public static ImmutablePalette PaletteFromStream(Stream s, PaletteFromDrFileInfo info)
{
var colors = new uint[Palette.Size];
var headerName = s.ReadASCII(4);
var headerVersion = s.ReadInt32();
if (headerName != "PALS")
{
throw new InvalidDataException("Palette header was not PALS");
}
if (headerVersion != 0x0102)
{
throw new InvalidDataException("Palette version `{0}` was incorrect (expected `0x0102`)".F(headerVersion));
}
// Data is made up of 3x256 bytes, each ranging 0-63. Data is grouped by channel.
var list = new List <byte>();
for (int i = 0; i < Palette.Size * 6; i++)
{
list.Add(s.ReadUInt8());
}
var rList = list.Take(256).ToList();
var gList = list.Skip(256).Take(256).ToList();
var bList = list.Skip(512).Take(256).ToList();
for (int i = 0; i < Palette.Size; i++)
{
// Index 0 should always be completely transparent/background color
if (i == 0)
{
colors[i] = 0;
}
else if (i < 160 || i == 255)
{
colors[i] = (uint)Color.FromArgb(
Math.Min((rList[i] * info.StandardPaletteMultiplier) + info.Gamma, 255),
Math.Min((gList[i] * info.StandardPaletteMultiplier) + info.Gamma, 255),
Math.Min((bList[i] * info.StandardPaletteMultiplier) + info.Gamma, 255)).ToArgb();
}
else
{
colors[i] = (uint)Color.FromArgb(
Math.Min((rList[i] * info.TerrainPaletteMultiplier) + info.Gamma, 255),
Math.Min((gList[i] * info.TerrainPaletteMultiplier) + info.Gamma, 255),
Math.Min((bList[i] * info.TerrainPaletteMultiplier) + info.Gamma, 255)).ToArgb();
}
}
// Shadow hack
colors[info.ShadowIndex] = (uint)Color.FromArgb(112, 0, 0, 0).ToArgb();
return(new ImmutablePalette(colors));
}
public PaletteFromDrFile(World world, PaletteFromDrFileInfo info)
{
this.world = world;
this.info = info;
}
