Live -- piece disappears from one player's view

[Tim_M]

@donstone

I have a repeatable problem
– No Retreat! module v0.4 – (in development, about to be released)
– Vassal 3.1.16

Sequence
– playing live
– player 1 sends a unit to any of the boxes (e.g., Destroyed box)
– player 1 drags the unit back onto the board
– player 1 sees the unit move
– player 2 does NOT see the unit move – he sees it as remaining in the box

Underlying
– “send to box” is Send To Location to Zone on Selected Map

This all sounded very familiar so did some digging

This is what I remember

logfile/sync issues

Do I need to report this as a bug? If so, I’m not sure how to do that.

for which bug 2979 was fixed? but it only applied to GKC, it may need same fix for STL perhaps or some such…?

Possibly related as it describes similar behavior (I think was resolved also though)

Bug in StackMetrics.merge

Since this forum gets more attention from developers I am posting here again what is in the Bug forum: vassalengine.org/forums/viewtopic.php?t=2098 In a situation where first piece has been moved to point x,y by using placeOrMerge it is placed as a single GamePiece and not a stack. When a second piece is moved to the same point by using placeOrMerge, a new stack is created, and an AddPiece command recorded for the stack followed by a MoveCommand for the second piece. On undo this chain is re…

Bug in StackMetrics.merge

GameModule.getGameModule().getGameState().addPiece(fixedParent); fixed.getMap().addPiece(fixedParent); I think those commands are executed inside Map.placeAt invoked in next line: comm = comm.append(fixedParent.getMap().placeAt(fixedParent, fixedParent.getPosition())); in my version, lines 1980-1981: addPiece(piece); GameModule.getGameModule().getGameState().addPiece(piece); so they are not needed, that’s why I had: comm = comm.append(fixed.getMap().placeAt(fixedParent, fixed.getPosition())…

Bug in StackMetrics.merge (disappearing pieces)

I had this problem a long ago, and even reported it here I think, but it was not solved. What happens is when a Command generated using map.placeOrMerge(gp, p) is undone pieces sometimes disappear. They are not destroyed, rather the map is no longer aware it has to display such piece. I think I have nailed when it happens, because other combinations work, unfortunately I can’t show you exact piece of code where it happens (it would require a lot of reading of code that I haven’t written myse…