Added main menu

game.gd

@@ -0,0 +1,31 @@
+extends Node
+
+var _current_scene: Node
+
+
+func _ready() -> void:
+    _show_main_menu()
+
+
+func _show_main_menu() -> void:
+    if _current_scene != null:
+        _current_scene.queue_free()
+    
+    var scene : Node = load("res://title_screen.tscn").instantiate()
+    add_child(scene)
+    scene.continue_game.connect(_continue_game)
+    scene.new_game.connect(_new_game)
+    scene.quit_game.connect(_quit)
+    _current_scene = scene
+    
+
+func _continue_game() -> void:
+    print("continue_game")
+    
+
+func _new_game() -> void:
+    print("new_game")
+    
+
+func _quit() -> void:
+    get_tree().quit()