/// <summary>
/// Set a graphic tile.
/// </summary>
/// <param name="tileNum">Tile number to set.</param>
/// <param name="mode">Palette mode.</param>
/// <param name="pal">Palette.</param>
/// <param name="paletteNum">Palette number.</param>
/// <param name="data">Bitmap data.</param>
/// <param name="dataXPos">Bitmap data X position.</param>
/// <param name="dataYPos">Bitmap data Y position.</param>
public void SetTile(int tileNum, PaletteMode mode, NCL pal, int paletteNum, Bitmap data, int dataXPos, int dataYPos)
{
List <byte> newTileData = GenTile(mode, pal, paletteNum, data, ref dataXPos, ref dataYPos);
int dataOff = tileNum * 64;
if (mode == PaletteMode.Bpp4)
{
dataOff = tileNum * 32;
}
for (int i = 0; i < newTileData.Count; i++)
{
Data[dataOff + i] = newTileData[i];
}
}
/// <summary>
/// Generate a tile.
/// </summary>
/// <param name="mode">Palette mode.</param>
/// <param name="pal">Palette.</param>
/// <param name="paletteNum">Palette number.</param>
/// <param name="data">Bitmap data.</param>
/// <param name="xPtr">X position in bitmap.</param>
/// <param name="yPtr">Y position in bitmap.</param>
/// <returns>Generated tile.</returns>
private List <byte> GenTile(PaletteMode mode, NCL pal, int paletteNum, Bitmap data, ref int xPtr, ref int yPtr)
{
List <byte> ret = new List <byte>();
bool isFirstNybble = true;
int numPixelsDone = 0;
int scanX = 0;
int scanY = 0;
while (numPixelsDone < 64)
{
if (mode == PaletteMode.Bpp4)
{
if (isFirstNybble)
{
ret.Add((byte)(pal.GetClosestColor(data.GetPixel(xPtr + scanX, yPtr + scanY), paletteNum, mode) << 4));
}
else
{
ret[ret.Count - 1] |= (byte)pal.GetClosestColor(data.GetPixel(xPtr + scanX, yPtr + scanY), paletteNum, mode);
numPixelsDone++;
scanX++;
}
isFirstNybble = !isFirstNybble;
}
else
{
ret.Add((byte)pal.GetClosestColor(data.GetPixel(xPtr + scanX, yPtr + scanY), paletteNum, mode));
numPixelsDone++;
scanX++;
}
if (scanX == 8)
{
scanX = 0;
scanY++;
}
}
xPtr += 8;
yPtr += 8;
return(ret);
}
