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  1. Minecraft: Java Edition
  2. MC-41631

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

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Details

    • Bug
    • Status: Reopened
    • Resolution: Unresolved
    • Minecraft 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
    • None
    • Confirmed
    • (Unassigned)

    Description

      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

      Also happens horisontally - 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.

      Attachments

        1. 2013-12-06_07.13.07.png
          2013-12-06_07.13.07.png
          42 kB
        2. 2015-03-11_23.40.58.png
          2015-03-11_23.40.58.png
          242 kB
        3. 2015-03-13_19.22.55.png
          2015-03-13_19.22.55.png
          173 kB
        4. 2015-03-14_10.30.33.png
          2015-03-14_10.30.33.png
          407 kB
        5. 2015-03-14_10.30.56.png
          2015-03-14_10.30.56.png
          225 kB
        6. 2017-04-02_20.36.25.png
          2017-04-02_20.36.25.png
          261 kB
        7. 2021-08-13_10.01.45.png
          2021-08-13_10.01.45.png
          541 kB
        8. 2021-08-13_10.01.58.png
          2021-08-13_10.01.58.png
          110 kB
        9. Ghast + Tripwire.zip
          167 kB
        10. Ghast Tripwire (world).zip
          209 kB
        11. Ghast Tripwire Sieve.zip
          186 kB

        Activity

          People

            Unassigned Unassigned
            mckenziemc Mark McKenzie
            Votes:
            6 Vote for this issue
            Watchers:
            8 Start watching this issue

            Dates

              Created:
              Updated:
              CHK: