First attempt to walk

md013_walk1.js

var sr = new Avatar("squirrel");
var x=0, y=0;
var up=true, pause=false;

var draw = function() {
    background(255);
    if ( up && sr.getAngle(1)<120 ) {
        sr.rotate(1, 1);
        sr.rotate(3, -1);
    } else {
        up = false;
    }
    if ( !up && sr.getAngle(1)>0 ) {
        sr.rotate(1, -1);
        sr.rotate(3, 1);
    } else {
        up = true;
    }
    sr.draw(x,200+y);
    x = (x + 1) % 400;
    y = 10*sin(10*x);
};

var mouseClicked = function() {
    if (pause) {
        loop();
    } else {
        noLoop();
    }
    pause = !pause;
};