Java 类net.minecraft.entity.projectile.EntityArrow.PickupStatus 实例源码

@Override
public void update() {
    super.update();
    World world = entity.getWorld();
    if(!world.isRemote && entity.ticksExisted()%TICKRATE==0){
        BlockPos pos = getPos();
        for(int i=0;i<AMOUNT;i++){
            double x = pos.getX()+Math.random() * RAD * 2 - RAD,
                   z = pos.getZ()+Math.random() * RAD * 2 - RAD;
            BlockPos spawn = new BlockPos(x,pos.getY()+94,z);
            while(!world.isAirBlock(spawn)&&spawn.getY()>pos.getY()+1)spawn=spawn.down();
            //Original spawned arrows at a fixed height of 158
            EntityArrow arrow = new EntityTippedArrow(world, x, spawn.getY(), z);
            arrow.motionX=0;
            arrow.motionZ=0;
            arrow.motionY=-2D;
            arrow.setFire(30);
            arrow.pickupStatus=PickupStatus.DISALLOWED;//why is this an int...
            //arrow.setThrowableHeading(0, -1, 0, 2F, 0);
            world.spawnEntity(arrow);
        }
    }
}

@SuppressWarnings("static-access")
@SubscribeEvent
public void onBowFire(ArrowLooseEvent event)
{
    EntityPlayer player = event.getEntityPlayer();
    ItemStack stack = event.getBow();
    NBTTagCompound nbt = NBTHelper.loadStackNBT(stack);

    if (player != null && stack != null && nbt != null && !player.getEntityWorld().isRemote)
    {
        if (BowAttribute.BARRAGE.hasAttribute(nbt))
        {
            for (int i = 0; i < (int) BowAttribute.BARRAGE.getCalculatedValue(nbt, 3, 1.5); i++)
            {
                EntityArrow entityarrow = new EntityTippedArrow(player.getEntityWorld(), player);
                entityarrow.setAim(player, player.rotationPitch, player.rotationYaw, 0, ((ItemBow) event.getBow().getItem()).getArrowVelocity(event.getCharge()) * 3, 20F);
                entityarrow.pickupStatus = PickupStatus.DISALLOWED;
                player.getEntityWorld().spawnEntity(entityarrow);
            }
        }
    }
}

@Override
public void onHit(RayTraceResult raytraceResultIn) {

   super.onHit(raytraceResultIn);

   if (!this.world.isRemote && this.isDead) {

       EntitySpearWood replace = new EntitySpearWood(this.world,
               this.posX, this.posY, this.posZ);
       replace.durability = this.durability;
       replace.pickupStatus = PickupStatus.ALLOWED;
       this.world.spawnEntity(replace);
   }
}

@Override
public void onHit(RayTraceResult raytraceResultIn) {

   super.onHit(raytraceResultIn);

   if (!this.world.isRemote && this.isDead) {

       EntitySpearFlint replace = new EntitySpearFlint(this.world,
               this.posX, this.posY, this.posZ);
       replace.durability = this.durability;
       replace.pickupStatus = PickupStatus.ALLOWED;
       this.world.spawnEntity(replace);
   }
}