feat: 创建了游戏循环管理器

scripts/autoload/GameLoopManager.gd

@@ -0,0 +1,22 @@
+extends Node
+
+var game_round: int = -1
+
+signal end_game
+
+func _ready() -> void:
+	end_game.connect(_on_end_game)
+
+func start_game() -> void:
+	game_round = 1
+
+func settle_round() -> void:
+	game_round += 1
+	if check_game_end():
+		end_game.emit()
+
+func check_game_end() -> bool:
+	return false
+
+func _on_end_game() -> void:
+	game_round = -1