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34 lines
1.1 KiB
GDScript
34 lines
1.1 KiB
GDScript
extends Node
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class_name PlaceableAreaChecker
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## Layers to consider when checking overlap with [PhysicBody2D].
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##
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## Ignored during the actual collision check, just used to expand it in the Ghost's initialization phase.
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@export_flags_2d_physics var overlap_mask: int
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## The [Area2D] this script should act on.
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@onready var target: Area2D = get_parent()
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## What the [target] object is currently overlapping with.
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var is_overlapping_with: PlaceableArea = null
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## Get the first [PlaceableArea] overlapping the [target].
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func get_first_overlapping_placeable_area() -> PlaceableArea:
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for area in target.get_overlapping_areas():
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if area is PlaceableArea:
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return area
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return null
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## Emitted when the value of [is_overlapping_with] changes because of [_update_is_overlapping_with].
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signal overlap_changing(to: PlaceableArea)
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func update_is_overlapping_with() -> void:
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var current_overlap = get_first_overlapping_placeable_area()
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if current_overlap != is_overlapping_with:
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print("[PlaceableAreaChecker] Now overlapping with: ", current_overlap)
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overlap_changing.emit(current_overlap)
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is_overlapping_with = current_overlap
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