debug("check select %d distance %g width %d\n", rocket.serial, distance, rocket_bitmap.getWidth());
if (distance < rocket_bitmap.getWidth() * 2.0) {
debug("selecting %d\n", rocket.serial);
debug("check select %d distance %g width %d\n", rocket.serial, distance, rocket_bitmap.getWidth());
if (distance < rocket_bitmap.getWidth() * 2.0) {
debug("selecting %d\n", rocket.serial);