游戏编程基础004---斜角地图贴图

代码地址： /2012/0118/20120118075014958.rar

[cpp]
/************************************************************************/
/*
    列编号= 索引值/ 每一列图块个数
    行编号= 索引值% 每一列的图块个数

    菱形的宽和高分别是w和h
    xstart与ystart代表第一张图块左上角贴图坐标
    左上点X坐标= xstart + 行编号* w/2
    左上点Y坐标= ystart + 列编号* h/2

    地图宽= (列数+行数)* w/2
    地图高= (列数+行数)* h/2

*/
/************************************************************************//

#include "stdafx.h"

//全局变量声明
HINSTANCE hInst;
HBITMAP fullmap;
HDC     mdc;
const int rows = 10,cols = 10;

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

//****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;
    }

    //消息循环
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    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*************************************
// 什么地图数组，进行图块贴图，完成地图衔接
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    HWND hWnd;
    HDC hdc,bufdc;

    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);

    int mapIndex[rows*cols] = { 2,2,2,2,2,0,1,0,1,0, //第1列
        3,3,2,2,0,0,0,1,1,0,
        3,0,0,0,0,0,0,0,1,2,
        2,2,0,0,0,0,0,2,2,2,
        2,2,0,0,0,0,2,2,2,2,
        2,2,0,0,0,2,2,0,0,2,
        2,0,0,2,2,2,0,0,1,0,
        0,0,2,0,0,0,1,1,1,1,
        0,2,0,3,3,3,3,3,3,1,
        2,0,3,3,3,3,3,3,3,3 };//第10列

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

    HBITMAP map[4];
    char filename[20] = "";
    int rowNum,colNum;
    int i,x,y;
    int xstart,ystart;

    xstart = 32 * (rows-1);
    ystart = 0;

    fullmap = (HBITMAP)LoadImage(NULL,"bg.bmp",IMAGE_BITMAP,640,480,LR_LOADFROMFILE);
    SelectObject(mdc,fullmap);

    //加载各图块位图
    for(i=0;i<4;i++)
    {
        sprintf(filename,"map%d.bmp",i);
        map[i] = (HBITMAP)LoadImage(NULL,filename,IMAGE_BITMAP,128,32,LR_LOADFROMFILE);
    }

    //安装mapIndex数组中定义取出对已图块
    for (i=0;i<rows*cols;i++)
    {
        SelectObject(bufdc,map[mapIndex[i]]);

        r

补充：综合编程 , 其他综合 ,