75 lines
1.8 KiB
GDScript3
75 lines
1.8 KiB
GDScript3
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@tool
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class_name SceneManager
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extends Node
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@export var MainNodes: Array[Node]
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@export var GameView: Node
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@export var TransitionNode: Node
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func _enter_tree() -> void:
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check()
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func _ready() -> void:
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if !Engine.is_editor_hint():
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add_to_group("SceneManager")
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get_tree().node_removed.connect(check)
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# =========================
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# 对外 API
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# =========================
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static func change(scene_path: String) -> void:
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var mgr := get_instance()
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if mgr:
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mgr._change(scene_path)
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else:
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push_error("SceneManager not found in scene tree")
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# =========================
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# 内部逻辑
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# =========================
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func _change(scene_path: String) -> void:
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if GameView == null:
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push_error("SceneManager: GameView is null")
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return
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# 清空旧场景
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for child in GameView.get_children():
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child.queue_free()
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# 加载新场景
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var packed: PackedScene = load(scene_path)
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if packed == null:
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push_error("Failed to load scene: %s" % scene_path)
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return
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var instance := packed.instantiate()
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GameView.add_child(instance)
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print_debug("SceneManager: Changed scene to ", scene_path)
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# =========================
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# 结构检查 / 自修复
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# =========================
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func check(node: Node = null) -> void:
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if TransitionNode == node:
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TransitionNode = null
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var tr := find_child("Transition")
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if tr != null:
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if TransitionNode == null:
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TransitionNode = tr
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else:
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if TransitionNode == null:
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var transition := Control.new()
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transition.name = "Transition"
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add_child.call_deferred(transition)
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transition.set_owner.call_deferred(self)
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TransitionNode = transition
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# =========================
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# 工具
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# =========================
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static func get_instance() -> SceneManager:
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var tree := Engine.get_main_loop() as SceneTree
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return tree.get_first_node_in_group("SceneManager") as SceneManager
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