javascript - How to animate a ball becoming smaller in HTML5 canvas -


i'm trying make ball become increasingly smaller using html5 canvas. i've been able make grow larger, figured reverse simple. doing wrong here? console.log shows me values 11 0 decreasing 1. when x less 0, stops. ball doesn't change shape, , suspect because it's drawing smaller shapes on top of each other, perhaps? thought clearrect work that?

function draw2() {     console.log(x);     context2d.clearrect(0, 0, canvas.width, canvas.height);     context2d.arc(10, 10, x, 0, math.pi * 2, true);     context2d.fill();     x -= 1;     if (x < 0) {         clearinterval(s);        } }

a demo available at: http://www.chronicled.org/dev/test.html

thanks!

add context2d.beginpath(); beginning of draw2 (it wouldn't hurt have in draw)

the .fill filling whole path includes old arcs


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