CollisionObject2D is the base class for 2D physics objects. It can hold any number of 2D collision [Shape2D]s. Each shape must be assigned to a [i]shape owner[/i]. The CollisionObject2D can have any number of shape owners. Shape owners are not nodes and do not appear in the editor, but are accessible through code using the [code]shape_owner_*[/code] methods.
[b]Note:[/b] Only collisions between objects within the same canvas ([Viewport] canvas or [CanvasLayer]) are supported. The behavior of collisions between objects in different canvases is undefined.
Accepts unhandled [InputEvent]s. [param shape_idx] is the child index of the clicked [Shape2D]. Connect to the [code]input_event[/code] signal to easily pick up these events.
Returns [code]true[/code] if collisions for the shape owner originating from this [CollisionObject2D] will not be reported to collided with [CollisionObject2D]s.
If [param enable] is [code]true[/code], collisions for the shape owner originating from this [CollisionObject2D] will not be reported to collided with [CollisionObject2D]s.
[b]Note:[/b] Object A can detect a contact with object B only if object B is in any of the layers that object A scans. See [url=$DOCS_URL/tutorials/physics/physics_introduction.html#collision-layers-and-masks]Collision layers and masks[/url] in the documentation for more information.
[b]Note:[/b] Object A can detect a contact with object B only if object B is in any of the layers that object A scans. See [url=$DOCS_URL/tutorials/physics/physics_introduction.html#collision-layers-and-masks]Collision layers and masks[/url] in the documentation for more information.
Defines the behavior in physics when [member Node.process_mode] is set to [constant Node.PROCESS_MODE_DISABLED]. See [enum DisableMode] for more details about the different modes.
If [code]true[/code], this object is pickable. A pickable object can detect the mouse pointer entering/leaving, and if the mouse is inside it, report input events. Requires at least one [member collision_layer] bit to be set.
Emitted when an input event occurs. Requires [member input_pickable] to be [code]true[/code] and at least one [member collision_layer] bit to be set. See [method _input_event] for details.
Emitted when the mouse pointer enters any of this object's shapes. Requires [member input_pickable] to be [code]true[/code] and at least one [member collision_layer] bit to be set. Note that moving between different shapes within a single [CollisionObject2D] won't cause this signal to be emitted.
[b]Note:[/b] Due to the lack of continuous collision detection, this signal may not be emitted in the expected order if the mouse moves fast enough and the [CollisionObject2D]'s area is small. This signal may also not be emitted if another [CollisionObject2D] is overlapping the [CollisionObject2D] in question.
Emitted when the mouse pointer exits all this object's shapes. Requires [member input_pickable] to be [code]true[/code] and at least one [member collision_layer] bit to be set. Note that moving between different shapes within a single [CollisionObject2D] won't cause this signal to be emitted.
[b]Note:[/b] Due to the lack of continuous collision detection, this signal may not be emitted in the expected order if the mouse moves fast enough and the [CollisionObject2D]'s area is small. This signal may also not be emitted if another [CollisionObject2D] is overlapping the [CollisionObject2D] in question.
Emitted when the mouse pointer enters any of this object's shapes or moves from one shape to another. [param shape_idx] is the child index of the newly entered [Shape2D]. Requires [member input_pickable] to be [code]true[/code] and at least one [member collision_layer] bit to be set.
Emitted when the mouse pointer exits any of this object's shapes. [param shape_idx] is the child index of the exited [Shape2D]. Requires [member input_pickable] to be [code]true[/code] and at least one [member collision_layer] bit to be set.
When [member Node.process_mode] is set to [constant Node.PROCESS_MODE_DISABLED], remove from the physics simulation to stop all physics interactions with this [CollisionObject2D].
Automatically re-added to the physics simulation when the [Node] is processed again.
When [member Node.process_mode] is set to [constant Node.PROCESS_MODE_DISABLED], make the body static. Doesn't affect [Area2D]. [PhysicsBody2D] can't be affected by forces or other bodies while static.
Automatically set [PhysicsBody2D] back to its original mode when the [Node] is processed again.
