JavaScript двигатель

var x = 200;
draw = function() {
    background(255,255,255);
    ellipse(x, 200, 50, 50);
    if (keyIsPressed && keyCode === RIGHT){ //if right key pressed
            x += 5;
        }
        if (keyIsPressed && keyCode === LEFT){ //if left key pressed
            x -= 5;
        }
};
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