Sets the collision category of this Game Object's Matter Body. This number must be a power of two between 2^0 (= 1) and 2^31. Two bodies with different collision groups (see #setCollisionGroup) will only collide if their collision categories are included in their collision masks (see #setCollidesWith).
name | type | description |
---|---|---|
value | number |
Unique category bitfield. |
This Game Object instance.