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package net.minecraft.server;
import java.util.List;
// CraftBukkit start
import org.bukkit.craftbukkit.entity.CraftHumanEntity;
import org.bukkit.craftbukkit.inventory.CraftItemStack;
import org.bukkit.entity.HumanEntity;
import org.bukkit.event.inventory.InventoryMoveItemEvent;
import org.bukkit.event.inventory.InventoryPickupItemEvent;
import org.bukkit.inventory.Inventory;
// CraftBukkit end
public class TileEntityHopper extends TileEntity implements IHopper {
private ItemStack[] a = new ItemStack[5];
private String b;
private int c = -1;
// CraftBukkit start
public List<HumanEntity> transaction = new java.util.ArrayList<HumanEntity>();
private int maxStack = MAX_STACK;
public ItemStack[] getContents() {
return this.a;
}
public void onOpen(CraftHumanEntity who) {
transaction.add(who);
}
public void onClose(CraftHumanEntity who) {
transaction.remove(who);
}
public List<HumanEntity> getViewers() {
return transaction;
}
public void setMaxStackSize(int size) {
maxStack = size;
}
// CraftBukkit end
public TileEntityHopper() {}
public void a(NBTTagCompound nbttagcompound) {
super.a(nbttagcompound);
NBTTagList nbttaglist = nbttagcompound.getList("Items");
this.a = new ItemStack[this.getSize()];
if (nbttagcompound.hasKey("CustomName")) {
this.b = nbttagcompound.getString("CustomName");
}
this.c = nbttagcompound.getInt("TransferCooldown");
for (int i = 0; i < nbttaglist.size(); ++i) {
NBTTagCompound nbttagcompound1 = (NBTTagCompound) nbttaglist.get(i);
byte b0 = nbttagcompound1.getByte("Slot");
if (b0 >= 0 && b0 < this.a.length) {
this.a[b0] = ItemStack.createStack(nbttagcompound1);
}
}
}
public void b(NBTTagCompound nbttagcompound) {
super.b(nbttagcompound);
NBTTagList nbttaglist = new NBTTagList();
for (int i = 0; i < this.a.length; ++i) {
if (this.a[i] != null) {
NBTTagCompound nbttagcompound1 = new NBTTagCompound();
nbttagcompound1.setByte("Slot", (byte) i);
this.a[i].save(nbttagcompound1);
nbttaglist.add(nbttagcompound1);
}
}
nbttagcompound.set("Items", nbttaglist);
nbttagcompound.setInt("TransferCooldown", this.c);
if (this.c()) {
nbttagcompound.setString("CustomName", this.b);
}
}
public void update() {
super.update();
}
public int getSize() {
return this.a.length;
}
public ItemStack getItem(int i) {
return this.a[i];
}
public ItemStack splitStack(int i, int j) {
if (this.a[i] != null) {
ItemStack itemstack;
if (this.a[i].count <= j) {
itemstack = this.a[i];
this.a[i] = null;
return itemstack;
} else {
itemstack = this.a[i].a(j);
if (this.a[i].count == 0) {
this.a[i] = null;
}
return itemstack;
}
} else {
return null;
}
}
public ItemStack splitWithoutUpdate(int i) {
if (this.a[i] != null) {
ItemStack itemstack = this.a[i];
this.a[i] = null;
return itemstack;
} else {
return null;
}
}
public void setItem(int i, ItemStack itemstack) {
this.a[i] = itemstack;
if (itemstack != null && itemstack.count > this.getMaxStackSize()) {
itemstack.count = this.getMaxStackSize();
}
}
public String getName() {
return this.c() ? this.b : "container.hopper";
}
public boolean c() {
return this.b != null && this.b.length() > 0;
}
public void a(String s) {
this.b = s;
}
public int getMaxStackSize() {
return 64;
}
public boolean a(EntityHuman entityhuman) {
return this.world.getTileEntity(this.x, this.y, this.z) != this ? false : entityhuman.e((double) this.x + 0.5D, (double) this.y + 0.5D, (double) this.z + 0.5D) <= 64.0D;
}
public void startOpen() {}
public void g() {}
public boolean b(int i, ItemStack itemstack) {
return true;
}
public void h() {
if (this.world != null && !this.world.isStatic) {
--this.c;
if (!this.l()) {
this.c(0);
this.j();
}
}
}
public boolean j() {
if (this.world != null && !this.world.isStatic) {
if (!this.l() && BlockHopper.d(this.p())) {
boolean flag = this.u() | suckInItems(this);
// CraftBukkit start - Move delay out of if block
this.c(8);
if (flag) {
// CraftBukkit end
this.update();
return true;
}
}
return false;
} else {
return false;
}
}
private boolean u() {
IInventory iinventory = this.v();
if (iinventory == null) {
return false;
} else {
for (int i = 0; i < this.getSize(); ++i) {
if (this.getItem(i) != null) {
ItemStack itemstack = this.getItem(i).cloneItemStack();
// CraftBukkit start - Call event when pushing items into other inventories
CraftItemStack oitemstack = CraftItemStack.asCraftMirror(this.splitStack(i, 1));
Inventory destinationInventory;
// Have to special case large chests as they work oddly
if (iinventory instanceof InventoryLargeChest) {
destinationInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory);
} else {
destinationInventory = iinventory.getOwner().getInventory();
}
InventoryMoveItemEvent event = new InventoryMoveItemEvent(this.getOwner().getInventory(), oitemstack.clone(), destinationInventory, true);
this.getWorld().getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
this.setItem(i, itemstack);
this.c(8); // Delay hopper checks
return false;
}
ItemStack itemstack1 = addItem(iinventory, CraftItemStack.asNMSCopy(event.getItem()), Facing.OPPOSITE_FACING[BlockHopper.c(this.p())]);
if (itemstack1 == null || itemstack1.count == 0) {
if (event.getItem().equals(oitemstack)) {
iinventory.update();
} else {
this.setItem(i, itemstack);
}
// CraftBukkit end
return true;
}
this.setItem(i, itemstack);
}
}
return false;
}
}
public static boolean suckInItems(IHopper ihopper) {
IInventory iinventory = getSourceInventory(ihopper);
if (iinventory != null) {
byte b0 = 0;
if (iinventory instanceof IWorldInventory && b0 > -1) {
IWorldInventory iworldinventory = (IWorldInventory) iinventory;
int[] aint = iworldinventory.getSlotsForFace(b0);
for (int i = 0; i < aint.length; ++i) {
if (tryTakeInItemFromSlot(ihopper, iinventory, aint[i], b0)) {
return true;
}
}
} else {
int j = iinventory.getSize();
for (int k = 0; k < j; ++k) {
if (tryTakeInItemFromSlot(ihopper, iinventory, k, b0)) {
return true;
}
}
}
} else {
EntityItem entityitem = getEntityItemAt(ihopper.getWorld(), ihopper.aA(), ihopper.aB() + 1.0D, ihopper.aC());
if (entityitem != null) {
return addEntityItem(ihopper, entityitem);
}
}
return false;
}
private static boolean tryTakeInItemFromSlot(IHopper ihopper, IInventory iinventory, int i, int j) {
ItemStack itemstack = iinventory.getItem(i);
if (itemstack != null && canTakeItemFromInventory(iinventory, itemstack, i, j)) {
ItemStack itemstack1 = itemstack.cloneItemStack();
// CraftBukkit start - Call event on collection of items from inventories into the hopper
CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.splitStack(i, 1));
Inventory sourceInventory;
// Have to special case large chests as they work oddly
if (iinventory instanceof InventoryLargeChest) {
sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((InventoryLargeChest) iinventory);
} else {
sourceInventory = iinventory.getOwner().getInventory();
}
InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack.clone(), ihopper.getOwner().getInventory(), false);
ihopper.getWorld().getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
iinventory.setItem(i, itemstack1);
if (ihopper instanceof TileEntityHopper) {
((TileEntityHopper) ihopper).c(8); // Delay hopper checks
} else if (ihopper instanceof EntityMinecartHopper) {
((EntityMinecartHopper) ihopper).n(4); // Delay hopper minecart checks
}
return false;
}
ItemStack itemstack2 = addItem(ihopper, CraftItemStack.asNMSCopy(event.getItem()), -1);
if (itemstack2 == null || itemstack2.count == 0) {
if (event.getItem().equals(oitemstack)) {
iinventory.update();
} else {
iinventory.setItem(i, itemstack1);
}
// CraftBukkit end
return true;
}
iinventory.setItem(i, itemstack1);
}
return false;
}
public static boolean addEntityItem(IInventory iinventory, EntityItem entityitem) {
boolean flag = false;
if (entityitem == null) {
return false;
} else {
// CraftBukkit start
InventoryPickupItemEvent event = new InventoryPickupItemEvent(iinventory.getOwner().getInventory(), (org.bukkit.entity.Item) entityitem.getBukkitEntity());
entityitem.world.getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
return false;
}
// CraftBukkit end
ItemStack itemstack = entityitem.getItemStack().cloneItemStack();
ItemStack itemstack1 = addItem(iinventory, itemstack, -1);
if (itemstack1 != null && itemstack1.count != 0) {
entityitem.setItemStack(itemstack1);
} else {
flag = true;
entityitem.die();
}
return flag;
}
}
public static ItemStack addItem(IInventory iinventory, ItemStack itemstack, int i) {
if (iinventory instanceof IWorldInventory && i > -1) {
IWorldInventory iworldinventory = (IWorldInventory) iinventory;
int[] aint = iworldinventory.getSlotsForFace(i);
for (int j = 0; j < aint.length && itemstack != null && itemstack.count > 0; ++j) {
itemstack = tryMoveInItem(iinventory, itemstack, aint[j], i);
}
} else {
int k = iinventory.getSize();
for (int l = 0; l < k && itemstack != null && itemstack.count > 0; ++l) {
itemstack = tryMoveInItem(iinventory, itemstack, l, i);
}
}
if (itemstack != null && itemstack.count == 0) {
itemstack = null;
}
return itemstack;
}
private static boolean canPlaceItemInInventory(IInventory iinventory, ItemStack itemstack, int i, int j) {
return !iinventory.b(i, itemstack) ? false : !(iinventory instanceof IWorldInventory) || ((IWorldInventory) iinventory).canPlaceItemThroughFace(i, itemstack, j);
}
private static boolean canTakeItemFromInventory(IInventory iinventory, ItemStack itemstack, int i, int j) {
return !(iinventory instanceof IWorldInventory) || ((IWorldInventory) iinventory).canTakeItemThroughFace(i, itemstack, j);
}
private static ItemStack tryMoveInItem(IInventory iinventory, ItemStack itemstack, int i, int j) {
ItemStack itemstack1 = iinventory.getItem(i);
if (canPlaceItemInInventory(iinventory, itemstack, i, j)) {
boolean flag = false;
if (itemstack1 == null) {
iinventory.setItem(i, itemstack);
itemstack = null;
flag = true;
} else if (canMergeItems(itemstack1, itemstack)) {
int k = itemstack.getMaxStackSize() - itemstack1.count;
int l = Math.min(itemstack.count, k);
itemstack.count -= l;
itemstack1.count += l;
flag = l > 0;
}
if (flag) {
if (iinventory instanceof TileEntityHopper) {
((TileEntityHopper) iinventory).c(8);
}
iinventory.update();
}
}
return itemstack;
}
private IInventory v() {
int i = BlockHopper.c(this.p());
return getInventoryAt(this.getWorld(), (double) (this.x + Facing.b[i]), (double) (this.y + Facing.c[i]), (double) (this.z + Facing.d[i]));
}
public static IInventory getSourceInventory(IHopper ihopper) {
return getInventoryAt(ihopper.getWorld(), ihopper.aA(), ihopper.aB() + 1.0D, ihopper.aC());
}
public static EntityItem getEntityItemAt(World world, double d0, double d1, double d2) {
List list = world.a(EntityItem.class, AxisAlignedBB.a().a(d0, d1, d2, d0 + 1.0D, d1 + 1.0D, d2 + 1.0D), IEntitySelector.a);
return list.size() > 0 ? (EntityItem) list.get(0) : null;
}
public static IInventory getInventoryAt(World world, double d0, double d1, double d2) {
IInventory iinventory = null;
int i = MathHelper.floor(d0);
int j = MathHelper.floor(d1);
int k = MathHelper.floor(d2);
TileEntity tileentity = world.getTileEntity(i, j, k);
if (tileentity != null && tileentity instanceof IInventory) {
iinventory = (IInventory) tileentity;
if (iinventory instanceof TileEntityChest) {
int l = world.getTypeId(i, j, k);
Block block = Block.byId[l];
if (block instanceof BlockChest) {
iinventory = ((BlockChest) block).g_(world, i, j, k);
}
}
}
if (iinventory == null) {
List list = world.getEntities((Entity) null, AxisAlignedBB.a().a(d0, d1, d2, d0 + 1.0D, d1 + 1.0D, d2 + 1.0D), IEntitySelector.b);
if (list != null && list.size() > 0) {
iinventory = (IInventory) list.get(world.random.nextInt(list.size()));
}
}
return iinventory;
}
private static boolean canMergeItems(ItemStack itemstack, ItemStack itemstack1) {
return itemstack.id != itemstack1.id ? false : (itemstack.getData() != itemstack1.getData() ? false : (itemstack.count > itemstack.getMaxStackSize() ? false : ItemStack.equals(itemstack, itemstack1)));
}
public double aA() {
return (double) this.x;
}
public double aB() {
return (double) this.y;
}
public double aC() {
return (double) this.z;
}
public void c(int i) {
this.c = i;
}
public boolean l() {
return this.c > 0;
}
}
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