GoalLookAtBlock uses collision boxes. It should use selection boxes.

[BF5258]

GoalLookAtBlock.isEnd uses world.raycast to check if the target is visible from the current node. world.raycast only checks for collision boxes, not selection boxes.

These pages explain the difference:
Collision box
Selection box

Some blocks do not have collision boxes. Without a collision box to detect, the raycast will always fail. This prevents the agent recognizing when the goal has been reached. This prevents mineflayer-collectblocks collecting these blocks.

Code:

mineflayer-pathfinder\lib\goals.js line 195:
const rayPos = this.world.raycast(startPos, targetPos.clone().subtract(startPos).normalize(), this.reach)?.position
prismarine-world\worldsync.js line 52:
const intersect = iter.intersect(block.shapes, position)

Steps to reproduce:

• place a block with no collision box
• const goal = new mineflayer_pathfinder_1.goals.GoalLookAtBlock(blockWithNoCollision, bot.world); bot.pathfinder.goto(goal);

Expected result:

Bot looks at the block's selection box.

Observed result:

Bot moves towards the block but never marks the goal as complete.

Affected blocks include but are not limited to:

• water
• pressure plates
• buttons
• fire
• torches

Possible steps to fix:

• Add block.selectionShapes with data about selection boxes.
• Update the documentation of block.shapes to make the difference between selection and collision boxes clearer.
• Add an option to WorldSync.raycast to check for selection boxes instead of collision or create a matcher for this.

[BF5258]

Does minecraft-data have data for selection boxes?