- fixed inverted NULL pointer check in A_SetAngle.

- let COPY_AAPTR check the most common case AAPTR_DEFAULT first instead of running through all the other cases for it.

src/actorptrselect.cpp

@@ -32,6 +32,8 @@
 
 AActor *COPY_AAPTR(AActor *origin, int selector)
 {
+	if (selector == AAPTR_DEFAULT) return origin;
+
 	if (origin)
 	{
 		if (origin->player)

src/thingdef/thingdef_codeptr.cpp

@@ -4060,7 +4060,7 @@ DEFINE_ACTION_FUNCTION_PARAMS(AActor, A_SetAngle)
 	ACTION_PARAM_INT(ptr, 2);
 
 	AActor *ref = COPY_AAPTR(self, ptr);
-	if (ref != NULL)
+	if (ref == NULL)
 	{
 		ACTION_SET_RESULT(false);
 		return;