void RemoveCodedBackground()
{
LPFRAME lpFrame;
int x, y;
int Width;
int Height;
LPTR lpSrcLine;
BYTE r, g, b;
if (!lpImage) return;
ImgCombineObjects(lpImage, TRUE, FALSE, TRUE);
lpFrame = ImgGetBaseEditFrame(lpImage);
if (!lpFrame) return;
Width = FrameXSize (lpFrame);
Height = FrameYSize (lpFrame);
for (y=0;y<Height;y++)
{
AstralClockCursor( y, Height, NO );
lpSrcLine = FramePointer (lpFrame,0,y,TRUE);
for (x=0;x<Width;x++)
{
RGBS Pixel;
FrameGetRGB (lpFrame,lpSrcLine,&Pixel,1);
r = Pixel.red;
g = Pixel.green;
b = Pixel.blue;
if (r >= 100 && !g && !b)
{ // a dot
Pixel.red = 255;
Pixel.green = 255;
Pixel.blue = 255;
FrameSetRGB (lpFrame,&Pixel,lpSrcLine,1);
}
else
if ( (r != g) || (g != b) )
{ // not white or black
Pixel.red = 0;
Pixel.green = 0;
Pixel.blue = 0;
FrameSetRGB (lpFrame,&Pixel,lpSrcLine,1);
}
lpSrcLine += 3;
} // Width
} // Height
}
static BOOL NEAR PathIsClear (int x1,int y1,int x2,int y2)
{
BOOL bClear = TRUE;
int i;
LPFRAME lpFrame = ImgGetBaseEditFrame (lpImage);
nNumLinePoints = 0;
ddaline (x1,y1,x2,y2, (LPPOINTFUNC)MazeLineProc);
for (i = 0; i < nNumLinePoints; i++)
{
RGBS Pixel;
LPTR lpLine = FramePointer (lpFrame,
MazeLinePoints[i].x,MazeLinePoints[i].y,FALSE);
FrameGetRGB (lpFrame,lpLine,&Pixel,1);
if (!Pixel.red && !Pixel.green && !Pixel.blue)
{
bClear = FALSE;
break;
}
}
return bClear;
}
void InitPoints()
{
int i;
LPFRAME lpFrame;
int Width;
int Height;
int x,y;
LPTR lpSrcLine;
BYTE r, g, b;
iActiveDot = 0;
iNumDots = 0;
// Clear out the array
for (i=0; i<MAX_DOTS; i++)
{
DotPoints[i].x = 0;
DotPoints[i].y = 0;
}
if (!lpImage) return;
lpFrame = ImgGetBaseEditFrame(lpImage);
if (!lpFrame) return;
Width = FrameXSize (lpFrame);
Height = FrameYSize (lpFrame);
// Find all the points in the image.
// Search for coded dots that indicate a dot-to-dot point.
// These dot points will be drawn as circles for the user to click in.
// An array of points - DotPoints[] is maintained to remember these dots.
for (y=0;y<Height;y++)
{
AstralClockCursor( y, Height, NO );
lpSrcLine = FramePointer (lpFrame,0,y,FALSE);
for (x=0;x<Width;x++)
{
RGBS Pixel;
FrameGetRGB (lpFrame,lpSrcLine,&Pixel,1);
r = Pixel.red;
g = Pixel.green;
b = Pixel.blue;
if (r >= 100 && g == 0 && b == 0)
{
// This is a coded pixel that contains:
// 1) green - No coding. MUST be 0.
// 2) red - Sequence that the dot is found.
// 3) blue - No coding. MUST be 0.
r -= 100;
if (r >= 0 && r <= MAX_DOTS)
{
// Save the Dot position.
// Do not allow the dot to go off the screen.
DotPoints[r].x = min(x, Width - ((DOT_DIAMETER / 2) + 2));
DotPoints[r].y = min(y, Height - ((DOT_DIAMETER / 2) + 2));
iNumDots = max(iNumDots, r);
}
}
lpSrcLine += 3;
} // Width
} // Height
}
static BOOL FAR MazeToolProc (HWND hWnd,LONG lParam,WORD wMsg)
{
HDC hDC;
LPFRAME lpFrame;
LPTR lpLine;
POINT pt;
RGBS Pixel;
static int x1,y1;
pt.x = LOWORD(lParam);
pt.y = HIWORD(lParam);
switch (wMsg)
{
case WM_LBUTTONDOWN:
if (!bTrack)
{
lpFrame = ImgGetBaseEditFrame (lpImage);
lpLine = FramePointer (lpFrame,pt.x,pt.y,FALSE);
FrameGetRGB (lpFrame,lpLine,&Pixel,1);
if (Pixel.green && !(Pixel.red & Pixel.blue)) // start green pel
{
// SoundStartID (IDC_LINES,NO,0);
SoundStartResource ("icons",NO,0);
MazeTrailPoints[0].x = x1 = pt.x;
MazeTrailPoints[0].y = y1 = pt.y;
nNumTrailPoints = 1;
if (bShowSolution || bSolved)
{
bShowSolution = bSolved = FALSE;
InvalidateRect (hWnd,NULL,FALSE);
UpdateWindow (hWnd);
}
bTrack = TRUE;
}
else if (!AnimateProc(hWnd,lParam,wMsg))
SoundStartResource ("WRONGANSWER1",NO,0);
}
break;
case WM_MOUSEMOVE:
if (!bTrack)
break;
if (!fAppActive || GetUpdateRect (hWnd,NULL,FALSE))
{
InvertLine (hWnd,x1,y1,x1,y1);
break;
}
InvertLine (hWnd,x1,y1,pt.x,pt.y);
if (!LBUTTON || (pt.x == x1 && pt.y == y1))
break;
// else button is down, so fall through to anchor a point
case WM_LBUTTONUP:
if (bTrack)
{
if (PathIsClear (x1,y1,pt.x,pt.y))
{
lpFrame = ImgGetBaseEditFrame (lpImage);
lpLine = FramePointer (lpFrame,pt.x,pt.y,FALSE);
FrameGetRGB (lpFrame,lpLine,&Pixel,1);
if (Pixel.red && !(Pixel.green & Pixel.blue)) // end red pel
{
SoundStartResource ("GOODANSWER1",NO,0);
StartAnimation(hWnd);
bSolved = TRUE;
bTrack = FALSE;
}
else
{
hDC = GetDC (hWnd);
DrawLineEx (hDC,x1,y1,pt.x,pt.y,
hMazePen ? hMazePen : (HPEN)GetStockObject (BLACK_PEN),FALSE);
ReleaseDC (hWnd,hDC);
x1 = pt.x;
y1 = pt.y;
if (nNumTrailPoints < MAX_LINEPOINTS)
{
MazeTrailPoints[nNumTrailPoints].x = x1;
MazeTrailPoints[nNumTrailPoints].y = y1;
nNumTrailPoints++;
}
}
}
else
SoundStartResource ("WRONGANSWER1",NO,0);
}
break;
case WM_PAINT:
if (bTrack)
{
int i;
hDC = GetDC (hWnd);
pt.x = MazeTrailPoints[0].x;
pt.y = MazeTrailPoints[0].y;
for (i = 1; i < nNumTrailPoints; i++)
{
DrawLineEx (hDC,pt.x,pt.y,
MazeTrailPoints[i].x,MazeTrailPoints[i].y,
hMazePen ? hMazePen : (HPEN)GetStockObject (BLACK_PEN),FALSE);
pt.x = MazeTrailPoints[i].x;
pt.y = MazeTrailPoints[i].y;
}
ReleaseDC (hWnd,hDC);
}
break;
}
return TRUE;
}
