[Freeciv-Dev] (PR#2982) iso-view FOW drawing bug

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

[jdorje - Thu Oct  2 22:11:21 2003]:

> [jdorje - Mon Feb  3 07:18:41 2003]:
> 
> > Sometimes when drawing is done in iso-view, the fog-of-war is not
updated.
> > 
> > Typically this occurrs when a unit enters a fogged area.  Clearly the
> > area is no longer fogged, but this is not immediately updated.  Instead
> > the unit itself is drawn.  This means parts of the surrounding tiles are
> > drawn, and these are unfogged.  The end result is that the area is still
> > fogged, but the box around the unit is unfogged.
> > 
> > This is difficult to reproduce.  Occasionally it happens with the GTK
> > client at the very beginning of a game.  With a lot of buffering of the
> > drawing, it seems it can happen all the time.
> 
> Now since there are no spurious redraws in center_tile_mapcanvas, it
> always happens.  The redraw needs to be done somewhere else.

The initial tiles are sent while the client is still in the
CLIENT_WAITING_FOR_GAME_START_STATE state.  Thus there is no map update
for them.

jason