TETRIS

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TETRIS

大概一年半以前闲着无聊，于是就写了一个俄罗斯方块自娱自乐，程序运行如下图1所示：

图 1

完整的source code可以在这里下载。该程序使用WTL实现的，代码本身非常简单，无非是一些碰撞，变形等情况的判断调整。比较有意思的是程序使用了Factory Method用于创建方块，控制方块的变形。创建方块部分的设计类图如下所示：

Factory的code如下：

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

* author:hgf_starlovecpp@hotmail.com

* version:1.0

* description: just for fun

* todo: hard code exists need to fixed

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

#pragma once

#include <map>

#include "Tetris.h"

#include "OneTetris.h"

#include "TwoTetris.h"

#include "ThreeTetris.h"

#include "FourTetris.h"

#include "FiveTetris.h"

#include "SixTetris.h"

#include "SevenTetris.h"

class TetrisFactory

{

public:

TetrisFactory(void)

{

m_sel2TetrisMap[0] = &TetrisFactory::CreateOneTetris;

m_sel2TetrisMap[1] = &TetrisFactory::CreateTwoTetris;

m_sel2TetrisMap[2] = &TetrisFactory::CreateThreeTetris;

m_sel2TetrisMap[3] = &TetrisFactory::CreateFourTetris;

m_sel2TetrisMap[4] = &TetrisFactory::CreateFiveTetris;

m_sel2TetrisMap[5] = &TetrisFactory::CreateSixTetris;

m_sel2TetrisMap[6] = &TetrisFactory::CreateSevenTetris;

}

public:

~TetrisFactory(void)

{

}

Tetris* CreateTetris(char sel)

{

return (this->*(m_sel2TetrisMap.find(sel)->second))();

}

private:

Tetris* CreateOneTetris()

{

static OneTetris tetris;

tetris.InitPos();

return & tetris;

}

Tetris* CreateTwoTetris()

{

static TwoTetris tetris;

tetris.InitPos();

return & tetris;

}

Tetris* CreateThreeTetris()

{

static ThreeTetris tetris;

tetris.InitPos();

return & tetris;

}

Tetris* CreateFourTetris()

{

static FourTetris tetris;

tetris.InitPos();

return & tetris;

}

Tetris* CreateFiveTetris()

{

static FiveTetris tetris;

tetris.InitPos();

return & tetris;

}

Tetris* CreateSixTetris()

{

static SixTetris tetris;

tetris.InitPos();

return & tetris;

}

Tetris* CreateSevenTetris()

{

static SevenTetris tetris;

tetris.InitPos();

return & tetris;

}

private:

typedef Tetris*(TetrisFactory::*PMA)();

std::map<char,PMA> m_sel2TetrisMap;

};

有兴趣的朋友可以下下来改改玩玩。

That’s all!

Peter