Raycasting woes :-(

Ooh, the graphics programming forum, this is a rarely visited hideout for me Ahem, anyway, I merely popped in here because when I asked for help on raycasting in the general programming forum I got a fairly lousy response . Basically, i'm in the process of writing a raycaster (NOT tracer, caster as in like Wolf3d) but i'm having real problems getting it to work properly (i'm having problems with tan and my angles i think...). I've rewritten it twice, and this time i'm doing much better than before, using look up tables and much neater functions, but i'm still having major problems although I think my horizontal / vertical intersection checking routines are pretty much fine... Basically, has anyone here ever written a simple raycaster, *preferably* in DOS, compiling under DJGPP and using the Allegro library... and I mean really simple... the one i've done is only about 350 lines, and I know that's enough because it's all implemented... No textures or anything, just drawing a line for a column when needed... I'm getting really pissed off now, it's holding me up Anyway, if you have, and want to send it to me, reply, email or icq me (ICQ preferably)... I just want to see where i'm going wrong! Cheers all Nick - Head Designer, Llamasoft.net -- Visit our website... Llamasoft.net Games, goodies and ingenuity Edited by - Llamasoft.net on 9/19/00 3:12:53 PM