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Thread: Touch/Swipe Size

  1. #1

    Touch/Swipe Size

    I wonder how to calculate pixels of swipe length using ZenGL?

    The game would apply force based on the touch size line. I would like to calculate that line from touch start to the touch end and get the pixels size value.

  2. #2
    Use simple vector maths:
    Code:
      X := StartP.x - EndP.x;
      Y := StartP.y - EndP.y;
      Strength := SQR ((x*x) + (y*y));
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