[Freeciv-Dev] Re: different iso drawing algorithms

[Jason Short <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

On Sun, 2002-12-15 at 06:54, Raimar Falke wrote:
> On Sat, Dec 14, 2002 at 06:06:27PM -0500, Jason Short wrote:
> > On Sat, 2002-12-14 at 17:49, Raimar Falke wrote:
> > > On Sat, Dec 14, 2002 at 05:14:46PM -0500, Jason Short wrote:

> > > > - Below-animation gfx versus above-animation gfx.  Since the city
> > > > descriptions are normally drawn above units, it makes sense that they
> > > > should be drawn above unit animations.  Extending this idea, we can put
> > > > all animation gfx (including nukes, combat, etc.) on the same layer,
> > > > with graphics below and above.
> > > 
> > > I don't see what this buys us.
> > 
> > This gives better drawing quality!
> 
> It is possible to draw the animation on the first backing store. It
> may cause some extra refreshes but these are local (4 tiles for a
> move), uncommon and you also don't get flicker with this. Advantage is
> that you don't need a third layer which is most of the time empty and
> increase the cost of the normal draws.

Here I am not talking about flicker but about having the texts not
disappear when single-tile updates and animations happen.  I do not know
of any other way to do this besides having a separate buffer.

jason