基础的Save和Load功能

在GUI下创建新的文件夹pause_menu

  • 创建新的文件夹以及场景和脚本，名称都为pause_menu
    • 创建一些节点来描述页面
    • Process下的mode要选择Always
  • 将pause_menu场景加载到Autoload中
  • 编写pause_menu.gd代码 
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    extends CanvasLayer

    @onready var button_save: Button = $VBoxContainer/Button_Save
    @onready var button_load: Button = $VBoxContainer/Button_Load

    var is_paused: bool = false

    func _ready() -> void:
    	hide_pause_menu()
    	button_load.pressed.connect(_on_load_pressed)
    	button_save.pressed.connect(_on_save_pressed)
    	pass
    	
    func _unhandled_input(event: InputEvent) -> void:
    	if event.is_action_pressed("pause"):
    		if is_paused == false:
    			show_pause_menu()
    			pass
    		else:
    			hide_pause_menu()
    			pass
    		get_viewport().set_input_as_handled()

    func show_pause_menu():
    	get_tree().paused = true
    	visible = true
    	is_paused = true
    	button_save.grab_focus()
    	pass

    func hide_pause_menu():
    	get_tree().paused = false
    	visible = false
    	is_paused = false
    	pass
    	
    func _on_save_pressed() -> void:
    	if is_paused == false:
    		return
    	SaveManager.save_game()
    	hide_pause_menu()
    	pass
    	
    func _on_load_pressed() -> void:
    	if is_paused == false:
    		return
    	SaveManager.load_game()
    	hide_pause_menu()
    	pass

  • 创建一个全局的save_manager 
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    extends Node

    const SAVE_PATH = "user://"

    signal game_loaded
    signal game_saved

    var current_save: Dictionary = {
    	scene_path = "",
    	player = {
    		hp = 1,
    		max_hp = 1,
    		pos_x = 0,
    		pos_y = 0
    	},
    	items = [],
    	persistence = [],
    	quests = []
    }

    func save_game() -> void:
    	update_player_data()
    	update_scene_path()
    	var file := FileAccess.open(SAVE_PATH + "save.sav", FileAccess.WRITE)
    	var save_json = JSON.stringify(current_save)
    	file.store_line(save_json)
    	game_saved.emit()
    	pass
    	
    func load_game() -> void:
    	var file := FileAccess.open(SAVE_PATH + "save.sav", FileAccess.READ)
    	var json := JSON.new()
    	json.parse(file.get_line())
    	var save_dict: Dictionary = json.get_data() as Dictionary
    	current_save = save_dict
    	
    	LevelManager.load_new_level(current_save.scene_path, "", Vector2.ZERO)
    	
    	await LevelManager.LevelLoadStarted
    	
    	PlayerManager.set_player_position(Vector2(current_save.player.pos_x,current_save.player.pos_y))
    	PlayerManager.set_health(current_save.player.hp, current_save.player.max_hp)
    	
    	await LevelManager.LevelLoaded
    	pass

    func update_player_data() -> void:
    	var p: Player = PlayerManager.player
    	current_save.player.hp = p.hp
    	current_save.player.max_hp = p.max_hp
    	current_save.player.pos_x = p.global_position.x
    	current_save.player.pos_y = p.global_position.y
    	pass
    	
    func update_scene_path() -> void:
    	var p: String = ""
    	for c in get_tree().root.get_children():
    		if c is Level:
    			p = c.scene_file_path
    	current_save.scene_path = p
    	pass
    extends Node

    const SAVE_PATH = "user://"

    signal game_loaded
    signal game_saved

    var current_save: Dictionary = {
    	scene_path = "",
    	player = {
    		hp = 1,
    		max_hp = 1,
    		pos_x = 0,
    		pos_y = 0
    	},
    	items = [],
    	persistence = [],
    	quests = []
    }

    func save_game() -> void:
    	update_player_data()
    	update_scene_path()
    	var file := FileAccess.open(SAVE_PATH + "save.sav", FileAccess.WRITE)
    	var save_json = JSON.stringify(current_save)
    	file.store_line(save_json)
    	game_saved.emit()
    	pass
    	
    func load_game() -> void:
    	var file := FileAccess.open(SAVE_PATH + "save.sav", FileAccess.READ)
    	var json := JSON.new()
    	json.parse(file.get_line())
    	var save_dict: Dictionary = json.get_data() as Dictionary
    	current_save = save_dict
    	
    	LevelManager.load_new_level(current_save.scene_path, "", Vector2.ZERO)
    	
    	await LevelManager.LevelLoadStarted
    	
    	PlayerManager.set_player_position(Vector2(current_save.player.pos_x,current_save.player.pos_y))
    	PlayerManager.set_health(current_save.player.hp, current_save.player.max_hp)
    	
    	await LevelManager.LevelLoaded
    	pass

    func update_player_data() -> void:
    	var p: Player = PlayerManager.player
    	current_save.player.hp = p.hp
    	current_save.player.max_hp = p.max_hp
    	current_save.player.pos_x = p.global_position.x
    	current_save.player.pos_y = p.global_position.y
    	pass
    	
    func update_scene_path() -> void:
    	var p: String = ""
    	for c in get_tree().root.get_children():
    		if c is Level:
    			p = c.scene_file_path
    	current_save.scene_path = p
    	pass

鼠标问题

  • 由于playerHud层在保存层上方，所以鼠标没有办法直接点击到按钮，如果需要的话可以将PlayerHud层的Mouse->Filter设置乘Ignore