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TriggerInventory.java
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TriggerInventory.java
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/**
* Copyright (c) SpaceToad, 2011
* 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.core.triggers;
import buildcraft.api.gates.ITriggerParameter;
import buildcraft.api.inventory.ISpecialInventory;
import buildcraft.core.inventory.InventoryWrapper;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.ISidedInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.ForgeDirection;
public class TriggerInventory extends BCTrigger {
public enum State {
Empty, Contains, Space, Full
};
public State state;
public TriggerInventory(int id, State state) {
super(id);
this.state = state;
}
@Override
public boolean hasParameter() {
if (state == State.Contains || state == State.Space)
return true;
else
return false;
}
@Override
public String getDescription() {
switch (state) {
case Empty:
return "Inventory Empty";
case Contains:
return "Items in Inventory";
case Space:
return "Space in Inventory";
default:
return "Inventory Full";
}
}
@Override
public boolean isTriggerActive(ForgeDirection side, TileEntity tile, ITriggerParameter parameter) {
ItemStack searchedStack = null;
if (parameter != null) {
searchedStack = parameter.getItem();
}
if (tile instanceof ISpecialInventory) {
ISpecialInventory specialInventory = (ISpecialInventory) tile;
ItemStack[] itemStacks;
switch (state) {
case Contains:
itemStacks = specialInventory.extractItem(false, side, 1);
return itemStacks != null && itemStacks.length > 0 && itemStacks[0] != null && itemStacks[0].stackSize > 0 && (searchedStack == null || itemStacks[0].isItemEqual(searchedStack));
case Empty:
itemStacks = specialInventory.extractItem(false, side, 1);
return itemStacks == null || itemStacks.length == 0 || itemStacks[0] == null || itemStacks[0].stackSize == 0;
case Full:
break;
case Space:
if (searchedStack == null)
break;
int added = specialInventory.addItem(searchedStack, false, side);
return added > 0;
}
}
if (tile instanceof IInventory) {
ISidedInventory inv = InventoryWrapper.getWrappedInventory(tile);
int invSize = inv.getSizeInventory();
if (invSize <= 0)
return false;
boolean foundItems = false;
boolean foundSpace = false;
for (int i : inv.getAccessibleSlotsFromSide(side.ordinal())) {
ItemStack stack = inv.getStackInSlot(i);
boolean slotEmpty = stack == null || stack.stackSize == 0;
if (searchedStack == null) {
foundItems |= !slotEmpty;
} else if (!slotEmpty) {
foundItems |= stack.isItemEqual(searchedStack);
}
if (slotEmpty) {
foundSpace = true;
} else if (searchedStack != null) {
if (stack.stackSize < stack.getMaxStackSize() && stack.isItemEqual(searchedStack)) {
foundSpace = true;
}
}
}
switch (state) {
case Empty:
return !foundItems;
case Contains:
return foundItems;
case Space:
return foundSpace;
default:
return !foundSpace;
}
}
return false;
}
@Override
public int getIconIndex() {
switch (state) {
case Empty:
return ActionTriggerIconProvider.Trigger_Inventory_Empty;
case Contains:
return ActionTriggerIconProvider.Trigger_Inventory_Contains;
case Space:
return ActionTriggerIconProvider.Trigger_Inventory_Space;
default:
return ActionTriggerIconProvider.Trigger_Inventory_Full;
}
}
}