some early steps remaking the GUI with UnityEngine.UI, working in all tested game so far

2025-07-01 19:13:03 +08:00 · 2020-10-23 01:50:33 +11:00
parent 48ed78ec36
commit 508ca27ec2
79 changed files with 2206 additions and 10276 deletions
--- a/src/UI/UIManager.cs
+++ b/src/UI/UIManager.cs
@ -0,0 +1,126 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using ExplorerBeta.Input;
+using ExplorerBeta.UI.Main;
+using ExplorerBeta.UI.Shared;
+using UnityEngine;
+using UnityEngine.EventSystems;
+using UnityEngine.UI;
+ 
+namespace ExplorerBeta.UI
+{
+    // This class itself is fine.
+
+    public static class UIManager
+    {
+        public static GameObject CanvasRoot { get; private set; }
+        public static EventSystem EventSys { get; private set; }
+        public static StandaloneInputModule InputModule { get; private set; }
+
+        public static void Init()
+        {
+            var res = UIFactory.UIResources = new UIFactory.Resources();
+            var bg = CreateSprite(MakeSolidTexture(new Color(0.1f, 0.1f, 0.1f), 1, 1), new Rect(0, 0, 1, 1));
+            res.background = bg;
+
+            // Create core UI Canvas and Event System handler
+            CreateRootCanvas();
+
+            // Create submodules
+            new MainMenu();
+        }
+
+        public static void SetEventSystem()
+        {
+            EventSystem.current = EventSys;
+            InputModule.ActivateModule();
+        }
+
+        private static GameObject CreateRootCanvas()
+        {
+            var rootObj = new GameObject("ExplorerCanvas");
+            UnityEngine.Object.DontDestroyOnLoad(rootObj);
+            rootObj.layer = 5;
+
+            CanvasRoot = rootObj;
+            CanvasRoot.transform.position = new Vector3(0f, 0f, 1f);
+
+            EventSys = rootObj.AddComponent<EventSystem>();
+            InputModule = rootObj.AddComponent<StandaloneInputModule>();
+            InputModule.ActivateModule();
+
+            var canvas = rootObj.AddComponent<Canvas>();
+            canvas.renderMode = RenderMode.ScreenSpaceCamera;
+            canvas.referencePixelsPerUnit = 100;
+            canvas.sortingOrder = 999;
+
+            var scaler = rootObj.AddComponent<CanvasScaler>();
+            scaler.referenceResolution = new Vector2(1920, 1080);
+            scaler.screenMatchMode = CanvasScaler.ScreenMatchMode.Expand;
+
+            rootObj.AddComponent<GraphicRaycaster>();
+
+            return rootObj;
+        }
+
+        public static void Update()
+        {
+            if (EventSys && InputModule)
+            {
+                if (EventSystem.current != EventSys)
+                {
+                    ForceUnlockCursor.SetEventSystem();
+                    //ForceUnlockCursor.Unlock = true;
+                }
+
+                // Fix for games which override the InputModule pointer events (eg, VRChat)
+                if (InputModule.m_InputPointerEvent != null)
+                {
+                    var evt = InputModule.m_InputPointerEvent;
+                    if (!evt.eligibleForClick && evt.selectedObject)
+                    {
+                        evt.eligibleForClick = true;
+                    }
+                }
+            }
+
+            if (PanelDragger.Instance != null)
+            {
+                PanelDragger.Instance.Update();
+            }
+        }
+
+        public static void OnSceneChange()
+        {
+            // todo
+        }
+
+        public static Sprite CreateSprite(Texture2D tex, Rect size)
+        {
+#if CPP
+            var pivot = Vector2.zero;
+            var border = Vector4.zero;
+            return Sprite.CreateSprite_Injected(tex, ref size, ref pivot, 100f, 0u, SpriteMeshType.Tight, ref border, false);
+#else
+            return Sprite.Create(tex, size, Vector2.zero);
+#endif
+        }
+
+        public static Texture2D MakeSolidTexture(Color color, int width, int height)
+        {
+            var pixels = new Color[width * height];
+            for (int i = 0; i < pixels.Length; i++)
+            {
+                pixels[i] = color;
+            }
+
+            var tex = new Texture2D(width, height);
+            tex.SetPixels(pixels);
+            tex.Apply();
+
+            return tex;
+        }
+    }
+}