/// <summary>
/// Creates an affine/transformed sprite from a block of OAM data and the affine data with it
/// </summary>
public Sprite(Palette palette, Tileset tileset, OAM oam, OAM_Affine transform)
{
Size size = oam.GetDimensions();
Load(palette, tileset, new TileMap(oam.GetTileMap(size)), false, false);
int width = (oam.OBJMode == OAM_OBJMode.BigAffine) ? size.Width * 16 : size.Width * 8;
int height = (oam.OBJMode == OAM_OBJMode.BigAffine) ? size.Height * 16: size.Height * 8;
byte[] data = new byte[width * height];
int tileX, tileY;
int affX, affY;
int halfW = width / 2;
int halfH = height / 2;
for (int y = halfH * -1; y < halfH; y++)
{
for (int x = halfW * -1; x < halfW; x++)
{
affX = (int)(transform.Ux * x + transform.Vx * y) + size.Width * 4;
affY = (int)(transform.Uy * x + transform.Vy * y) + size.Height * 4;
if (affX < 0 || affX >= size.Width * 8)
{
continue;
}
if (affY < 0 || affY >= size.Height * 8)
{
continue;
}
tileX = affX / Tile.SIZE;
tileY = affY / Tile.SIZE;
int index = Tiles[tileX, tileY];
if (index < 0 || index >= Sheet.Count)
{
continue;
}
tileX = affX % Tile.SIZE;
tileY = affY % Tile.SIZE;
data[(halfW + x) + (halfH + y) * width] = (byte)Sheet[index][tileX, tileY];
}
}
Transform = new Bitmap(width, height, palette.ToBytes(false), data);
}
/// <summary>
/// Creates a sprite from a block of OAM data
/// </summary>
public Sprite(Palette palette, Tileset tileset, OAM oam)
{
Load(palette, tileset, new TileMap(oam.GetTileMap(oam.GetDimensions())), oam.FlipH, oam.FlipV);
}
