Package mekanism.common.inventory.container

Source Code of mekanism.common.inventory.container.ContainerGasTank

package mekanism.common.inventory.container;

import mekanism.api.gas.IGasItem;
import mekanism.common.inventory.slot.SlotStorageTank;
import mekanism.common.tile.TileEntityGasTank;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;

public class ContainerGasTank extends Container
{
  private TileEntityGasTank tileEntity;

  public ContainerGasTank(InventoryPlayer inventory, TileEntityGasTank tentity)
  {
    tileEntity = tentity;
    addSlotToContainer(new SlotStorageTank(tentity, 0, 8, 8));
    addSlotToContainer(new SlotStorageTank(tentity, 1, 8, 40));

    int slotX;

    for(slotX = 0; slotX < 3; slotX++)
    {
      for(int slotY = 0; slotY < 9; slotY++)
      {
        addSlotToContainer(new Slot(inventory, slotY + slotX * 9 + 9, 8 + slotY * 18, 84 + slotX * 18));
      }
    }

    for(slotX = 0; slotX < 9; slotX++)
    {
      addSlotToContainer(new Slot(inventory, slotX, 8 + slotX * 18, 142));
    }

    tileEntity.open(inventory.player);
    tileEntity.openInventory();
  }

  @Override
  public void onContainerClosed(EntityPlayer entityplayer)
  {
    super.onContainerClosed(entityplayer);

    tileEntity.close(entityplayer);
    tileEntity.closeInventory();
  }

  @Override
  public boolean canInteractWith(EntityPlayer entityplayer)
  {
    return tileEntity.isUseableByPlayer(entityplayer);
  }

  @Override
  public ItemStack transferStackInSlot(EntityPlayer player, int slotID)
  {
    ItemStack stack = null;
    Slot currentSlot = (Slot)inventorySlots.get(slotID);

    if(currentSlot != null && currentSlot.getHasStack())
    {
      ItemStack slotStack = currentSlot.getStack();
      stack = slotStack.copy();

      if(slotStack.getItem() instanceof IGasItem)
      {
        if(slotID != 0 && slotID != 1)
        {
          if(!mergeItemStack(slotStack, 1, 2, false))
          {
            if(!mergeItemStack(slotStack, 0, 1, false))
            {
              return null;
            }
          }
        }
        else if(slotID == 1)
        {
          if(!mergeItemStack(slotStack, 0, 1, false))
          {
            if(!mergeItemStack(slotStack, 2, inventorySlots.size(), false))
            {
              return null;
            }
          }
        }
        else if(slotID == 0)
        {
          if(!mergeItemStack(slotStack, 2, inventorySlots.size(), true))
          {
            return null;
          }
        }
      }
      else {
        if(slotID >= 2 && slotID <= 28)
        {
          if(!mergeItemStack(slotStack, 29, inventorySlots.size(), false))
          {
            return null;
          }
        }
        else if(slotID > 28)
        {
          if(!mergeItemStack(slotStack, 2, 28, false))
          {
            return null;
          }
        }
        else {
          if(!mergeItemStack(slotStack, 2, inventorySlots.size(), true))
          {
            return null;
          }
        }
      }

      if(slotStack.stackSize == 0)
      {
        currentSlot.putStack((ItemStack)null);
      }
      else {
        currentSlot.onSlotChanged();
      }

      if(slotStack.stackSize == stack.stackSize)
      {
        return null;
      }

      currentSlot.onPickupFromSlot(player, slotStack);
    }

    return stack;
  }
}
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