anchor.diff:          // left
           snakePoints[i].x -= 1;
           if (snakePoints[i].x < 0) {
  -          snakePoints[i].x = (bitmapWidth / 10);
  +          snakePoints[i].x = (bitmapWidth / 10).floor();
           }
         } else if (direction.y == 1) {
           // down
  
positive.code:         // up
          snakePoints[i].y -= 1;
          if (snakePoints[i].y < 0) {
            snakePoints[i].y = (bitmapHeight / 10) - 1;
          }
        }
      } else {
  
negative.code:     stderr.writeln('CreateWindowEx failed with error: ${GetLastError()}');
      exit(-1);
    } else {
      SetTimer(hWnd, IDT_TIMER1, timerAmount, nullptr);
  
      isRunning = true;
      while (isRunning) {
  