anchor.diff:  // memory in Win32.
   
   import 'dart:ffi';
  -import 'dart:io';
   import 'dart:math' show Random;
   
   import 'package:ffi/ffi.dart';
  
positive.code:     setVectorToMemory();
      gameOverRow--;
      if (gameOverRow < 0) {
        gameover_update_complete();
        wipeDown = true;
      }
    }
  
negative.code:       } else if (direction.y == 1) {
          // down
          snakePoints[i].y += 1;
          if (snakePoints[i].y >= (bitmapHeight / 10).floor()) {
            snakePoints[i].y = 0;
          }
        } else if (direction.y == -1) {
  