[crossfire] New manhole archetype WIP (accepting help)

[Kevin R. Bulgrien]

> I have committed a work-in-progress archetype for a multi-tile manhole.
> To test the animation, and as a starter, the manhole is implemented as
> a HOLE (object type 94) so that I could learn how to do animations and
> could work off of a working example.
>
> The archetype is a 64 x 64 bit graphic.  I have also include a .xcf
> source file that is layered and has even more elements to produce
> additional manholes once the animation problem is able to be
> worked around.
>
> My archetypes are based on arch/trunk/connect/Hole/pit.arc, but I had
> to mangle the manhole_closed_1 archetype to get a working animation.
>
> This is all documented in arch/trunk/dev/wip/manhole/README, and a test
> case is set up as arch/trunk/dev/wip/manhole/world_105_115.patch.
>
> It appears I may be the first to try creating a multi-tile HOLE, and
> possibly the first to try to create any multi-tile connected animation.
>
> I could use some help determining if I have borked the .arc file in some
> way, or if perhaps the system just does not support such use of multi-
> tile graphics in animations.  Any takers?

Ryo pointed out I didn't actually say the animation did not work properly.

Say the anim is set up like this:

anim
manhole.111
manhole.112
manhole.113
manhole.114
mina

Then the only case where animation occurs is for the normally closed case
where the head face starts as manhole.114.

One would think that the non- head pieces should also be set to manhole.114
so that they form a correct picture, but when this is done, no animation is
possible.  The non-head pieces must be set to manhole.111 for the animation
to work.  Since the non-head pieces do not match the head, however, the
64 x 64 bit graphic is incorrect.

Also, say the head and hole are at x,y, when in the configuration where the
animation works, the head, and animated manhole, is displayed at at x-1,y-1
though the hole function still operates at x,y.  In cases where the animation
does not work, the hole function and the manhole are both at x,y.

I cannot seem to get the animation to work at all for the normally open
case where the head is manhole.111.

The test case in SVN does show both a functional normally closed hole with an
incorrect animation, and a functional normally open hole with no working
animation.

Kevin