KillAura

public class KillAura extends Mod{
	private int ticks = 0;
	public KillAura() {
		super("KillAura", "KillAura", Keyboard.KEY_R, Category.COMBAT);
	}
	public void onUpdate(){
		if(this.isToggled()){
			ticks++;
			if(ticks >= 20 - speed()){
				ticks = 0;
				for(Iterator<Entity> entities = mc.theWorld.loadedEntityList.iterator(); entities.hasNext();) {
		            Object theObject = entities.next();
		            if(theObject instanceof EntityLivingBase) {
		                EntityLivingBase entity = (EntityLivingBase) theObject;

		                if(entity instanceof EntityPlayerSP) continue;

		                if(mc.thePlayer.getDistanceToEntity(entity) <= 7F) {

		                	if(entity.isInvisible()){
		                		break;
		                	}
		                    if(entity.isEntityAlive()) {
		                    	if(mc.thePlayer.getHeldItem() != null){
		    							mc.thePlayer.setItemInUse(mc.thePlayer.getHeldItem(), mc.thePlayer.getHeldItem().getMaxItemUseDuration());
		                        	}
		                    	if(mc.thePlayer.isBlocking()){
		    						mc.thePlayer.sendQueue.addToSendQueue(new C07PacketPlayerDigging(Action.RELEASE_USE_ITEM, new BlockPos(0, 0, 0), EnumFacing.UP));
		    					}

		                    	mc.thePlayer.sendQueue.addToSendQueue(new C02PacketUseEntity(entity, C02PacketUseEntity.Action.ATTACK));
		                        mc.thePlayer.swingItem();
		                        break;
		                    }
		                }
					}
				}
			}
		}
	}
	private int speed() {
		return 18;
	}

}