Repairing NPC camera when in low areas

Peeg re-enabled npc camera, but we found things go wrong if the npc position has negative height, such as in hydlaa plaza. I made a small correction to the strange formula, which does not add a negative value, but just takes the top of the characters.

Again, no bug report for this :). Just preparing you all for the spam you will get when everyone dives into the code :P

[Khaki, 2008-11-04 02:45:28]

Has this been tested and verified?

On 2008/11/03 21:40:36, Lanarel wrote:
>

[Lanarel, 2008-11-04 07:17:57]

On 2008/11/04 02:45:28, Khaki wrote:
> Has this been tested and verified?
> 
> On 2008/11/03 21:40:36, Lanarel wrote:
> >

Both Peeg and I did testing with various NPCs placed in several places
(including Ynnwn and dwarf standing on top of a hydlaa roof :) ).

[Khaki, 2008-11-04 16:12:50]

Looks good to me.

On 2008/11/04 07:17:57, Lanarel wrote:
> On 2008/11/04 02:45:28, Khaki wrote:
> > Has this been tested and verified?
> > 
> > On 2008/11/03 21:40:36, Lanarel wrote:
> > >
> 
> Both Peeg and I did testing with various NPCs placed in several places
> (including Ynnwn and dwarf standing on top of a hydlaa roof :) ).

[Lanarel, 2008-11-07 14:01:08]

committed by welall (without the comments I forgot to remove :) ).