Wall Tutorial

[Expelliarmus]

Anyone know any good wall tutorials/ examples? You know? the ones that create a line (with like 2+ different segments) perpendicular to the facing of the caster? I would prefer it to be in vJASS, tho GUI/JASS is still good...

Thanks

 

[AceHart]

Hm... a bit vague a description.

For inspiration, there was the "Any-directional chicken repulsing wall", in post #12 here:
http://www.thehelper.net/forums/showthread.php?t=73576

 

[Expelliarmus]

Lol, you see, I've read this earlier today, and got this inspiration to learn how you got the formula:

set x1 = GetLocationX(l) + WallLength * Cos(a + 90 * bj_DEGTORAD) * 1.0
set y1 = GetLocationY(l) + WallLength * Sin(a + 90 * bj_DEGTORAD) * 1.0
set u1 = CreateUnit(p, WallEndID, x1, y1, a * bj_RADTODEG  - 90)

I see it is like a polar projection except the angle bit, which + 1.507 rad and * a number once more (which I tested, controls their distance ).

I just hoped that examples/ tutorial would explain (or link to me) to me how those Sine/Cosine work in finding the angles.