游戏基础012---多背景循环动画

代码下载 /2012/0118/20120118081212897.rar

/************************************************************************/
/*
多背景循环动画的背景循环原理与前面讲的背景训话原理相同，不过由于不同
背景在远近层次上机实际视觉移动速度上并不相同，因此在贴图时需要决定不同
背景贴图的先后顺序及滚动速度
*/
/************************************************************************//
#include "stdafx.h"

//全局变量声明
HINSTANCE hInst;
HBITMAP dra,bg[3];//bg[3]表示3组背景
HDC     hdc,mdc,bufdc;
HWND    hWnd;
DWORD   tPre,tNow;
int     x0=0,x1=0,x2=0,num=0;

//全局函数
void MyPaint(HDC);
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);
void                MyPaint(HDC hdc);

//****程序入口**************************************
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    MSG msg;

    MyRegisterClass(hInstance);

    //运行初始化函数
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    //游戏循环
    PeekMessage(&msg, NULL, 0, 0, PM_REMOVE);
    while (msg.message != WM_QUIT)
    {
        if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
      {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else
        {
            tNow = GetTickCount();
            if (tNow-tPre >= 100)
            {
                MyPaint(hdc);
           }
        }

    }

    return msg.wParam;
}

//****定义及注册窗口类别函数*************************
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = (WNDPROC)WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = NULL;
    wcex.hCursor        = NULL;
    wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = NULL;
    wcex.lpszClassName = "canvas"; //类别名称
    wcex.hIconSm        = NULL;

    return RegisterClassEx(&wcex);
}

//****初始化*************************************
// 加载位图并设定各对象初始值
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    char filename[20] = "";
    HBITMAP bmp;
    hInst = hInstance;

    hWnd = CreateWindow("canvas", "绘图窗口" , WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

    if (!hWnd)
    {
        return FALSE;
    }

    MoveWindow(hWnd,10,10,600,450,true);
    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

    hdc = GetDC(hWnd);
    mdc = CreateCompatibleDC(hdc);
    bufdc = CreateCompatibleDC(hdc);

    bmp = CreateCompatibleBitmap(hdc,640,480);
    SelectObject(mdc,bmp);

    bg[0] = (HBITMAP)LoadImage(NULL,"bg0.bmp",IMAGE_BITMAP,640,480,LR_LOADFROMFILE);
    bg[1] = (HBITMAP)LoadImage(NULL,"bg1.bmp",IMAGE_BITMAP,640,600,LR_LOADFROMFILE);
    bg[2] = (HBITMAP)LoadImage(NULL,"bg2.bmp",IMAGE_BITMAP,640,600,LR_LOADFROMFILE);
    dra = (HBITMAP)LoadImage(NULL,"dra.bmp",IMAGE_BITMAP,760,198,LR_LOADFROMFILE);

    MyPaint(hdc);

    return TRUE;
}

/************************************************************************/
/*
1.按照各背景远近顺序进行循环背景贴图
2.进行前景恐龙图的透明贴图
3.重设各背景图的切割宽度与跑动恐龙图的图号
*/
/************************************************************************/
void MyPaint(HDC hdc)
{
    //贴上天空图
    SelectObject(bufdc,bg[0]);
    BitBlt(mdc,0,0,x0,300,bufdc,640-x0,0,SRCCOPY);
    BitBlt(mdc,x0,0,640-x0,300,bufdc,0,0,SRCCOPY);

    //贴

补充：综合编程 , 其他综合 ,