gistfile1.js

    document.onkeydown = function(event) {
      var game_piece, _i, _j, _k, _l, _len, _len2, _len3, _len4, _len5, _len6, _m, _n;
      switch (event.keyCode) {
        case 37:
          for (_i = 0, _len = game_pieces.length; _i < _len; _i++) {
            game_piece = game_pieces[_i];
            game_piece.pan_left();
          }
          break;
        case 38:
          for (_j = 0, _len2 = game_pieces.length; _j < _len2; _j++) {
            game_piece = game_pieces[_j];
            game_piece.pan_up();
          }
          break;
        case 39:
          for (_k = 0, _len3 = game_pieces.length; _k < _len3; _k++) {
            game_piece = game_pieces[_k];
            game_piece.pan_right();
          }
          break;
        case 40:
          for (_l = 0, _len4 = game_pieces.length; _l < _len4; _l++) {
            game_piece = game_pieces[_l];
            game_piece.pan_down();
          }
          break;
        case 189:
          for (_m = 0, _len5 = game_pieces.length; _m < _len5; _m++) {
            game_piece = game_pieces[_m];
            game_piece.zoom_out();
          }
          break;
        case 187:
          for (_n = 0, _len6 = game_pieces.length; _n < _len6; _n++) {
            game_piece = game_pieces[_n];
            game_piece.zoom_in();
          }
      }
      return the_screen.refresh(game_pieces);
    };