- Fixed: P_CheckSwitchRange accessed invalid memory when testing a one-sided

line.
- Fixed: P_SpawnPuff assumed that all melee attacks have the same range
  (MELEERANGE) and didn't set the puff to its melee state if the range
  was different. Even worse, it checked a global variable for this so
  the behavior was undefined when P_SpawnPuff was called from anywhere
  else but P_LineAttack. To reduce the amount of parameters I combined
  this information with the hitthing and temporary parameters into one
  flags parameter. Also changed P_LineAttack so that it gets passed
  an additional parameter that specifies whether the attack is a melee
  attack or not and set this to true in all calls that are to be considered
  melee attacks. I couldn't use the damage type because A_CustomPunch
  and A_CustomMeleeAttack allow passing any damage type they want.
- Added a sprite option as an alternative of particles for FX_ROCKET 
  and FX_GRENADE.


SVN r879 (trunk)

src/p_setup.cpp

@@ -60,7 +60,7 @@
 #include "p_setup.h"
 #include "r_translate.h"
 
-extern void P_SpawnMapThing (mapthing2_t *mthing, int position);
+extern AActor *P_SpawnMapThing (mapthing2_t *mthing, int position);
 extern bool P_LoadBuildMap (BYTE *mapdata, size_t len, mapthing2_t **things, int *numthings);
 
 extern void P_LoadTranslator(const char *lump);