Rework check for fight-restart option

missilewars-plugin/src/main/java/de/butzlabben/missilewars/game/Game.java

@@ -202,7 +202,7 @@ public class Game {
 
         Logger.DEBUG.log("Making game ready");
         ++fights;
-        if (fights >= Config.getFightRestart()) restart = true;
+        checkFightRestart();
 
         FightStats.checkTables();
         Logger.DEBUG.log("Fights: " + fights);
@@ -210,6 +210,12 @@ public class Game {
         ready = true;
     }
 
+    private void checkFightRestart() {
+        if ((Config.getFightRestart() == -1) || (Config.getFightRestart() == 0)) return;
+
+        if (fights >= Config.getFightRestart()) restart = true;
+    }
+
     private void updateGameListener(GameBoundListener newListener) {
         if (listener != null) HandlerList.unregisterAll(listener);