void OnTriggerEnter(Collider other)
 {
     if(other.tag == "Player" && state == MOVINGSTATE.wait) {
         state = MOVINGSTATE.start;
         startTime = Time.time;
     }
 }
 void Update()
 {
     switch(state) {
     case MOVINGSTATE.start:
         if((Time.time - startTime) > 1.5) {
             transform.parent.animation.Play("MovingPlatform");
             state = MOVINGSTATE.moving;
         }
         break;
     case MOVINGSTATE.moving:
         if(!transform.parent.animation.isPlaying) {
             startTime = Time.time;
             state = MOVINGSTATE.ended;
         }
         break;
     }
 }