protected void entityInit() {
	super.entityInit();
	if (arrow == null) arrow = new ItemStack(Item.arrow,1);
}
public void onCollideWithPlayer(EntityPlayer par1EntityPlayer) {
        if (worldObj.isRemote) return;
	if (inGround && arrowShake <= 0) {
		if (arrow != null) {
			if (Math.random() < pickupChance) {
				EntityItem a = new EntityItem(worldObj, posX, posY, posZ, arrow);
				a.setVelocity(0,0,0);
				worldObj.spawnEntityInWorld(a);
			}
			setDead();
		}
	}
}