Any way to optimize MapPalette.getDistance()?

Discussion in 'Plugin Development' started by Cirno, May 9, 2015.

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  1. Offline

    Cirno

  2. Offline

    megamichiel

    What I would do to get the distance between something like that is this:
    Code:
    public double getDistance(Color c1, Color c2) {
      double red = c2.getRed() - c1.getRed();
      double green = c2.getGreen() - c1.getGreen();
      double blue = c2.getBlue() - c1.getBlue();
      return Math.sqrt(red * red + green * green + blue * blue);
    }
    I'm not sure if it's the best way but it seems pretty good for me (It's the same method the Location class uses for distance(otherLoc) :p
     
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    blablubbabc

    @megamichiel

    The linked method calculates a different kind of distance.

    @Cirno

    I don't see any heavy operations in that method. Maybe you could optimize it by calling it less often instead:
    If you are for example converting lots of images to those minecraft colors, you might check if you could, maybe even asynchronously, pre-calculate those, before you start displaying them. And if your usecase includes displaying the same images again later then maybe also store the result (those color bytes) of those images.
     
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    1Rogue Retired Staff

    Cache, don't Thread.
     
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