public static List <ColorPlus> LoadImagePalette(Color32[] colors)
{
Color32EqualityComparer comp = new Color32EqualityComparer();
HashSet <Color32> unique_hash = new HashSet <Color32>(colors, comp);
List <ColorPlus> transparent = new List <ColorPlus>();
List <ColorPlus> final_list = new List <ColorPlus>();
// cycle through colors and sort out transparent
foreach (Color32 hash_val in unique_hash)
{
if (hash_val.a < ImageUtilities.transparent_threshhold)
{
transparent.Add(new ColorPlus(hash_val));
}
else
{
final_list.Add(new ColorPlus(hash_val));
}
}
// shift transparent colors to end of list
final_list.AddRange(transparent);
return(final_list);
}
public static void SetOutputImage()
{
// ensure we received a valid colors array
if (input_palette.Count == 0)
{
// no image loaded
return;
}
if (output_palette.Count == 0)
{
// no palette, copy input and end function
output_image.texture = Instantiate(input_image.texture) as Texture2D;
return;
}
// get pixel data directly from input texture
Color32[] pixels = (input_image.mainTexture as Texture2D).GetPixels32(0);
var comp = new Color32EqualityComparer();
Dictionary <Color32, Color32> dict = new Dictionary <Color32, Color32>(comp);
foreach (ColorPlus c in input_palette)
{
dict.Add(c.color32, c.match);
}
// color replacement using dictionary lookup
for (int i = 0; i != pixels.Length; i++)
{
// perform color match and swap
dict.TryGetValue(pixels[i], out pixels[i]);
}
// apply changes directly to output texture
(output_image.mainTexture as Texture2D).SetPixels32(pixels);
(output_image.mainTexture as Texture2D).Apply(false);
}
