Matthias Domin, 28. August 1998

RAYCAST.O shows a simple moving-through-a-corridor effect.

Use joypad-up to move forward, joypad-down to move backward.
Use joypad-left to move to the left side of the corridor,
and joypad-right to move to the right side of the corridor.

Ok, ok, the texture-mapping-use isn't correct, but it's a first
approach.

The corridor-walls are build up by 80 vertical sprites, each
scaled to be 2 pixels wide. The action point of the stripes is
in their (vertical) mid. Look into SPR_DATA.H for details
about the sprite-stripes.

I have altered the produced ST.PAL to RAYCAST.PAL to have some
nicer colours above the 4. colours.

