extends PhysicsDriver class_name RapierDriver3D func _init_physics_space() -> void: physics_space = get_viewport().world_3d.space PhysicsServer3D.space_set_active(physics_space, false) func _physics_step(delta) -> void: RapierPhysicsServer3D.space_step(physics_space, delta) RapierPhysicsServer3D.space_flush_queries(physics_space) func _snapshot_space(tick: int) -> void: snapshots[tick] = RapierPhysicsServer3D.export_binary(physics_space) func _rollback_space(tick) -> void: if snapshots.has(tick): RapierPhysicsServer3D.import_binary(physics_space, snapshots[tick])