hi, im making a plugin that show effects with particles, in a specific effect i need a semi-circle in the horizontal that follow the player direction, i already do the part of the semi-circle but he dont follow player looking direction, can anyone help me? i want the semi-circle look like this: but he stay in just 1 direction: this is my current code: new BukkitRunnable() { double phi = 0; @Override public void run() { phi += Math.PI/15; for(double th = 0; th <= 1* Math.PI; th += Math.PI/30) { double x = radius*Math.cos(th); double z = radius*Math.sin(th); loc.add(x, 0, z); loc.getWorld().spawnParticle(Particle.CLOUD,loc,0, 1, 0, 5, 0); loc.subtract(x, 0, z); } this.cancel(); } }.runTaskTimer(Main.getInstance(), 1, 1); solved EDIT by Moderator: merged posts, please use the edit button instead of double posting.