/// <summary>
///
/// </summary>
/// <param name="newDistance"></param>
public void SetDistanceIfLower(DistanceEntry newDistance)
{
if (newDistance < this)
{
DistanceX = newDistance.DistanceX;
DistanceY = newDistance.DistanceY;
}
}
/// <summary>
///
/// </summary>
/// <param name="NewDistance"></param>
public void SetDistanceIfLower(DistanceEntry NewDistance)
{
if (NewDistance < this)
{
this.DistanceX = NewDistance.DistanceX;
this.DistanceY = NewDistance.DistanceY;
}
}
/// <summary>
///
/// </summary>
/// <param name="NewDistance"></param>
public void SetDistanceIfLower(DistanceEntry NewDistance)
{
if (NewDistance < this)
{
this.DistanceX = NewDistance.DistanceX;
this.DistanceY = NewDistance.DistanceY;
}
}
/// <summary>
///
/// </summary>
/// <param name="Mask"></param>
/// <returns></returns>
static public DistanceEntry[,] GetDistanceMap(bool[,] Mask)
{
int Width = Mask.GetLength(0);
int Height = Mask.GetLength(1);
var DistanceMap = new DistanceEntry[Width, Height];
var Row = new DistanceEntry[Width];
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
DistanceMap[x, y] = new DistanceEntry(1000, 1000);
}
}
var Pass1 = Range(0, Height - 1);
var Pass2 = Range(Height - 1, 0);
foreach (var PassIterator in new[] { Pass1, Pass2 })
//foreach (var PassIterator in new[] { Pass1 })
{
for (int n = 0; n < Row.Length; n++) Row[n] = new DistanceEntry(1000, 1000);
//for (int y = 0; y < Height; y++)
foreach (var y in PassIterator)
{
for (int x = 0; x < Width; x++)
{
if (Mask[x, y])
{
// Inner
Row[x] = new DistanceEntry(0, 0);
// Left edge
if (x > 0 && !Mask[x - 1, y])
{
int DistanceX = 0, DistanceY = 0;
for (int x2 = x - 1; x2 >= 0; x2--)
{
if (Mask[x2, y]) break;
DistanceX--;
Row[x2].SetDistanceIfLower(new DistanceEntry(DistanceX, DistanceY));
}
}
// Right edge
if (x < Width - 1 && !Mask[x + 1, y])
{
int DistanceX = 0, DistanceY = 0;
for (int x2 = x + 1; x2 < Width; x2++)
{
if (Mask[x2, y]) break;
DistanceX++;
Row[x2].SetDistanceIfLower(new DistanceEntry(DistanceX, DistanceY));
}
}
}
else
{
//Row[x].SetDistanceIfLower(new DistanceEntry(1000, 1000));
}
}
for (int x = 0; x < Width; x++)
{
DistanceMap[x, y].SetDistanceIfLower(Row[x]);
Row[x] = DistanceMap[x, y];
//Console.Write("{0}", Row[x].GetChar());
}
#if true
for (int x = Width - 2; x >= 0; x--)
{
var Right = DistanceMap[x + 1, y];
DistanceMap[x, y].SetDistanceIfLower(new DistanceEntry(Right.DistanceX - 1, Right.DistanceY));
Row[x] = DistanceMap[x, y];
}
for (int x = 1; x < Width; x++)
{
var Right = DistanceMap[x - 1, y];
DistanceMap[x, y].SetDistanceIfLower(new DistanceEntry(Right.DistanceX + 1, Right.DistanceY));
Row[x] = DistanceMap[x, y];
}
#endif
//Console.WriteLine("");
for (int x = 0; x < Width; x++)
{
Row[x].DistanceY++;
//Console.Write("{0}", Row[x].GetChar());
}
}
}
return DistanceMap;
}
/// <summary>
///
/// </summary>
/// <param name="DistanceMap"></param>
/// <returns></returns>
static public Bitmap BitmapFromDistanceMap(DistanceEntry[,] DistanceMap)
{
var Bitmap = new Bitmap(DistanceMap.GetLength(0), DistanceMap.GetLength(1));
var Width = Bitmap.Width;
var Height = Bitmap.Height;
Bitmap.LockBitsUnlock(System.Drawing.Imaging.PixelFormat.Format32bppArgb, (BitmapData) =>
{
for (int y = 0; y < Height; y++)
{
var Ptr = ((byte *)BitmapData.Scan0.ToPointer()) + BitmapData.Stride * y;
for (int x = 0; x < Width; x++)
{
byte Distance = (byte)MathUtils.FastClamp((int)(DistanceMap[x, y].Distance * 4), 0, 255);
*Ptr++ = Distance;
*Ptr++ = Distance;
*Ptr++ = Distance;
*Ptr++ = 0xFF;
}
}
});
return Bitmap;
}
static public void DrawGlow(Bitmap Bitmap, DistanceEntry[,] _DistanceMap, float GlowDistance, ARGB_Rev GlowColor, Func<float, float> Function = null)
{
var TransparentColor = (ARGB_Rev)"#00000000";
if (Function == null) Function = (v) => v;
Bitmap.Shader((color, x, y) =>
{
var Dist = (float)_DistanceMap[x, y].Distance;
if (Dist == 0 && color.A == 0xFF) return color;
if (Dist > GlowDistance) return new ARGB_Rev(0, 0, 0, 0);
var GenColor = ARGB_Rev.Interpolate(GlowColor, TransparentColor, 1 - Function(Dist / GlowDistance));
return (Dist == 0) ? ARGB_Rev.Mix(color, GenColor) : GenColor;
});
}
static public void DrawGlow(Bitmap Bitmap, DistanceEntry[,] _DistanceMap, float GlowDistance, ARGB_Rev GlowColor, float Min, float Max = 1.0f)
{
DistanceMap.DrawGlow(Bitmap, _DistanceMap, GlowDistance, GlowColor, (f) =>
{
return MathUtils.SmoothStep(Min, Max, f);
});
}
/// <summary>
///
/// </summary>
/// <param name="Mask"></param>
/// <returns></returns>
static public DistanceEntry[,] GetDistanceMap(bool[,] Mask)
{
int Width = Mask.GetLength(0);
int Height = Mask.GetLength(1);
var DistanceMap = new DistanceEntry[Width, Height];
var Row = new DistanceEntry[Width];
for (int y = 0; y < Height; y++)
{
for (int x = 0; x < Width; x++)
{
DistanceMap[x, y] = new DistanceEntry(1000, 1000);
}
}
var Pass1 = Range(0, Height - 1);
var Pass2 = Range(Height - 1, 0);
foreach (var PassIterator in new[] { Pass1, Pass2 })
//foreach (var PassIterator in new[] { Pass1 })
{
for (int n = 0; n < Row.Length; n++)
{
Row[n] = new DistanceEntry(1000, 1000);
}
//for (int y = 0; y < Height; y++)
foreach (var y in PassIterator)
{
for (int x = 0; x < Width; x++)
{
if (Mask[x, y])
{
// Inner
Row[x] = new DistanceEntry(0, 0);
// Left edge
if (x > 0 && !Mask[x - 1, y])
{
int DistanceX = 0, DistanceY = 0;
for (int x2 = x - 1; x2 >= 0; x2--)
{
if (Mask[x2, y])
{
break;
}
DistanceX--;
Row[x2].SetDistanceIfLower(new DistanceEntry(DistanceX, DistanceY));
}
}
// Right edge
if (x < Width - 1 && !Mask[x + 1, y])
{
int DistanceX = 0, DistanceY = 0;
for (int x2 = x + 1; x2 < Width; x2++)
{
if (Mask[x2, y])
{
break;
}
DistanceX++;
Row[x2].SetDistanceIfLower(new DistanceEntry(DistanceX, DistanceY));
}
}
}
else
{
//Row[x].SetDistanceIfLower(new DistanceEntry(1000, 1000));
}
}
for (int x = 0; x < Width; x++)
{
DistanceMap[x, y].SetDistanceIfLower(Row[x]);
Row[x] = DistanceMap[x, y];
//Console.Write("{0}", Row[x].GetChar());
}
#if true
for (int x = Width - 2; x >= 0; x--)
{
var Right = DistanceMap[x + 1, y];
DistanceMap[x, y].SetDistanceIfLower(new DistanceEntry(Right.DistanceX - 1, Right.DistanceY));
Row[x] = DistanceMap[x, y];
}
for (int x = 1; x < Width; x++)
{
var Right = DistanceMap[x - 1, y];
DistanceMap[x, y].SetDistanceIfLower(new DistanceEntry(Right.DistanceX + 1, Right.DistanceY));
Row[x] = DistanceMap[x, y];
}
#endif
//Console.WriteLine("");
for (int x = 0; x < Width; x++)
{
Row[x].DistanceY++;
//Console.Write("{0}", Row[x].GetChar());
}
}
}
return(DistanceMap);
}
/// <summary>
///
/// </summary>
/// <param name="mask"></param>
/// <returns></returns>
public static DistanceEntry[,] GetDistanceMap(bool[,] mask)
{
var width = mask.GetLength(0);
var height = mask.GetLength(1);
var distanceMap = new DistanceEntry[width, height];
var row = new DistanceEntry[width];
for (var y = 0; y < height; y++)
{
for (var x = 0; x < width; x++)
{
distanceMap[x, y] = new DistanceEntry(1000, 1000);
}
}
var pass1 = Range(0, height - 1);
var pass2 = Range(height - 1, 0);
foreach (var passIterator in new[] { pass1, pass2 })
//foreach (var PassIterator in new[] { Pass1 })
{
for (var n = 0; n < row.Length; n++)
{
row[n] = new DistanceEntry(1000, 1000);
}
//for (int y = 0; y < Height; y++)
foreach (var y in passIterator)
{
for (var x = 0; x < width; x++)
{
if (!mask[x, y])
{
continue;
}
// Inner
row[x] = new DistanceEntry(0, 0);
// Left edge
if (x > 0 && !mask[x - 1, y])
{
int distanceX = 0, DistanceY = 0;
for (int x2 = x - 1; x2 >= 0; x2--)
{
if (mask[x2, y])
{
break;
}
distanceX--;
row[x2].SetDistanceIfLower(new DistanceEntry(distanceX, DistanceY));
}
}
// Right edge
if (x < width - 1 && !mask[x + 1, y])
{
int distanceX = 0, DistanceY = 0;
for (int x2 = x + 1; x2 < width; x2++)
{
if (mask[x2, y])
{
break;
}
distanceX++;
row[x2].SetDistanceIfLower(new DistanceEntry(distanceX, DistanceY));
}
}
}
for (var x = 0; x < width; x++)
{
distanceMap[x, y].SetDistanceIfLower(row[x]);
row[x] = distanceMap[x, y];
//Console.Write("{0}", Row[x].GetChar());
}
#if true
for (var x = width - 2; x >= 0; x--)
{
var right = distanceMap[x + 1, y];
distanceMap[x, y].SetDistanceIfLower(new DistanceEntry(right.DistanceX - 1, right.DistanceY));
row[x] = distanceMap[x, y];
}
for (var x = 1; x < width; x++)
{
var right = distanceMap[x - 1, y];
distanceMap[x, y].SetDistanceIfLower(new DistanceEntry(right.DistanceX + 1, right.DistanceY));
row[x] = distanceMap[x, y];
}
#endif
//Console.WriteLine("");
for (int x = 0; x < width; x++)
{
row[x].DistanceY++;
//Console.Write("{0}", Row[x].GetChar());
}
}
}
return(distanceMap);
}
