/// <summary>
/// Perform a floodfill click at the specified (x,y) tile coords
/// </summary>
/// <param name="nMapX">Map click x-position (in tiles)</param>
/// <param name="nMapY">Map click y-position (in tiles)</param>
/// <returns>True if the map changes as a result of this click, false otherwise.</returns>
public bool FloodFillClick(int nMapX, int nMapY)
{
int tileOld, subpaletteOld;
m_map.GetTile(nMapX, nMapY, out tileOld, out subpaletteOld);
Sprite spriteOld = m_ss.FindSprite(tileOld);
Sprite spriteNew = m_ss.CurrentSprite;
int tileNew = spriteNew.FirstTileId;
int subpaletteNew = spriteNew.SubpaletteID;
// Sprite & tile & subpalette match - nothing to do.
if (tileOld == tileNew && subpaletteOld == subpaletteNew)
{
return(false);
}
// If the old/new sprite matches, then we're filling over the same sprite,
// but with the tiles offset. We need to first floodfill with another tile
// so that we can detect the sprite boundaries correctly.
if (spriteNew == spriteOld)
{
FloodFill_Sprite(nMapX, nMapY, spriteOld, subpaletteOld, null, -1, subpaletteOld);
FloodFill_Sprite(nMapX, nMapY, null, subpaletteOld, spriteNew, tileNew, subpaletteOld);
}
else
{
FloodFill_Sprite(nMapX, nMapY, spriteOld, subpaletteOld, spriteNew, tileNew, subpaletteNew);
}
return(true);
}
