/**
* Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
* <p/>
* 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.robotics.ai;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraftforge.common.util.ForgeDirection;
import buildcraft.api.core.IInvSlot;
import buildcraft.api.robots.AIRobot;
import buildcraft.api.robots.DockingStation;
import buildcraft.api.robots.EntityRobotBase;
import buildcraft.core.lib.inventory.ITransactor;
import buildcraft.core.lib.inventory.InventoryIterator;
import buildcraft.core.lib.inventory.Transactor;
import buildcraft.core.lib.inventory.filters.IStackFilter;
import buildcraft.robotics.statements.ActionRobotFilter;
import buildcraft.robotics.statements.ActionStationProvideItems;
public class AIRobotLoad extends AIRobot {
public static final int ANY_QUANTITY = -1;
private IStackFilter filter;
private int quantity;
private int waitedCycles = 0;
public AIRobotLoad(EntityRobotBase iRobot) {
super(iRobot);
}
public AIRobotLoad(EntityRobotBase iRobot, IStackFilter iFilter, int iQuantity) {
super(iRobot);
filter = iFilter;
quantity = iQuantity;
}
@Override
public void update() {
if (filter == null) {
terminate();
return;
}
waitedCycles++;
if (waitedCycles > 40) {
setSuccess(load(robot, robot.getDockingStation(), filter, quantity, true));
terminate();
}
}
/** Similar method to {@link #load(EntityRobotBase, DockingStation, IStackFilter, int, boolean)} but returns the
* itemstack rather than loading it onto the robot.
*
* Only loads a single stack at once. */
public static ItemStack takeSingle(DockingStation station, IStackFilter filter, boolean doTake) {
if (station == null) {
return null;
}
IInventory tileInventory = station.getItemInput();
if (tileInventory == null) {
return null;
}
for (IInvSlot slot : InventoryIterator.getIterable(tileInventory, station.getItemInputSide())) {
ItemStack stack = slot.getStackInSlot();
if (stack == null
|| !slot.canTakeStackFromSlot(stack)
|| !filter.matches(stack)
|| !ActionStationProvideItems.canExtractItem(station, stack)
|| !ActionRobotFilter.canInteractWithItem(station, filter,
ActionStationProvideItems.class)) {
continue;
}
if (doTake) {
stack = slot.decreaseStackInSlot(1);
} else {
stack = stack.copy();
stack = stack.splitStack(1);
}
return stack;
}
return null;
}
public static boolean load(EntityRobotBase robot, DockingStation station, IStackFilter filter,
int quantity, boolean doLoad) {
if (station == null) {
return false;
}
int loaded = 0;
IInventory tileInventory = station.getItemInput();
if (tileInventory == null) {
return false;
}
for (IInvSlot slot : InventoryIterator.getIterable(tileInventory, station.getItemInputSide())) {
ItemStack stack = slot.getStackInSlot();
if (stack == null
|| !slot.canTakeStackFromSlot(stack)
|| !filter.matches(stack)
|| !ActionStationProvideItems.canExtractItem(station, stack)
|| !ActionRobotFilter.canInteractWithItem(station, filter,
ActionStationProvideItems.class)) {
continue;
}
ITransactor robotTransactor = Transactor.getTransactorFor(robot);
if (quantity == ANY_QUANTITY) {
ItemStack added = robotTransactor.add(slot.getStackInSlot(),
ForgeDirection.UNKNOWN, doLoad);
if (doLoad) {
slot.decreaseStackInSlot(added.stackSize);
}
return added.stackSize > 0;
} else {
ItemStack toAdd = slot.getStackInSlot().copy();
if (toAdd.stackSize > quantity - loaded) {
toAdd.stackSize = quantity - loaded;
}
ItemStack added = robotTransactor.add(toAdd, ForgeDirection.UNKNOWN, doLoad);
if (doLoad) {
slot.decreaseStackInSlot(added.stackSize);
}
loaded += added.stackSize;
if (quantity - loaded <= 0) {
return true;
}
}
}
return false;
}
@Override
public int getEnergyCost() {
return 8;
}
}