void OnCollisionEnter(Collision c)
 {
     if (c.gameObject.tag == "Obstacle")
     {
         // print("COLLISION");
         print(this.gameObject.name);
         Color hisColor = c.gameObject.GetComponent <Renderer>().material.color;
         Color myColor  = this.gameObject.GetComponent <Renderer>().material.color;
         if (hisColor == myColor)
         {
             // print("SAME MATERIAL");
             score += 10;
             if (!SoundManager.mute)
             {
                 scoreGainAudio.Play();
                 StartCoroutine(wait(scoreGainAudio.clip.length));
             }
         }
         else
         {
             score /= 2;
             if (!SoundManager.mute)
             {
                 scoreLossAudio.Play();
                 StartCoroutine(wait(scoreLossAudio.clip.length));
             }
             // print("Score " + score);
             if (score == 0)
             {
                 PlayerMove.SetStop(true);
                 deathMenu.Dead();
             }
         }
         GameObject.Destroy(c.gameObject);
     }
 }