fix menu restart time on keypress

scripts/gamestate.gd

@@ -9,11 +9,16 @@ var userinput_prefix="inputP"
 var time_elapsed=0
 
 func addPlayer(key:int):
+	#return -1 if player already exists with this key. else return id of player added
 	if not getPlayerkeys().has(key):
 		#playerkeys.append(key)
-		players.append(Player.new(key,len(players)))
+		var addID=len(players)
+		players.append(Player.new(key,addID))
 		#print("Added Key"+str(key))
 		#print("List:"+str(getPlayerkeys()))
+		return addID
+	else:
+		return -1
 		
 func removeAllPlayers():
 	players=[]

scripts/menu.gd

@@ -26,14 +26,15 @@ func _unhandled_key_input(event: InputEvent) -> void:
 	if event is InputEventKey:
 		if event.pressed:
 			#print("Key keycode:"+str(event.keycode))
-			Gamestate.addPlayer(event.keycode)
+			var addedID=Gamestate.addPlayer(event.keycode)
 			
 			$MenuDisplay.update_playerlist(Gamestate.players)
 			
-			if len(Gamestate.getPlayerkeys())>=1: 
-				$Timer.start()
-			else:
-				$Timer.stop()
+			if addedID!=-1:
+				if len(Gamestate.getPlayerkeys())>=1: 
+					$Timer.start()
+				else:
+					$Timer.stop()