Ah! I see. Here is an example:
WIDTH_WALL_FORMAT_2 = 500
HEIGHT_WALL_FORMAT_2 = 375
NUM_DISTANT_WALLS_2 = 7
A2_WALL_RECT = 2,2,34,213
B2_WALL_RECT = 150,2,182,213
C2_WALL_RECT = 336,2,368,213
This says that if the wall image (containing all the wall
images for varying distances, etc) is 500 by 375 then
the NUM-DISTANT_WALLS is 7, etc.
So the engine should be able to redefine the wall slot
according to the image size when a $SET_WALL function
specifies a new wall slot.
Manikus: Get me a mini-mod and I bet I can fix this.