Add 'explosionfix' cvar to control explosions going through walls sometimes. Related issue: https://github.com/ValveSoftware/halflife/issues/3244 (#252)

dlls/game.cpp

@@ -35,6 +35,7 @@ cvar_t weaponstay	= { "mp_weaponstay","0", FCVAR_SERVER };
 cvar_t selfgauss	= { "selfgauss", "1", FCVAR_SERVER };
 cvar_t chargerfix	= { "chargerfix", "0", FCVAR_SERVER };
 cvar_t satchelfix	= { "satchelfix", "0", FCVAR_SERVER };
+cvar_t explosionfix	= { "explosionfix", "0", FCVAR_SERVER };
 cvar_t monsteryawspeedfix	= { "monsteryawspeedfix", "1", FCVAR_SERVER };
 cvar_t forcerespawn	= { "mp_forcerespawn","1", FCVAR_SERVER };
 cvar_t flashlight	= { "mp_flashlight","0", FCVAR_SERVER };
@@ -486,6 +487,7 @@ void GameDLLInit( void )
 	CVAR_REGISTER( &selfgauss );
 	CVAR_REGISTER( &chargerfix );
 	CVAR_REGISTER( &satchelfix );
+	CVAR_REGISTER( &explosionfix );
 	CVAR_REGISTER( &monsteryawspeedfix );
 	CVAR_REGISTER( &forcerespawn );
 	CVAR_REGISTER( &flashlight );

dlls/game.h

@@ -30,6 +30,7 @@ extern cvar_t weaponstay;
 extern cvar_t selfgauss;
 extern cvar_t chargerfix;
 extern cvar_t satchelfix;
+extern cvar_t explosionfix;
 extern cvar_t monsteryawspeedfix;
 extern cvar_t forcerespawn;
 extern cvar_t flashlight;

dlls/ggrenade.cpp

@@ -26,6 +26,7 @@
 #include "nodes.h"
 #include "soundent.h"
 #include "decals.h"
+#include "game.h"
 
 //===================grenade
 
@@ -59,6 +60,9 @@ void CGrenade::Explode( TraceResult *pTrace, int bitsDamageType )
 	// Pull out of the wall a bit
 	if( pTrace->flFraction != 1.0f )
 	{
+		if (explosionfix.value)
+			pev->origin = pTrace->vecEndPos + ( pTrace->vecPlaneNormal * 0.6f );
+		else
 			pev->origin = pTrace->vecEndPos + ( pTrace->vecPlaneNormal * ( pev->dmg - 24 ) * 0.6f );
 	}