# Sine Cosine Walk

Actionscript:
1. stage.frameRate = 30;
2. var footA:MovieClip = makeFoot(0);
3. var footB:MovieClip = makeFoot(Math.PI);
4.
5. addEventListener(Event.ENTER_FRAME, onLoop);
6. function onLoop(evt:Event):void {
7.      graphics.clear();
8.      graphics.lineStyle(0,0x000000);
9.      graphics.moveTo(footA.x, footA.y);
10.      graphics.curveTo(footA.x + 20, footA.y - 50, 200, 100);
11.      graphics.curveTo(footB.x + 20, footB.y - 50, footB.x, footB.y);
12. }
13.
14. function makeFoot(startAngle:Number):MovieClip {
15.     var mc:MovieClip = MovieClip(addChild(new MovieClip()));
16.     with(mc.graphics) beginFill(0x000000), curveTo(10,-10, 20, 0);
17.     mc.x = 200;
18.     mc.y = 200;
19.     mc.sx = mc.x;
20.     mc.sy = mc.y;
21.     mc.t = startAngle;
22.     mc.r = 50;
23.     mc.addEventListener(Event.ENTER_FRAME, onRunFoot);
24.     return mc;
25. }
26. function onRunFoot(evt:Event):void {
27.     var mc:MovieClip = MovieClip(evt.currentTarget);
28.      with(mc){
29.         x = sx + r * Math.cos(t);
30.         y = Math.min(sy, sy + r * Math.sin(t));
31.         rotation = sy - y;
32.         t += .15;
33.      }
34. }

This is a funny looking snippet that creates a very primitive walk cycle with the Graphics class and sine and cosine.

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