设计模式例程

inc/state.hpp

@@ -0,0 +1,74 @@
+#pragma once
+#include "common.hpp"
+
+class State;
+class Context               // <20><><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD>࣬<EFBFBD><E0A3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<D7B4><CCAC><EFBFBD>л<EFBFBD>
+{
+public:
+	Context();
+	~Context();
+
+	void addState(State* state);
+	bool changeState(State* state);
+	State* getState();
+	void setStateInfo(int stateInfo);
+	int getStateInfo();
+
+private:
+	State* p_curState;
+	vector<State*> p_states;
+	int m_stateInfo;
+};
+
+class Water;
+
+class State
+{
+public:
+	State(string name) :m_name(name) {};
+	virtual void behavior(Water* p_water) const = 0;
+	virtual bool isMatch(int stateInfo) const = 0;
+	string getName();
+
+private:
+	string m_name;
+};
+
+
+class SolidState :public State
+{
+public:
+	SolidState(string name) :State(name) {};
+	void behavior(Water* p_water) const;
+	bool isMatch(int stateInfo) const;
+};
+
+class Liquidtate :public State
+{
+public:
+	Liquidtate(string name) :State(name) {};
+	void behavior(Water* p_water) const;
+	bool isMatch(int stateInfo) const;
+};
+
+class GaseousState :public State
+{
+public:
+	GaseousState(string name) :State(name) {};
+	void behavior(Water* p_water) const;
+	bool isMatch(int stateInfo) const;
+};
+
+class Water :public Context
+{
+public:
+	Water();
+
+	int getTemperature();
+	void setTemperature(int temperature);
+	void riseTemperature(int step);
+	void reduceTemperature(int step);
+
+	void behavior();
+
+};