152 lines
4.5 KiB
GDScript
152 lines
4.5 KiB
GDScript
@tool
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@icon("uid://p0oxphym6oqg")
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'''
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此类为一个level的最小单元，其可以承载任意多的prop和act
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你可以这样理解，一个level（大关卡），带有n个小关卡，n = scene的数量
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Scene 必须带有：
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1.Act Manager
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2.复数个Prop
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其中： ActManager下，带有复数个Act，其主要用于记录各个Prop的不同state，当Act切换时，Prop对应的状态也会切换。
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ActManager的主要作用就是管理这些Act的切换。
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Prop可以简单的理解为场景中的非地形碰撞的，与玩家可交互的道具，AI，等。
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所有的Prop会自带一个PropComponent，其核心功能是负责管理Prop自身的state和state的切换
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举例：一个门，从State1 -> State2，state1是关闭状态，state2是打开状态，那么：
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1. 我们在State1中定义，门是关的，State2中定义，门是开的。简单的实现比如我们去设置门的坐标
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2. 我们会做一个State1 -> State2的流转函数，其定义了，State1->State2的具体行为，比如，播放一个门打开的动画。
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对于任意的添加到Scene的Prop，如果其自身的最上层子节点集中不含有PropComponent，Scene会默认的给他发一个PropComponent
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注意，我并不推荐在Prop上直接挂载PropComponent，通过Scene来添加更为合适。
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对于Scene，Scene通过PropComponent上的ID，通过ID获取到PropComponent所挂载的组件，这也是为什么我强制要求
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PropComponent必须是处于Prop的最上层子节点集。
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'''
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class_name ReedScene extends Node2D
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## ==============================
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## Export Config
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## ==============================
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@export var props_root_path: NodePath = ^"Props"
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@export var auto_attach_prop_component := true
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@export var debug_log := true
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## ==============================
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## Internal State
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## ==============================
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var _act_manager: ActManager
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var _props_root: Node
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var _prop_map: Dictionary = {} # prop_id -> PropComponent
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## ==============================
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## Lifecycle
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## ==============================
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func _enter_tree() -> void:
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if Engine.is_editor_hint():
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_editor_auto_attach_prop_components()
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## ==============================
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## Resolve References
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## ==============================
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func _resolve_act_manager() -> void:
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_act_manager = get_node_or_null("ActManager")
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if _act_manager == null:
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push_error("[ReedScene] ActManager not found.")
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return
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func _resolve_props_root() -> void:
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_props_root = get_node_or_null(props_root_path)
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if _props_root == null:
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push_error("[ReedScene] Props root not found: %s" % props_root_path)
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## ==============================
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## Prop Collection
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## ==============================
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func _collect_props() -> void:
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_prop_map.clear()
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if _props_root == null:
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return
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for prop in _props_root.get_children():
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if not prop is Node:
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continue
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var prop_comp := _find_prop_component(prop)
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if prop_comp == null:
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continue
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var prop_id := prop_comp.prop_id
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if prop_id < 0:
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push_warning("[ReedScene] Prop has invaild ID: %s" % prop.name)
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continue
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if _prop_map.has(prop_id):
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push_error("[ReedScene] Duplicate Prop ID: %s" % prop_id)
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continue
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_prop_map[prop_id] = prop_comp
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if debug_log:
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print("[ReedScene] Registered Prop:", prop_id)
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func _find_prop_component(prop: Node) -> PropComponent:
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for child in prop.get_children():
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if child is PropComponent:
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return child
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return null
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## ==============================
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## Act Binding
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## ==============================
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func _bind_act_events() -> void:
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if _act_manager == null:
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return
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_act_manager.act_changed.connect(_on_act_changed)
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func _on_act_changed(from_act: StringName, to_act: StringName) -> void:
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if debug_log:
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print("[ReedScene] Act changed:", from_act, "->", to_act)
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for prop_comp in _prop_map.values():
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prop_comp.on_act_changed(from_act, to_act)
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## ==============================
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## Editor Helpers
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## ==============================
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func _editor_auto_attach_prop_components() -> void:
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if not auto_attach_prop_component:
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return
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var props_root := get_node_or_null(props_root_path)
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if props_root == null:
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return
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for prop in props_root.get_children():
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if not prop is Node:
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continue
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if _find_prop_component(prop) != null:
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continue
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var comp := PropComponent.new()
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prop.add_child(comp)
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comp.owner = get_tree().edited_scene_root
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if debug_log:
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print("[ReedScene][Editor] Auto attached PropComponent to:", prop.name)
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func _ready() -> void:
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_resolve_act_manager()
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_resolve_props_root()
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_collect_props()
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_bind_act_events()
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