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.
Accepts unhandled [InputEvent]s. Requires [member input_pickable] to be [code]true[/code]. [code]shape_idx[/code] 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 [code]enable[/code] is [code]true[/code], collisions for the shape owner originating from this [CollisionObject2D] will not be reported to collided with [CollisionObject2D]s.
The physics layers this CollisionObject2D is in. Collision objects can exist in one or more of 32 different layers. See also [member collision_mask].
[b]Note:[/b] A contact is detected if object A is in any of the layers that object B scans, or object B is in any layers that object A scans. See [url=https://docs.godotengine.org/en/latest/tutorials/physics/physics_introduction.html#collision-layers-and-masks]Collision layers and masks[/url] in the documentation for more information.
The physics layers this CollisionObject2D scans. Collision objects can scan one or more of 32 different layers. See also [member collision_layer].
[b]Note:[/b] A contact is detected if object A is in any of the layers that object B scans, or object B is in any layers that object A scans. See [url=https://docs.godotengine.org/en/latest/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 [code]collision_layer[/code] bit to be set.
Emitted when an input event occurs. Requires [member input_pickable] to be [code]true[/code] and at least one [code]collision_layer[/code] 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.
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.
</description>
</signal>
<signalname="mouse_shape_entered">
<argumentindex="0"name="shape_idx"type="int">
</argument>
<description>
Emitted when the mouse pointer enters any of this object's shapes or moves from one shape to another. [code]shape_idx[/code] 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.
</description>
</signal>
<signalname="mouse_shape_exited">
<argumentindex="0"name="shape_idx"type="int">
</argument>
<description>
Emitted when the mouse pointer exits any of this object's shapes. [code]shape_idx[/code] 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.
