&veh->waiting_triggers

		);

	}

	return ResolveVehicleSpriteGroup(spritegroup, veh, callback);

}

static void DoTriggerVehicle(Vehicle *veh, VehicleTrigger trigger, byte base_random_bits, bool first)

{

	RealSpriteGroup *rsg;

	byte new_random_bits;

	_vsg_random_triggers = trigger;

	_vsg_bits_to_reseed = 0;

	rsg = TriggerVehicleSpriteGroup(GetVehicleSpriteGroup(veh->engine_type, veh), veh,

	                                (resolve_callback) TriggerVehicleSpriteGroup);

	if (rsg->sprites_per_set == 0 && veh->cargo_type != 29) { /* XXX magic number */

		// This group turned out to be empty but perhaps there'll be a default one.

		rsg = TriggerVehicleSpriteGroup(&_engine_custom_sprites[veh->engine_type][29], veh,

						(resolve_callback) TriggerVehicleSpriteGroup);

	}

	new_random_bits = Random();

	veh->random_bits &= ~_vsg_bits_to_reseed;

	veh->random_bits |= (first ? new_random_bits : base_random_bits) & _vsg_bits_to_reseed;