public static bool TryParseDimensions(string format, out SpriteFormat spriteFormat)
{
spriteFormat = default;
var formatContent = format.Substring(4, format.Length - 5); // snip leading "`xxx" and trailing "`"
var hintSplit = formatContent.Split('|');
var dimensionsAsText = hintSplit[0].Split('x');
if (dimensionsAsText.Length != 3)
{
return(false);
}
var allowLengthErrors = dimensionsAsText[2].EndsWith("!");
if (allowLengthErrors)
{
dimensionsAsText[2] = dimensionsAsText[2].Substring(0, dimensionsAsText[2].Length - 1);
}
if (!int.TryParse(dimensionsAsText[0], out var bitsPerPixel))
{
return(false);
}
if (!int.TryParse(dimensionsAsText[1], out var width))
{
return(false);
}
if (!int.TryParse(dimensionsAsText[2], out var height))
{
return(false);
}
var hint = hintSplit.Length == 2 ? hintSplit[1] : null;
spriteFormat = new SpriteFormat(bitsPerPixel, width, height, hint, allowLengthErrors);
return(true);
}
public static bool TryParseSpriteFormat(string pointerFormat, out SpriteFormat spriteFormat)
{
spriteFormat = default;
if (!pointerFormat.StartsWith("`lzs") || !pointerFormat.EndsWith("`"))
{
return(false);
}
return(TryParseDimensions(pointerFormat, out spriteFormat));
}
public SpriteRun(int start, SpriteFormat format, SortedSpan <int> sources = null) : base(start, sources)
{
SpriteFormat = format;
bitsPerPixel = format.BitsPerPixel;
tileWidth = format.TileWidth;
tileHeight = format.TileHeight;
Length = tileWidth * tileHeight * bitsPerPixel * 8;
FormatString = $"`ucs{bitsPerPixel}x{tileWidth}x{tileHeight}";
if (!string.IsNullOrEmpty(format.PaletteHint))
{
FormatString += "|" + format.PaletteHint;
}
FormatString += "`";
}
public LzSpriteRun(SpriteFormat spriteFormat, IDataModel data, int start, SortedSpan <int> sources = null)
: base(data, start, spriteFormat.AllowLengthErrors, sources)
{
SpriteFormat = spriteFormat;
if (spriteFormat.ExpectedByteLength > DecompressedLength)
{
InvalidateLength();
}
var hintContent = string.Empty;
if (!string.IsNullOrEmpty(spriteFormat.PaletteHint))
{
hintContent += "|" + spriteFormat.PaletteHint;
}
FormatString = $"`lzs{spriteFormat.BitsPerPixel}x{spriteFormat.TileWidth}x{spriteFormat.TileHeight}{hintContent}`";
}
public TilemapRun(IDataModel model, int start, TilemapFormat format, SortedSpan <int> sources = null) : base(start, sources)
{
Model = model;
Format = format;
string hint = null;
var address = Model.GetAddressFromAnchor(new NoDataChangeDeltaModel(), -1, Format.MatchingTileset);
if (address >= 0 && address < Model.Count)
{
var tileset = Model.GetNextRun(address) as ISpriteRun;
if (tileset == null)
{
tileset = Model.GetNextRun(arrayTilesetAddress) as ISpriteRun;
}
if (tileset != null && !(tileset is LzTilemapRun))
{
hint = tileset.SpriteFormat.PaletteHint;
}
}
SpriteFormat = new SpriteFormat(format.BitsPerPixel, format.TileWidth, format.TileHeight, hint);
}
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);
}
public ISpriteRun Duplicate(SpriteFormat newFormat)
{
throw new System.NotImplementedException();
}
public ISpriteRun Duplicate(SpriteFormat format) => new LzSpriteRun(format, Model, Start, PointerSources);
public ISpriteRun Duplicate(SpriteFormat format) => new LzTilesetRun(new TilesetFormat(format.BitsPerPixel, TilesetFormat.Tiles, TilesetFormat.MaxTiles, format.PaletteHint), Model, Start, PointerSources);
public ISpriteRun Duplicate(SpriteFormat format) => new SpriteRun(Start, format, PointerSources);
public ISpriteRun Duplicate(SpriteFormat newFormat) => new SpriteRun(model, Start, newFormat, PointerSources);