datablock_from_uuid(parent_id[0], bpy.data.objects[parent_id[1]])
+            # Avoid reloading
+            if datablock.parent != parent and parent is not None:
+                datablock.parent = parent
+        elif datablock.parent:
+            datablock.parent = None
 
         # Pose
         if 'pose' in data:
-            if not target.pose:
+            if not datablock.pose:
                 raise Exception('No pose data yet (Fixed in a near futur)')
             # Bone groups
             for bg_name in data['pose']['bone_groups']:
                 bg_data = data['pose']['bone_groups'].get(bg_name)
-                bg_target = target.pose.bone_groups.get(bg_name)
+                bg_datablock = datablock.pose.bone_groups.get(bg_name)
 
-                if not bg_target:
-                    bg_target = target.pose.bone_groups.new(name=bg_name)
+                if not bg_datablock:
+                    bg_datablock = datablock.pose.bone_groups.new(name=bg_name)
 
-                loader.load(bg_target, bg_data)
-                # target.pose.bone_groups.get
+                loader.load(bg_datablock, bg_data)
+                # datablock.pose.bone_groups.get
 
             # Bones
             for bone in data['pose']['bones']:
-                target_bone = target.pose.bones.get(bone)
+                datablock_bone = datablock.pose.bones.get(bone)
                 bone_data = data['pose']['bones'].get(bone)
 
                 if 'constraints' in bone_data.keys():
-                    loader.load(target_bone, bone_data['constraints'])
+                    loader.load(datablock_bone, bone_data['constraints'])
 
-                load_pose(target_bone, bone_data)
+                load_pose(datablock_bone, bone_data)
 
                 if 'bone_index' in bone_data.keys():
-                    target_bone.bone_group = target.pose.bone_group[bone_data['bone_group_index']]
+                    datablock_bone.bone_group = datablock.pose.bone_group[bone_data['bone_group_index']]
 
         # TODO: find another way...
-        if target.empty_display_type == "IMAGE":
+        if datablock.empty_display_type == "IMAGE":
             img_uuid = data.get('data_uuid')
-            if target.data is None and img_uuid:
-                target.data = get_datablock_from_uuid(img_uuid, None)
+            if datablock.data is None and img_uuid:
+                datablock.data = get_datablock_from_uuid(img_uuid, None)
 
         if hasattr(object_data, 'skin_vertices') \
                 and object_data.skin_vertices\
@@ -342,31 +424,66 @@ class BlObject(BlDatablock):
                     skin_data.data,
                     SKIN_DATA)
 
-        if hasattr(target, 'cycles_visibility') \
-            and 'cycles_visibility' in data:
-            loader.load(target.cycles_visibility, data['cycles_visibility'])
+        if hasattr(datablock, 'cycles_visibility') \
+                and 'cycles_visibility' in data:
+            loader.load(datablock.cycles_visibility, data['cycles_visibility'])
 
         # TODO: handle geometry nodes input from dump_anything
-        if hasattr(target, 'modifiers'):
-            nodes_modifiers = [mod for mod in target.modifiers if mod.type == 'NODES']
+        if hasattr(datablock, 'modifiers'):
+            nodes_modifiers = [
+                mod for mod in datablock.modifiers if mod.type == 'NODES']
             for modifier in nodes_modifiers:
-                load_modifier_geometry_node_inputs(data['modifiers'][modifier.name], modifier)
+                load_modifier_geometry_node_inputs(
+                    data['modifiers'][modifier.name], modifier)
 
-    def _dump_implementation(self, data, instance=None):
-        assert(instance)
+            particles_modifiers = [
+                mod for mod in datablock.modifiers if mod.type == 'PARTICLE_SYSTEM']
 
-        if _is_editmode(instance):
+            for mod in particles_modifiers:
+                default =  mod.particle_system.settings
+                dumped_particles = data['modifiers'][mod.name]['particle_system']
+                loader.load(mod.particle_system, dumped_particles)
+
+                settings = get_datablock_from_uuid(dumped_particles['settings_uuid'], None)
+                if settings:
+                    mod.particle_system.settings = settings
+                    # Hack to remove the default generated particle settings
+                    if not default.uuid:
+                        bpy.data.particles.remove(default)
+
+            phys_modifiers = [
+                mod for mod in datablock.modifiers if mod.type in ['SOFT_BODY', 'CLOTH']]
+            
+            for mod in phys_modifiers:
+                loader.load(mod.settings, data['modifiers'][mod.name]['settings'])
+
+        # PHYSICS
+        load_physics(data, datablock)
+
+        transform = data.get('transforms', None)
+        if transform:
+            datablock.matrix_parent_inverse = mathutils.Matrix(
+                transform['matrix_parent_inverse'])
+            datablock.matrix_basis = mathutils.Matrix(transform['matrix_basis'])
+            datablock.matrix_local = mathutils.Matrix(transform['matrix_local'])
+
+
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        assert(datablock)
+
+        if _is_editmode(datablock):
             if self.preferences.sync_flags.sync_during_editmode:
-                instance.update_from_editmode()
+                datablock.update_from_editmode()
             else:
                 raise ContextError("Object is in edit-mode.")
 
         dumper = Dumper()
         dumper.depth = 1
         dumper.include_filter = [
+            "uuid",
             "name",
             "rotation_mode",
-            "parent",
             "data",
             "library",
             "empty_display_type",
@@ -381,8 +498,6 @@ class BlObject(BlDatablock):
             "color",
             "instance_collection",
             "instance_type",
-            "location",
-            "scale",
             'lock_location',
             'lock_rotation',
             'lock_scale',
@@ -396,35 +511,58 @@ class BlObject(BlDatablock):
             'show_all_edges',
             'show_texture_space',
             'show_in_front',
-            'type',
-            'rotation_quaternion' if instance.rotation_mode == 'QUATERNION' else 'rotation_euler',
+            'type'
         ]
 
-        data = dumper.dump(instance)
+        data = dumper.dump(datablock)
 
+        dumper.include_filter = [
+            'matrix_parent_inverse',
+            'matrix_local',
+            'matrix_basis']
+        data['transforms'] = dumper.dump(datablock)
         dumper.include_filter = [
             'show_shadows',
         ]
-        data['display'] = dumper.dump(instance.display)
+        data['display'] = dumper.dump(datablock.display)
 
-        data['data_uuid'] = getattr(instance.data, 'uuid', None)
-        if self.is_library:
-            return data
+        data['data_uuid'] = getattr(datablock.data, 'uuid', None)
+
+        # PARENTING
+        if datablock.parent:
+            data['parent_uid'] = (datablock.parent.uuid, datablock.parent.name)
 
         # MODIFIERS
-        if hasattr(instance, 'modifiers'):
+        if hasattr(datablock, 'modifiers'):
             data["modifiers"] = {}
-            modifiers = getattr(instance, 'modifiers', None)
+            modifiers = getattr(datablock, 'modifiers', None)
             if modifiers:
                 dumper.include_filter = None
                 dumper.depth = 1
+                dumper.exclude_filter = ['is_active']
                 for index, modifier in enumerate(modifiers):
-                    data["modifiers"][modifier.name] = dumper.dump(modifier)
+                    dumped_modifier = dumper.dump(modifier)
                     # hack to dump geometry nodes inputs
                     if modifier.type == 'NODES':
-                        dumped_inputs = dump_modifier_geometry_node_inputs(modifier)
-                        data["modifiers"][modifier.name]['inputs'] = dumped_inputs
-        gp_modifiers = getattr(instance, 'grease_pencil_modifiers', None)
+                        dumped_inputs = dump_modifier_geometry_node_inputs(
+                            modifier)
+                        dumped_modifier['inputs'] = dumped_inputs
+
+                    elif modifier.type == 'PARTICLE_SYSTEM':
+                        dumper.exclude_filter = [
+                            "is_edited",
+                            "is_editable",
+                            "is_global_hair"
+                        ]
+                        dumped_modifier['particle_system'] = dumper.dump(modifier.particle_system)
+                        dumped_modifier['particle_system']['settings_uuid'] = modifier.particle_system.settings.uuid
+
+                    elif modifier.type in ['SOFT_BODY', 'CLOTH']:
+                        dumped_modifier['settings'] = dumper.dump(modifier.settings)
+
+                    data["modifiers"][modifier.name] = dumped_modifier
+
+        gp_modifiers = getattr(datablock, 'grease_pencil_modifiers', None)
 
         if gp_modifiers:
             dumper.include_filter = None
@@ -445,17 +583,18 @@ class BlObject(BlDatablock):
                         'location']
                     gp_mod_data['curve'] = curve_dumper.dump(modifier.curve)
 
+
         # CONSTRAINTS
-        if hasattr(instance, 'constraints'):
+        if hasattr(datablock, 'constraints'):
             dumper.include_filter = None
             dumper.depth = 3
-            data["constraints"] = dumper.dump(instance.constraints)
+            data["constraints"] = dumper.dump(datablock.constraints)
 
         # POSE
-        if hasattr(instance, 'pose') and instance.pose:
+        if hasattr(datablock, 'pose') and datablock.pose:
             # BONES
             bones = {}
-            for bone in instance.pose.bones:
+            for bone in datablock.pose.bones:
                 bones[bone.name] = {}
                 dumper.depth = 1
                 rotation = 'rotation_quaternion' if bone.rotation_mode == 'QUATERNION' else 'rotation_euler'
@@ -480,7 +619,7 @@ class BlObject(BlDatablock):
 
             # GROUPS
             bone_groups = {}
-            for group in instance.pose.bone_groups:
+            for group in datablock.pose.bone_groups:
                 dumper.depth = 3
                 dumper.include_filter = [
                     'name',
@@ -489,13 +628,12 @@ class BlObject(BlDatablock):
                 bone_groups[group.name] = dumper.dump(group)
             data['pose']['bone_groups'] = bone_groups
 
-
         # VERTEx GROUP
-        if len(instance.vertex_groups) > 0:
-            data['vertex_groups'] = dump_vertex_groups(instance)
+        if len(datablock.vertex_groups) > 0:
+            data['vertex_groups'] = dump_vertex_groups(datablock)
 
         #  SHAPE KEYS
-        object_data = instance.data
+        object_data = datablock.data
         if hasattr(object_data, 'shape_keys') and object_data.shape_keys:
             dumper = Dumper()
             dumper.depth = 2
@@ -526,11 +664,12 @@ class BlObject(BlDatablock):
         if hasattr(object_data, 'skin_vertices') and object_data.skin_vertices:
             skin_vertices = list()
             for skin_data in object_data.skin_vertices:
-                skin_vertices.append(np_dump_collection(skin_data.data, SKIN_DATA))
+                skin_vertices.append(
+                    np_dump_collection(skin_data.data, SKIN_DATA))
             data['skin_vertices'] = skin_vertices
 
         # CYCLE SETTINGS
-        if hasattr(instance, 'cycles_visibility'):
+        if hasattr(datablock, 'cycles_visibility'):
             dumper.include_filter = [
                 'camera',
                 'diffuse',
@@ -539,28 +678,40 @@ class BlObject(BlDatablock):
                 'scatter',
                 'shadow',
             ]
-            data['cycles_visibility'] = dumper.dump(instance.cycles_visibility)
+            data['cycles_visibility'] = dumper.dump(
+                datablock.cycles_visibility)
+
+        # PHYSICS
+        data.update(dump_physics(instance))
 
         return data
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: bpy.types.Object) -> list:
         deps = []
 
         # Avoid Empty case
-        if self.instance.data:
-            deps.append(self.instance.data)
-        if self.instance.parent :
-            deps.append(self.instance.parent)
+        if datablock.data:
+            deps.append(datablock.data)
 
-        if self.is_library:
-            deps.append(self.instance.library)
+        # Particle systems
+        for particle_slot in datablock.particle_systems:
+            deps.append(particle_slot.settings)
 
-        if self.instance.instance_type == 'COLLECTION':
+        if datablock.parent:
+            deps.append(datablock.parent)
+
+        if datablock.instance_type == 'COLLECTION':
             # TODO: uuid based
-            deps.append(self.instance.instance_collection)
+            deps.append(datablock.instance_collection)
 
-        if self.instance.modifiers:
-            deps.extend(find_textures_dependencies(self.instance.modifiers))
-            deps.extend(find_geometry_nodes(self.instance.modifiers))
+        deps.extend(resolve_animation_dependencies(datablock))
+
+        if datablock.modifiers:
+            deps.extend(find_textures_dependencies(datablock.modifiers))
+            deps.extend(find_geometry_nodes_dependencies(datablock.modifiers))
 
         return deps
+
+_type = bpy.types.Object
+_class = BlObject

multi_user/io_bpy/bl_particle.py

@@ -0,0 +1,90 @@
+import bpy
+import mathutils
+
+from . import dump_anything
+from .bl_datablock import BlDatablock, get_datablock_from_uuid
+
+
+def dump_textures_slots(texture_slots: bpy.types.bpy_prop_collection) -> list:
+    """ Dump every texture slot collection as the form:
+        [(index, slot_texture_uuid, slot_texture_name), (), ...]
+    """
+    dumped_slots = []
+    for index, slot in enumerate(texture_slots):
+        if slot and slot.texture:
+            dumped_slots.append((index, slot.texture.uuid, slot.texture.name))
+
+    return dumped_slots
+
+
+def load_texture_slots(dumped_slots: list, target_slots: bpy.types.bpy_prop_collection):
+    """
+    """
+    for index, slot in enumerate(target_slots):
+        if slot:
+            target_slots.clear(index)
+
+    for index, slot_uuid, slot_name in dumped_slots:
+        target_slots.create(index).texture = get_datablock_from_uuid(
+            slot_uuid, slot_name
+        )
+
+IGNORED_ATTR = [
+    "is_embedded_data",
+    "is_evaluated",
+    "is_fluid",
+    "is_library_indirect",
+    "users"
+]
+
+class BlParticle(BlDatablock):
+    bl_id = "particles"
+    bl_class = bpy.types.ParticleSettings
+    bl_icon = "PARTICLES"
+    bl_check_common = False
+    bl_reload_parent = False
+
+    def _construct(self, data):
+        instance = bpy.data.particles.new(data["name"])
+        instance.uuid = self.uuid
+        return instance
+
+    def _load_implementation(self, data, target):
+        dump_anything.load(target, data)
+
+        dump_anything.load(target.effector_weights, data["effector_weights"])
+
+        # Force field
+        force_field_1 = data.get("force_field_1", None)
+        if force_field_1:
+            dump_anything.load(target.force_field_1, force_field_1)
+
+        force_field_2 = data.get("force_field_2", None)
+        if force_field_2:
+            dump_anything.load(target.force_field_2, force_field_2)
+
+        # Texture slots
+        load_texture_slots(data["texture_slots"], target.texture_slots)
+
+    def _dump_implementation(self, data, instance=None):
+        assert instance
+
+        dumper = dump_anything.Dumper()
+        dumper.depth = 1
+        dumper.exclude_filter = IGNORED_ATTR
+        data = dumper.dump(instance)
+
+        # Particle effectors
+        data["effector_weights"] = dumper.dump(instance.effector_weights)
+        if instance.force_field_1:
+            data["force_field_1"] = dumper.dump(instance.force_field_1)
+        if instance.force_field_2:
+            data["force_field_2"] = dumper.dump(instance.force_field_2)
+
+        # Texture slots
+        data["texture_slots"] = dump_textures_slots(instance.texture_slots)
+
+        return data
+
+    def _resolve_deps_implementation(self):
+        return [t.texture for t in self.instance.texture_slots if t and t.texture]

multi_user/io_bpy/bl_scene.py

@@ -23,14 +23,21 @@ import bpy
 import mathutils
 from deepdiff import DeepDiff
 from replication.constants import DIFF_JSON, MODIFIED
+from replication.protocol import ReplicatedDatablock
+from replication.objects import Node
 
 from ..utils import flush_history
 from .bl_collection import (dump_collection_children, dump_collection_objects,
                             load_collection_childrens, load_collection_objects,
                             resolve_collection_dependencies)
-from .bl_datablock import BlDatablock
+from .bl_action import (load_animation_data,
+                        dump_animation_data,
+                        resolve_animation_dependencies)
+from .bl_datablock import stamp_uuid
+
 from .bl_file import get_filepath
 from .dump_anything import Dumper, Loader
+from ..preferences import get_preferences
 
 RENDER_SETTINGS = [
     'dither_intensity',
@@ -286,12 +293,10 @@ def dump_sequence(sequence: bpy.types.Sequence) -> dict:
     dumper.depth = 1
     data = dumper.dump(sequence)
 
-
     # TODO: Support multiple images
     if sequence.type == 'IMAGE':
         data['filenames'] = [e.filename for e in sequence.elements]
 
-
     # Effect strip inputs
     input_count = getattr(sequence, 'input_count', None)
     if input_count:
@@ -321,111 +326,116 @@ def load_sequence(sequence_data: dict, sequence_editor: bpy.types.SequenceEditor
         if strip_type == 'SCENE':
             strip_scene = bpy.data.scenes.get(sequence_data.get('scene'))
             sequence = sequence_editor.sequences.new_scene(strip_name,
-                                                        strip_scene,
-                                                        strip_channel,
-                                                        strip_frame_start)
+                                                           strip_scene,
+                                                           strip_channel,
+                                                           strip_frame_start)
         elif strip_type == 'MOVIE':
             filepath = get_filepath(Path(sequence_data['filepath']).name)
             sequence = sequence_editor.sequences.new_movie(strip_name,
-                                                        filepath,
-                                                        strip_channel,
-                                                        strip_frame_start)
+                                                           filepath,
+                                                           strip_channel,
+                                                           strip_frame_start)
         elif strip_type == 'SOUND':
             filepath = bpy.data.sounds[sequence_data['sound']].filepath
             sequence = sequence_editor.sequences.new_sound(strip_name,
-                                                        filepath,
-                                                        strip_channel,
-                                                        strip_frame_start)
+                                                           filepath,
+                                                           strip_channel,
+                                                           strip_frame_start)
         elif strip_type == 'IMAGE':
             images_name = sequence_data.get('filenames')
             filepath = get_filepath(images_name[0])
             sequence = sequence_editor.sequences.new_image(strip_name,
-                                                        filepath,
-                                                        strip_channel,
-                                                        strip_frame_start)
+                                                           filepath,
+                                                           strip_channel,
+                                                           strip_frame_start)
             # load other images
-            if len(images_name)>1:
-                for img_idx in range(1,len(images_name)):
+            if len(images_name) > 1:
+                for img_idx in range(1, len(images_name)):
                     sequence.elements.append((images_name[img_idx]))
         else:
             seq = {}
 
             for i in range(sequence_data['input_count']):
-                seq[f"seq{i+1}"] = sequence_editor.sequences_all.get(sequence_data.get(f"input_{i+1}", None))
+                seq[f"seq{i+1}"] = sequence_editor.sequences_all.get(
+                    sequence_data.get(f"input_{i+1}", None))
 
             sequence = sequence_editor.sequences.new_effect(name=strip_name,
-                                                        type=strip_type,
-                                                        channel=strip_channel,
-                                                        frame_start=strip_frame_start,
-                                                        frame_end=sequence_data['frame_final_end'],
-                                                        **seq)
+                                                            type=strip_type,
+                                                            channel=strip_channel,
+                                                            frame_start=strip_frame_start,
+                                                            frame_end=sequence_data['frame_final_end'],
+                                                            **seq)
 
     loader = Loader()
-    # TODO: Support filepath updates 
-    loader.exclure_filter = ['filepath', 'sound', 'filenames','fps']
+    # TODO: Support filepath updates
+    loader.exclure_filter = ['filepath', 'sound', 'filenames', 'fps']
     loader.load(sequence, sequence_data)
     sequence.select = False
 
 
-class BlScene(BlDatablock):
+class BlScene(ReplicatedDatablock):
+    is_root = True
+
     bl_id = "scenes"
     bl_class = bpy.types.Scene
     bl_check_common = True
     bl_icon = 'SCENE_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
-        instance = bpy.data.scenes.new(data["name"])
-        instance.uuid = self.uuid
+    @staticmethod
+    def construct(data: dict) -> object:
+        datablock = bpy.data.scenes.new(data["name"])
+        datablock.uuid = data.get("uuid")
 
-        return instance
+        return datablock
 
-    def _load_implementation(self, data, target):
+    @staticmethod
+    def load(data: dict, datablock: object):
         # Load other meshes metadata
         loader = Loader()
-        loader.load(target, data)
+        loader.load(datablock, data)
 
         # Load master collection
         load_collection_objects(
-            data['collection']['objects'], target.collection)
+            data['collection']['objects'], datablock.collection)
         load_collection_childrens(
-            data['collection']['children'], target.collection)
+            data['collection']['children'], datablock.collection)
 
         if 'world' in data.keys():
-            target.world = bpy.data.worlds[data['world']]
+            datablock.world = bpy.data.worlds[data['world']]
 
         # Annotation
         if 'grease_pencil' in data.keys():
-            target.grease_pencil = bpy.data.grease_pencils[data['grease_pencil']]
+            datablock.grease_pencil = bpy.data.grease_pencils[data['grease_pencil']]
 
-        if self.preferences.sync_flags.sync_render_settings:
+        if get_preferences().sync_flags.sync_render_settings:
             if 'eevee' in data.keys():
-                loader.load(target.eevee, data['eevee'])
+                loader.load(datablock.eevee, data['eevee'])
 
             if 'cycles' in data.keys():
-                loader.load(target.cycles, data['cycles'])
+                loader.load(datablock.cycles, data['cycles'])
 
             if 'render' in data.keys():
-                loader.load(target.render, data['render'])
+                loader.load(datablock.render, data['render'])
 
             if 'view_settings' in data.keys():
-                loader.load(target.view_settings, data['view_settings'])
-                if target.view_settings.use_curve_mapping and \
+                loader.load(datablock.view_settings, data['view_settings'])
+                if datablock.view_settings.use_curve_mapping and \
                         'curve_mapping' in data['view_settings']:
                     # TODO: change this ugly fix
-                    target.view_settings.curve_mapping.white_level = data[
+                    datablock.view_settings.curve_mapping.white_level = data[
                         'view_settings']['curve_mapping']['white_level']
-                    target.view_settings.curve_mapping.black_level = data[
+                    datablock.view_settings.curve_mapping.black_level = data[
                         'view_settings']['curve_mapping']['black_level']
-                    target.view_settings.curve_mapping.update()
+                    datablock.view_settings.curve_mapping.update()
 
         # Sequencer
         sequences = data.get('sequences')
-        
+
         if sequences:
             # Create sequencer data
-            target.sequence_editor_create()
-            vse = target.sequence_editor
+            datablock.sequence_editor_create()
+            vse = datablock.sequence_editor
 
             # Clear removed sequences
             for seq in vse.sequences_all:
@@ -435,15 +445,16 @@ class BlScene(BlDatablock):
             for seq_name, seq_data in sequences.items():
                 load_sequence(seq_data, vse)
         # If the sequence is no longer used, clear it
-        elif target.sequence_editor and not sequences:
-            target.sequence_editor_clear()
+        elif datablock.sequence_editor and not sequences:
+            datablock.sequence_editor_clear()
 
         # FIXME: Find a better way after the replication big refacotoring
         # Keep other user from deleting collection object by flushing their history
         flush_history()
 
-    def _dump_implementation(self, data, instance=None):
-        assert(instance)
+    @staticmethod
+    def dump(datablock: object) -> dict:
+        stamp_uuid(datablock)
 
         # Metadata
         scene_dumper = Dumper()
@@ -456,41 +467,43 @@ class BlScene(BlDatablock):
             'frame_start',
             'frame_end',
             'frame_step',
+            'uuid'
         ]
-        if self.preferences.sync_flags.sync_active_camera:
+        if get_preferences().sync_flags.sync_active_camera:
             scene_dumper.include_filter.append('camera')
 
-        data.update(scene_dumper.dump(instance))
+        data = scene_dumper.dump(datablock)
+        dump_animation_data(datablock, data)
 
         # Master collection
         data['collection'] = {}
         data['collection']['children'] = dump_collection_children(
-            instance.collection)
+            datablock.collection)
         data['collection']['objects'] = dump_collection_objects(
-            instance.collection)
+            datablock.collection)
 
         scene_dumper.depth = 1
         scene_dumper.include_filter = None
 
         # Render settings
-        if self.preferences.sync_flags.sync_render_settings:
+        if get_preferences().sync_flags.sync_render_settings:
             scene_dumper.include_filter = RENDER_SETTINGS
 
-            data['render'] = scene_dumper.dump(instance.render)
+            data['render'] = scene_dumper.dump(datablock.render)
 
-            if instance.render.engine == 'BLENDER_EEVEE':
+            if datablock.render.engine == 'BLENDER_EEVEE':
                 scene_dumper.include_filter = EVEE_SETTINGS
-                data['eevee'] = scene_dumper.dump(instance.eevee)
-            elif instance.render.engine == 'CYCLES':
+                data['eevee'] = scene_dumper.dump(datablock.eevee)
+            elif datablock.render.engine == 'CYCLES':
                 scene_dumper.include_filter = CYCLES_SETTINGS
-                data['cycles'] = scene_dumper.dump(instance.cycles)
+                data['cycles'] = scene_dumper.dump(datablock.cycles)
 
             scene_dumper.include_filter = VIEW_SETTINGS
-            data['view_settings'] = scene_dumper.dump(instance.view_settings)
+            data['view_settings'] = scene_dumper.dump(datablock.view_settings)
 
-            if instance.view_settings.use_curve_mapping:
+            if datablock.view_settings.use_curve_mapping:
                 data['view_settings']['curve_mapping'] = scene_dumper.dump(
-                    instance.view_settings.curve_mapping)
+                    datablock.view_settings.curve_mapping)
                 scene_dumper.depth = 5
                 scene_dumper.include_filter = [
                     'curves',
@@ -498,35 +511,35 @@ class BlScene(BlDatablock):
                     'location',
                 ]
                 data['view_settings']['curve_mapping']['curves'] = scene_dumper.dump(
-                    instance.view_settings.curve_mapping.curves)
+                    datablock.view_settings.curve_mapping.curves)
 
         # Sequence
-        vse = instance.sequence_editor
+        vse = datablock.sequence_editor
         if vse:
             dumped_sequences = {}
             for seq in vse.sequences_all:
                 dumped_sequences[seq.name] = dump_sequence(seq)
             data['sequences'] = dumped_sequences
 
-
         return data
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
         # Master Collection
-        deps.extend(resolve_collection_dependencies(self.instance.collection))
+        deps.extend(resolve_collection_dependencies(datablock.collection))
 
         # world
-        if self.instance.world:
-            deps.append(self.instance.world)
+        if datablock.world:
+            deps.append(datablock.world)
 
         # annotations
-        if self.instance.grease_pencil:
-            deps.append(self.instance.grease_pencil)
+        if datablock.grease_pencil:
+            deps.append(datablock.grease_pencil)
 
         # Sequences
-        vse = self.instance.sequence_editor
+        vse = datablock.sequence_editor
         if vse:
             for sequence in vse.sequences_all:
                 if sequence.type == 'MOVIE' and sequence.filepath:
@@ -537,20 +550,23 @@ class BlScene(BlDatablock):
                     for elem in sequence.elements:
                         sequence.append(
                             Path(bpy.path.abspath(sequence.directory),
-                            elem.filename))
+                                 elem.filename))
 
         return deps
 
     def diff(self):
         exclude_path = []
 
-        if not self.preferences.sync_flags.sync_render_settings:
+        if not get_preferences().sync_flags.sync_render_settings:
             exclude_path.append("root['eevee']")
             exclude_path.append("root['cycles']")
             exclude_path.append("root['view_settings']")
             exclude_path.append("root['render']")
 
-        if not self.preferences.sync_flags.sync_active_camera:
+        if not get_preferences().sync_flags.sync_active_camera:
             exclude_path.append("root['camera']")
 
-        return DeepDiff(self.data, self._dump(instance=self.instance), exclude_paths=exclude_path)
+        return DeepDiff(self.data, self._dump(datablock=self.datablock), exclude_paths=exclude_path)
+
+_type = bpy.types.Scene
+_class = BlScene

multi_user/io_bpy/bl_sound.py

@@ -34,19 +34,19 @@ class BlSound(BlDatablock):
     bl_icon = 'SOUND'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         filename = data.get('filename')
 
         return bpy.data.sounds.load(get_filepath(filename))
 
-    def _load(self, data, target):
+    def load(self, data, target):
         loader = Loader()
         loader.load(target, data)
 
     def diff(self):
         return False
 
-    def _dump(self, instance=None):
+    def dump(self, instance=None):
         filename = Path(instance.filepath).name
 
         if not filename:
@@ -57,11 +57,12 @@ class BlSound(BlDatablock):
             'name': instance.name
         }
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
-        if self.instance.filepath and self.instance.filepath != '<builtin>':
-            ensure_unpacked(self.instance)
+        if datablock.filepath and datablock.filepath != '<builtin>':
+            ensure_unpacked(datablock)
             
-            deps.append(Path(bpy.path.abspath(self.instance.filepath)))
+            deps.append(Path(bpy.path.abspath(datablock.filepath)))
 
         return deps

multi_user/io_bpy/bl_speaker.py

@@ -30,14 +30,14 @@ class BlSpeaker(BlDatablock):
     bl_icon = 'SPEAKER'
     bl_reload_parent = False
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.speakers.new(data["name"])
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
 
         dumper = Dumper()
@@ -60,11 +60,11 @@ class BlSpeaker(BlDatablock):
 
         return dumper.dump(instance)
 
-    def _resolve_deps_implementation(self):
-        # TODO: resolve material
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        sound = self.instance.sound
+        sound = datablock.sound
 
         if sound:
             deps.append(sound)

multi_user/io_bpy/bl_texture.py

@@ -30,14 +30,14 @@ class BlTexture(BlDatablock):
     bl_icon = 'TEXTURE'
     bl_reload_parent = False
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.textures.new(data["name"], data["type"])
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
 
         dumper = Dumper()
@@ -61,11 +61,11 @@ class BlTexture(BlDatablock):
 
         return data
 
-    def _resolve_deps_implementation(self):
-        # TODO: resolve material
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        image = getattr(self.instance,"image", None)
+        image = getattr(datablock,"image", None)
 
         if image:
             deps.append(image)

multi_user/io_bpy/bl_volume.py

@@ -31,7 +31,7 @@ class BlVolume(BlDatablock):
     bl_icon = 'VOLUME_DATA'
     bl_reload_parent = False
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
         loader.load(target.display, data['display'])
@@ -41,10 +41,10 @@ class BlVolume(BlDatablock):
         if src_materials:
             load_materials_slots(src_materials, target.materials)
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.volumes.new(data["name"])
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
 
         dumper = Dumper()
@@ -69,15 +69,15 @@ class BlVolume(BlDatablock):
 
         return data
 
-    def _resolve_deps_implementation(self):
-        # TODO: resolve material
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        external_vdb = Path(bpy.path.abspath(self.instance.filepath))
+        external_vdb = Path(bpy.path.abspath(datablock.filepath))
         if external_vdb.exists() and not external_vdb.is_dir():
             deps.append(external_vdb)
 
-        for material in self.instance.materials:
+        for material in datablock.materials:
             if material:
                 deps.append(material)
 

multi_user/io_bpy/bl_world.py

@@ -33,10 +33,10 @@ class BlWorld(BlDatablock):
     bl_icon = 'WORLD_DATA'
     bl_reload_parent = False
 
-    def _construct(self, data):
+    def construct(data: dict) -> object:
         return bpy.data.worlds.new(data["name"])
 
-    def _load_implementation(self, data, target):
+    def load(data: dict, datablock: object):
         loader = Loader()
         loader.load(target, data)
 
@@ -46,7 +46,7 @@ class BlWorld(BlDatablock):
 
             load_node_tree(data['node_tree'], target.node_tree)
 
-    def _dump_implementation(self, data, instance=None):
+    def dump(datablock: object) -> dict:
         assert(instance)
 
         world_dumper = Dumper()
@@ -62,11 +62,11 @@ class BlWorld(BlDatablock):
 
         return data
 
-    def _resolve_deps_implementation(self):
+    @staticmethod
+    def resolve_deps(datablock: object) -> [object]:
         deps = []
 
-        if self.instance.use_nodes:
-            deps.extend(get_node_tree_dependencies(self.instance.node_tree))
-        if self.is_library:
-            deps.append(self.instance.library)
+        if datablock.use_nodes:
+            deps.extend(get_node_tree_dependencies(datablock.node_tree))
+
         return deps

multi_user/io_bpy/dump_anything.py

@@ -610,6 +610,8 @@ class Loader:
             instance.write(bpy.data.fonts.get(dump))
         elif isinstance(rna_property_type, T.Sound):
             instance.write(bpy.data.sounds.get(dump))
+        # elif isinstance(rna_property_type, T.ParticleSettings):
+        #     instance.write(bpy.data.particles.get(dump))
 
     def _load_matrix(self, matrix, dump):
         matrix.write(mathutils.Matrix(dump))

multi_user/operators.py

@@ -32,6 +32,7 @@ from operator import itemgetter
 from pathlib import Path
 from queue import Queue
 from time import gmtime, strftime
+import traceback
 
 try:
     import _pickle as pickle
@@ -44,11 +45,13 @@ from bpy.app.handlers import persistent
 from bpy_extras.io_utils import ExportHelper, ImportHelper
 from replication.constants import (COMMITED, FETCHED, RP_COMMON, STATE_ACTIVE,
                                    STATE_INITIAL, STATE_SYNCING, UP)
-from replication.data import ReplicatedDataFactory
-from replication.exception import NonAuthorizedOperationError, ContextError
+from replication.protocol import DataTranslationProtocol
+from replication.exception import ContextError, NonAuthorizedOperationError
 from replication.interface import session
+from replication import porcelain
+from replication.repository import Repository
 
-from . import bl_types, environment, timers, ui, utils
+from . import io_bpy, environment, timers, ui, utils
 from .presence import SessionStatusWidget, renderer, view3d_find
 from .timers import registry
 
@@ -56,6 +59,7 @@ background_execution_queue = Queue()
 deleyables = []
 stop_modal_executor = False
 
+
 def session_callback(name):
     """ Session callback wrapper
 
@@ -80,17 +84,17 @@ def initialize_session():
 
     # Step 1: Constrect nodes
     logging.info("Constructing nodes")
-    for node in session._graph.list_ordered():
-        node_ref = session.get(uuid=node)
+    for node in session.repository.list_ordered():
+        node_ref = session.repository.get_node(node)
         if node_ref is None:
             logging.error(f"Can't construct node {node}")
         elif node_ref.state == FETCHED:
             node_ref.resolve()
-    
+
     # Step 2: Load nodes
     logging.info("Loading nodes")
-    for node in session._graph.list_ordered():
-        node_ref = session.get(uuid=node)
+    for node in session.repository.list_ordered():
+        node_ref = session.repository.get_node(node)
 
         if node_ref is None:
             logging.error(f"Can't load node {node}")
@@ -137,7 +141,8 @@ def on_connection_end(reason="none"):
         if isinstance(handler, logging.FileHandler):
             logger.removeHandler(handler)
     if reason != "user":
-        bpy.ops.session.notify('INVOKE_DEFAULT', message=f"Disconnected from session. Reason: {reason}. ")
+        bpy.ops.session.notify(
+            'INVOKE_DEFAULT', message=f"Disconnected from session. Reason: {reason}. ")
 
 
 # OPERATORS
@@ -186,110 +191,77 @@ class SessionStartOperator(bpy.types.Operator):
 
                 handler.setFormatter(formatter)
 
-        bpy_factory = ReplicatedDataFactory()
-        supported_bl_types = []
+        bpy_protocol = io_bpy.get_data_translation_protocol()
 
-        # init the factory with supported types
-        for type in bl_types.types_to_register():
-            type_module = getattr(bl_types, type)
-            name = [e.capitalize() for e in type.split('_')[1:]]
-            type_impl_name = 'Bl'+''.join(name)
-            type_module_class = getattr(type_module, type_impl_name)
-
-            supported_bl_types.append(type_module_class.bl_id)
-
-            if type_impl_name not in settings.supported_datablocks:
-                logging.info(f"{type_impl_name} not found, \
+        # Check if supported_datablocks are up to date before starting the
+        # the session
+        for impl in bpy_protocol.implementations.values():
+            if impl.__name__ not in settings.supported_datablocks:
+                logging.info(f"{impl.__name__} not found, \
                              regenerate type settings...")
                 settings.generate_supported_types()
 
-            type_local_config = settings.supported_datablocks[type_impl_name]
-
-            bpy_factory.register_type(
-                type_module_class.bl_class,
-                type_module_class,
-                check_common=type_module_class.bl_check_common)
-
-            deleyables.append(timers.ApplyTimer(timeout=settings.depsgraph_update_rate))
-
+        # Ensure blender 2.8 compatibility
         if bpy.app.version[1] >= 91:
             python_binary_path = sys.executable
         else:
             python_binary_path = bpy.app.binary_path_python
 
-        session.configure(
-            factory=bpy_factory,
-            python_path=python_binary_path,
-            external_update_handling=True)
-
-        # Host a session
+        # HOST
         if self.host:
             if settings.init_method == 'EMPTY':
                 utils.clean_scene()
 
-            runtime_settings.is_host = True
-            runtime_settings.internet_ip = environment.get_ip()
+            # Start the server locally
+            server = porcelain.serve(port=settings.port,
+                                    timeout=settings.connection_timeout,
+                                    admin_password=admin_pass,
+                                    log_directory=settings.cache_directory)
 
-            try:
-                for scene in bpy.data.scenes:
-                    session.add(scene)
+            # Init repository
+            repo = porcelain.init(bare=False,
+                                 data_protocol=bpy_protocol)
 
-                session.host(
-                    id=settings.username,
-                    port=settings.port,
-                    ipc_port=settings.ipc_port,
-                    timeout=settings.connection_timeout,
-                    password=admin_pass,
-                    cache_directory=settings.cache_directory,
-                    server_log_level=logging.getLevelName(
-                        logging.getLogger().level),
-                )
-            except Exception as e:
-                self.report({'ERROR'}, repr(e))
-                logging.error(f"Error: {e}")
-                import traceback
-                traceback.print_exc()
-        # Join a session
+            # Add the existing scenes
+            for scene in bpy.data.scenes:
+                porcelain.add(repo, scene)
+
+            porcelain.remote_add(repo, 
+                                'server',
+                                '127.0.0.1',
+                                settings.port)
+            porcelain.sync(repo, 'server')
+            porcelain.push(repo, 'server')
+        # JOIN
         else:
-            if not runtime_settings.admin:
-                utils.clean_scene()
-                # regular session, no password needed
-                admin_pass = None
+            utils.clean_scene()
 
-            try:
-                session.connect(
-                    id=settings.username,
-                    address=settings.ip,
-                    port=settings.port,
-                    ipc_port=settings.ipc_port,
-                    timeout=settings.connection_timeout,
-                    password=admin_pass
-                )
-            except Exception as e:
-                self.report({'ERROR'}, str(e))
-                logging.error(str(e))
+            repo = porcelain.clone(settings.ip, settings.ip)
 
         # Background client updates service
-        deleyables.append(timers.ClientUpdate())
-        deleyables.append(timers.DynamicRightSelectTimer())
+        # deleyables.append(timers.ClientUpdate())
+        # deleyables.append(timers.DynamicRightSelectTimer())
+        # deleyables.append(timers.ApplyTimer(
+        #     timeout=settings.depsgraph_update_rate))
         # deleyables.append(timers.PushTimer(
         #     queue=stagging,
         #     timeout=settings.depsgraph_update_rate
         #     ))
-        session_update = timers.SessionStatusUpdate()
-        session_user_sync = timers.SessionUserSync()
-        session_background_executor = timers.MainThreadExecutor(
-            execution_queue=background_execution_queue)
+        # session_update = timers.SessionStatusUpdate()
+        # session_user_sync = timers.SessionUserSync()
+        # session_background_executor = timers.MainThreadExecutor(
+        #     execution_queue=background_execution_queue)
+        # session_listen = timers.SessionListenTimer(timeout=0.001)
 
-        session_update.register()
-        session_user_sync.register()
-        session_background_executor.register()
+        # session_listen.register()
+        # session_update.register()
+        # session_user_sync.register()
+        # session_background_executor.register()
 
-        deleyables.append(session_background_executor)
-        deleyables.append(session_update)
-        deleyables.append(session_user_sync)
-
-        
+        # deleyables.append(session_background_executor)
+        # deleyables.append(session_update)
+        # deleyables.append(session_user_sync)
+        # deleyables.append(session_listen)
 
         self.report(
             {'INFO'},
@@ -329,7 +301,7 @@ class SessionInitOperator(bpy.types.Operator):
             utils.clean_scene()
 
         for scene in bpy.data.scenes:
-            session.add(scene)
+            porcelain.add(session.repository, scene)
 
         session.init()
 
@@ -351,7 +323,7 @@ class SessionStopOperator(bpy.types.Operator):
 
         if session:
             try:
-                session.disconnect()
+                session.disconnect(reason='user')
 
             except Exception as e:
                 self.report({'ERROR'}, repr(e))
@@ -600,17 +572,22 @@ class SessionApply(bpy.types.Operator):
     def execute(self, context):
         logging.debug(f"Running apply on {self.target}")
         try:
-            node_ref = session.get(uuid=self.target)
-            session.apply(self.target,
-                        force=True,
-                        force_dependencies=self.reset_dependencies)
+            node_ref = session.repository.get_node(self.target)
+            porcelain.apply(session.repository,
+                            self.target,
+                            force=True,
+                            force_dependencies=self.reset_dependencies)
             if node_ref.bl_reload_parent:
-                for parent in session._graph.find_parents(self.target):
+                for parent in session.repository.get_parents(self.target):
                     logging.debug(f"Refresh parent {parent}")
-                    session.apply(parent, force=True)
+
+                    porcelain.apply(session.repository,
+                                    parent.uuid,
+                                    force=True)
         except Exception as e:
             self.report({'ERROR'}, repr(e))
-            return {"CANCELED"}    
+            traceback.print_exc()
+            return {"CANCELLED"}
 
         return {"FINISHED"}
 
@@ -629,13 +606,14 @@ class SessionCommit(bpy.types.Operator):
 
     def execute(self, context):
         try:
-            session.commit(uuid=self.target)
+            porcelain.commit(session.repository, uuid=self.target)
             session.push(self.target)
             return {"FINISHED"}
         except Exception as e:
             self.report({'ERROR'}, repr(e))
             return {"CANCELED"}
 
+
 class ApplyArmatureOperator(bpy.types.Operator):
     """Operator which runs its self from a timer"""
     bl_idname = "session.apply_armature_operator"
@@ -650,15 +628,15 @@ class ApplyArmatureOperator(bpy.types.Operator):
             return {'CANCELLED'}
 
         if event.type == 'TIMER':
-            if session and session.state['STATE'] == STATE_ACTIVE:
-                nodes = session.list(filter=bl_types.bl_armature.BlArmature)
+            if session and session.state == STATE_ACTIVE:
+                nodes = session.list(filter=io_bpy.bl_armature.BlArmature)
 
                 for node in nodes:
-                    node_ref = session.get(uuid=node)
+                    node_ref = session.repository.get_node(node)
 
                     if node_ref.state == FETCHED:
                         try:
-                            session.apply(node)
+                            porcelain.apply(session.repository, node)
                         except Exception as e:
                             logging.error("Fail to apply armature: {e}")
 
@@ -707,6 +685,7 @@ class SessionClearCache(bpy.types.Operator):
         row = self.layout
         row.label(text=f" Do you really want to remove local cache ? ")
 
+
 class SessionPurgeOperator(bpy.types.Operator):
     "Remove node with lost references"
     bl_idname = "session.purge"
@@ -751,7 +730,6 @@ class SessionNotifyOperator(bpy.types.Operator):
         layout = self.layout
         layout.row().label(text=self.message)
 
-
     def invoke(self, context, event):
         return context.window_manager.invoke_props_dialog(self)
 
@@ -795,7 +773,8 @@ class SessionSaveBackupOperator(bpy.types.Operator, ExportHelper):
 
     @classmethod
     def poll(cls, context):
-        return session.state['STATE'] == STATE_ACTIVE
+        return session.state == STATE_ACTIVE
+
 
 class SessionStopAutoSaveOperator(bpy.types.Operator):
     bl_idname = "session.cancel_autosave"
@@ -804,7 +783,7 @@ class SessionStopAutoSaveOperator(bpy.types.Operator):
 
     @classmethod
     def poll(cls, context):
-        return (session.state['STATE'] == STATE_ACTIVE and 'SessionBackupTimer' in registry)
+        return (session.state == STATE_ACTIVE and 'SessionBackupTimer' in registry)
 
     def execute(self, context):
         autosave_timer = registry.get('SessionBackupTimer')
@@ -829,9 +808,7 @@ class SessionLoadSaveOperator(bpy.types.Operator, ImportHelper):
     )
 
     def execute(self, context):
-        from replication.graph import ReplicationGraph
-
-        # TODO: add filechecks
+        from replication.repository import Repository
 
         try:
             f = gzip.open(self.filepath, "rb")
@@ -839,34 +816,31 @@ class SessionLoadSaveOperator(bpy.types.Operator, ImportHelper):
         except OSError as e:
             f = open(self.filepath, "rb")
             db = pickle.load(f)
-        
+
         if db:
             logging.info(f"Reading {self.filepath}")
             nodes = db.get("nodes")
 
             logging.info(f"{len(nodes)} Nodes to load")
 
-            
-
             # init the factory with supported types
-            bpy_factory = ReplicatedDataFactory()
-            for type in bl_types.types_to_register():
-                type_module = getattr(bl_types, type)
+            bpy_protocol = DataTranslationProtocol()
+            for type in io_bpy.types_to_register():
+                type_module = getattr(io_bpy, type)
                 name = [e.capitalize() for e in type.split('_')[1:]]
                 type_impl_name = 'Bl'+''.join(name)
                 type_module_class = getattr(type_module, type_impl_name)
 
-
-                bpy_factory.register_type(
+                bpy_protocol.register_type(
                     type_module_class.bl_class,
                     type_module_class)
-            
-            graph = ReplicationGraph()
+
+            graph = Repository()
 
             for node, node_data in nodes:
                 node_type = node_data.get('str_type')
 
-                impl = bpy_factory.get_implementation_from_net(node_type)
+                impl = bpy_protocol.get_implementation_from_net(node_type)
 
                 if impl:
                     logging.info(f"Loading  {node}")
@@ -874,9 +848,9 @@ class SessionLoadSaveOperator(bpy.types.Operator, ImportHelper):
                                     uuid=node,
                                     dependencies=node_data['dependencies'],
                                     data=node_data['data'])
-                    instance.store(graph)
+                    graph.do_commit(instance)
                     instance.state = FETCHED
-            
+
             logging.info("Graph succefully loaded")
 
             utils.clean_scene()
@@ -889,15 +863,16 @@ class SessionLoadSaveOperator(bpy.types.Operator, ImportHelper):
             for node in graph.list_ordered():
                 graph[node].apply()
 
-
         return {'FINISHED'}
 
     @classmethod
     def poll(cls, context):
         return True
 
+
 def menu_func_import(self, context):
-    self.layout.operator(SessionLoadSaveOperator.bl_idname, text='Multi-user session snapshot (.db)')
+    self.layout.operator(SessionLoadSaveOperator.bl_idname,
+                         text='Multi-user session snapshot (.db)')
 
 
 classes = (
@@ -920,23 +895,25 @@ classes = (
     SessionPurgeOperator,
 )
 
+
 def update_external_dependencies():
-    nodes_ids = session.list(filter=bl_types.bl_file.BlFile)
+    nodes_ids = session.list(filter=io_bpy.bl_file.BlFile)
     for node_id in nodes_ids:
-        node = session.get(node_id)
+        node = session.repository.get_node(node_id)
         if node and node.owner in [session.id, RP_COMMON] \
                 and node.has_changed():
-            session.commit(node_id)
+            porcelain.commit(session.repository, node_id)
             session.push(node_id, check_data=False)
 
+
 def sanitize_deps_graph(remove_nodes: bool = False):
     """ Cleanup the replication graph
     """
-    if session and session.state['STATE'] == STATE_ACTIVE:
+    if session and session.state == STATE_ACTIVE:
         start = utils.current_milli_time()
         rm_cpt = 0
         for node_key in session.list():
-            node = session.get(node_key)
+            node = session.repository.get_node(node_key)
             if node is None \
                     or (node.state == UP and not node.resolve(construct=False)):
                 if remove_nodes:
@@ -957,18 +934,19 @@ def resolve_deps_graph(dummy):
     A future solution should be to avoid storing dataclock reference...
 
     """
-    if session and session.state['STATE'] == STATE_ACTIVE:
+    if session and session.state == STATE_ACTIVE:
         sanitize_deps_graph(remove_nodes=True)
 
+
 @persistent
 def load_pre_handler(dummy):
-    if session and session.state['STATE'] in [STATE_ACTIVE, STATE_SYNCING]:
+    if session and session.state in [STATE_ACTIVE, STATE_SYNCING]:
         bpy.ops.session.stop()
 
 
 @persistent
 def update_client_frame(scene):
-    if session and session.state['STATE'] == STATE_ACTIVE:
+    if session and session.state == STATE_ACTIVE:
         session.update_user_metadata({
             'frame_current': scene.frame_current
         })
@@ -976,7 +954,7 @@ def update_client_frame(scene):
 
 @persistent
 def depsgraph_evaluation(scene):
-    if session and session.state['STATE'] == STATE_ACTIVE:
+    if session and session.state == STATE_ACTIVE:
         context = bpy.context
         blender_depsgraph = bpy.context.view_layer.depsgraph
         dependency_updates = [u for u in blender_depsgraph.updates]
@@ -989,44 +967,43 @@ def depsgraph_evaluation(scene):
             # Is the object tracked ?
             if update.id.uuid:
                 # Retrieve local version
-                node = session.get(uuid=update.id.uuid)
-                
+                node = session.repository.get_node(update.id.uuid)
+
                 # Check our right on this update:
                 #   - if its ours or ( under common and diff), launch the
                 # update process
                 #   - if its to someone else, ignore the update
-                if node and node.owner in [session.id, RP_COMMON]:
+                if node and (node.owner == session.id or node.bl_check_common):
                     if node.state == UP:
                         try:
                             if node.has_changed():
-                                session.commit(node.uuid)
+                                porcelain.commit(session.repository, node.uuid)
                                 session.push(node.uuid, check_data=False)
                         except ReferenceError:
                             logging.debug(f"Reference error {node.uuid}")
-                            if not node.is_valid():
-                                session.remove(node.uuid)
                         except ContextError as e:
-                            logging.debug(e) 
+                            logging.debug(e)
                         except Exception as e:
                             logging.error(e)
                 else:
                     continue
-            # A new scene is created 
+            # A new scene is created
             elif isinstance(update.id, bpy.types.Scene):
-                ref = session.get(reference=update.id)
+                ref = session.repository.get_node_by_datablock(update.id)
                 if ref:
                     ref.resolve()
                 else:
-                    scn_uuid = session.add(update.id)
-                    session.commit(scn_uuid)
-                    session.push(scn_uuid, check_data=False)
+                    scn_uuid = porcelain.add(session.repository, update.id)
+                    porcelain.commit(session.repository, scn_uuid)
+                    porcelain.push(session.repository)
+
+
 def register():
     from bpy.utils import register_class
 
-    for cls in classes: 
+    for cls in classes:
         register_class(cls)
 
-
     bpy.app.handlers.undo_post.append(resolve_deps_graph)
     bpy.app.handlers.redo_post.append(resolve_deps_graph)
 
@@ -1035,7 +1012,7 @@ def register():
 
 
 def unregister():
-    if session and session.state['STATE'] == STATE_ACTIVE:
+    if session and session.state == STATE_ACTIVE:
         session.disconnect()
 
     from bpy.utils import unregister_class

multi_user/preferences.py

@@ -24,7 +24,7 @@ import os
 
 from pathlib import Path
 
-from . import bl_types, environment, addon_updater_ops, presence, ui
+from . import io_bpy, environment, addon_updater_ops, presence, ui
 from .utils import get_preferences, get_expanded_icon
 from replication.constants import RP_COMMON
 from replication.interface import session
@@ -66,14 +66,6 @@ def update_ip(self, context):
         self['ip'] = "127.0.0.1"
 
 
-def update_port(self, context):
-    max_port = self.port + 3
-
-    if self.ipc_port < max_port and \
-            self['ipc_port'] >= self.port:
-        logging.error(
-            "IPC Port in conflict with the port, assigning a random value")
-        self['ipc_port'] = random.randrange(self.port+4, 10000)
 
 
 def update_directory(self, context):
@@ -174,12 +166,6 @@ class SessionPrefs(bpy.types.AddonPreferences):
     supported_datablocks: bpy.props.CollectionProperty(
         type=ReplicatedDatablock,
     )
-    ipc_port: bpy.props.IntProperty(
-        name="ipc_port",
-        description='internal ttl port(only useful for multiple local instances)',
-        default=random.randrange(5570, 70000),
-        update=update_port,
-    )
     init_method: bpy.props.EnumProperty(
         name='init_method',
         description='Init repo',
@@ -195,7 +181,7 @@ class SessionPrefs(bpy.types.AddonPreferences):
     connection_timeout: bpy.props.IntProperty(
         name='connection timeout',
         description='connection timeout before disconnection',
-        default=1000
+        default=5000
     )
     # Replication update settings
     depsgraph_update_rate: bpy.props.FloatProperty(
@@ -421,18 +407,17 @@ class SessionPrefs(bpy.types.AddonPreferences):
     def generate_supported_types(self):
         self.supported_datablocks.clear()
 
-        for type in bl_types.types_to_register():
+        bpy_protocol = io_bpy.get_data_translation_protocol()
+
+        # init the factory with supported types
+        for impl in bpy_protocol.implementations.values():
             new_db = self.supported_datablocks.add()
 
-            type_module = getattr(bl_types, type)
-            name = [e.capitalize() for e in type.split('_')[1:]]
-            type_impl_name = 'Bl'+''.join(name)
-            type_module_class = getattr(type_module, type_impl_name)
-            new_db.name = type_impl_name
-            new_db.type_name = type_impl_name
+            new_db.name = impl.__name__
+            new_db.type_name = impl.__name__
             new_db.use_as_filter = True
-            new_db.icon = type_module_class.bl_icon
-            new_db.bl_name = type_module_class.bl_id
+            new_db.icon = impl.bl_icon
+            new_db.bl_name = impl.bl_id
 
 
 def client_list_callback(scene, context):
@@ -516,21 +501,15 @@ class SessionProps(bpy.types.PropertyGroup):
         description='Session password',
         subtype='PASSWORD'
     )
-    internet_ip: bpy.props.StringProperty(
-        name="internet ip",
-        default="no found",
-        description='Internet interface ip',
-    )
     user_snap_running: bpy.props.BoolProperty(
         default=False
     )
     time_snap_running: bpy.props.BoolProperty(
         default=False
     )
-    is_host: bpy.props.BoolProperty(
-        default=False
-    )
 
+def get_preferences():
+    return bpy.context.preferences.addons[__package__].preferences
 
 classes = (
     SessionUser,
@@ -549,7 +528,7 @@ def register():
 
     prefs = bpy.context.preferences.addons[__package__].preferences
     if len(prefs.supported_datablocks) == 0:
-        logging.debug('Generating bl_types preferences')
+        logging.debug('Generating io_bpy preferences')
         prefs.generate_supported_types()
 
 

multi_user/presence.py

@@ -30,7 +30,7 @@ import mathutils
 from bpy_extras import view3d_utils
 from gpu_extras.batch import batch_for_shader
 from replication.constants import (STATE_ACTIVE, STATE_AUTH, STATE_CONFIG,
-                                   STATE_INITIAL, STATE_LAUNCHING_SERVICES,
+                                   STATE_INITIAL, CONNECTING,
                                    STATE_LOBBY, STATE_QUITTING, STATE_SRV_SYNC,
                                    STATE_SYNCING, STATE_WAITING)
 from replication.interface import session
@@ -399,7 +399,7 @@ class SessionStatusWidget(Widget):
         text_scale = self.preferences.presence_hud_scale
         ui_scale = bpy.context.preferences.view.ui_scale
         color = [1, 1, 0, 1]
-        state = session.state.get('STATE')
+        state = session.state
         state_str = f"{get_state_str(state)}"
 
         if state == STATE_ACTIVE:

multi_user/timers.py

@@ -17,13 +17,14 @@
 
 import logging
 import sys
-
+import traceback
 import bpy
 from replication.constants import (FETCHED, RP_COMMON, STATE_ACTIVE,
                                    STATE_INITIAL, STATE_LOBBY, STATE_QUITTING,
                                    STATE_SRV_SYNC, STATE_SYNCING, UP)
 from replication.exception import NonAuthorizedOperationError, ContextError
 from replication.interface import session
+from replication import porcelain
 
 from . import operators, utils
 from .presence import (UserFrustumWidget, UserNameWidget, UserSelectionWidget,
@@ -71,7 +72,7 @@ class Timer(object):
         except Exception as e:
             logging.error(e)
             self.unregister()
-            session.disconnect()
+            session.disconnect(reason=f"Error during timer {self.id} execution")
         else:    
             if self.is_running:
                 return self._timeout
@@ -100,24 +101,31 @@ class SessionBackupTimer(Timer):
     def execute(self):
         session.save(self._filepath)
 
+class SessionListenTimer(Timer):
+    def execute(self):
+        session.listen()
+
 class ApplyTimer(Timer):
     def execute(self):
-        if session and session.state['STATE'] == STATE_ACTIVE:
+        if session and session.state == STATE_ACTIVE:
             nodes = session.list()
 
             for node in nodes:
-                node_ref = session.get(uuid=node)
+                node_ref = session.repository.get_node(node)
 
                 if node_ref.state == FETCHED:
                     try:
-                        session.apply(node)
+                        porcelain.apply(session.repository, node)
                     except Exception as e:
-                        logging.error(f"Fail to apply {node_ref.uuid}: {e}")
+                        logging.error(f"Fail to apply {node_ref.uuid}")
+                        traceback.print_exc()
                     else:
                         if node_ref.bl_reload_parent:
-                            for parent in session._graph.find_parents(node):
+                            for parent in session.repository.get_parents(node):
                                 logging.debug("Refresh parent {node}")
-                                session.apply(parent, force=True)
+                                porcelain.apply(session.repository,
+                                      parent.uuid,
+                                      force=True)
 
 
 class DynamicRightSelectTimer(Timer):
@@ -130,7 +138,7 @@ class DynamicRightSelectTimer(Timer):
     def execute(self):
         settings = utils.get_preferences()
 
-        if session and session.state['STATE'] == STATE_ACTIVE:
+        if session and session.state == STATE_ACTIVE:
             # Find user
             if self._user is None:
                 self._user = session.online_users.get(settings.username)
@@ -144,7 +152,7 @@ class DynamicRightSelectTimer(Timer):
 
                 # if an annotation exist and is tracked
                 if annotation_gp and annotation_gp.uuid:
-                    registered_gp = session.get(uuid=annotation_gp.uuid)
+                    registered_gp = session.repository.get_node(annotation_gp.uuid)
                     if is_annotating(bpy.context):
                         # try to get the right on it
                         if registered_gp.owner == RP_COMMON:
@@ -158,9 +166,9 @@ class DynamicRightSelectTimer(Timer):
                                 affect_dependencies=False)
                         
                         if registered_gp.owner == settings.username:
-                            gp_node = session.get(uuid=annotation_gp.uuid)
+                            gp_node = session.repository.get_node(annotation_gp.uuid)
                             if gp_node.has_changed():
-                                session.commit(gp_node.uuid)
+                                porcelain.commit(session.repository, gp_node.uuid)
                                 session.push(gp_node.uuid, check_data=False)
 
                     elif self._annotating:
@@ -182,7 +190,7 @@ class DynamicRightSelectTimer(Timer):
 
                     # change old selection right to common
                     for obj in obj_common:
-                        node = session.get(uuid=obj)
+                        node = session.repository.get_node(obj)
 
                         if node and (node.owner == settings.username or node.owner == RP_COMMON):
                             recursive = True
@@ -200,7 +208,7 @@ class DynamicRightSelectTimer(Timer):
 
                     # change new selection to our
                     for obj in obj_ours:
-                        node = session.get(uuid=obj)
+                        node = session.repository.get_node(obj)
 
                         if node and node.owner == RP_COMMON:
                             recursive = True
@@ -233,7 +241,7 @@ class DynamicRightSelectTimer(Timer):
                         owned_keys = session.list(
                             filter_owner=settings.username)
                         for key in owned_keys:
-                            node = session.get(uuid=key)
+                            node = session.repository.get_node(key)
                             try:
                                 session.change_owner(
                                     key,
@@ -247,7 +255,8 @@ class DynamicRightSelectTimer(Timer):
             for obj in bpy.data.objects:
                 object_uuid = getattr(obj, 'uuid', None)
                 if object_uuid:
-                    is_selectable = not session.is_readonly(object_uuid)
+                    node = session.repository.get_node(object_uuid)
+                    is_selectable = not node.owner in [settings.username, RP_COMMON]
                     if obj.hide_select != is_selectable:
                         obj.hide_select = is_selectable
 
@@ -262,9 +271,8 @@ class ClientUpdate(Timer):
         settings = utils.get_preferences()
 
         if session and renderer:
-            if session.state['STATE'] in [STATE_ACTIVE, STATE_LOBBY]:
-                local_user = session.online_users.get(
-                    settings.username)
+            if session.state in [STATE_ACTIVE, STATE_LOBBY]:
+                local_user = session.online_users.get(settings.username)
 
                 if not local_user:
                     return

multi_user/ui.py

@@ -26,7 +26,7 @@ from replication.constants import (ADDED, ERROR, FETCHED,
                                                      STATE_INITIAL, STATE_SRV_SYNC,
                                                      STATE_WAITING, STATE_QUITTING,
                                                      STATE_LOBBY,
-                                                     STATE_LAUNCHING_SERVICES)
+                                                     CONNECTING)
 from replication import __version__
 from replication.interface import session
 from .timers import registry
@@ -71,9 +71,9 @@ class SESSION_PT_settings(bpy.types.Panel):
 
     def draw_header(self, context):
         layout = self.layout
-        if session and session.state['STATE'] != STATE_INITIAL:
+        if session and session.state != STATE_INITIAL:
             cli_state = session.state
-            state =  session.state.get('STATE')
+            state =  session.state
             connection_icon = "KEYTYPE_MOVING_HOLD_VEC"
 
             if state == STATE_ACTIVE:
@@ -81,7 +81,7 @@ class SESSION_PT_settings(bpy.types.Panel):
             else:
                 connection_icon = 'PROP_CON'
 
-            layout.label(text=f"Session - {get_state_str(cli_state['STATE'])}", icon=connection_icon)
+            layout.label(text=f"Session - {get_state_str(cli_state)}", icon=connection_icon)
         else:
             layout.label(text=f"Session - v{__version__}",icon="PROP_OFF")
 
@@ -94,13 +94,13 @@ class SESSION_PT_settings(bpy.types.Panel):
         if hasattr(context.window_manager, 'session'):
             # STATE INITIAL
             if not session \
-               or (session and session.state['STATE'] == STATE_INITIAL):
+               or (session and session.state == STATE_INITIAL):
                 pass
             else:
-                cli_state = session.state                
+                progress = session.state_progress           
                 row = layout.row()
 
-                current_state = cli_state['STATE']
+                current_state = session.state
                 info_msg = None
 
                 if current_state in [STATE_ACTIVE]:
@@ -111,8 +111,6 @@ class SESSION_PT_settings(bpy.types.Panel):
 
                 row= layout.row()
 
-                if current_state in [STATE_ACTIVE] and runtime_settings.is_host:
-                    info_msg = f"LAN: {runtime_settings.internet_ip}" 
                 if current_state == STATE_LOBBY:
                     info_msg = "Waiting for the session to start."
 
@@ -124,8 +122,8 @@ class SESSION_PT_settings(bpy.types.Panel):
                 if current_state in [STATE_SYNCING, STATE_SRV_SYNC, STATE_WAITING]:
                     info_box = row.box()
                     info_box.row().label(text=printProgressBar(
-                        cli_state['CURRENT'],
-                        cli_state['TOTAL'],
+                        progress['current'],
+                        progress['total'],
                         length=16
                     ))
 
@@ -141,7 +139,7 @@ class SESSION_PT_settings_network(bpy.types.Panel):
     @classmethod
     def poll(cls, context):
         return not session \
-            or (session and session.state['STATE'] == 0)
+            or (session and session.state == 0)
 
     def draw_header(self, context):
         self.layout.label(text="", icon='URL')
@@ -199,7 +197,7 @@ class SESSION_PT_settings_user(bpy.types.Panel):
     @classmethod
     def poll(cls, context):
         return not session \
-            or (session and session.state['STATE'] == 0)
+            or (session and session.state == 0)
     
     def draw_header(self, context):
         self.layout.label(text="", icon='USER')
@@ -230,7 +228,7 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
     @classmethod
     def poll(cls, context):
         return not session \
-            or (session and session.state['STATE'] == 0)
+            or (session and session.state == 0)
 
     def draw_header(self, context):
         self.layout.label(text="", icon='PREFERENCES')
@@ -251,9 +249,6 @@ class SESSION_PT_advanced_settings(bpy.types.Panel):
             emboss=False)
         
         if settings.sidebar_advanced_net_expanded:
-            net_section_row = net_section.row()
-            net_section_row.label(text="IPC Port:")
-            net_section_row.prop(settings, "ipc_port", text="")
             net_section_row = net_section.row()
             net_section_row.label(text="Timeout (ms):")
             net_section_row.prop(settings, "connection_timeout", text="")
@@ -322,7 +317,7 @@ class SESSION_PT_user(bpy.types.Panel):
 
     @classmethod
     def poll(cls, context):
-        return session and session.state['STATE'] in [STATE_ACTIVE, STATE_LOBBY]
+        return session and session.state in [STATE_ACTIVE, STATE_LOBBY]
 
     def draw_header(self, context):
         self.layout.label(text="", icon='USER')
@@ -353,7 +348,7 @@ class SESSION_PT_user(bpy.types.Panel):
         if active_user != 0 and active_user.username != settings.username:
             row = layout.row()
             user_operations = row.split()
-            if  session.state['STATE'] == STATE_ACTIVE:
+            if  session.state == STATE_ACTIVE:
                 
                 user_operations.alert = context.window_manager.session.time_snap_running
                 user_operations.operator(
@@ -411,7 +406,7 @@ class SESSION_PT_presence(bpy.types.Panel):
     @classmethod
     def poll(cls, context):
         return not session \
-            or (session and session.state['STATE'] in [STATE_INITIAL, STATE_ACTIVE])
+            or (session and session.state in [STATE_INITIAL, STATE_ACTIVE])
 
     def draw_header(self, context):
         self.layout.prop(context.window_manager.session,
@@ -441,7 +436,7 @@ class SESSION_PT_presence(bpy.types.Panel):
 def draw_property(context, parent, property_uuid, level=0):
     settings = get_preferences()
     runtime_settings = context.window_manager.session
-    item = session.get(uuid=property_uuid)
+    item = session.repository.get_node(property_uuid)
 
     area_msg = parent.row(align=True)
 
@@ -519,8 +514,8 @@ class SESSION_PT_repository(bpy.types.Panel):
                 admin = usr['admin']
         return hasattr(context.window_manager, 'session') and \
             session and \
-            (session.state['STATE'] == STATE_ACTIVE or \
-            session.state['STATE'] == STATE_LOBBY and admin)
+            (session.state == STATE_ACTIVE or \
+            session.state == STATE_LOBBY and admin)
 
     def draw_header(self, context):
         self.layout.label(text="", icon='OUTLINER_OB_GROUP_INSTANCE')
@@ -536,7 +531,7 @@ class SESSION_PT_repository(bpy.types.Panel):
 
         row = layout.row()
 
-        if session.state['STATE'] == STATE_ACTIVE:
+        if session.state == STATE_ACTIVE:
             if 'SessionBackupTimer' in registry:
                 row.alert = True
                 row.operator('session.cancel_autosave', icon="CANCEL")
@@ -568,7 +563,7 @@ class SESSION_PT_repository(bpy.types.Panel):
                 filter_owner=settings.username) if runtime_settings.filter_owned else session.list()
 
             client_keys = [key for key in key_to_filter
-                           if session.get(uuid=key).str_type
+                           if session.repository.get_node(key).str_type
                            in types_filter]
 
             if client_keys:
@@ -579,7 +574,7 @@ class SESSION_PT_repository(bpy.types.Panel):
             else:
                 row.label(text="Empty")
 
-        elif session.state['STATE'] == STATE_LOBBY and usr and usr['admin']:
+        elif session.state == STATE_LOBBY and usr and usr['admin']:
             row.operator("session.init", icon='TOOL_SETTINGS', text="Init")
         else:
             row.label(text="Waiting to start")

multi_user/utils.py

@@ -36,7 +36,7 @@ from replication.constants import (STATE_ACTIVE, STATE_AUTH,
                                   STATE_INITIAL, STATE_SRV_SYNC,
                                   STATE_WAITING, STATE_QUITTING,
                                   STATE_LOBBY,
-                                  STATE_LAUNCHING_SERVICES)
+                                  CONNECTING)
 
 
 def find_from_attr(attr_name, attr_value, list):
@@ -92,7 +92,7 @@ def get_state_str(state):
         state_str = 'OFFLINE'
     elif state == STATE_QUITTING:
         state_str = 'QUITTING'
-    elif state == STATE_LAUNCHING_SERVICES:
+    elif state == CONNECTING:
         state_str = 'LAUNCHING SERVICES'
     elif state == STATE_LOBBY:
         state_str = 'LOBBY'

scripts/test_addon.py

@@ -13,7 +13,7 @@ def main():
     if len(sys.argv) > 2:
         blender_rev = sys.argv[2]
     else:
-        blender_rev = "2.91.0"
+        blender_rev = "2.92.0"
     
     try:
         exit_val = BAT.test_blender_addon(addon_path=addon, blender_revision=blender_rev)

tests/test_bl_types/test_action.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_action import BlAction
+from multi_user.io_bpy.bl_action import BlAction
 
 INTERPOLATION = ['CONSTANT', 'LINEAR', 'BEZIER', 'SINE', 'QUAD', 'CUBIC', 'QUART', 'QUINT', 'EXPO', 'CIRC', 'BACK', 'BOUNCE', 'ELASTIC']
 

tests/test_bl_types/test_armature.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_armature import BlArmature
+from multi_user.io_bpy.bl_armature import BlArmature
 
 def test_armature(clear_blend):
     bpy.ops.object.armature_add()

tests/test_bl_types/test_camera.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_camera import BlCamera
+from multi_user.io_bpy.bl_camera import BlCamera
 
 
 @pytest.mark.parametrize('camera_type', ['PANO','PERSP','ORTHO'])

tests/test_bl_types/test_collection.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 from uuid import uuid4
 import bpy
 import random
-from multi_user.bl_types.bl_collection import BlCollection
+from multi_user.io_bpy.bl_collection import BlCollection
 
 def test_collection(clear_blend):
     # Generate a collection with childrens and a cube

tests/test_bl_types/test_curve.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_curve import BlCurve
+from multi_user.io_bpy.bl_curve import BlCurve
 
 @pytest.mark.parametrize('curve_type', ['TEXT','BEZIER'])
 def test_curve(clear_blend, curve_type):

tests/test_bl_types/test_gpencil.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_gpencil import BlGpencil
+from multi_user.io_bpy.bl_gpencil import BlGpencil
 
 
 def test_gpencil(clear_blend):

tests/test_bl_types/test_lattice.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_lattice import BlLattice
+from multi_user.io_bpy.bl_lattice import BlLattice
 
 
 def test_lattice(clear_blend):

tests/test_bl_types/test_lightprobes.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_lightprobe import BlLightprobe
+from multi_user.io_bpy.bl_lightprobe import BlLightprobe
 
 
 @pytest.mark.skipif(bpy.app.version[1] < 83, reason="requires blender 2.83 or higher")

tests/test_bl_types/test_lights.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_light import BlLight
+from multi_user.io_bpy.bl_light import BlLight
 
 
 @pytest.mark.parametrize('light_type', ['SPOT','SUN','POINT','AREA'])

tests/test_bl_types/test_material.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_material import BlMaterial
+from multi_user.io_bpy.bl_material import BlMaterial
 
 
 def test_material_nodes(clear_blend):

tests/test_bl_types/test_mesh.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_mesh import BlMesh
+from multi_user.io_bpy.bl_mesh import BlMesh
 
 @pytest.mark.parametrize('mesh_type', ['EMPTY','FILLED'])
 def test_mesh(clear_blend, mesh_type):

tests/test_bl_types/test_metaball.py

@@ -4,7 +4,7 @@ import pytest
 from deepdiff import DeepDiff
 
 import bpy
-from multi_user.bl_types.bl_metaball import BlMetaball
+from multi_user.io_bpy.bl_metaball import BlMetaball
 
 
 @pytest.mark.parametrize('metaballs_type', ['PLANE','CAPSULE','BALL','ELLIPSOID','CUBE'])

tests/test_bl_types/test_object.py

@@ -5,9 +5,9 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_object import BlObject
+from multi_user.io_bpy.bl_object import BlObject
 
-# Removed 'BUILD' modifier because the seed doesn't seems to be
+# Removed 'BUILD', 'SOFT_BODY' modifier because the seed doesn't seems to be
 # correctly initialized (#TODO: report the bug)
 MOFIFIERS_TYPES = [
     'DATA_TRANSFER', 'MESH_CACHE', 'MESH_SEQUENCE_CACHE',
@@ -22,8 +22,7 @@ MOFIFIERS_TYPES = [
     'MESH_DEFORM', 'SHRINKWRAP', 'SIMPLE_DEFORM', 'SMOOTH',
     'CORRECTIVE_SMOOTH', 'LAPLACIANSMOOTH', 'SURFACE_DEFORM',
     'WARP', 'WAVE', 'CLOTH', 'COLLISION', 'DYNAMIC_PAINT',
-    'EXPLODE', 'FLUID', 'OCEAN', 'PARTICLE_INSTANCE',
-    'SOFT_BODY', 'SURFACE']
+    'EXPLODE', 'FLUID', 'OCEAN', 'PARTICLE_INSTANCE', 'SURFACE']
 
 GP_MODIFIERS_TYPE = [
     'GP_ARRAY', 'GP_BUILD', 'GP_MIRROR', 'GP_MULTIPLY',
@@ -72,5 +71,5 @@ def test_object(clear_blend):
     test = implementation._construct(expected)
     implementation._load(expected, test)
     result = implementation._dump(test)
-
+    print(DeepDiff(expected, result))
     assert not DeepDiff(expected, result)

tests/test_bl_types/test_scene.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_scene import BlScene
+from multi_user.io_bpy.bl_scene import BlScene
 from multi_user.utils import get_preferences
 
 def test_scene(clear_blend):

tests/test_bl_types/test_speaker.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_speaker import BlSpeaker
+from multi_user.io_bpy.bl_speaker import BlSpeaker
 
 def test_speaker(clear_blend):
     bpy.ops.object.speaker_add()

tests/test_bl_types/test_texture.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_texture import BlTexture
+from multi_user.io_bpy.bl_texture import BlTexture
 
 TEXTURE_TYPES = ['NONE', 'BLEND', 'CLOUDS', 'DISTORTED_NOISE', 'IMAGE', 'MAGIC', 'MARBLE', 'MUSGRAVE', 'NOISE', 'STUCCI', 'VORONOI', 'WOOD']
 

tests/test_bl_types/test_volume.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_volume import BlVolume
+from multi_user.io_bpy.bl_volume import BlVolume
 
 def test_volume(clear_blend):
     datablock = bpy.data.volumes.new("Test")

tests/test_bl_types/test_world.py

@@ -5,7 +5,7 @@ from deepdiff import DeepDiff
 
 import bpy
 import random
-from multi_user.bl_types.bl_world import BlWorld
+from multi_user.io_bpy.bl_world import BlWorld
 
 def test_world(clear_blend):
     datablock = bpy.data.worlds.new('test')