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 transaction = new java.util.ArrayList(); 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 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(); flag = suckInItems(this) || flag; if (flag) { this.c(8); 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).l(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(); } 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; } }