add State Pattern

21.StatePattern/2.Code/Demo.h

@@ -0,0 +1,76 @@
+#ifndef __DEMO_H__
+#define __DEMO_H__
+
+// 抽象状态类
+class State
+{
+public:
+	// 声明抽象方法
+	virtual void handle() = 0;
+};
+
+// 具体状态类
+class ConcreteState :public State
+{
+public:
+	// 实现
+	void handle(){
+		// ……
+	}
+};
+
+// 上下文类
+class Context
+{
+public:
+	// set方法设置状态对象
+	void setState(State* iState){
+		this->state = iState;
+	}
+	// 对外封装的方法
+	void request(){
+		// do something
+		state->handle();
+	}
+private:
+	// 引用状态对象
+	State *state;
+};
+
+// 1.由环境类来决定实例化为哪一个具体状态类对象
+class Context
+{
+public:
+	void convertState(){
+		if (condition1){
+			this->state = new ConcreteStateA();
+		}
+		else if (condition2){
+			this->state = new ConcreteStateB();
+		}
+		else{
+			// do something
+		}
+	}
+private:
+	// 引用状态对象
+	State *state;
+};
+// 2.有具体状态类来决定转换成哪一个具体状态类对象
+class ConcreteState :public State
+{
+public:
+	void convertState(Context* ctx){
+		if (condition1){
+			ctx->setState(new ConcreteStateA());
+		}
+		else if (condition2){
+			ctx->setState(new ConcreteStateB());
+		}
+		else{
+			// do something
+		}
+	}
+};
+
+#endif //__DEMO_H__

21.StatePattern/2.Code/GameAccount.h

@@ -0,0 +1,28 @@
+#ifndef __GAMEACCOUNT_H__
+#define __GAMEACCOUNT_H__
+
+using namespace std;
+#include <iostream>
+// Ç°ÏòÉùÃ÷
+class Level;
+
+class GameAccount
+{
+public:
+	GameAccount();
+	GameAccount(string iName);
+	string getName();
+	void win();
+	void lose();
+	void playCard();
+	void setLevel(Level*);
+	int getScore();
+	void setScore(int);
+
+private:
+	Level* level;
+	int score;
+	string name;
+};
+
+#endif

21.StatePattern/2.Code/GameAccout.cpp

@@ -0,0 +1,66 @@
+#include "GameAccount.h"
+#include "Level.h"
+#include <Windows.h>
+#include <time.h>
+#define  random(x) (rand()%x)
+
+GameAccount::GameAccount(){
+	printf("创立游戏角色，积分：100，级别：PRIMARY\n");
+	score = 100;
+	name = "none";
+	setLevel(new Primary(this));
+}
+
+GameAccount::GameAccount(string iName){
+	printf("创立游戏角色，积分：100，级别：PRIMARY\n");
+	score = 100;
+	name = iName;
+	setLevel(new Primary(this));
+}
+
+void GameAccount::setLevel(Level* iLevel){
+	this->level = iLevel;
+}
+
+string GameAccount::getName(){
+	return name;
+}
+
+void GameAccount::playCard(){
+	this->level->playCard();
+
+	Sleep(100);
+	srand((int)time(0));
+	int res = random(2);
+	if (res % 2 == 0){
+		this->win();
+	}
+	else{
+		this->lose();
+	}
+
+	this->level->upgradeLevel();
+}
+
+void GameAccount::win(){
+	if (this->getScore() < 200){
+		setScore(getScore() + 50);
+	}
+	else{
+		setScore(getScore() + 100);
+	}
+	printf("\n\t胜利，最新积分为 %d\n", score);
+}
+
+void GameAccount::lose(){
+	setScore(getScore() + 30);
+	printf("\n\t输牌，最新积分为 %d\n", score);
+}
+
+int GameAccount::getScore(){
+	return this->score;
+}
+
+void GameAccount::setScore(int iScore){
+	this->score = iScore;
+}

21.StatePattern/2.Code/Level.cpp

@@ -0,0 +1,158 @@
+#include "Level.h"
+
+/***********     Level    *************/
+Level::Level(){
+
+}
+
+void Level::playCard(){
+	this->play();
+	this->doubleScore();
+	this->changeCards();
+	this->peekCards();
+}
+
+void Level::play(){
+	printf("\t使用基本技能,");
+}
+
+void Level::setGameAccount(GameAccount* iGameAccount){
+	this->gameAccount = iGameAccount;
+}
+
+GameAccount* Level::getGameAccount(){
+	return gameAccount;
+}
+
+/***********     Primary    *************/
+Primary::Primary(){
+
+}
+
+Primary::Primary(GameAccount* iGameAccount){
+	this->setGameAccount(iGameAccount);
+}
+
+Primary::Primary(Level* level){
+	getGameAccount()->setLevel(level);
+}
+
+void Primary::doubleScore(){
+	return;
+}
+
+void Primary::changeCards(){
+	return;
+}
+
+void Primary::peekCards(){
+	return;
+}
+
+void Primary::upgradeLevel(){
+	if (this->getGameAccount()->getScore() > 150){
+		this->getGameAccount()->setLevel(new Secondary(this));
+		printf("\t升级！ 级别：SECONDARY\n\n");
+	}
+	else{
+		printf("\n");
+	}
+}
+
+/***********     Secondary    *************/
+Secondary::Secondary(){
+
+}
+
+Secondary::Secondary(Level* level){
+	this->setGameAccount(level->getGameAccount());
+	getGameAccount()->setLevel(level);
+}
+
+void Secondary::doubleScore(){
+	printf("使用胜利双倍积分技能");
+}
+
+void Secondary::changeCards(){
+	return;
+}
+
+void Secondary::peekCards(){
+	return;
+}
+
+void Secondary::upgradeLevel(){
+	if (this->getGameAccount()->getScore() < 150){
+		this->getGameAccount()->setLevel(new Primary(this));
+		printf("\t降级！ 级别：PRIMARY\n\n");
+	}
+	else if (this->getGameAccount()->getScore() > 200){
+		this->getGameAccount()->setLevel(new Professional(this));
+		printf("\t升级！ 级别：PROFESSIONAL\n\n");
+	}
+}
+
+/***********     Professional    *************/
+Professional::Professional(){
+
+}
+
+Professional::Professional(Level* level){
+	this->setGameAccount(level->getGameAccount());
+	getGameAccount()->setLevel(level);
+}
+
+void Professional::doubleScore(){
+	printf("使用胜利双倍积分技能,");
+}
+
+void Professional::changeCards(){
+	printf("使用换牌技能");
+}
+
+void Professional::peekCards(){
+	return;
+}
+
+void Professional::upgradeLevel(){
+	if (this->getGameAccount()->getScore() < 200){
+		this->getGameAccount()->setLevel(new Secondary(this));
+		printf("\t降级！ 级别：SECONDARY\n\n");
+	}
+	else if (this->getGameAccount()->getScore() > 250){
+		this->getGameAccount()->setLevel(new Final(this));
+		printf("\t升级！ 级别：FINAL\n\n");
+	}
+}
+
+/***********     Final    *************/
+Final::Final(){
+
+}
+
+Final::Final(Level* level){
+	this->setGameAccount(level->getGameAccount());
+	getGameAccount()->setLevel(level);
+}
+
+void Final::doubleScore(){
+	printf("使用胜利双倍积分技能,");
+}
+
+void Final::changeCards(){
+	printf("使用换牌技能,");
+}
+
+void Final::peekCards(){
+	printf("使用偷看卡牌技能");
+}
+
+void Final::upgradeLevel(){
+	if (this->getGameAccount()->getScore() < 250){
+		this->getGameAccount()->setLevel(new Professional(this));
+		printf("\t降级！ 级别：PROFESSIONAL\n\n");
+	}
+	else{
+		printf("\t%s 已经是最高级\n\n", this->getGameAccount()->getName().c_str());
+	}
+}

21.StatePattern/2.Code/Level.h

@@ -0,0 +1,78 @@
+#ifndef __LEVEL_H__
+#define __LEVEL_H__
+
+#include "GameAccount.h"
+
+class Level
+{
+public :
+	Level();
+	// 声明方法
+	void playCard();
+	void play();
+	virtual void doubleScore() = 0;
+	virtual void changeCards() = 0;
+	virtual void peekCards() = 0;
+	// 升级
+	virtual void upgradeLevel() = 0;
+	GameAccount* getGameAccount();
+	void setGameAccount(GameAccount* iGameAccount);
+private:
+	GameAccount* gameAccount;
+};
+
+class Primary;
+class Secondary;
+class Professional;
+class Final;
+
+class Primary :public Level
+{
+public:
+	Primary();
+	Primary(Level* level);
+	Primary(GameAccount* ga);
+	void doubleScore();
+	void changeCards();
+	void peekCards();
+	// 升级
+	void upgradeLevel();
+};
+
+class Secondary :public Level
+{
+public:
+	Secondary();
+	Secondary(Level* level);
+	void doubleScore();
+	void changeCards();
+	void peekCards();
+	// 升级
+	void upgradeLevel();
+};
+
+class Professional :public Level
+{
+public:
+	Professional();
+	Professional(Level* level);
+	void doubleScore();
+	void changeCards();
+	void peekCards();
+	// 升级
+	void upgradeLevel();
+};
+
+class Final :public Level
+{
+public:
+	Final();
+	Final(Level* level);
+	void doubleScore();
+	void changeCards();
+	void peekCards();
+	// 升级
+	void upgradeLevel();
+};
+
+#endif

21.StatePattern/2.Code/main.cpp

@@ -0,0 +1,16 @@
+#include "GameAccount.h"
+#include "Level.h"
+
+int main()
+{
+	GameAccount *jungle = new GameAccount("Jungle");
+
+	for (int i = 0; i < 5; i++){
+		printf("第%d局：\n", i + 1);
+		jungle->playCard();
+	}
+
+	printf("\n\n");
+	system("pause");
+	return 0;
+}

README.md

@@ -94,3 +94,7 @@ Jungle设计模式系列
 23.设计模式（二十三）——观察者模式
 
 博客地址：https://blog.csdn.net/sinat_21107433/article/details/102927937
+
+24.设计模式（二十四）——状态模式
+
+博客地址：https://blog.csdn.net/sinat_21107433/article/details/102966121