LauncherGizmo.java 文件源码

private Firework buildFirework(Location loc) {
    Firework firework = (Firework) loc.getWorld().spawnEntity(loc, EntityType.FIREWORK);
    FireworkMeta fwm = firework.getFireworkMeta();
    fwm.addEffect(FireworkEffect.builder()
                  .withColor(AMERICA_COLORS)
                  .with(FireworkEffect.Type.STAR)
                  .withTrail()
                  .withFade(AMERICA_COLORS)
                  .build());
    firework.setFireworkMeta(fwm);

    firework.setVelocity(loc.getDirection().divide(new Vector(2, 1, 2)));

    return firework;
}