generate method

@override Widget generate(Context context)

Implementation

@override
Widget generate(Context context) {
  return For(
    to: 26,
    create: (int i) {
      // leave out used slots
      if (i > 0 && i < 4) return Comment.Null();
      if (i > 9 && i < 13) return Comment.Null();
      if (i > 18 && i < 22) return Comment.Null();

      if (i == 15) {
        return If.not(
            // not empty
            // and not Result item
            Condition.and([
              Block.nbt(
                _block,
                nbt: {
                  'Items': [
                    {'Slot': Byte(15), 'Count': Byte(0)}
                  ]
                },
                strNbt: '{Items:[{Slot:15b,Count:0b}]}',
              ),
              Block.nbt(
                _block,
                nbt: {
                  'Items': [
                    {
                      'Slot': Byte(15),
                      'tag': {'${context.packId}Result': 1}
                    }
                  ]
                },
              ),
            ]),
            then: [
              // clear it and drop it
              Data.modify(
                Entity.Selected(),
                path: 'HandItems[0]',
                modify: DataModify.set(Location.here(),
                    fromPath: 'Items[{Slot:15b}]'),
              ),
              Data.remove(Location.here(), path: 'Items[{Slot:15b}]'),
            ]);
      }

      var replaceItem = placeholder;

      if (guiModel != null &&
          guiModel!.slot != null &&
          guiModel!.slot!.id == i) {
        replaceItem = guiModel!;
      }

      var throwItem = If.not(
        Condition.and([
          // not empty
          // and not Placeholder item
          Block.nbt(
            _block,
            nbt: {
              'Items': [
                {'Slot': Byte(i), 'Count': Byte(0)}
              ]
            },
          ),
          Block.nbt(
            _block,
            nbt: {
              'Items': [
                {
                  'Slot': Byte(i),
                  'tag': {'${context.packId}Placeholder': 1},
                }
              ],
            },
          ),
        ]),
        then: [
          // Drop the Item
          Data.modify(
            Entity.Selected(),
            path: 'HandItems[0]',
            modify: DataModify.set(
              Location.here(),
              fromPath: 'Items[{Slot:${i}b}]',
            ),
          )
        ],
      );

      return For.of(
        [
          // drops item
          throwItem,
          If.not(
            // not Placeholder
            Block.nbt(
              _block,
              nbt: {
                'Items': [
                  {'Slot': Byte(i)}
                ],
                'tag': {'${context.packId}Placeholder': 1}
              },
            ),
            then: [
              // set Placeholder
              ReplaceItem.block(
                Location.here(),
                slot: Slot.chest(i + 1),
                item: replaceItem,
              ),
            ],
          ),
        ],
      );
    },
  );
}