## I think I’ve decided what to do

Posted by
December 16th, 2010 10:39 pm

I want to make a first person dungeon crawler a la Eye of the Beholder. Of course, having said that, I’ve jinxed any chances of a suitable theme winning. Making an interesting tile based first person game about evolution might be an interesting challenge..

tl;dr: vote elements!

### 6 Responses to “I think I’ve decided what to do”

1. Billy Wenge-Murphy says:

Haven’t you attempted that numerous times before?

That’s right, I’ve seen your site even before you were “The Minecraft guy”* I KNOW YOUR SECRETS

(*rather you were the “Infinite Mario Bros.” guy ðŸ˜‰ )

• Notch says:

Yep, and never finished one. This is my chance!

• GreaseMonkey says:

TBQH this probably calls for some good ol’ software rendering…

v{x|y} = ray velocity for the {x|y} direction, calculated by a {sin|cos}*screen_width/2 + {cos|-sin}*screen_x (screen_x = 0 is in the centre of the screen)
g{x|y} = direction we’re going in for the {x|y} direction (-1 or 1)
av{x|y} = abs(v{x|y})

cs = cell size (personally I use 256 but if you’re using floats then 1.0 should do)
cx,cy = current cell we’re in
d{x|y} = distance to {x|y} wall
d(istance) = t(ime) * v(elocity) so t(ime) = d(istance) / v(elocity)
in this case we use av{x|y}, so
t{x|y} = d{x|y} / av{x|y}
t = total time elapsed

if tx == 0 or (ty != 0 and tx < ty) then we hit the x wall first, else we hit the y wall first.
We can compare that as dx*avy < dy*avx.

To avoid having to correct fisheye, for hitting the x wall we use tx instead of dx:
t += cs*tx (t += (cs*dx)/vx)
dy -= vy*tx (t += (vy*dx)/vx)
cx += gx
dx = cs

The column height is (screen_width*cs)/t.

Of course you probably knew all that. If I'm wrong about that, then feel free to use what you didn't know already

If you do the REALLY classic "3D maze" ( as in http://www.youtube.com/watch?v=VrmX-IJKPDo ), that would be hillarious.

2. aus_mike says:

Have you made anything for ludam dare other than meta-gun that we can see/play?

• Notch says:

Well, yes. I made Breaking The Tower, The (something) Arcology Incident, Bunny Press and MetaGun. Maybe something else, but I forget.

3. dock says:

About time you finished one! ðŸ˜€
I think it’s a solid genre to work around, good luck!

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