The Bug:
Strongholds and mineshafts can intersect one another.
Here is an example:
Version: 1.21.5
Seed: 7555437788059119351
Coordinates: /execute in minecraft:overworld run tp @s 1510.83 7.00 826.63 -427.14 -4.52
Steps to Reproduce:
Generate a world with the seed provided above and teleport to the given coordinates.
Look closely at the generation of the stronghold and mineshaft.
Observed Behavior:
Strongholds and mineshafts can intersect one another.
Expected Behavior:
Strongholds and mineshafts would not be able to intersect one another.
Attachments
Comments 11
Do you see any issues with the latest snapshot? I loaded up the example you gave, and none of the issues were found.
Moesh, this can currently not be tested as strongholds in general don't generate in the snapshot, see MC-236618.
Hi, I'm still able to reproduce this issue in 21w38a, now that strongholds can once again generate. Here are some extra details regarding this problem and of where this can be seen in 21w38a.
The Bug:
Strongholds and mineshafts can occasionally intersect one another.
Steps to Reproduce:
Enter the following seed and coordinates.
Version 21w38a
Seed: 8961625545290334832
Coordinates: /execute in minecraft:overworld run tp @s 2382.91 -41.00 421.85 -475.01 -23.51
→ ❌ Notice how strongholds and mineshafts can occasionally intersect one another.
Expected Behavior:
The expected behavior would be that strongholds and mineshafts can not intersect one another.
Can confirm in 1.19.
Version: 1.19
Seed: 4373241205666815302
Coordinates: /execute in minecraft:overworld run tp @s -18809.96 22.50 -13876.70 -16.87 15.46
Can confirm in 1.19.3.
Seed: 6048912123575570488
Coordinates: /execute in minecraft:overworld run tp @s -11166.09 25.00 -455.70 -29.25 40.64
I don't think I have seen mineshafts overwriting the features of strongholds on Java Edition (at least in modern versions of the game). From what I have seen, the generation mentioned here is caused by code that stops the walls, floors and ceilings (but not the actual features of the room) from replacing air blocks (as in MC-216881). The portal room is the only room that generates fully intact in midair, and it theoretically would overwrite both air and solid blocks of mineshafts based on this assumption.
World generation feature.