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Add comments to Frame Rate Fixes (#3109)
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@Merlin
Merlin committed Jul 7, 2023
1 parent 4a0b239 commit e4e6d1b
Showing 1 changed file with 29 additions and 0 deletions.
29 changes: 29 additions & 0 deletions Client/multiplayer_sa/CMultiplayerSA_FrameRateFixes.cpp
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Expand Up @@ -15,6 +15,7 @@ static unsigned int nLastFrameTime = 0;

constexpr float kOriginalTimeStep = 50.0f / 30.0f;

// Fixes player movement issue while aiming and walking on high FPS.
#define HOOKPOS_CTaskSimpleUseGun__SetMoveAnim 0x61E4F2
#define HOOKSIZE_CTaskSimpleUseGun__SetMoveAnim 0x6
const unsigned int RETURN_CTaskSimpleUseGun__SetMoveAnim = 0x61E4F8;
Expand All @@ -32,6 +33,7 @@ void _declspec(naked) HOOK_CTaskSimpleUseGun__SetMoveAnim()
}
}

// Fixes excessively fast camera shaking with setCameraShakeLevel on high FPS.
#define HOOKPOS_CCamera__Process 0x52C723
#define HOOKSIZE_CCamera__Process 0x12
static const unsigned int RETURN_CCamera__Process = 0x52C735;
Expand All @@ -47,6 +49,7 @@ static void _declspec(naked) HOOK_CCamera__Process()
}
}

// Fixes helicopters accelerating excessively during takeoff at high FPS.
#define HOOKPOS_CHeli__ProcessFlyingCarStuff 0x6C4F13
#define HOOKSIZE_CHeli__ProcessFlyingCarStuff 0x2A
static const unsigned int RETURN_CHeli__ProcessFlyingCarStuff = 0x6C4F3D;
Expand All @@ -73,6 +76,7 @@ static void _declspec(naked) HOOK_CHeli__ProcessFlyingCarStuff()
}
}

// Fixes excessively fast movement of fog on high FPS.
#define HOOKPOS_CClouds__MovingFog_Update 0x716BA6
#define HOOKSIZE_CClouds__MovingFog_Update 0x16
static const unsigned int RETURN_CClouds__MovingFog_Update = 0x716BBC;
Expand All @@ -92,6 +96,7 @@ static void _declspec(naked) HOOK_CClouds__MovingFog_Update()
}
}

// Fixes glass shards spinning and moving at excessive speeds on high FPS.
#define HOOKPOS_CFallingGlassPane__Update_A 0x71AABF
#define HOOKSIZE_CFallingGlassPane__Update_A 0x6
static const unsigned int RETURN_CFallingGlassPane__Update_A = 0x71AAC5;
Expand All @@ -114,6 +119,7 @@ static void _declspec(naked) HOOK_CFallingGlassPane__Update_A()
}
}

// Fixes glass shards spinning and moving at excessive speeds on high FPS.
#define HOOKPOS_CFallingGlassPane__Update_B 0x71AAEA
#define HOOKSIZE_CFallingGlassPane__Update_B 0x6
static const unsigned int RETURN_CFallingGlassPane__Update_B = 0x71AAF0;
Expand All @@ -138,6 +144,7 @@ static void _declspec(naked) HOOK_CFallingGlassPane__Update_B()
}
}

// Fixes glass shards spinning and moving at excessive speeds on high FPS.
#define HOOKPOS_CFallingGlassPane__Update_C 0x71AB29
#define HOOKSIZE_CFallingGlassPane__Update_C 0x6
static const unsigned int RETURN_CFallingGlassPane__Update_C = 0x71AB2F;
Expand All @@ -162,6 +169,7 @@ static void _declspec(naked) HOOK_CFallingGlassPane__Update_C()
}
}

// Ensure that CTimer::CurrentFrame is updated only every 33+ milliseconds.
#define HOOKPOS_CTimer__Update 0x561C5D
#define HOOKSIZE_CTimer__Update 0xE
static void _declspec(naked) HOOK_CTimer__Update()
Expand All @@ -188,6 +196,7 @@ static void _declspec(naked) HOOK_CTimer__Update()
}
}

// Fixes premature despawning of broken breakable objects on high FPS.
#define HOOKPOS_BreakObject_c__Update 0x59E420
#define HOOKSIZE_BreakObject_c__Update 0xB
static const unsigned int RETURN_BreakObject_c__Update = 0x59E42B;
Expand All @@ -208,6 +217,7 @@ static void _declspec(naked) HOOK_BreakObject_c__Update()
}
}

// Fixes limited reach of the water cannon on high FPS.
#define HOOKPOS_CWaterCannon__Update_OncePerFrame 0x72A29B
#define HOOKSIZE_CWaterCannon__Update_OncePerFrame 0x5
static const unsigned int RETURN_CWaterCannon__Update_OncePerFrame = 0x72A2A0;
Expand All @@ -228,6 +238,7 @@ static void _declspec(naked) HOOK_CWaterCannon__Update_OncePerFrame()
}
}

// Fixes money animation issues on high FPS.
#define HOOKPOS_CPlayerInfo__Process 0x5700F5
#define HOOKSIZE_CPlayerInfo__Process 0x6
static const unsigned int RETURN_CPlayerInfo__Process = 0x5700FB;
Expand All @@ -247,6 +258,7 @@ static void _declspec(naked) HOOK_CPlayerInfo__Process()
}
}

// Fixes excessive effects spawning from rocket launchers on high FPS.
#define HOOKPOS_CProjectileInfo__Update 0x738C63
#define HOOKSIZE_CProjectileInfo__Update 0x5
static const unsigned int RETURN_CProjectileInfo__Update = 0x738C68;
Expand All @@ -267,6 +279,7 @@ static void _declspec(naked) HOOK_CProjectileInfo__Update()
}
}

// Fixes excessive surface effects spawning from wheels on high FPS.
#define HOOKPOS_CVehicle__AddWheelDirtAndWater 0x6D2D50
#define HOOKSIZE_CVehicle__AddWheelDirtAndWater 0x6
static const unsigned int RETURN_CVehicle__AddWheelDirtAndWater = 0x6D2D56;
Expand All @@ -287,6 +300,7 @@ static void _declspec(naked) HOOK_CVehicle__AddWheelDirtAndWater()
}
}

// Fixes excessive smoke trail particle spawning from stuntplanes and cropdusters on high FPS.
#define HOOKPOS_CPlane__PreRender 0x6CA937
#define HOOKSIZE_CPlane__PreRender 0x6
static const unsigned int RETURN_CPlane__PreRender = 0x6CA93D;
Expand All @@ -306,6 +320,7 @@ static void _declspec(naked) HOOK_CPlane__PreRender()
}
}

// Fixes increased frequency of water cannon pushing peds on high FPS.
#define HOOKPOS_CWaterCannon__Update_OncePerFrame_PushPedFix 0x72A37B
#define HOOKSIZE_CWaterCannon__Update_OncePerFrame_PushPedFix 0x6
static const unsigned int RETURN_CWaterCannon__Update_OncePerFrame_PushPedFix = 0x72A381;
Expand All @@ -325,6 +340,7 @@ static void _declspec(naked) HOOK_CWaterCannon__Update_OncePerFrame_PushPedFix()
}
}

// Fixes excessive particle spawning from water cannons on high FPS.
#define HOOKPOS_CWaterCannon__Render_FxFix 0x729430
#define HOOKSIZE_CWaterCannon__Render_FxFix 0x7
static const unsigned int RETURN_CWaterCannon__Render_FxFix = 0x729440;
Expand All @@ -344,6 +360,7 @@ static void _declspec(naked) HOOK_CWaterCannon__Render_FxFix()
}
}

// Fixes excessive particle spawning with setPedHeadless on high FPS.
#define HOOKPOS_CPed__PreRenderAfterTest 0x5E7181
#define HOOKSIZE_CPed__PreRenderAfterTest 0x6
static const unsigned int RETURN_CPed__PreRenderAfterTest = 0x5E7187;
Expand All @@ -363,6 +380,7 @@ static void _declspec(naked) HOOK_CPed__PreRenderAfterTest()
}
}

// Fixes excessive particle spawning from boats on high FPS.
#define HOOKPOS_cBuoyancy__AddSplashParticles 0x6C34E0
#define HOOKSIZE_cBuoyancy__AddSplashParticles 0x6
static const unsigned int RETURN_cBuoyancy__AddSplashParticles = 0x6C34E6;
Expand All @@ -381,6 +399,7 @@ static void _declspec(naked) HOOK_cBuoyancy__AddSplashParticles()
}
}

// Fixes excessive weather particle spawning on high FPS.
#define HOOKPOS_CWeather__AddRain 0x72AAA8
#define HOOKSIZE_CWeather__AddRain 0x6
static const unsigned int RETURN_CWeather__AddRain = 0x72AAAE;
Expand All @@ -401,6 +420,7 @@ static void _declspec(naked) HOOK_CWeather__AddRain()
}
}

// Fixes excessive damage particle spawning from airplanes on high FPS.
#define HOOKPOS_CPlane__ProcessFlyingCarStuff 0x6CBE4B
#define HOOKSIZE_CPlane__ProcessFlyingCarStuff 0x6
static const unsigned int RETURN_CPlane__ProcessFlyingCarStuff = 0x6CBE51;
Expand All @@ -420,6 +440,7 @@ static void _declspec(naked) HOOK_CPlane__ProcessFlyingCarStuff()
}
}

// Fixes excessive spawning of sand and water particles from vehicles on high FPS.
#define HOOKPOS_CAutomobile__UpdateWheelMatrix 0x6AA78A
#define HOOKSIZE_CAutomobile__UpdateWheelMatrix 0x5
static const unsigned int RETURN_CAutomobile__UpdateWheelMatrix = 0x6AA78F;
Expand All @@ -439,6 +460,7 @@ static void _declspec(naked) HOOK_CAutomobile__UpdateWheelMatrix()
}
}

// Fixes excessive particle spawning from boats on high FPS.
#define HOOKPOS_CVehicle__DoBoatSplashes 0x6DD130
#define HOOKSIZE_CVehicle__DoBoatSplashes 0x6
static const unsigned int RETURN_CVehicle__DoBoatSplashes = 0x6DD136;
Expand All @@ -457,6 +479,7 @@ static void _declspec(naked) HOOK_CVehicle__DoBoatSplashes()
}
}

// Fixes excessive rain particle spawning on vehicles on high FPS.
#define HOOKPOS_CVehicle__AddWaterSplashParticles 0x6DDF60
#define HOOKSIZE_CVehicle__AddWaterSplashParticles 0x6
static const unsigned int RETURN_CVehicle__AddWaterSplashParticles = 0x6DDF66;
Expand All @@ -475,6 +498,7 @@ static void _declspec(naked) HOOK_CVehicle__AddWaterSplashParticles()
}
}

// Fixes excessive particle spawning from airplanes when damaged on high FPS.
#define HOOKPOS_CPlane__ProcessControl 0x6C939A
#define HOOKSIZE_CPlane__ProcessControl 0x5
static const unsigned int RETURN_CPlane__ProcessControl = 0x6C939F;
Expand All @@ -495,6 +519,7 @@ static void _declspec(naked) HOOK_CPlane__ProcessControl()
}
}

// Fixes excessive exhaust particle spawning from vehicles on high FPS.
#define HOOKPOS_CVehicle__AddExhaustParticles 0x6DE240
#define HOOKSIZE_CVehicle__AddExhaustParticles 0x6
static const unsigned int RETURN_CVehicle__AddExhaustParticles = 0x6DE246;
Expand All @@ -513,6 +538,7 @@ static void _declspec(naked) HOOK_CVehicle__AddExhaustParticles()
}
}

// Fixes excessive particle spawning while swimming on high FPS.
#define HOOKPOS_CTaskSimpleSwim__ProcessEffects 0x68AD3B
#define HOOKSIZE_CTaskSimpleSwim__ProcessEffects 0x6
static const unsigned int RETURN_CTaskSimpleSwim__ProcessEffects = 0x68AD41;
Expand All @@ -533,6 +559,7 @@ static void _declspec(naked) HOOK_CTaskSimpleSwim__ProcessEffects()
}
}

// Fixes excessive particle spawning while swimming on high FPS.
#define HOOKPOS_CTaskSimpleSwim__ProcessEffectsBubbleFix 0x68AC31
#define HOOKSIZE_CTaskSimpleSwim__ProcessEffectsBubbleFix 0x7
static const unsigned int RETURN_CTaskSimpleSwim__ProcessEffectsBubbleFix = 0x68AC38;
Expand Down Expand Up @@ -563,9 +590,11 @@ void CMultiplayerSA::InitHooks_FrameRateFixes()
EZHookInstall(CFallingGlassPane__Update_B);
EZHookInstall(CFallingGlassPane__Update_C);

// Fixes slow camera movement towards the back of the vehicle on high FPS.
// CCam::Process_FollowCar_SA
MemSet((void*)0x524FD7, 0x90, 0x1B);

// Fixes slow boat movement on high FPS.
// CVehicle::ProcessBoatControl
MemPut(0x6DC23F, &kOriginalTimeStep);

Expand Down

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