2D area for detection and physics and audio influence.
</brief_description>
<description>
2D area that detects [CollisionObject2D] nodes overlapping, entering, or exiting. Can also alter or override local physics parameters (gravity, damping) and route audio to a custom audio bus.
To give the area its shape, add a [CollisionShape2D] or a [CollisionPolygon2D] node as a [i]direct[/i] child (or add multiple such nodes as direct children) of the area.
[b]Warning:[/b] See [ConcavePolygonShape2D] for a warning about possibly unexpected behavior when using that shape for an area.
Returns a list of intersecting [Area2D]s. The overlapping area's [member CollisionObject2D.collision_layer] must be part of this area's [member CollisionObject2D.collision_mask] in order to be detected.
For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.
Returns a list of intersecting [PhysicsBody2D]s. The overlapping body's [member CollisionObject2D.collision_layer] must be part of this area's [member CollisionObject2D.collision_mask] in order to be detected.
For performance reasons (collisions are all processed at the same time) this list is modified once during the physics step, not immediately after objects are moved. Consider using signals instead.
</description>
</method>
<methodname="overlaps_area"qualifiers="const">
<returntype="bool"/>
<argumentindex="0"name="area"type="Node"/>
<description>
If [code]true[/code], the given area overlaps the Area2D.
[b]Note:[/b] The result of this test is not immediate after moving objects. For performance, the list of overlaps is updated once per frame and before the physics step. Consider using signals instead.
</description>
</method>
<methodname="overlaps_body"qualifiers="const">
<returntype="bool"/>
<argumentindex="0"name="body"type="Node"/>
<description>
If [code]true[/code], the given physics body overlaps the Area2D.
[b]Note:[/b] The result of this test is not immediate after moving objects. For performance, list of overlaps is updated once per frame and before the physics step. Consider using signals instead.
The [code]body[/code] argument can either be a [PhysicsBody2D] or a [TileMap] instance (while TileMaps are not physics bodies themselves, they register their tiles with collision shapes as a virtual physics body).
The area's gravity intensity (in pixels per second squared). This value multiplies the gravity vector. This is useful to alter the force of gravity without altering its direction.
Emitted when one of another Area2D's [Shape2D]s enters one of this Area2D's [Shape2D]s. Requires [member monitoring] to be set to [code]true[/code].
[code]area_rid[/code] the [RID] of the other Area2D's [CollisionObject2D] used by the [Physics2DServer].
[code]area[/code] the other Area2D.
[code]area_shape_index[/code] the index of the [Shape2D] of the other Area2D used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]area.shape_owner_get_owner(area_shape_index)[/code].
[code]local_shape_index[/code] the index of the [Shape2D] of this Area2D used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]self.shape_owner_get_owner(local_shape_index)[/code].
Emitted when one of another Area2D's [Shape2D]s exits one of this Area2D's [Shape2D]s. Requires [member monitoring] to be set to [code]true[/code].
[code]area_rid[/code] the [RID] of the other Area2D's [CollisionObject2D] used by the [Physics2DServer].
[code]area[/code] the other Area2D.
[code]area_shape_index[/code] the index of the [Shape2D] of the other Area2D used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]area.shape_owner_get_owner(area_shape_index)[/code].
[code]local_shape_index[/code] the index of the [Shape2D] of this Area2D used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]self.shape_owner_get_owner(local_shape_index)[/code].
</description>
</signal>
<signalname="body_entered">
<argumentindex="0"name="body"type="Node"/>
<description>
Emitted when a [PhysicsBody2D] or [TileMap] enters this Area2D. Requires [member monitoring] to be set to [code]true[/code]. [TileMap]s are detected if the [TileSet] has Collision [Shape2D]s.
[code]body[/code] the [Node], if it exists in the tree, of the other [PhysicsBody2D] or [TileMap].
</description>
</signal>
<signalname="body_exited">
<argumentindex="0"name="body"type="Node"/>
<description>
Emitted when a [PhysicsBody2D] or [TileMap] exits this Area2D. Requires [member monitoring] to be set to [code]true[/code]. [TileMap]s are detected if the [TileSet] has Collision [Shape2D]s.
[code]body[/code] the [Node], if it exists in the tree, of the other [PhysicsBody2D] or [TileMap].
Emitted when one of a [PhysicsBody2D] or [TileMap]'s [Shape2D]s enters one of this Area2D's [Shape2D]s. Requires [member monitoring] to be set to [code]true[/code]. [TileMap]s are detected if the [TileSet] has Collision [Shape2D]s.
[code]body_rid[/code] the [RID] of the [PhysicsBody2D] or [TileSet]'s [CollisionObject2D] used by the [Physics2DServer].
[code]body[/code] the [Node], if it exists in the tree, of the [PhysicsBody2D] or [TileMap].
[code]body_shape_index[/code] the index of the [Shape2D] of the [PhysicsBody2D] or [TileMap] used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]body.shape_owner_get_owner(body_shape_index)[/code].
[code]local_shape_index[/code] the index of the [Shape2D] of this Area2D used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]self.shape_owner_get_owner(local_shape_index)[/code].
Emitted when one of a [PhysicsBody2D] or [TileMap]'s [Shape2D]s exits one of this Area2D's [Shape2D]s. Requires [member monitoring] to be set to [code]true[/code]. [TileMap]s are detected if the [TileSet] has Collision [Shape2D]s.
[code]body_rid[/code] the [RID] of the [PhysicsBody2D] or [TileSet]'s [CollisionObject2D] used by the [Physics2DServer].
[code]body[/code] the [Node], if it exists in the tree, of the [PhysicsBody2D] or [TileMap].
[code]body_shape_index[/code] the index of the [Shape2D] of the [PhysicsBody2D] or [TileMap] used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]body.shape_owner_get_owner(body_shape_index)[/code].
[code]local_shape_index[/code] the index of the [Shape2D] of this Area2D used by the [Physics2DServer]. Get the [CollisionShape2D] node with [code]self.shape_owner_get_owner(local_shape_index)[/code].
