Added sv_norecoil, sv_noreload, and sv_nooverheat cheats

- sv_norecoil really just prevents the waittime between firing bullets
- sv_noreload gives you infinite ammo (so you don't have to keep spamming 'give all' in the console)
- sv_nooverheat prevents your weapon from being overheated.

These all see a bit buggy but they work. Firing rockets with sv_norecoil enabled will make for some interesing
game behavior. There's too many entities for the engine to handle and I haven't figured out how to increase the
entity limit. Same will happen with any automatic weapon (the gattling cannon especially). I have changed
the entity spawning code to thwart the crashing but it doesn't work well (things like doors disappear or don't work
right once you fire 3000 rockets).

include/game/q_shared.h

@@ -1025,7 +1025,7 @@ typedef enum
 // also be in this range
 #define ENTITYNUM_NONE      ( MAX_GENTITIES - 1 )
 #define ENTITYNUM_WORLD     ( MAX_GENTITIES - 2 )
-#define ENTITYNUM_MAX_NORMAL    ( MAX_GENTITIES - 2 )
+#define ENTITYNUM_MAX_NORMAL    ( (MAX_GENTITIES) - 2 )
 
 
 #define MAX_MODELS          256     // these are sent over the net as 8 bits

src/game/bg_pmove.c

@@ -2868,7 +2868,7 @@ void PM_CheckForReload(int weapon)
 	ammoWeap = BG_FindAmmoForWeapon(weapon);
 
 	// Added infinite clips cheat - Justasic
-	cvar_t *ammoCheat = Cvar_Get("sv_infiniteclips", "0", CVAR_CHEAT);
+	cvar_t *ammoCheat = Cvar_Get("sv_noreload", "0", CVAR_CHEAT);
 	// Set to max clip size - Justasic
 	if (ammoCheat->integer)
 		pm->ps->ammoclip[clipWeap] = ammoTable[weapon].maxclip;
@@ -4149,6 +4149,10 @@ static void PM_Weapon(void)
 
 
 			aimSpreadScaleAdd = 0;
+
+			// Cheats.
+			cvar_t *recoilCheat = Cvar_Get("sv_norecoil", "0", CVAR_CHEAT);
+			cvar_t *overheatCheat = Cvar_Get("sv_nooverheat", "0", CVAR_CHEAT);
 
 			switch(pm->ps->weapon)
 			{
@@ -4315,6 +4319,7 @@ static void PM_Weapon(void)
 
 // the weapon can overheat, and it's hot
 						if((pm->ps->aiChar != AICHAR_PROTOSOLDIER) &&
+							(overheatCheat->integer == 0) &&
 						        (pm->ps->aiChar != AICHAR_SUPERSOLDIER) &&
 						        (ammoTable[pm->ps->weapon].maxHeat && pm->ps->weapHeat[pm->ps->weapon]))
 						{
@@ -4345,7 +4350,10 @@ static void PM_Weapon(void)
 
 						pm->ps->aimSpreadScale = (int)(pm->ps->aimSpreadScaleFloat);
 
-						pm->ps->weaponTime += addTime;
+						if (!recoilCheat->integer)
+							pm->ps->weaponTime += addTime;
+						else
+							pm->ps->weaponTime = 0;
 
 						PM_SwitchIfEmpty();
 					}

src/game/g_utils.c

@@ -485,6 +485,7 @@ instead of being removed and recreated, which can cause interpolated
 angles and bad trails.
 =================
 */
+void G_FreeEntity(gentity_t *ed);
 gentity_t *G_Spawn(void)
 {
 	int i, force;
@@ -499,7 +500,7 @@ gentity_t *G_Spawn(void)
 		// override the normal minimum times before use
 		e = &g_entities[MAX_CLIENTS];
 
-		for(i = MAX_CLIENTS ; i < level.num_entities ; i++, e++)
+		for(i = MAX_CLIENTS; i < level.num_entities; i++, e++)
 		{
 			if(e->inuse)
 			{
@@ -526,12 +527,26 @@ gentity_t *G_Spawn(void)
 
 	if(i == ENTITYNUM_MAX_NORMAL)
 	{
+		int currentEntities = level.num_entities;
 		for(i = 0; i < MAX_GENTITIES; i++)
 		{
 			G_Printf("%4i: %s\n", i, g_entities[i].classname);
+
+			// Since our sv_norecoil causes a lot of entities to spawn,
+			// we need to free some of them while they're being made.
+			// the entity limit is too low but it's too hard to raise it.
+			// The game allows 1024 entities max.
+			// this especially happens with the rocket launcher
+			if (!Q_stricmp(g_entities[i].classname, "tempEntity") ||
+				!Q_stricmp(g_entities[i].classname, "rocket"))
+			{
+				G_FreeEntity(&g_entities[i]);
+				level.num_entities--;
+			}
 		}
 
-		G_Error("G_Spawn: no free entities");
+		if (level.num_entities == currentEntities)
+			G_Error("G_Spawn: no free entities");
 	}
 
 	// open up a new slot