/// <summary>
/// Converts and adds the specified bitmap to the current tilemap, adding new tiles to the specified tileset.
/// </summary>
/// <param name="bmp">The bitmap to convert.</param>
/// <param name="tileset">The tileset to use.</param>
/// <param name="format">The tilemap format to use.</param>
/// <param name="reduce">If true, reduces the tilemap; otherwise, does not reduce.</param>
public void AddBitmap(Bitmap bmp, Tileset tileset, BitmapFormat format, bool reduce)
{
if (bmp == null)
{
throw new ArgumentNullException(nameof(bmp));
}
if (tileset == null)
{
throw new ArgumentNullException(nameof(tileset));
}
if (format == null)
{
throw new ArgumentNullException(nameof(format));
}
TileCutter cutter = new TileCutter(tileset.TileWidth, tileset.TileHeight);
foreach (Tile tile in cutter.CutTiles(bmp))
{
// Find existing tileset entry if reducing.
if (!reduce || !tileset.TryFindTileEntry(tile, out TileEntry te))
{
// Otherwise, create a new tileset entry.
te = tileset.AddTile(tile, format.CanFlipHorizontal, format.CanFlipVertical);
}
// Create new tilemap entry with original tile number.
te = new TileEntry(te.TileNumber, te.HFlip, te.VFlip, tile.PaletteNumber);
this.TileEntries.Add(te);
}
// Update the color format of the tileset
tileset.ColorFormat = format.ColorFormat;
tileset.IsIndexed = false;
}
public void AddBitmapIndexed(Bitmap bmp, Tileset tileset, PaletteSet palettes, BitmapFormat format, bool reduce)
{
if (bmp == null)
{
throw new ArgumentNullException(nameof(bmp));
}
if (tileset == null)
{
throw new ArgumentNullException(nameof(tileset));
}
if (palettes == null)
{
throw new ArgumentNullException(nameof(palettes));
}
if (format == null)
{
throw new ArgumentNullException(nameof(format));
}
TileCutter cutter = new TileCutter(tileset.TileWidth, tileset.TileHeight);
Tile[] indexedTiles = new Tile[palettes.Count];
foreach (Tile tile in cutter.CutTiles(bmp))
{
// Generate indexed tiles for each palette.
int indexedCount = tile.GenerateIndexedTiles(palettes, indexedTiles);
TileEntry?te = null;
if (reduce)
{
// See if this tile can match an already indexed tile.
for (int i = 0; i < indexedCount; i++)
{
Tile indexedTile = indexedTiles[i];
if (tileset.TryFindTileEntry(indexedTile, out TileEntry candidate))
{
// Create new tilemap entry with original tile number and flips, but new palette.
te = new TileEntry(candidate.TileNumber, candidate.HFlip, candidate.VFlip, indexedTile.PaletteNumber);
break;
}
}
}
if (te == null && indexedCount > 0)
{
Tile indexedTile = indexedTiles[0].Clone();
TileEntry newEntry = tileset.AddTile(indexedTile, format.CanFlipHorizontal, format.CanFlipVertical);
te = new TileEntry(newEntry.TileNumber, newEntry.HFlip, newEntry.VFlip, indexedTile.PaletteNumber);
}
if (te == null)
{
// Could not index tile.
te = default(TileEntry);
}
this.Add((TileEntry)te);
}
// Update the color format of the tileset to the indexed format.
tileset.ColorFormat = format.ColorFormat;
tileset.IsIndexed = true;
}