onClipEvent (keyDown) {                             // KeyEvents movieClip 
      var key = Key.getCode();
      if (key == Key.SHIFT) {  
        key = Key.UP;
        _root.running = true;
        _root.score.text = 'Arrow keys direct shots';
      } else if (_root.running == false) return;
        
      
      if (key == Key.SPACE) { 
        if (_root.projectile._visible == false) {
          if (_root.direction != 0) {
            _root.projectile._x = _root.avatar._x + _root.direction * 15 - 5;
            _root.projectile._y = _root.avatar._y;
            _root.projectile.direction = _root.direction;
            _root.bullet.fire(_root.projectile);
            _root.projectile._visible = true;
          }
        }
      } else if (key == Key.DOWN) {
            _root.grid.drawGrid(_root.avatar, 4, 5, 
             Array(0,1,1,0,
                   1,1,1,1,
                   0,1,1,0,
                   1,0,0,1,
                   1,0,0,1));
      } else if (key == Key.UP) {
            _root.direction = 0;
            if (_root.avatar.x < 0) _root.avatar.x = -_root.avatar.x;
            
            _root.grid.drawGrid(_root.avatar, 4, 5, 
                Array(0,1,1,0,
                      1,1,1,1,
                      0,1,1,0,
                      1,0,0,1,
                      1,0,0,1));
      } else if (key == Key.LEFT) {
              _root.direction = -1;
              _root.grid.drawGrid(_root.avatar, 4, 5, 
                    Array(0,0,1,1,
                          0,0,1,1,
                          1,1,1,1,
                          0,0,1,1, 
                          0,0,1,1));
              _root.avatar._x -= 5;
              if (_root.avatar._x < 0) _root.clear();
              
     } else if (key == Key.RIGHT) {  
                _root.direction = 1;
                _root.grid.drawGrid(_root.avatar, 4, 5, 
                    Array(1,1,0,0,
                          1,1,0,0,
                          1,1,1,1,
                          1,1,0,0,
                          1,1,0,0));
                _root.avatar._x += 5;
     }
}

onClipEvent (mouseDown) { startDrag(_root.avatar, true); }

onClipEvent (mouseUp) { stopDrag(); }