public void SetBytes(byte[] data)
{
if (data.Length != OverlayTiles.Size)
{
throw new ArgumentException("Incorrect overlay tile data size", nameof(data));
}
this.Clear();
for (int overlayTileIndex = 0; overlayTileIndex < OverlayTiles.MaxTileCount; overlayTileIndex++)
{
int index = overlayTileIndex * 3;
if (data[index + 1] == 0xFF &&
data[index + 2] == 0xFF)
{
break;
}
OverlayTileSize size = this.sizes[(data[index] & 0xC0) >> 6];
OverlayTilePattern pattern = this.patterns[data[index] & 0x3F];
if (pattern.Size != size)
{
// The overlay tile size is different from the expected pattern size,
// ignore this overlay tile, the editor cannot handle it.
continue;
}
int x = (data[index + 1] & 0x7F);
int y = ((data[index + 2] & 0x3F) << 1) + ((data[index + 1] & 0x80) >> 7);
Point location = new Point(x, y);
this.Add(new OverlayTile(pattern, location));
}
}
public OverlayTilePattern(byte[] data, OverlayTileSize size)
{
if (data.Length != size.Width * size.Height)
{
throw new ArgumentException("Data does not match size.");
}
this.Size = size;
this.SetBytes(data);
this.Modified = false;
}
private OverlayTileSize[] LoadPatternSizes(OverlayTileSizes sizes)
{
// TODO: Get this from the ROM, if even possible.
// It is unlikely that this information is available anywhere in the ROM since
// each overlay tile indicates which size to use when displayed at runtime.
// Maybe the size of each pattern should be saved in the epic zone when we start supporting updating the patterns.
byte[] sizeIndexes = new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1 };
OverlayTileSize[] sizeArray = new OverlayTileSize[this.Count];
for (int i = 0; i < this.Count; i++)
{
sizeArray[i] = sizes[sizeIndexes[i]];
}
return(sizeArray);
}
