public int delete(ItemStack template, int amount) {
Key key = Key.of(template);
Element e = _elements.get(key);
log.debug("take", "template", template, "key", key, "e", e);
if (e == null) return 0;
int taken = e.take(amount);
_total = Math.max(0, _total - taken);
return taken;
}
public boolean allowed(ItemStack stack) {
log.trace("allowed", "template", stack, "size", stack == null ? 0 : stack.stackSize);
Key key = Key.of(stack);
Element e = _elements.get(key);
if (e == null || !e.whitelisted()) return false;
if (e.count() + stack.stackSize > _maxPerKey) return false;
if (_total + stack.stackSize > _maxTotal) return false;
return true;
}
public void deny(ItemStack template) {
Key key = Key.of(template);
Element e = _elements.get(key);
log.debug("deny", "template", template, "key", key, "e", e);
if (e == null || !e.whitelisted()) return;
log.debug("deny: whitelisted: removing...", "empty", e.empty());
e.whitelisted(false);
_whitelist.remove(key);
if (e.empty()) _elements.remove(key);
}
/** Inserts the target stack and returns what didn't fit. */
public ItemStack put(ItemStack stack) {
int amount = Math.min(_max - _size, stack.stackSize);
if (amount <= 0) return stack;
Key k = Key.of(stack);
Integer current = _elements.get(k);
_elements.put(k, current == null ? amount : current + amount);
_size += amount;
stack.splitStack(amount);
return stack.stackSize > 0 ? stack : null;
}
public ItemStack take(ItemStack template, int amount) {
Key k = Key.of(template);
Integer count = _elements.get(k);
if (count == null) return null;
ItemStack stack = k.stack().copy();
stack.stackSize =
Math.min(stack.getMaxStackSize(), Math.min(SLOT_STACK_LIMIT, Math.min(amount, count)));
_size -= stack.stackSize;
if (stack.stackSize >= count) _elements.remove(k);
else _elements.put(k, count - stack.stackSize);
return stack;
}
public ItemStack put(ItemStack stack) {
log.debug("put", "stack", stack, "size", stack.stackSize);
if (stack == null) return null;
Key key = Key.of(stack);
Element e = _elements.get(key);
if (e == null) return stack;
int amount = stack.stackSize;
amount = Math.min(amount, _maxTotal - _total);
amount = e.put(amount, _maxPerKey);
if (amount == 0) return stack;
_total += amount;
log.debug("put: done", "amount", amount);
return stack.splitStack(amount);
}
public boolean allow(ItemStack template) {
log.debug("allow", "template", template);
if (_whitelist.size() >= _maxKeys) return false;
Key key = Key.of(template);
Element e = _elements.get(key);
if (e == null) {
e = Element.of(key, 0, true);
_elements.put(key, e);
_whitelist.add(key);
} else if (!e.whitelisted()) {
e.whitelisted(true);
_whitelist.add(key);
}
return true;
}
public boolean has(ItemStack template) {
Key key = Key.of(template);
Element e = _elements.get(key);
log.debug("has", "template", template, "key", key, "e", e);
return e != null && !e.empty();
}
public static Key fromNbt(NBTTagCompound tag) {
return Key.of(ItemHelper.readItemStackFromNBT(tag));
}