Script API - v1.21.0
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    Class Container

    Represents a container that can hold sets of items. Used with entities such as Players, Chest Minecarts, Llamas, and more.

    let leftLocation = test.worldLocation({ x: 2, y: 2, z: 2 }); // left chest location
    let rightLocation = test.worldLocation({ x: 4, y: 2, z: 2 }); // right chest location

    const chestCart = test.spawn("chest_minecart", { x: 6, y: 2, z: 2 });

    let leftChestBlock = defaultDimension.getBlock(leftLocation);
    let rightChestBlock = defaultDimension.getBlock(rightLocation);

    leftChestBlock.setType(MinecraftBlockTypes.chest);
    rightChestBlock.setType(MinecraftBlockTypes.chest);

    const rightChestInventoryComp = rightChestBlock.getComponent("inventory");
    const leftChestInventoryComp = leftChestBlock.getComponent("inventory");
    const chestCartInventoryComp = chestCart.getComponent("inventory");

    const rightChestContainer = rightChestInventoryComp.container;
    const leftChestContainer = leftChestInventoryComp.container;
    const chestCartContainer = chestCartInventoryComp.container;

    rightChestContainer.setItem(0, new ItemStack(Items.apple, 10, 0));
    test.assert(rightChestContainer.getItem(0).id === "apple", "Expected apple in right container slot index 0");

    rightChestContainer.setItem(1, new ItemStack(Items.emerald, 10, 0));
    test.assert(rightChestContainer.getItem(1).id === "emerald", "Expected emerald in right container slot index 1");

    test.assert(rightChestContainer.size === 27, "Unexpected size: " + rightChestContainer.size);
    test.assert(
      rightChestContainer.emptySlotsCount === 25,
      "Unexpected emptySlotsCount: " + rightChestContainer.emptySlotsCount
    );

    const itemStack = rightChestContainer.getItem(0);
    test.assert(itemStack.id === "apple", "Expected apple");
    test.assert(itemStack.amount === 10, "Expected 10 apples");
    test.assert(itemStack.data === 0, "Expected 0 data");

    leftChestContainer.setItem(0, new ItemStack(Items.cake, 10, 0));

    rightChestContainer.transferItem(0, 4, chestCartContainer); // transfer the apple from the right chest to a chest cart
    rightChestContainer.swapItems(1, 0, leftChestContainer); // swap the cake and emerald

    test.assert(chestCartContainer.getItem(4).id === "apple", "Expected apple in left container slot index 4");
    test.assert(leftChestContainer.getItem(0).id === "emerald", "Expected emerald in left container slot index 0");
    test.assert(rightChestContainer.getItem(1).id === "cake", "Expected cake in right container slot index 1");
    Index

    Properties

    emptySlotsCount size

    Methods

    addItem clearAll getItem getSlot isValid moveItem setItem swapItems transferItem

    Properties

    emptySlotsCount: number

    Count of the slots in the container that are empty.

    Throws if the container is invalid.

    size: number

    The number of slots in this container. For example, a standard single-block chest has a size of 27. Note, a player's inventory container contains a total of 36 slots, 9 hotbar slots plus 27 inventory slots.

    Throws if the container is invalid.

    Methods

    • Parameters

      • itemStack: ItemStack

        The stack of items to add.

      Returns ItemStack

      Adds an item to the container. The item is placed in the first available slot(s) and can be stacked with existing items of the same type. Note, use Container.setItem if you wish to set the item in a particular slot.

      This function can't be called in read-only mode.

      This function can throw errors.

      import { EntityInventoryComponent, ItemStack, world } from "@minecraft/server";
      for (const player of world.getAllPlayers()) {
          const inventory = player.getComponent(
              "inventory"
          ) as EntityInventoryComponent;
          const item = new ItemStack("minecraft:diamond_sword", 10);
          inventory.container.addItem(item);
      }

    • Returns void

      Clears all inventory items in the container.

      This function can't be called in read-only mode.

      Throws if the container is invalid.

    • Parameters

      • slot: number

        Zero-based index of the slot to retrieve items from.

      Returns ItemStack

      Gets an ItemStack of the item at the specified slot. If the slot is empty, returns undefined. This method does not change or clear the contents of the specified slot. To get a reference to a particular slot, see Container.getSlot.

      Throws if the container is invalid or if the slot index is out of bounds.

      // A function that gets a copy of the first item in the player's hotbar
      import { Player, EntityInventoryComponent, ItemStack } from '@minecraft/server';

      function getFirstHotbarItem(player: Player): ItemStack | undefined {
          const inventory = player.getComponent(EntityInventoryComponent.componentId);
          if (inventory && inventory.container) {
              return inventory.container.getItem(0);
          }
          return undefined;
      }

    • Parameters

      • slot: number

        The index of the slot to return. This index must be within the bounds of the container.

      Returns ContainerSlot

      Returns a container slot. This acts as a reference to a slot at the given index for this container.

      Throws if the container is invalid or if the slot index is out of bounds.

    • Returns boolean

      Returns whether a container object (or the entity or block that this container is associated with) is still available for use in this context.

    • Parameters

      • fromSlot: number

        Zero-based index of the slot to transfer an item from, on this container.

      • toSlot: number

        Zero-based index of the slot to transfer an item to, on toContainer.

      • toContainer: Container

        Target container to transfer to. Note this can be the same container as the source.

      Returns void

      Moves an item from one slot to another, potentially across containers.

      This function can't be called in read-only mode.

      Throws if either this container or toContainer are invalid or if the fromSlot or toSlot indices out of bounds.

      // A function that moves an item from one slot of the player's inventory to another player's inventory
      import { Player, EntityComponentTypes } from '@minecraft/server';

      function moveBetweenPlayers(slotId: number, fromPlayer: Player, toPlayer: Player) {
          const fromInventory = fromPlayer.getComponent(EntityComponentTypes.Inventory);
          const toInventory = toPlayer.getComponent(EntityComponentTypes.Inventory);

          if (fromInventory && toInventory && fromInventory.container && toInventory.container) {
              fromInventory.container.moveItem(slotId, slotId, toInventory.container);
          }
      }

    • Parameters

      • slot: number

        Zero-based index of the slot to set an item at.

      • OptionalitemStack: ItemStack

        Stack of items to place within the specified slot. Setting itemStack to undefined will clear the slot.

      Returns void

      Sets an item stack within a particular slot.

      This function can't be called in read-only mode.

      Throws if the container is invalid or if the slot index is out of bounds.

      import { EntityInventoryComponent, ItemStack, world } from "@minecraft/server";
      for (const player of world.getAllPlayers()) {
          const inventory = player.getComponent(
              "inventory"
          ) as EntityInventoryComponent;
          const item = new ItemStack("minecraft:diamond_sword", 10);
          inventory.container.setItem(0, item);
      }

    • Parameters

      • slot: number

        Zero-based index of the slot to swap from this container.

      • otherSlot: number

        Zero-based index of the slot to swap with.

      • otherContainer: Container

        Target container to swap with. Note this can be the same container as this source.

      Returns void

      Swaps items between two different slots within containers.

      This function can't be called in read-only mode.

      Throws if either this container or otherContainer are invalid or if the slot or otherSlot are out of bounds.

      // A function that swaps an item from one slot of the player's inventory to another player's inventory
      import { Player, EntityComponentTypes } from '@minecraft/server';

      function swapBetweenPlayers(slotId: number, fromPlayer: Player, toPlayer: Player) {
          const fromInventory = fromPlayer.getComponent(EntityComponentTypes.Inventory);
          const toInventory = toPlayer.getComponent(EntityComponentTypes.Inventory);

          if (fromInventory && toInventory && fromInventory.container && toInventory.container) {
              fromInventory.container.swapItems(slotId, slotId, toInventory.container);
          }
      }

    • Parameters

      • fromSlot: number

        Zero-based index of the slot to transfer an item from, on this container.

      • toContainer: Container

        Target container to transfer to. Note this can be the same container as the source.

      Returns ItemStack

      An itemStack with the items that couldn't be transferred. Returns undefined if all items were transferred.

      Moves an item from one slot to another container, or to the first available slot in the same container.

      This function can't be called in read-only mode.

      Throws if either this container or toContainer are invalid or if the fromSlot or toSlot indices out of bounds.

      // A function that moves an item from one slot of the player's inventory to another player's inventory
      import { Player, EntityComponentTypes } from '@minecraft/server';

      function moveBetweenPlayers(slotId: number, fromPlayer: Player, toPlayer: Player) {
          const fromInventory = fromPlayer.getComponent(EntityComponentTypes.Inventory);
          const toInventory = toPlayer.getComponent(EntityComponentTypes.Inventory);

          if (fromInventory && toInventory && fromInventory.container && toInventory.container) {
              fromInventory.container.transferItem(slotId, toInventory.container);
          }
      }

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