public void summonCircle(Location location, double size) {
    for (int d = 0; d <= 360; d += 1) { // 360 - заполненность формы
        Location particleLoc = new Location(location.getWorld(), location.getX(), location.getY(), location.getZ());
        particleLoc.setX(location.getX() + Math.cos(d) * size);
        particleLoc.setZ(location.getZ() + Math.sin(d) * size);
        Objects.requireNonNull(location.getWorld()).spawnParticle(Particle.REDSTONE, particleLoc, 20, new Particle.DustOptions(Color.RED, 1));
    }
}