int main()
{
SetupAll();
SetupBalls();
DoTimers();
LoadBitmaps();
DoBlock();
while (!key[KEY_ESC] && GoGame == 1)
{
CheckDead();
CheckBlock();
MoveBall();
if (BallsToDrop > 0)
DropBalls();
if (Lives <= 0)
GoGame = 0;
DrawBack();
CheckExplode();
DrawBalls();
MoveMouse();
MoveStoneBlock();
WaitTimer();
flip();
}
EndOfGame();
allegro_exit(); //Clean up allegro
return 0;
}
//
// FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
int wmId, wmEvent;
PAINTSTRUCT ps;
HDC hdc;
switch (message)
{
case WM_COMMAND:
wmId = LOWORD(wParam);
wmEvent = HIWORD(wParam);
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
break;
case WM_CREATE: // 程序启动后
SetTimer(hWnd,1,timeStep,NULL); // 开始设置一个ID为1的定时器,每timeStep毫秒触发一个定时器消息
break;
case WM_TIMER: // 定时器响应消息
if (wParam == 1) // 如果是感兴趣的定时器(ID为1),则进行游戏更新
{
UpdateBalls(nBalls, radius, ballsX, ballsY, ballsVX, ballsVY, timeStep/10);
InvalidateRect(hWnd, NULL, TRUE); // 让窗口变为无效,从而触发重绘消息
}
break;
case WM_SIZE: // 获取窗口的尺寸
wndWidth = LOWORD(lParam);
wndHeight = HIWORD(lParam);
break;
case WM_KEYDOWN:
if (wParam == ' ') // 按下空格
{
GenerateBall(&nBalls); // 生成一个小球
InvalidateRect(hWnd, NULL, TRUE); // 让窗口变为无效,从而触发重绘消息
}
break;
case WM_ERASEBKGND: // 截获擦除背景消息,不擦除背景,避免闪烁
break;
case WM_PAINT:
{
hdc = BeginPaint(hWnd, &ps);
// TODO: Add any drawing code here...
// 以下的步骤是为了避免产生屏幕闪烁,将画面首先绘制到内存中,然后一次性拷贝到屏幕上
// 创建内存HDC
HDC memHDC = CreateCompatibleDC(hdc);
//获取客户区大小
RECT rectClient;
GetClientRect(hWnd, &rectClient);
//创建位图
HBITMAP bmpBuff = CreateCompatibleBitmap(hdc,wndWidth,wndHeight);
HBITMAP pOldBMP = (HBITMAP)SelectObject(memHDC, bmpBuff);
PatBlt(memHDC,0,0,wndWidth,wndHeight,WHITENESS); // 设置背景为白色
// 进行真正的绘制
DrawBalls(memHDC, nBalls, radius, ballsX, ballsY, ballsC);
//拷贝内存HDC内容到实际HDC
BOOL tt = BitBlt(hdc, rectClient.left, rectClient.top, wndWidth,
wndHeight, memHDC, rectClient.left, rectClient.top, SRCCOPY);
//内存回收
SelectObject(memHDC, pOldBMP);
DeleteObject(bmpBuff);
DeleteDC(memHDC);
EndPaint(hWnd, &ps);
break;
}
case WM_DESTROY:
KillTimer(hWnd,1); // 程序退出时，将定时器删除
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
