Mojira Archive
MC-41631

Tall entities (enderman, ghast, large slime/magma cube, open shulker) don't activate some tripwire from another sub-chunk

The bug

When an entity is inside a sub-chunk (which is marked with blue lines when you have F3+G enabled) and it touches tripwire from sub-chunk above, this tripwire won't activate if it is two blocks higher than the border of the sub-chunk (for example a ghast at y=207 (16*13-1) does not trigger tripwire at y=210 (16*13+2)), but triggers tripwire at y=209 and 208.
Currently affects:

  • Ghast
  • Enderman
  • Slime and Magma Cube with Size:5 or bigger
  • Open Shulker

Also happens horizontally - in this case only 3 tripwire lines can be activated and it only affects slimes/magma cubes with Size:12 or bigger

Steps to Reproduce

1. Create a Superflat world with the preset

3;207*minecraft:stone;0;

2. Create a ghast cage (blocks around a 4x4x4 area to trap a spawned ghast) at ground level.
3. Place a line of tripwire through the top of the inner area.
4. Spawn a ghast inside.

Cannot Reproduce

Mark McKenzie

2013-12-06, 03:30 PM

2024-12-20, 12:15 AM

2024-12-20, 12:15 AM

11

13

Confirmed

Collision, Entities, Redstone

ghast, hitbox, mob, tripwire

Minecraft 1.6.4 - 1.19.1Minecraft 1.6.4, Minecraft 1.7.2, Minecraft 1.7.3, Minecraft 14w31a, Minecraft 1.8.3, Minecraft 1.11.2, Minecraft 17w13b, 1.15.2, 20w06a, 20w07a, 1.17.1, 1.19.1

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