Util.java 文件源码

public static void shootRandomFirework(Location loc, int height) {
    Firework f = (Firework) loc.getWorld().spawnEntity(loc, EntityType.FIREWORK);
    FireworkMeta fm = f.getFireworkMeta();
    fm.setPower(height);
    int effectAmount = random.nextInt(3) + 1;
    for(int i = 0; i < effectAmount; i++) {
        Builder b = FireworkEffect.builder();
        int colorAmount = random.nextInt(3) + 1;
        for(int ii = 0; ii < colorAmount; ii++) {
            b.withColor(Color.fromBGR(random.nextInt(256), random.nextInt(256), random.nextInt(256)));
        }
        b.with(Type.values()[random.nextInt(Type.values().length)]);
        b.flicker(random.nextInt(2) == 0 ? false : true);
        b.trail(random.nextInt(2) == 0 ? false : true);
        fm.addEffect(b.build());
    }
    f.setFireworkMeta(fm);
}