Various changes

- Implemented CVAR for the feature
- Made the feature be disabled by strict mode and during critical play
- Made the feature activate only when the player is completely dead (i.e. both player and its mobj have health <= 0)

src/g_game.c

@@ -4760,6 +4760,8 @@ void G_BindCompVariables(void)
              false, ss_comp, wad_no, "Direct vertical aiming");
   M_BindBool("pistolstart", &default_pistolstart, &pistolstart,
              false, ss_comp, wad_no, "Pistol start");
+  M_BindBool("infight_upon_death", &infight_upon_death, NULL,
+             false, ss_comp, wad_no, "Monsters infight upon player death");
 
 #define BIND_COMP(id, v, help) \
   M_BindNum(#id, &default_comp[(id)], &comp[(id)], (v), 0, 1, ss_none, wad_yes, help)

src/mn_setup.c

@@ -2202,6 +2202,9 @@ setup_menu_t comp_settings1[] = {
     {"Emulate INTERCEPTS overflow", S_ONOFF | S_VANILLA, M_X, M_SPC,
      {"emu_intercepts"}, .action = UpdateInterceptsEmuItem},
 
+    {"Infight Upon Player Death", S_ONOFF | S_STRICT, M_X, M_SPC,
+     {"infight_upon_death"}},
+
     MI_RESET,
 
     MI_END

src/p_enemy.c

@@ -812,6 +812,8 @@ static boolean PIT_FindTarget(mobj_t *mo)
 // Returns true if a player is targeted.
 //
 
+boolean infight_upon_death;
+
 #define MONS_LOOK_RANGE (20*64*FRACUNIT)
 #define MONS_LOOK_LIMIT 64
 
@@ -866,8 +868,9 @@ static boolean P_LookForPlayers(mobj_t *actor, boolean allaround)
   player_t *player;
   int stop, stopc, c;
 
-  // Single player game and player is dead, look for monsters
-  if (!netgame && players[0].health <= 0)
+  // Casual game and player is dead, look for monsters
+  if (infight_upon_death && !critical && !strictmode
+      && players[0].health <= 0 && players[0].mo->health <= 0)
   {
     return (P_LookForMonsters_Heretic(actor));
   }

src/p_enemy.h

@@ -34,6 +34,7 @@ extern struct brain_s {         // killough 3/26/98: global state of boss brain
 } brain;
 
 extern boolean ghost_monsters;
+extern boolean infight_upon_death;
 
 #endif // __P_ENEMY__