@jsprismarine/prismarine/dist/inventory/Inventory.es.js

Dedicated Minecraft Bedrock Edition server written in TypeScript

import Air from '../block/blocks/Air.es.js';
import ContainerEntry from './ContainerEntry.es.js';

class Inventory {
  /**
   * Number of slots.
   * @private
   */
  slots;
  /**
   * <Slot number, Item in the slot>
   * @private
   */
  content = /* @__PURE__ */ new Map();
  constructor(slots = 0, items = []) {
    this.slots = slots;
    this.setItems(items);
  }
  /**
   * Get window id.
   * @todo: implement this.
   */
  getId() {
    return 0;
  }
  /**
   * Adds an array of items into the inventory.
   * @param {ContainerEntry[]} [items=[]] - the entires.
   */
  setItems(items = []) {
    if (items.length > this.slots) {
      items = items.slice(0, this.slots);
    }
    for (let i = 0; i < this.getSlotCount(); i++) {
      this.setItem(i, items[i] ?? new ContainerEntry({ item: new Air() }));
    }
  }
  /**
   * Returns all the items inside the inventory.
   * @param {boolean} [includeAir=false] - if air should be accounted for.
   * @returns {ContainerEntry[]} the entries.
   */
  getItems(includeAir = false) {
    if (includeAir) {
      return Array.from(this.content.values());
    }
    return Array.from(this.content.values()).filter((item) => !(item.getItem() instanceof Air));
  }
  /**
   * Sets an item in the inventory content.
   * @param {number} slot - the slot.
   * @param {ContainerEntry} item - the item.
   */
  setItem(slot, item) {
    if (slot > this.slots) {
      return false;
    }
    this.content.set(slot, item);
    return true;
  }
  /**
   * Add an item to the first available slot
   * @param {ContainerEntry} item - the item.
   */
  addItem(item) {
    for (let i = 0; i < this.slots; i++)
      if (!this.content.has(i)) {
        this.setItem(i, item);
        return;
      }
  }
  /**
   * Returns the item in the slot.
   * @param {number} slot - the slot.
   * @returns {Item | Air} the item in the slot.
   */
  getItem(slot) {
    if (this.content.has(slot)) {
      return this.content.get(slot).getItem();
    }
    return new Air();
  }
  /**
   * Removes an item from a slot and returns it.
   * @param {number} slot - the slot.
   */
  removeItem(slot) {
    if (!this.content.has(slot)) {
      return new Air();
    }
    const item = this.content.get(slot);
    this.content.delete(slot);
    return item;
  }
  /**
   * Returns the slot count of the inventory.
   * @returns {number} the slot count.
   */
  getSlotCount() {
    return this.slots;
  }
}

export { Inventory as default };
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