public static SymbolsImage Combine(SymbolsImage bottom, SymbolsImage top)
{
if (bottom.Width != top.Width || bottom.Height != top.Height)
{
throw new ArgumentException($"Cannot combine images {bottom.Width}x{bottom.Height} and {top.Width}x{top.Height}");
}
var result = new SymbolsImage(bottom.Width, bottom.Height);
for (var x = 0; x < bottom.Width; x++)
{
for (var y = 0; y < bottom.Height; y++)
{
var pixel = result[x, y];
var bottomPixel = bottom[x, y];
var topPixel = top[x, y];
pixel.Symbol = topPixel.Symbol ?? bottomPixel.Symbol;
pixel.Color = topPixel.Symbol.HasValue ? topPixel.Color : bottomPixel.Color;
pixel.BackgroundColor = topPixel.BackgroundColor ?? bottomPixel.BackgroundColor;
}
}
return(result);
}
public static SymbolsImage Recolor(SymbolsImage image, Dictionary <Color, Color> palette)
{
var result = new SymbolsImage(image.Width, image.Height);
for (var x = 0; x < image.Width; x++)
{
for (var y = 0; y < image.Height; y++)
{
var pixel = result[x, y];
var originalPixel = image[x, y];
pixel.Symbol = originalPixel.Symbol;
if (originalPixel.Color.HasValue)
{
pixel.Color = palette.ContainsKey(originalPixel.Color.Value)
? palette[originalPixel.Color.Value]
: originalPixel.Color;
}
else
{
pixel.Color = null;
}
if (originalPixel.BackgroundColor.HasValue)
{
pixel.BackgroundColor = palette.ContainsKey(originalPixel.BackgroundColor.Value)
? palette[originalPixel.BackgroundColor.Value]
: originalPixel.BackgroundColor;
}
else
{
pixel.BackgroundColor = null;
}
}
}
return(result);
}
public static void SaveToFile(SymbolsImage image, Stream fileStream)
{
var savingManager = new XmlSavingManager();
savingManager.SaveToFile(image.Width, image.Height, image.pixels, fileStream);
}
