[mx] mouse angle detect

programming flash
1

ok so i have been trying to detect the mouse angle… kinda figuring it out on my own to learn new stuff and get a better understanding of actionscript, but ive kinda run into a problem i cant figure out.

here is the range of angles i get


    0
    |      
    |
90-----90
    |
    |
    0

here is the range i want


  90
   |
   |
180-0
   |
   |
  270

and finally here is my code


_root.onLoad = function(){
	var a, b;
	var convert;
	var ang;
}

_root.onEnterFrame = function(){
	xCoord = (_xmouse - 200);
	yCoord = (_ymouse - 200)*-1;
	calcAngle();
	
}

_root.calcAngle = function(){
	a = Math.abs(xCoord);
	b = Math.abs(yCoord);
	ang = Math.atan(a/b);
	convert = 180/Math.PI;
	mouseAngle = ang*convert;
}

any help would be greatly appreciated, thank you

2

ok… i think im getting what you want…
try this.
you should get angles like this o hope :stuck_out_tongue: i never had time to test it but iv done some work on this sort of thing before

        270
          ^
           |
           |

180<------->0
|
|
/
90

_root.calcAngle = function(){
a = Math.abs(xCoord);
b = Math.abs(yCoord);
convert = 180/Math.PI;
mouseAng = Math.atan(b/a)*convert;
}

that should work but im not sure :S

3

i got it to work in the range i wanted it, but thx for the help anyways