93 lines
2.6 KiB
GDScript
93 lines
2.6 KiB
GDScript
@tool
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class_name PlaygroundLevel
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extends Area2D
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@export var show_bounds: bool = true
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@export var bounds_color: Color = Color.RED
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@export var bounds_width: float = 2.0
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@export var editor_only: bool = true
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signal entered(level: PlaygroundLevel)
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signal exited(level: PlaygroundLevel)
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var tilemap_layer: TileMapLayer
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var tilemap_bounds: Rect2
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var last_used_cells_count: int = -1
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func _enter_tree() -> void:
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if Engine.is_editor_hint():
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set_process_mode(Node.PROCESS_MODE_PAUSABLE)
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#call_deferred("_ready")
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func _ready() -> void:
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tilemap_layer = $TileMapLayer
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update_bounds()
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update_collision_shape()
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func update_collision_shape() -> void:
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var collision_shape = $CollisionShape2D
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# 确保 Shape 是唯一的，防止多个关卡实例共享同一个资源
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if collision_shape.shape and !collision_shape.shape.is_local_to_scene():
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collision_shape.shape = collision_shape.shape.duplicate()
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collision_shape.shape.size = tilemap_bounds.size
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# bounds 已经是局部坐标，直接使用中心点即可，不需要减去 position
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collision_shape.position = tilemap_bounds.get_center()
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print("[", name, "] Collision shape updated: size=", tilemap_bounds.size, " position=", collision_shape.position)
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func _process(_delta) -> void:
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if update_bounds():
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update_collision_shape()
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if enable_debug_draw():
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queue_redraw()
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func update_bounds() -> bool:
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var used_rect: Rect2i = tilemap_layer.get_used_rect()
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var used_cells_count = tilemap_layer.get_used_cells().size()
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last_used_cells_count = used_cells_count
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var tile_size = tilemap_layer.tile_set.tile_size
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var position_offset = tilemap_layer.position
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var bounds = Rect2(
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position_offset + Vector2(used_rect.position * tile_size),
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used_rect.size * tile_size
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)
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var changed = bounds != tilemap_bounds
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tilemap_bounds = bounds
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if changed:
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print("[", name, "] Bounds updated: ", bounds)
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return changed
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func enable_debug_draw() -> bool:
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return show_bounds && (!editor_only || Engine.is_editor_hint())
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func _draw() -> void:
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if enable_debug_draw():
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draw_rect(tilemap_bounds, bounds_color, false, bounds_width)
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func get_global_bounds() -> Rect2:
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var global_bounds = tilemap_bounds
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global_bounds.position += global_position
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return global_bounds
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func _on_area_entered(area: Area2D) -> void:
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if area.name != "Player":
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return
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print("[", name, "] Player entered level bounds!")
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print(" - Area: ", area.name)
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entered.emit(self)
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func _on_area_exited(area: Area2D) -> void:
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if area.name != "Player":
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return
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print("[", name, "] Player exited level bounds!")
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print(" - Area: ", area.name)
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exited.emit(self)
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