add hl1,portal,dod source code

game/client/hl1/hl1_fx_impacts.cpp

@@ -0,0 +1,34 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Game-specific impact effect hooks
+//
+//=============================================================================//
+#include "cbase.h"
+#include "fx_impact.h"
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Handle weapon impacts
+//-----------------------------------------------------------------------------
+void ImpactCallback( const CEffectData &data )
+{
+	trace_t tr;
+	Vector vecOrigin, vecStart, vecShotDir;
+	int iMaterial, iDamageType, iHitbox;
+	short nSurfaceProp;
+	C_BaseEntity *pEntity = ParseImpactData( data, &vecOrigin, &vecStart, &vecShotDir, nSurfaceProp, iMaterial, iDamageType, iHitbox );
+
+	if ( !pEntity )
+		return;
+
+	// If we hit, perform our custom effects and play the sound
+	if ( Impact( vecOrigin, vecStart, iMaterial, iDamageType, iHitbox, pEntity, tr ) )
+	{
+		// Check for custom effects based on the Decal index
+		PerformCustomEffects( vecOrigin, tr, vecShotDir, iMaterial, 1.0 );
+	}
+
+	PlayImpactSound( pEntity, tr, vecOrigin, nSurfaceProp );
+}
+
+DECLARE_CLIENT_EFFECT( "Impact", ImpactCallback );