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  Using IndexColorModel  (Read 1911 times)
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Offline rdcarvallo

Senior Devvie


Projects: 5
Exp: 15 years


2D Java games forever!


« Posted 2002-12-14 18:15:46 »

Hi,
 This is my first post here!
 I want to use Images with palettes (IndexColorModel), but looking into the API, I cannot find the way to change the ColorModel to an Image.
 I need this to make a sprite with cicling colors (like  Megaman 5's buster charge or Mariobros. star powerup)
 The method I'm using is creating a new image with the new palette and then copiying the Raster form the first image.
 Here is the code:
 
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   img = new BufferedImage(20, 30, BufferedImage.TYPE_BYTE_INDEXED, cm1);
    WritableRaster rast = cm1.createCompatibleWritableRaster(20, 30);
    rast.setPixels(0,0,20,30,spriteData);
    img.setData(rast);
    g.drawImage(img,0,0,this);
    img2 = new BufferedImage(20, 30, BufferedImage.TYPE_BYTE_INDEXED, cm2);
    img2.setData(rast);
    g.drawImage(img2,40,40,this);
 

 cm1 and cm2 are IndexColorModel Objects and spriteData is an array of index for the pixels in the image.

 Anyone knows how to do this without creting an Image everytime I need to change the color palette??

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