[http://sourceforge.net/p/ufoai/bugs/3461 Item 3461] imported from sourceforge.net tracker on 2013-01-28 20:10:24

This was done with git master of 26 december.
When a tried to move a soldier in a place where it was no alien because it was not visible. I see the alien only when i was on it.
I then tried to kill the alien but don't was able because the game doesn't allow to shoot on the same cell. I then moved one cell away and killed the alien.

I think that the fact that it was possible to have a player and a alien on the same cell is because the alien was not visible before because of the map where from above you cannot see below.
===== Comments Ported from Sourceforge =====

====== nabla6464 (2013-01-10 19:58:44.386000) ======

Ufoconsol.log file
====== aduke1 (2013-01-11 01:51:07.284000) ======

- **assigned_to**: Duke

====== aduke1 (2013-01-12 03:19:20.578000) ======

Nabla, you're right. The lack of visibility causes this problem.

We could enhance the visibility rules a bit, but that will never give us a 100% solution.

No good idea for a perfect solution yet.
====== nabla6464 (2013-01-12 11:58:14.535000) ======

This is not a big bug because it doesn't break the game.

A solution could be to force visibility of alien that are in a neighbour accessible cell.

Another solution would be to check when we move recursively that it doesn't go to a occuped cell (regardless of visibility). If it's the case cancel the move to the previous cell. And show the alien with possibly a message of the kind "x has bumped on a alien".

====== aduke1 (2013-01-13 03:07:40.164000) ======

Nabla, your ideas are not bad, although pretty hard to implement due to the current visibility and movement mechanics.

Anyway, there is a second situation where we need this:
Actor stands on breakable -> breakable is detroyed -> actor falls down onto another actor.