dinobot.js

(function(Runner) {
    var ctx = document.getElementsByTagName('canvas')[0].getContext('2d');
    var pixelEnv = ctx.getImageData(1, 1, 1, 1).data;
    var distantion = 150;

    Runner.instance_.play();
    Runner.instance_.tRex.startJump(1);

    function getPixelData(x, y) {
        return ctx.getImageData(x, y, 1, 1).data;
    }

    function isPixelsIdenty(env, read) {
        return env[0] === read[0] && env[1] === read[1] && env[2] === read[2];
    }

    function jump() {
        Runner.instance_.tRex.startJump(1);
    }

    function duck() {
        Runner.instance_.tRex.setDuck(1);
    }

    function run() {
        var bottomRead = getPixelData(distantion, 110);
        var middleRead = getPixelData(distantion, 82);

        var isBottomBarrier = !isPixelsIdenty(pixelEnv, bottomRead);
        var isMiddleBarrier = !isPixelsIdenty(pixelEnv, middleRead);

        if (isBottomBarrier) {
            jump();
        } else if (isMiddleBarrier) {
            duck();
        }

       // run();
    }

    //window.requestAnimationFrame(run);
    //run();
    setInterval(function() {
        run();
    }, 1);
})(Runner);