102 lines
4.6 KiB
C++
102 lines
4.6 KiB
C++
#include "byte_patch_manager.hpp"
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#include "gta/net_array.hpp"
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#include "hooking/hooking.hpp"
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#include "memory/byte_patch.hpp"
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#include "pointers.hpp"
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#include "util/explosion_anti_cheat_bypass.hpp"
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#include "util/vehicle.hpp"
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#include "util/world_model.hpp"
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extern "C" void sound_overload_detour();
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uint64_t g_sound_overload_ret_addr;
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namespace big
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{
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static void init()
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{
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// Patch World Model Spawn Bypass
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std::array<uint8_t, 24> world_spawn_patch;
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std::fill(world_spawn_patch.begin(), world_spawn_patch.end(), 0x90);
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world_model_bypass::m_world_model_spawn_bypass =
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memory::byte_patch::make(g_pointers->m_gta.m_world_model_spawn_bypass, world_spawn_patch).get();
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// Patch blocked explosions
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explosion_anti_cheat_bypass::m_can_blame_others =
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memory::byte_patch::make(g_pointers->m_gta.m_blame_explode.as<uint16_t*>(), 0xE990).get();
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explosion_anti_cheat_bypass::m_can_use_blocked_explosions =
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memory::byte_patch::make(g_pointers->m_gta.m_explosion_patch.sub(12).as<uint16_t*>(), 0x9090).get();
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// Skip matchmaking session validity checks
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memory::byte_patch::make(g_pointers->m_gta.m_is_matchmaking_session_valid.as<void*>(), std::to_array({0xB0, 0x01, 0xC3}))
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->apply(); // has no observable side effects
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// Bypass netarray buffer cache when enabled
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broadcast_net_array::m_patch =
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memory::byte_patch::make(g_pointers->m_gta.m_broadcast_patch.as<uint8_t*>(), 0xEB).get();
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// Disable cheat activated netevent when creator warping
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memory::byte_patch::make(g_pointers->m_gta.m_creator_warp_cheat_triggered_patch.as<uint8_t*>(), 0xEB)->apply();
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// Setup inline hook for sound overload crash protection
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g_sound_overload_ret_addr = g_pointers->m_gta.m_sound_overload_detour.add(13 + 15).as<decltype(g_sound_overload_ret_addr)>();
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std::vector<byte> bytes = {0xFF, 0x25, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90}; // far jump opcode + a nop opcode
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*(void**)(bytes.data() + 6) = sound_overload_detour;
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memory::byte_patch::make(g_pointers->m_gta.m_sound_overload_detour.add(13).as<void*>(), bytes)->apply();
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// Disable collision when enabled
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vehicle::disable_collisions::m_patch =
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memory::byte_patch::make(g_pointers->m_gta.m_disable_collision.sub(2).as<uint8_t*>(), 0xEB).get();
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// Crash Trigger
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memory::byte_patch::make(g_pointers->m_gta.m_crash_trigger.add(4).as<uint8_t*>(), 0x00)->apply();
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// Script VM patches
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_1.add(2).as<uint32_t*>(), 0xc9310272)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_1.add(6).as<uint16_t*>(), 0x9090)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_2.add(2).as<uint32_t*>(), 0xc9310272)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_2.add(6).as<uint16_t*>(), 0x9090)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_3.add(2).as<uint32_t*>(), 0xd2310272)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_3.add(6).as<uint16_t*>(), 0x9090)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_4.add(2).as<uint32_t*>(), 0xd2310272)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_4.add(6).as<uint16_t*>(), 0x9090)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_5.add(2).as<uint32_t*>(), 0xd2310272)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_5.add(6).as<uint16_t*>(), 0x9090)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_6.add(2).as<uint32_t*>(), 0xd2310272)->apply();
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memory::byte_patch::make(g_pointers->m_gta.m_script_vm_patch_6.add(6).as<uint16_t*>(), 0x9090)->apply();
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// Patch script network check
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memory::byte_patch::make(g_pointers->m_gta.m_model_spawn_bypass, std::vector{0x90, 0x90})->apply(); // this is no longer integrity checked
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// Prevent the attribute task from failing
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memory::byte_patch::make(g_pointers->m_sc.m_read_attribute_patch, std::vector{0x90, 0x90})->apply();
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memory::byte_patch::make(g_pointers->m_sc.m_read_attribute_patch_2, std::vector{0xB0, 0x01})->apply();
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// Prevent the game from crashing when flooded with outgoing events
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memory::byte_patch::make(g_pointers->m_gta.m_free_event_error, std::vector{0x90, 0x90, 0x90, 0x90, 0x90})->apply();
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// Always send the special ability event
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memory::byte_patch::make(g_pointers->m_gta.m_activate_special_ability_patch, std::to_array({0xB0, 0x01, 0xC3}))->apply();
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}
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byte_patch_manager::byte_patch_manager()
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{
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init();
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g_byte_patch_manager = this;
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}
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byte_patch_manager::~byte_patch_manager()
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{
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memory::byte_patch::restore_all();
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g_byte_patch_manager = nullptr;
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}
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}
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