Re: SmallMap issue(s)

[Gervase Lam]

> Subject: Re: SmallMap issue(s)
> From: Ingo Ruhnke <address@hidden>
> Date: 10 Oct 2002 13:38:12 +0200

> Gervase Lam <address@hidden> writes:
> > As to indiana-yingwan.xml, one way to do it is as well as each
> > "object" having draw_smallmap(), they could also have
> > init_smallmap(unsigned char* cbuffer). This could/would write on to
> > the initial small map canvas.
>
> The problem is that there are two ways to 'draw' on the smallmap, one
> is to simple draw a surface above the colmap on the screen (via
> draw_smallmap()), the other would be indirectly to draw on the colmap,
> which then gets converted to the smallmap surface (no member function,
> smallmap does that itself). Well, the first is easy to solve, the
> second is quite a lot more difficult, since you can't just draw to the
> colmap without changing it.

In SmallMap::init(), buffer is a pointer to the colmap.  cbuffer is just a 
pointer to the Canvas that will eventually be the smallmap that will be 
displayed on the screen.  Therefore you can alter cbuffer without causing 
colmap problems.

Thanks,
Gervase.