摩天轮.exe制作过程

#include <windows.h>

// Function prototypes
void change_hor_screen(int);
void change_ver_screen(int);
void prepare_screen();
void horizontal_flipped();
void vertical_flipped();

int dcHorzres;  // HORZRES
int dcVertres;  // VERTRES
HDC hDC;
HDC hMemoryDC;
HBITMAP hBitmap;

void change_hor_screen(int x)
{
int width;
int height;
int result;

width = dcHorzres;
height = dcVertres;
result = width - x;

x  = ((width + x )% width) % width;
BitBlt(hDC, x, 0, width - x, height, hMemoryDC, 0, 0, SRCCOPY);
BitBlt(hDC, 0, 0, x, height, hMemoryDC, width - x, 0, SRCCOPY);
return;
}

void change_ver_screen(int y)
{
int width;
int height;

width = dcHorzres;
height = dcVertres;

y  = ((width + y) % width) % width;
BitBlt(hDC, 0, y, width, height-y, hMemoryDC, 0, 0, SRCCOPY);
BitBlt(hDC, 0, 0, width, y, hMemoryDC, 0 , height - y, SRCCOPY);
return;
}

void prepare_screen()
{
hDC   = GetDC(NULL);
dcHorzres = GetDeviceCaps(hDC, HORZRES);
dcVertres = GetDeviceCaps(hDC, VERTRES);
hMemoryDC = CreateCompatibleDC(hDC);
hBitmap  = CreateCompatibleBitmap(hDC, dcHorzres, dcVertres);
SelectObject(hMemoryDC, hBitmap);
BitBlt(hMemoryDC, 0, 0, dcHorzres, dcVertres, hDC, 0, 0, SRCCOPY);

return;
}

void horizontal_flipped()
{
int constant = 1;
int counter  = 0;
int v9   = 0;
int v11   = 0;
int width;
int height;

width = dcHorzres;
height = dcVertres;

while(counter < 200)
{
change_hor_screen(constant * counter * counter);
Sleep(30);
counter++;
}

v9  = (counter * counter * constant) % width;
v11  = counter * 2 * constant;
counter = 0;
while(counter < 200)
{
change_hor_screen((counter * v11 + v9) - (counter * counter * constant));
Sleep(30);
counter++;
}

v9  = ((counter * v11 + v9) - (counter * counter * constant)) % width;
v11  = 0;
counter = 0;
while(counter < 200)
{
change_hor_screen(v9 - counter * counter * constant);
Sleep(30);
counter++;
}

v9  = (v9 - counter * counter * constant) % width;
v11  = counter * -2 * constant;
counter = 0;
while(counter < 200)
{
change_hor_screen(counter * counter * constant + counter * v11 + v9);
Sleep(30);
counter++;
}

return;
}

void vertical_flipped()
{

int constant = 1;
int counter  = 0;
int v9   = 0;
int v11   = 0;
int width;
int height;

width = dcHorzres;
height = dcVertres;

while(counter < 200)
{
change_ver_screen(constant*counter*counter);
Sleep(30);
counter++;
}

v9  = (counter*counter*constant)%width;
v11  = counter * 2 * constant;
counter = 0;
while(counter < 200)
{
change_ver_screen((counter * v11 + v9) - (counter * counter * constant));
Sleep(30);
counter++;
}

v9  = ((counter * v11 + v9) - (counter * counter * constant)) % width;
v11  = 0;
counter = 0;
while(counter < 200)
{
change_ver_screen(v9 - counter * counter * constant);
Sleep(30);
counter++;
}

v9  = (v9 - counter * counter * constant) % width;
v11  = counter * -2 * constant;
counter = 0;
while(counter < 200)
{
change_ver_screen(counter * counter * constant + counter * v11 + v9);
Sleep(30);
counter++;
}

return;
}
int main()
{

Sleep(30);
prepare_screen();
horizontal_flipped();
vertical_flipped();

// Restore the screen
BitBlt(hDC, 0, 0, dcHorzres, dcVertres, hMemoryDC, 0, 0, SRCCOPY);
SelectObject(hDC, hBitmap);
DeleteDC(hDC);
DeleteDC(hMemoryDC);
return 0;
}

原文出处: http://deloz.net/1000000405.html