Tis

Minecraft 25w35a

Several Copper Golem fixes and a new protocol for managing servers. See the changelog.

Copper Golem

Pathfinding

Once the copper golem creates a path to its target chest, it will check if that chest is reachable every tick:

  • The block at the end of the path must be within a 3x3x3 cube surrounding the chest.
  • If the golem were at the ending block’s middle, its eyes (at y=0.8125) must have line of sight with the chest block’s center (at (0.5, 0.5, 0.5)). Only collision hitboxes obstruct line of sight.

If the target chest is not reachable, the chest’s location is added to a list of unreachable chest locations. An unreachable chest is no longer considered a “visited” chest, so chests the copper golem cannot reach do not count towards the 10-chest limit. Once 50 chests cannot be reached and the golem cannot reach a 51st chest, the copper golem will reset all visited and unreachable chests and wait 7 seconds before trying again.

Previously, copper golems would give up reaching its target chest if the following conditions were met. Now, copper golems will not give up.

Previous give up conditions
  • The current copper golem’s hitbox is less than 0.5 blocks from the chest’s hitbox in both the X and Z axes (chessboard distance)
  • The copper golem’s position is within 0.499 blocks (inclusive, previously was 0.5 blocks) to 2 blocks (exclusive) below the chest


A new behavior memory was added:

  • List unreachable_transport_block_positions: List of unreachable chest positions
    • Compound Tag: A block position
      • Int Array pos: The block coordinates [x, y, z]
      • String dimension: The dimension as a namespaced ID

Chest Opening

In order to actually open a chest, the copper golem uses different conditions, which have changed since last snapshot:

To reach a chest horizontally, the copper golem’s hitbox must be less than 1 block from the chest’s hitbox in both the X and Z axes (chessboard distance). While the copper golem is pathfinding to the chest, its range is reduced to 0.2 blocks.

Copper golems can reach a chest vertically if their hitbox is within 0.5 blocks of the chest’s collision box.

  • To reach a chest 2 blocks higher, the copper golem must stand on anything taller than 0.52 blocks tall
  • To reach a chest 1 block lower, the copper golem must stand on anything shorter than 0.375 blocks tall