duck

bool running = false;


function Update () {

    bool lastRunningState = running;
    running = (Mathf.Abs(Input.GetAxis("Horizontal")) > 0.1);

    if (lastRunningState != running) {
        if (runnning) {
            animation.CrossFade("Run");
        } else {
            animation.CrossFade("Idle");
        }
        lastRunningState = running;
    }
}