Version: 2023.1
Circle Collider 2D component reference
Polygon Collider 2D component reference

Box Collider 2D component reference

The Box Collider 2D component is a Collider 2D that interacts with the 2D physics system for collision detection. This collider 2D is a rectangle with a defined position, width, and height in the local coordinate space of a sprite. Adjust the component properties to change the shape and behavior of the collider 2D.

Note: The selection rectangle is axis-aligned, with its edges parallel to the x or y axes of local space.

Box Collider 2D component Inspector window properties.
Box Collider 2D component Inspector window properties.
属性 功能
Material Select the Physics Material 2D that determines properties of collisions, such as friction and bounce.
Is Trigger Enable this if you want this Collider 2D to behave as a trigger. The physics system ignores this Collider when this is enabled.
Used by Effector Enable this if you want the Collider 2D to be used by an attached Effector 2D.
Composite Operations Select the composite operation used by an attached Composite Collider 2D component.

Note: When you select any operation besides None, the following properties—Material, Is Trigger, Used By Effector, and Edge Radius—become controlled by the attached Composite Collider 2D component and are no longer available in this collider’s properties.
Select this to have no composite operation take place.
Merge Select this to have this composite operation compose geometry using a Boolean OR operation.
Intersect Select this to have this composite operation compose geometry using a Boolean AND operation.
Difference Select this to have this composite operation compose geometry using a Boolean NOT operation.
Flip Select this to have this composite operation compose geometry using a Boolean XOR operation.
Auto Tiling Enable this if the Sprite Renderer component for the selected Sprite has the Draw Mode set to Tiled. This enables automatic updates to the shape of the Collider 2D, allowing the shape to automatically readjust when the Sprite’s dimensions change. If you don’t enable Auto Tiling, the Collider 2D geometry doesn’t automatically repeat.
Offset Set the local offset values of the Collider 2D geometry.
Size 按局部空间单位设置盒体的大小。
Edge Radius 设置一个值,以形成围绕碰撞体边界的半径。这会产生一个具有圆凸角的更大 2D 碰撞体。默认值为 0(没有半径)。
Layer Overrides Expand for the Layer override settings.
Layer Override Priority Assign the decision priority that this Collider2D uses when resolving conflicting decisions on whether a contact between itself and another Collision2D should happen or not. Refer to its API page for more information.
Include Layers Select the additional Layers that this Collider 2D should include when deciding if a contact with another Collider2D should happen or not. Refer to its API documentation for more information.
Exclude Layers Select the additional Layers that this Collider 2D should exclude when deciding if a contact with another Collider2D should happen or not. Refer to its API documentation for more information.
Force Send Layers Select the Layers that this Collider 2D is allowed to send forces to during a Collision contact with another Collider2D. Refer to its API documentation for more information.
Force Receive Layers Select the Layers that this Collider 2D can receive forces from during a Collision contact with another Collider2D. Refer to its API documentation for more information.
Contract Capture Layers Select the Layers of other Collider 2D, involved in contacts with this Collider2D, that will be captured. Refer to its API documentation for more information.
Callback Layers Select the Layers that this Collider 2D, during a contact with another Collider2D, will report collision or trigger callbacks for. Refer to its API documentation for more information.

其他资源

BoxCollider2D

Circle Collider 2D component reference
Polygon Collider 2D component reference