collider_active_collision_types

By default, collision-detection is completely disabled between two colliders when both are attached to non-dynamic bodies. Sometimes, it can be useful to enable collision-detection between, e.g., a collider attached to a kinematic rigid-body and a collider attached to a fixed rigid-body. This can be done by modifying the collider's ActiveCollisionTypes:

# Set the active collision types when the collider is created.
collider = (
    rp.Collider.ball(0.5)
    .active_collision_types(
        rp.ActiveCollisionTypes.default_types() | rp.ActiveCollisionTypes.KINEMATIC_FIXED
    )
    .build()
)

# Set the active collision types after the collider creation.
collider = world.colliders[collider_handle]
collider.active_collision_types = (
    rp.ActiveCollisionTypes.default_types() | rp.ActiveCollisionTypes.KINEMATIC_FIXED
)
assert collider.active_collision_types.contains(rp.ActiveCollisionTypes.DYNAMIC_KINEMATIC)
assert collider.active_collision_types.contains(rp.ActiveCollisionTypes.KINEMATIC_FIXED)

info

To enable collision-detection between kinematic bodies and fixed bodies (as well as dynamic bodies), set its active collision types to:

rp.ActiveCollisionTypes.default_types() | rp.ActiveCollisionTypes.KINEMATIC_FIXED