70 lines
2.3 KiB
Java
70 lines
2.3 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2019.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.items;
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import net.minecraft.item.ItemStack;
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import net.minecraft.tileentity.HopperTileEntity;
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import net.minecraftforge.items.wrapper.InvWrapper;
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import javax.annotation.Nonnull;
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public class VanillaHopperItemHandler extends InvWrapper
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{
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private final HopperTileEntity hopper;
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public VanillaHopperItemHandler(HopperTileEntity hopper)
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{
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super(hopper);
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this.hopper = hopper;
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}
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@Override
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@Nonnull
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public ItemStack insertItem(int slot, @Nonnull ItemStack stack, boolean simulate)
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{
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if (simulate)
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{
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return super.insertItem(slot, stack, simulate);
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}
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else
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{
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boolean wasEmpty = getInv().isEmpty();
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int originalStackSize = stack.getCount();
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stack = super.insertItem(slot, stack, simulate);
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if (wasEmpty && originalStackSize > stack.getCount())
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{
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if (!hopper.mayTransfer())
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{
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// This cooldown is always set to 8 in vanilla with one exception:
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// Hopper -> Hopper transfer sets this cooldown to 7 when this hopper
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// has not been updated as recently as the one pushing items into it.
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// This vanilla behavior is preserved by VanillaInventoryCodeHooks#insertStack,
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// the cooldown is set properly by the hopper that is pushing items into this one.
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hopper.setTransferCooldown(8);
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}
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}
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return stack;
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}
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}
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}
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