FREE PLAY: Make a little more consistent

- Cooperative gametypes do not count as FREE PLAY
- Sealed Stars count as a Cooperative gametype
- Fix Battle Fullscreen having had inverted presence of FREE PLAY since bosses were added

src/k_hud.c

@@ -4294,6 +4294,7 @@ static void K_drawBattleFullscreen(void)
 	}
 
 	// FREE PLAY?
+	if (K_Cooperative() == false)
 	{
 		UINT8 i;
 
@@ -4306,7 +4307,7 @@ static void K_drawBattleFullscreen(void)
 				break;
 		}
 
-		if (i != MAXPLAYERS)
+		if (i == MAXPLAYERS)
 			K_drawKartFreePlay();
 	}
 }
@@ -5180,7 +5181,7 @@ void K_drawKartHUD(void)
 		V_DrawScaledPatch(BASEVIDWIDTH/2 - (SHORT(kp_yougotem->width)/2), 32, V_HUDTRANS, kp_yougotem);
 
 	// Draw FREE PLAY.
-	if (islonesome)
+	if (islonesome && K_Cooperative() == false)
 		K_drawKartFreePlay();
 
 	if (r_splitscreen == 0 && (stplyr->pflags & PF_WRONGWAY) && ((leveltime / 8) & 1))

src/k_kart.c

@@ -11699,6 +11699,11 @@ boolean K_Cooperative(void)
 		return true;
 	}
 
+	if (specialstageinfo.valid)
+	{
+		return true;
+	}
+
 	return false;
 }
 

src/m_cond.c

@@ -628,6 +628,10 @@ static boolean M_NotFreePlay(player_t *player)
 {
 	UINT8 i;
 
+	// Rounds that permit Cooperative play can be played by yourself without being FREE PLAY.
+	if (K_Cooperative())
+		return true;
+
 	for (i = 0; i < MAXPLAYERS; i++)
 	{
 		if (playeringame[i] == false || players[i].spectator == true)