sm-exts/CollisionHook
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Fix hook leaks, affecting FPS over map restarts

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(cherry picked from commit 567a221693b0f6ae223950847607e3a007beefa8)
This commit is contained in:
Adrianilloo 2022-12-18 18:19:19 +01:00 committed by Ryan Stecker
parent 3930ca47df
commit c2363cee43
1 changed files with 20 additions and 7 deletions
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27
src/extension.cpp
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@ -33,6 +33,8 @@ IPhysics *g_pPhysics = NULL;
IForward *g_pCollisionFwd = NULL;
IForward *g_pPassFwd = NULL;
int gSetCollisionSolverHookId, gShouldCollideHookId;
DETOUR_DECL_STATIC2( PassServerEntityFilterFunc, bool, const IHandleEntity *, pTouch, const IHandleEntity *, pPass )
{
@ -120,16 +122,19 @@ bool CollisionHook::SDK_OnMetamodLoad( ISmmAPI *ismm, char *error, size_t maxlen
{
GET_V_IFACE_CURRENT( GetPhysicsFactory, g_pPhysics, IPhysics, VPHYSICS_INTERFACE_VERSION );
SH_ADD_HOOK( IPhysics, CreateEnvironment, g_pPhysics, SH_MEMBER( this, &CollisionHook::CreateEnvironment ), false );
SH_ADD_HOOK( IPhysics, CreateEnvironment, g_pPhysics, SH_MEMBER( this, &CollisionHook::CreateEnvironment ), true );
return true;
}
bool CollisionHook::SDK_OnMetamodUnload(char *error, size_t maxlength)
{
SH_REMOVE_HOOK( IPhysics, CreateEnvironment, g_pPhysics, SH_MEMBER( this, &CollisionHook::CreateEnvironment ), false );
SH_REMOVE_HOOK( IPhysics, CreateEnvironment, g_pPhysics, SH_MEMBER( this, &CollisionHook::CreateEnvironment ), true );
SH_REMOVE_HOOK_ID( gSetCollisionSolverHookId );
SH_REMOVE_HOOK_ID( gShouldCollideHookId );
g_pPhysics = NULL;
gSetCollisionSolverHookId = gShouldCollideHookId = 0;
return true;
}
@ -140,13 +145,17 @@ IPhysicsEnvironment *CollisionHook::CreateEnvironment()
// in order to hook IPhysicsCollisionSolver::ShouldCollide, we need to know when a solver is installed
// in order to hook any installed solvers, we need to hook any created physics environments
IPhysicsEnvironment *pEnvironment = SH_CALL( g_pPhysics, &IPhysics::CreateEnvironment )();
IPhysicsEnvironment *pEnvironment = META_RESULT_ORIG_RET( IPhysicsEnvironment * );
if ( !pEnvironment )
RETURN_META_VALUE( MRES_SUPERCEDE, pEnvironment ); // just in case
// hook so we know when a solver is installed
SH_ADD_HOOK( IPhysicsEnvironment, SetCollisionSolver, pEnvironment, SH_MEMBER( this, &CollisionHook::SetCollisionSolver ), false );
// Hook globally so we know when any solver is installed
gSetCollisionSolverHookId = SH_ADD_VPHOOK( IPhysicsEnvironment, SetCollisionSolver, pEnvironment,
SH_MEMBER( this, &CollisionHook::SetCollisionSolver ), true );
SH_REMOVE_HOOK( IPhysics, CreateEnvironment, g_pPhysics,
SH_MEMBER( this, &CollisionHook::CreateEnvironment ), true ); // No longer needed
RETURN_META_VALUE( MRES_SUPERCEDE, pEnvironment );
}
@ -156,8 +165,12 @@ void CollisionHook::SetCollisionSolver( IPhysicsCollisionSolver *pSolver )
if ( !pSolver )
RETURN_META( MRES_IGNORED ); // this shouldn't happen, but knowing valve...
// the game is installing a solver, hook the func we want
SH_ADD_HOOK( IPhysicsCollisionSolver, ShouldCollide, pSolver, SH_MEMBER( this, &CollisionHook::VPhysics_ShouldCollide ), false );
// The game installed a solver, globally hook ShouldCollide
gShouldCollideHookId = SH_ADD_VPHOOK( IPhysicsCollisionSolver, ShouldCollide, pSolver,
SH_MEMBER( this, &CollisionHook::VPhysics_ShouldCollide ), false );
SH_REMOVE_HOOK_ID( gSetCollisionSolverHookId ); // No longer needed
gSetCollisionSolverHookId = 0;
RETURN_META( MRES_IGNORED );
}