63 lines
1.6 KiB
GDScript
63 lines
1.6 KiB
GDScript
''' 此Resource定义了一系列的Prop可能需要的预设的简单Effect，如果有更复杂的需求，应该重写State的OnEnter
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'''
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@tool
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@icon("uid://cw1yyc4oeph85")
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extends Resource
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class_name ReedPropEffect
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enum TargetType {
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OWNER,
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NODE_PATH
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}
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enum EffectType {
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SET_VALUE,
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CALL_FUNC
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}
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##作用目标的类型，默认为PropComp的拥有者
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@export var target_type: TargetType = TargetType.OWNER
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##如果选择了NodePath，则会读取此字段，默认不读取
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@export var target_path: NodePath
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##作用的具体效果类别，默认为设置某个数值
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@export var effect_type: EffectType = EffectType.SET_VALUE
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## SetValue 用
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@export var property_name: StringName
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@export var value: Variant
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## CallFunc 用
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@export var func_name: StringName
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@export var func_args: Array[Variant] = []
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## 是否在退出 state 时恢复
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@export var restore_on_exit: bool = false
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## 运行时缓存
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var _cached_old_value: Variant
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##应用效果
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func apply(owner: Node, prop_comp: Node, ctx: Dictionary) -> void:
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var target := _resolve_target(owner, prop_comp)
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if target == null:
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return
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match effect_type:
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EffectType.SET_VALUE:
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# 你也可以加 has_property 检查，但 Godot 没有统一 API，这里先直接 set
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target.set(property_name, value)
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EffectType.CALL_FUNC:
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if target.has_method(func_name):
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target.callv(func_name, func_args)
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##获取到组件或对象
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func _resolve_target(owner: Node, prop_comp: Node) -> Object:
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match target_type:
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TargetType.OWNER:
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return owner
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TargetType.NODE_PATH:
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if owner:
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return owner.get_node_or_null(target_path)
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return null
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