/**
* Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.factory;
import net.minecraft.block.Block;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.util.ForgeDirection;
import buildcraft.core.TileBuildCraft;
import buildcraft.core.inventory.ITransactor;
import buildcraft.core.inventory.SimpleInventory;
import buildcraft.core.inventory.Transactor;
public class TileHopper extends TileBuildCraft implements IInventory {
private final SimpleInventory inventory = new SimpleInventory(4, "Hopper", 64);
private boolean isEmpty;
private TileEntity outputTile;
@Override
public void readFromNBT(NBTTagCompound nbtTagCompound) {
super.readFromNBT(nbtTagCompound);
NBTTagCompound p = nbtTagCompound;
if (nbtTagCompound.hasKey("inventory")) {
// to support pre 6.0 loading
p = nbtTagCompound.getCompoundTag("inventory");
}
inventory.readFromNBT(p);
refreshInventoryFlags();
}
@Override
public void writeToNBT(NBTTagCompound nbtTagCompound) {
super.writeToNBT(nbtTagCompound);
inventory.writeToNBT(nbtTagCompound);
}
@Override
public void updateEntity() {
super.updateEntity();
if (worldObj.isRemote || isEmpty ||
worldObj.getTotalWorldTime() % 2 != 0) {
return;
}
if (outputTile == null || outputTile.isInvalid()) {
Block block = worldObj.getBlock(xCoord, yCoord - 1, zCoord);
outputTile = null;
if (block.hasTileEntity(worldObj.getBlockMetadata(xCoord, yCoord - 1, zCoord))) {
outputTile = worldObj.getTileEntity(xCoord, yCoord - 1, zCoord);
}
if (outputTile == null) {
return;
}
}
ITransactor transactor = Transactor.getTransactorFor(outputTile);
if (transactor == null) {
return;
}
for (int internalSlot = 0; internalSlot < inventory.getSizeInventory(); internalSlot++) {
ItemStack stackInSlot = inventory.getStackInSlot(internalSlot);
if (stackInSlot == null || stackInSlot.stackSize == 0) {
continue;
}
ItemStack clonedStack = stackInSlot.copy().splitStack(1);
if (transactor.add(clonedStack, ForgeDirection.UP, true).stackSize > 0) {
inventory.decrStackSize(internalSlot, 1);
return;
}
}
}
private void refreshInventoryFlags() {
isEmpty = true;
for (int internalSlot = 0; internalSlot < inventory.getSizeInventory(); internalSlot++) {
ItemStack stackInSlot = inventory.getStackInSlot(internalSlot);
if (stackInSlot != null && stackInSlot.stackSize > 0) {
isEmpty = false;
return;
}
}
}
/**
* IInventory Implementation *
*/
@Override
public int getSizeInventory() {
return inventory.getSizeInventory();
}
@Override
public ItemStack getStackInSlot(int slotId) {
return inventory.getStackInSlot(slotId);
}
@Override
public ItemStack decrStackSize(int slotId, int count) {
ItemStack output = inventory.decrStackSize(slotId, count);
refreshInventoryFlags();
return output;
}
@Override
public ItemStack getStackInSlotOnClosing(int slotId) {
ItemStack output = inventory.getStackInSlotOnClosing(slotId);
refreshInventoryFlags();
return output;
}
@Override
public void setInventorySlotContents(int slotId, ItemStack itemStack) {
inventory.setInventorySlotContents(slotId, itemStack);
refreshInventoryFlags();
}
@Override
public String getInventoryName() {
return inventory.getInventoryName();
}
@Override
public int getInventoryStackLimit() {
return inventory.getInventoryStackLimit();
}
@Override
public boolean isUseableByPlayer(EntityPlayer entityPlayer) {
return worldObj.getTileEntity(xCoord, yCoord, zCoord) == this && entityPlayer.getDistanceSq(xCoord + 0.5D, yCoord + 0.5D, zCoord + 0.5D) <= 64.0D;
}
@Override
public void openInventory() {
}
@Override
public void closeInventory() {
}
@Override
public boolean isItemValidForSlot(int i, ItemStack itemstack) {
return true;
}
@Override
public boolean hasCustomInventoryName() {
return false;
}
}