From a bug report...): pushing a boulder onto a level teleporter trap
could repeat the
You push the boulder and suddenly it disappears!
message. That would happen whenever the teleport destination was the same
as the current level (20% chance). The boulder wasn't being moved onto the
trap location so was still present when the pushing code tried to handle
the next one in the pile. I've changed so that pushing stops whenever a
pushed boulder is affected by a trap, and also so that the boulder gets
moved as usual when a level teleporter fails to send it somewhere.
I've always thought it's pretty strange that pushing ever operates
on more than one boulder in the same turn in any situation, but I haven't
changed that for the non-trap cases. (Usually the first boulder pushed
ends up blocking the second one, so you get a "you try to move it, but
in vain" message which seems odd since you just moved one. But if there's
a pool of water or lava in the path, you can actually push multiple
boulders successfully.)
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