public static void FloodFill( this IGrid<Rgba> grid, Point pt, Rgba targetColor, Rgba replacementColor )
{
var q = new Queue<Point>();
q.Enqueue( pt );
while( q.Count > 0 ) {
var n = q.Dequeue();
if( !ColorMatch( grid[ n.X, n.Y ], targetColor ) )
continue;
Point w = n, e = new Point( n.X + 1, n.Y );
while( ( w.X > 0 ) && ColorMatch( grid[ w.X, w.Y ], targetColor ) ) {
grid[ w.X, w.Y ] = replacementColor;
if( ( w.Y > 0 ) && ColorMatch( grid[ w.X, w.Y - 1 ], targetColor ) )
q.Enqueue( new Point( w.X, w.Y - 1 ) );
if( ( w.Y < grid.Height - 1 ) && ColorMatch( grid[ w.X, w.Y + 1 ], targetColor ) )
q.Enqueue( new Point( w.X, w.Y + 1 ) );
w.X--;
}
while( ( e.X < grid.Width - 1 ) && ColorMatch( grid[ e.X, e.Y ], targetColor ) ) {
grid[ e.X, e.Y ] = replacementColor;
if( ( e.Y > 0 ) && ColorMatch( grid[ e.X, e.Y - 1 ], targetColor ) )
q.Enqueue( new Point( e.X, e.Y - 1 ) );
if( ( e.Y < grid.Height - 1 ) && ColorMatch( grid[ e.X, e.Y + 1 ], targetColor ) )
q.Enqueue( new Point( e.X, e.Y + 1 ) );
e.X++;
}
}
}
public static void SetRgba( this BitmapData bitmapData, Rgba rgba, int x, int y )
{
//32bpp
var offset = y * bitmapData.Stride + ( 4 * x );
Marshal.WriteByte( bitmapData.Scan0, offset + 2, rgba.Red );
Marshal.WriteByte( bitmapData.Scan0, offset + 1, rgba.Green );
Marshal.WriteByte( bitmapData.Scan0, offset, rgba.Blue );
Marshal.WriteByte( bitmapData.Scan0, offset + 3, rgba.Alpha );
}
private static bool ColorMatch( Rgba a, Rgba b )
{
return a.Equals( b );
}
private void Dump()
{
var color = new Grid<Rgba>(_map.Size);
color.SetEach(
(rgba, point) =>
{
var cBack = GetBackgroundColor(point, true);
var fore = ConsoleToRgbaConverter.FormatColor(GetForegroundColor(new Point(), point, true));
var back =
_map.SilentPaths[point] ? ConsoleToRgbaConverter.FormatColor(cBack).Average(new Rgba(0, 255, 0))
: ConsoleToRgbaConverter.FormatColor(cBack);
if (cBack == ConsoleColor.DarkGreen && _map.Trees[point] != ".")
{
back = new Rgba(0, 255, 0);
var noiseToLightness = ((_map.Noise[point] / 255.0) * 0.5) + 0.125;
return back.SetBrightness(noiseToLightness * back.ToHsla().Lightness);
}
return back.Average(fore, 2);
}
);
File.WriteAllText("map.ppm", color.ToPpm());
color.SetEach(
(rgba, point) => _map.Seen[point] ? rgba : new Rgba(0, 0, 0).Average(rgba, 2)
);
File.WriteAllText("seen.ppm", color.ToPpm());
File.WriteAllText("noise.pgm", _map.Noise.ToPgm());
File.WriteAllText("reachable.pbm", _map.Reachable.ToPbm());
File.WriteAllText("blocks.pbm", _map.BlocksPlayer.ToPbm());
}