When I click, my enemy doesnt lose health...

 if(playerDistance <= 81){
          if(!attacking){
              Invoke("ApplyDamage", 3);
              attacking= true;
          }
          if(takeDamage){
              var hit : RaycastHit;
              if(Input.GetMouseButtonDown(0)){
                    if(Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), hit, 200)){
                     if(hit.collider== Harakiri){
                              health --;
                      }
                  }
              }
          }
      }

  var Harakiri : GameObject;
 var health =3;
 var takeDamage : boolean;
 var playerDistance : int;
 var attacking: boolean;
 
 playerDistance = Vector3.Distance(Player.transform.position, transform.position);

I get no console error and no run error, but when I click, the enemy doesnt receive damage!!!!