I think that a 5 level cliff at a certain location would be non-pathable at the level of Z that is the same as the top of a 1 level cliff. If this is what you are talking about, I assume that you would have to use that get the Z of a point JASS call, then compare it to the Z of whatever point that is either above it or below it (or equal to it), here, I'll write it out in pseudo code.
Code:
function iszpathable takes real X, real Y, real Z returns boolean
if (GetPointZ(X, Y) < Z)
// the Z point is above the terrain, this is probably pathable, depending on how you decide to handle it
// return true //probably
if (GetPointZ(X, Y) > Z)
//the Z point is below it, do nothing
return false
if (GetPointZ(X, Y) == Z)
return true
endfunction
That's just some pseudo code, I can't write out the full thing because I gotta go right now. I hope that helps/ is what you want.
