Animation Girl_Boy

#include <windows.h> #include "resource.h" const char g_szClassName[] = "myWindowClass"; const int ID_TIMER = 2; const int GIRL_MOVE_DELTA = 15; const int MAN_MOVE_DELTA = 14; typedef struct _IMAGEINFO { int width; int height; int x; int y; int dx; int dy; }IMAGEINFO; IMAGEINFO g_girlInfo; IMAGEINFO g_manInfo; HBITMAP g_hbmGirl = NULL; HBITMAP g_hbmMan = NULL; HBITMAP g_hgmMask = NULL; HBITMAP g_hmmMask = NULL; HBITMAP CreateBitmapMask(HBITMAP hbmColour, COLORREF crTransparent) { HDC hdcMem, hdcMem2; HBITMAP hbmMask; BITMAP bm; GetObject(hbmColour, sizeof(BITMAP), &bm); hbmMask = CreateBitmap(bm.bmWidth, bm.bmHeight, 1, 1, NULL); hdcMem = CreateCompatibleDC(0); hdcMem2 = CreateCompatibleDC(0); SelectObject(hdcMem, hbmColour); SelectObject(hdcMem2, hbmMask); SetBkColor(hdcMem, crTransparent); BitBlt(hdcMem2, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem, 0, 0, SRCCOPY); BitBlt(hdcMem, 0, 0, bm.bmWidth, bm.bmHeight, hdcMem2, 0, 0, SRCINVERT); DeleteDC(hdcMem); DeleteDC(hdcMem2); return hbmMask; } void DrawMan(HDC hdc, RECT* prc) { HDC hdcBuffer = CreateCompatibleDC(hdc); HBITMAP hbmBuffer = CreateCompatibleBitmap(hdc, prc->right, prc->bottom); HBITMAP hbmOldBuffer = (HBITMAP)SelectObject(hdcBuffer, hbmBuffer); HDC hdcMem = CreateCompatibleDC(hdc); HBITMAP hbmOld = (HBITMAP)SelectObject(hdcMem, g_hmmMask); FillRect(hdcBuffer, prc, (HBRUSH)GetStockObject(WHITE_BRUSH)); BitBlt(hdcBuffer, g_manInfo.x, g_manInfo.y, g_manInfo.width, g_manInfo.height, hdcMem, 0, 0, SRCAND); SelectObject(hdcMem, g_hbmMan); BitBlt(hdcBuffer, g_manInfo.x, g_manInfo.y, g_manInfo.width, g_manInfo.height, hdcMem, 0, 0, SRCPAINT); BitBlt(hdc, 0, 0, prc->right, prc->bottom, hdcBuffer, 0, 0, SRCCOPY); SelectObject(hdcMem, hbmOld); DeleteDC(hdcMem); SelectObject(hdcBuffer, hbmOldBuffer); DeleteDC(hdcBuffer); DeleteObject(hbmBuffer); } void DrawGirl(HDC hdc, RECT* prc) { HDC hdcBuffer = CreateCompatibleDC(hdc); HBITMAP hbmBuffer = CreateCompatibleBitmap(hdc, prc->right, prc->bottom); HBITMAP hbmOldBuffer = (HBITMAP)SelectObject(hdcBuffer, hbmBuffer); HDC hdcMem = CreateCompatibleDC(hdc); HBITMAP hbmOld = (HBITMAP)SelectObject(hdcMem, g_hgmMask); FillRect(hdcBuffer, prc, (HBRUSH)GetStockObject(WHITE_BRUSH)); BitBlt(hdcBuffer, g_girlInfo.x, g_girlInfo.y, g_girlInfo.width, g_girlInfo.height, hdcMem, 0, 0, SRCAND); SelectObject(hdcMem, g_hbmGirl); BitBlt(hdcBuffer, g_girlInfo.x, g_girlInfo.y, g_girlInfo.width, g_girlInfo.height, hdcMem, 0, 0, SRCPAINT); BitBlt(hdc, 0, 0, prc->right, prc->bottom, hdcBuffer, 0, 0, SRCCOPY); SelectObject(hdcMem, hbmOld); DeleteDC(hdcMem); SelectObject(hdcBuffer, hbmOldBuffer); DeleteDC(hdcBuffer); DeleteObject(hbmBuffer); } void UpdateMan(RECT* prc) { g_manInfo.x += g_manInfo.dx; g_manInfo.y += g_manInfo.dy; if(g_manInfo.x < 0) { g_manInfo.x = 0; g_manInfo.dx = MAN_MOVE_DELTA; } else if(g_manInfo.x + g_manInfo.width > prc->right) { g_manInfo.x = prc->right - g_manInfo.width; g_manInfo.dx = -MAN_MOVE_DELTA; } if(g_manInfo.y < 0) { g_manInfo.y = 0; g_manInfo.dy = MAN_MOVE_DELTA; } else if(g_manInfo.y + g_manInfo.height > prc->bottom) { g_manInfo.y = prc->bottom - g_manInfo.height; g_manInfo.dy = -MAN_MOVE_DELTA; } } void UpdateGirl(RECT* prc) { g_girlInfo.x += g_girlInfo.dx; g_girlInfo.y += g_girlInfo.dy; if(g_girlInfo.x < 0) { g_girlInfo.x = 0; g_girlInfo.dx = GIRL_MOVE_DELTA; } else if(g_girlInfo.x + g_girlInfo.width > prc->right) { g_girlInfo.x = prc->right - g_girlInfo.width; g_girlInfo.dx = -GIRL_MOVE_DELTA; } if(g_girlInfo.y < 0) { g_girlInfo.y = 0; g_girlInfo.dy = GIRL_MOVE_DELTA; } else if(g_girlInfo.y + g_girlInfo.height > prc->bottom) { g_girlInfo.y = prc->bottom - g_girlInfo.height; g_girlInfo.dy = -GIRL_MOVE_DELTA; } } LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) { switch(msg) { case WM_CREATE: { UINT ret; BITMAP bm, bn; g_hbmGirl = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_GIRL)); if(g_hbmGirl == NULL) MessageBox(hwnd, "Could not load IDB_Girl!", "Error", MB_OK | MB_ICONEXCLAMATION); g_hbmMan = LoadBitmap(GetModuleHandle(NULL), MAKEINTRESOURCE(IDB_MAN)); if(g_hbmMan == NULL) MessageBox(hwnd, "Could not load IDB_Man!", "Error", MB_OK | MB_ICONEXCLAMATION); g_hgmMask = CreateBitmapMask(g_hbmGirl, RGB(0, 0, 0)); if(g_hgmMask == NULL) MessageBox(hwnd, "Could not create mask for Girl!", "Error", MB_OK | MB_ICONEXCLAMATION); g_hmmMask = CreateBitmapMask(g_hbmMan, RGB(0, 0, 0)); if(g_hmmMask == NULL) MessageBox(hwnd, "Could not create mask for Man!", "Error", MB_OK | MB_ICONEXCLAMATION); GetObject(g_hbmGirl, sizeof(bm), &bm); ZeroMemory(&g_girlInfo, sizeof(g_girlInfo)); g_girlInfo.width = bm.bmWidth; g_girlInfo.height = bm.bmHeight; g_girlInfo.dx = GIRL_MOVE_DELTA; g_girlInfo.dy = GIRL_MOVE_DELTA; GetObject(g_hbmMan, sizeof(bn), &bn); ZeroMemory(&g_manInfo, sizeof(g_manInfo)); g_manInfo.width = bn.bmWidth; g_manInfo.height = bn.bmHeight; g_manInfo.dx = MAN_MOVE_DELTA; g_manInfo.dy = MAN_MOVE_DELTA; ret = SetTimer(hwnd, ID_TIMER, 50, NULL); if(ret == 0) MessageBox(hwnd, "Could not SetTimer()!", "Error", MB_OK | MB_ICONEXCLAMATION); } break; case WM_CLOSE: DestroyWindow(hwnd); break; case WM_PAINT: { RECT rcClientGirl, rcClientMan; PAINTSTRUCT psGirl, psMan; HDC hdc = BeginPaint(hwnd, &psGirl); GetClientRect(hwnd, &rcClientGirl); DrawGirl(hdc, &rcClientGirl); EndPaint(hwnd, &psGirl); hdc= BeginPaint(hwnd, &psMan); GetClientRect(hwnd, &rcClientMan); DrawMan(hdc, &rcClientMan); EndPaint(hwnd, &psMan); } break; case WM_TIMER: { RECT rcClientGirl, rcClientMan; HDC hdc = GetDC(hwnd); GetClientRect(hwnd, &rcClientGirl); UpdateGirl(&rcClientGirl); DrawGirl(hdc, &rcClientGirl); ReleaseDC(hwnd, hdc); hdc = GetDC(hwnd); GetClientRect(hwnd, &rcClientMan); UpdateMan(&rcClientMan); DrawMan(hdc, &rcClientMan); ReleaseDC(hwnd, hdc); } break; case WM_DESTROY: KillTimer(hwnd, ID_TIMER); DeleteObject(g_hbmGirl); DeleteObject(g_hgmMask); DeleteObject(g_hbmMan); DeleteObject(g_hmmMask); PostQuitMessage(0); break; default: return DefWindowProc(hwnd, msg, wParam, lParam); } return 0; } int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { WNDCLASSEX wc; HWND hwnd; MSG Msg; wc.cbSize = sizeof(WNDCLASSEX); wc.style = 0; wc.lpfnWndProc = WndProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon(NULL, IDI_APPLICATION); wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); wc.lpszMenuName = NULL; wc.lpszClassName = g_szClassName; wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION); if(!RegisterClassEx(&wc)) { MessageBox(NULL, "Window Registration Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK); return 0; } hwnd = CreateWindowEx( WS_EX_CLIENTEDGE, g_szClassName, "Girl, where are you?...", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 800, 600, NULL, NULL, hInstance, NULL); if(hwnd == NULL) { MessageBox(NULL, "Window Creation Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK); return 0; } ShowWindow(hwnd, nCmdShow); UpdateWindow(hwnd); while(GetMessage(&Msg, NULL, 0, 0) > 0) { TranslateMessage(&Msg); DispatchMessage(&Msg); } return Msg.wParam; }