{"id":328,"date":"2013-06-14T11:56:14","date_gmt":"2013-06-14T11:56:14","guid":{"rendered":"http:\/\/yoonhada.com\/wp\/?p=328"},"modified":"2013-06-14T11:56:14","modified_gmt":"2013-06-14T11:56:14","slug":"state-pattorn","status":"publish","type":"post","link":"http:\/\/yoonhada.com\/?p=328","title":{"rendered":"state pattern"},"content":{"rendered":"

\t\t\t\t\"\uc81c\ubaa9<\/a><\/p>\n

[cpp]
\n#include <iostream>
\n#include <string><\/p>\n

using namespace std;<\/p>\n

class GameLevel
\n{
\npublic:
\n static GameLevel* CreateInstance() { return 0; }
\n virtual void SimpleAttack() = 0;
\n virtual void TurnAttack() = 0;
\n virtual void FlyingAttack() = 0;
\n};<\/p>\n

class GameLevel0 : public GameLevel
\n{
\npublic:
\n static GameLevel* CreateInstance()
\n {
\n if( pInstance_ == NULL ) pInstance_ = new GameLevel0;
\n return pInstance_;
\n }<\/p>\n

virtual void SimpleAttack() { cout << "SimpleAttack()" << endl; }
\n virtual void TurnAttack() { cout << "Not Allowed" << endl; }
\n virtual void FlyingAttack() { cout << "Not Allowed" << endl; }<\/p>\n

protected:
\n static GameLevel0 * pInstance_;
\n};
\nGameLevel0* GameLevel0::pInstance_ = 0;<\/p>\n

class GameLevel1 : public GameLevel
\n{
\npublic:
\n static GameLevel* CreateInstance()
\n {
\n if( pInstance_ == NULL ) pInstance_ = new GameLevel1;
\n return pInstance_;
\n }<\/p>\n

virtual void SimpleAttack() { cout << "SimpleAttack()" << endl; }
\n virtual void TurnAttack() { cout << "TurnAttack()" << endl; }
\n virtual void FlyingAttack() { cout << "Not Allowed" << endl; }<\/p>\n

protected:
\n static GameLevel1 * pInstance_;
\n};
\nGameLevel1 * GameLevel1::pInstance_ = NULL;<\/p>\n

class GameLevel2 : public GameLevel
\n{
\npublic:
\n static GameLevel* CreateInstance()
\n {
\n if( pInstance_ == NULL ) pInstance_ = new GameLevel2;
\n return pInstance_;
\n }<\/p>\n

virtual void SimpleAttack() { cout << "SimpleAttack()" << endl; }
\n virtual void TurnAttack() { cout << "TurnAttack()" << endl; }
\n virtual void FlyingAttack() { cout << "FlyingAttack()" << endl; }<\/p>\n

protected:
\n static GameLevel2 * pInstance_;
\n};
\nGameLevel2 * GameLevel2::pInstance_ = NULL;<\/p>\n

class GamePlayer
\n{
\npublic:
\n GamePlayer() { pGameLevel_ = GameLevel0::CreateInstance(); }<\/p>\n

void Updatelevel( GameLevel * pLevel) { pGameLevel_ = pLevel; }<\/p>\n

virtual void SimpleAttack() { pGameLevel_->SimpleAttack(); }
\n virtual void TurnAttack() { pGameLevel_->TurnAttack(); }
\n virtual void FlyingAttack() { pGameLevel_->FlyingAttack(); }<\/p>\n

private:
\n GameLevel * pGameLevel_;
\n};<\/p>\n

int main()
\n{
\n GamePlayer user1;<\/p>\n

user1.SimpleAttack();
\n user1.TurnAttack();
\n user1.FlyingAttack();<\/p>\n

cout << "———————" << endl;<\/p>\n

user1.Updatelevel( GameLevel1::CreateInstance() );
\n user1.SimpleAttack();
\n user1.TurnAttack();
\n user1.FlyingAttack();<\/p>\n

cout << "———————" << endl;<\/p>\n

user1.Updatelevel( GameLevel2::CreateInstance() );
\n user1.SimpleAttack();
\n user1.TurnAttack();
\n user1.FlyingAttack();<\/p>\n

cout << "———————" << endl;
\n return 0;
\n}<\/p>\n

[\/cpp]<\/p>\n

\uad6c\ud604\uad00\ub828 \uc0ac\ud56d
\n– State\ud328\ud134\uc740 \uc0c1\ud0dc\ubcc0\ud654\uc5d0 \ub530\ub77c \ud589\uc704 \uc218\ud589 \ubcc0\uacbd\uc774 \uc790\ub3d9\uc73c\ub85c \uc774\ub8e8\uc5b4 \uc9c0\uac8c \ub9cc\ub4e4\uae30 \uc704\ud55c \uac83. \uc0c1\ud0dc\ubcc0\ud658\uc744 \uc27d\uac8c \ud558\uae30 \uc704\ud574 \uc124\uacc4\ub41c\uac83\uc774 \uc544\ub2d8.\t\t<\/p>\n","protected":false},"excerpt":{"rendered":"

[cpp] #include <iostream> #include <string> using namespace std; class GameLevel { public: static GameLevel* CreateInstance() { return 0; } virtual void SimpleAttack() = 0; virtual void TurnAttack() = 0; virtual void FlyingAttack() = 0; }; class GameLevel0 : public GameLevel { public: static GameLevel* CreateInstance() { if( pInstance_ == NULL ) pInstance_ = new GameLevel0; […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[33],"class_list":["post-328","post","type-post","status-publish","format-standard","hentry","category-programming","tag-pattern"],"_links":{"self":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts\/328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=328"}],"version-history":[{"count":0,"href":"http:\/\/yoonhada.com\/index.php?rest_route=\/wp\/v2\/posts\/328\/revisions"}],"wp:attachment":[{"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=328"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/yoonhada.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}