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  1. Minecraft: Java Edition
  2. MC-127474

Waterloggable blocks retain their waterlogged state when moved with pistons or slime blocks

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Minecraft 18w21a
    • Minecraft 18w11a, Minecraft 18w16a
    • None
    • Confirmed

      Summary: Moving a waterlogged block moves the water source with the block rather than leaving the water where it is. The inverse is also true, moving a dry block into a water source removes the water source rather than producing a waterlogged block.

      Steps to reproduce: Place a waterlogged block such as an inverted slab, then move it with a piston or piston and slime block(s).

      What should happen: The block should be moved out of the water source, leaving the water source behind.

      What actually happens: The block and water source move together.

      Commentary: This behavior is illogical, because if you use a piston to pull a waterlogged block up out of the water, the "natural" result would be to get a dry block above the water and leave the water behind. Likewise, if you push a waterloggable block into a water source block, one would expect it to become waterlogged.

      It seems blocks retain their waterlogged state when moved. A possible fix would be for a moved block to check to see if the destination position is a water source (or another waterlogged block) or not, and change its waterlogged state to match that of the destination location.

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            Unassigned Unassigned
            Lukeonia1 Lukeonia1
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