public static Rectangle[] GetTileRects(Bitmap screenShot)
{
var screen = new FastBitmapWrapper(screenShot);
var rects = new List <Rectangle>();
InRectFunction inRect = delegate(int x, int y)
{
foreach (var rect in rects)
{
if ((x >= rect.Left) && (x <= rect.Right) &&
(y >= rect.Top) && (y <= rect.Bottom))
{
return(true);
}
}
return(false);
};
var searchOffsets = new List <Point> {
new Point(-1, -1),
new Point(0, -1),
new Point(1, -1),
new Point(1, 0),
new Point(1, 1),
new Point(0, 1),
new Point(-1, 1),
new Point(-1, 0)
};
FindNextPixelFunction findNextPixel = delegate(
int prevX, int prevY,
int currX, int currY,
out int nextX, out int nextY)
{
nextX = -1;
nextY = -1;
Point prevOffset = new Point(prevX - currX, prevY - currY);
int prevOffsetIndex = searchOffsets.IndexOf(prevOffset);
List <Point> offsets = new List <Point>(searchOffsets);
while (prevOffsetIndex >= 0)
{
var p = offsets[0];
offsets.RemoveAt(0);
offsets.Add(p);
prevOffsetIndex--;
}
for (var index = 0; index < offsets.Count; index++)
{
var offset = offsets[index];
nextX = currX + offset.X;
nextY = currY + offset.Y;
if ((nextX < 0) || (nextX >= screen.Width) || (nextY < 0) || (nextY >= screen.Height))
{
continue;
}
if (screen.GetPixel(nextX, nextY) == Settings.NormalTileColor)
{
return(true);
}
}
return(false);
};
for (var y = 0; y < screen.Height; y++)
{
for (var x = 0; x < screen.Width; x++)
{
if (inRect(x, y))
{
continue;
}
if (screen.GetPixel(x, y) == Settings.NormalTileColor)
{
int tileLeft = x;
int tileRight = x;
int tileTop = y;
int tileBottom = y;
int prevX = x - 1;
int prevY = y;
int currX = x;
int currY = y;
int nextX;
int nextY;
while (findNextPixel(prevX, prevY, currX, currY, out nextX, out nextY))
{
if ((nextX == x) & (nextY == y))
{
// We've looped right back to the start
break;
}
tileLeft = Math.Min(tileLeft, nextX);
tileRight = Math.Max(tileRight, nextX);
tileTop = Math.Min(tileTop, nextY);
tileBottom = Math.Max(tileBottom, nextY);
prevX = currX;
prevY = currY;
currX = nextX;
currY = nextY;
}
Rectangle tileRect = new Rectangle(tileLeft, tileTop, tileRight - tileLeft, tileBottom - tileTop);
if ((tileRect.Width > 0) && (tileRect.Height > 0))
{
rects.Add(tileRect);
}
}
}
}
return(rects.ToArray());
}
public static Rectangle[] GetTileRects(Bitmap screenShot)
{
var screen = new FastBitmapWrapper(screenShot);
var rects = new List<Rectangle>();
InRectFunction inRect = delegate(int x, int y)
{
foreach (var rect in rects)
{
if ((x >= rect.Left) && (x <= rect.Right) &&
(y >= rect.Top) && (y <= rect.Bottom))
return true;
}
return false;
};
var searchOffsets = new List<Point> {
new Point(-1, -1),
new Point(0, -1),
new Point(1, -1),
new Point(1, 0),
new Point(1, 1),
new Point(0, 1),
new Point(-1, 1),
new Point(-1, 0)
};
FindNextPixelFunction findNextPixel = delegate(
int prevX, int prevY,
int currX, int currY,
out int nextX, out int nextY)
{
nextX = -1;
nextY = -1;
Point prevOffset = new Point(prevX - currX, prevY - currY);
int prevOffsetIndex = searchOffsets.IndexOf(prevOffset);
List<Point> offsets = new List<Point>(searchOffsets);
while (prevOffsetIndex >= 0)
{
var p = offsets[0];
offsets.RemoveAt(0);
offsets.Add(p);
prevOffsetIndex--;
}
for (var index = 0; index < offsets.Count; index++)
{
var offset = offsets[index];
nextX = currX + offset.X;
nextY = currY + offset.Y;
if ((nextX < 0) || (nextX >= screen.Width) || (nextY < 0) || (nextY >= screen.Height))
continue;
if (screen.GetPixel(nextX, nextY) == Settings.NormalTileColor)
return true;
}
return false;
};
for (var y = 0; y < screen.Height; y++)
{
for (var x = 0; x < screen.Width; x++)
{
if (inRect(x, y))
continue;
if (screen.GetPixel(x, y) == Settings.NormalTileColor)
{
int tileLeft = x;
int tileRight = x;
int tileTop = y;
int tileBottom = y;
int prevX = x - 1;
int prevY = y;
int currX = x;
int currY = y;
int nextX;
int nextY;
while (findNextPixel(prevX, prevY, currX, currY, out nextX, out nextY))
{
if ((nextX == x) & (nextY == y))
{
// We've looped right back to the start
break;
}
tileLeft = Math.Min(tileLeft, nextX);
tileRight = Math.Max(tileRight, nextX);
tileTop = Math.Min(tileTop, nextY);
tileBottom = Math.Max(tileBottom, nextY);
prevX = currX;
prevY = currY;
currX = nextX;
currY = nextY;
}
Rectangle tileRect = new Rectangle(tileLeft, tileTop, tileRight - tileLeft, tileBottom - tileTop);
if ((tileRect.Width > 0) && (tileRect.Height > 0))
rects.Add(tileRect);
}
}
}
return rects.ToArray();
}
