public ISpriteRun SetPixels(IDataModel model, ModelDelta token, int page, int[,] pixels)
{
var data = Decompress(model, Start, allowLengthErrors: true);
page %= Pages;
var pageLength = SpriteFormat.TileWidth * SpriteFormat.TileHeight * 8 * SpriteFormat.BitsPerPixel;
SpriteRun.SetPixels(data, page * pageLength, pixels, SpriteFormat.BitsPerPixel);
var newModelData = Compress(data, 0, data.Length);
var newRun = (ISpriteRun)model.RelocateForExpansion(token, this, newModelData.Count);
for (int i = 0; i < newModelData.Count; i++)
{
token.ChangeData(model, newRun.Start + i, newModelData[i]);
}
for (int i = newModelData.Count; i < Length; i++)
{
token.ChangeData(model, newRun.Start + i, 0xFF);
}
newRun = new LzSpriteRun(SpriteFormat, model, newRun.Start, newRun.PointerSources);
model.ObserveRunWritten(token, newRun);
return(newRun);
}
public static bool TryParseSpriteFormat(string pointerFormat, out SpriteFormat spriteFormat)
{
spriteFormat = default;
if (!pointerFormat.StartsWith("`ucs") || !pointerFormat.EndsWith("`"))
{
return(false);
}
return(LzSpriteRun.TryParseDimensions(pointerFormat, out spriteFormat));
}
public LzSpriteRun IncreaseHeight(int tiles, ModelDelta token)
{
var data = Decompress(Model, Start);
var longerData = data.Concat(new byte[SpriteFormat.ExpectedByteLength / SpriteFormat.TileHeight * tiles]).ToArray();
var newModelData = Compress(longerData, 0, longerData.Length);
var newRun = Model.RelocateForExpansion(token, this, newModelData.Count);
for (int i = 0; i < newModelData.Count; i++)
{
token.ChangeData(Model, newRun.Start + i, newModelData[i]);
}
for (int i = newModelData.Count; i < Length; i++)
{
token.ChangeData(Model, newRun.Start + i, 0xFF);
}
var newFormat = new SpriteFormat(SpriteFormat.BitsPerPixel, SpriteFormat.TileWidth, SpriteFormat.TileHeight + tiles, SpriteFormat.PaletteHint, SpriteFormat.AllowLengthErrors);
newRun = new LzSpriteRun(newFormat, Model, newRun.Start, newRun.PointerSources);
Model.ObserveRunWritten(token, newRun);
return(newRun);
}
