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Vending Machine/세연/1002


1.

2 해 해.
  1. 확하 /함& 해 - . 하 한 , 함/ 한.

  2. magic number (ex : 하 ) 해 - const

  3. - 함 & . , 하 함 하 .

  4. - 해 함 & .


1-4 해 . 하 합. ( 확할 . -_-;)

2. menu : 3 

~cpp 
void printMenu () {
	cout << "\n판 \n";
	cout << "1. \n";
	cout << "2. \n";
	cout << "3.  \n";
	cout << "4. \n";
	cout << "0.한\n"; 
	cout << " 택하 : ";
}

3. while loop - 1 

~cpp 
bool isEndMenu (int choice) {
	return choice != 0;
}


~cpp 
	while(isEndMenu (choice))
	{
		printMenu ();
		cin >> choice;
		.
		.

4. choice != 0 : 2 

~cpp 
enum {
	MENU_END = 0,
};


~cpp 
bool isEndMenu (int choice) {
	return choice != MENU_END;
}

5. MENU 해 : 2 

~cpp 
enum {
	MENU_END = 0,
	MENU_GET_MONEY,
	MENU_BUY,
	MENU_TAKEBACK_MONEY,
	MENU_INSERT_DRINK
};

~cpp 
			switch(choice)
			{
			case MENU_GET_MONEY:
				VendingMachine.GetMoney();
				break;
			case MENU_BUY:
				VendingMachine.Buy();
				break;
			case MENU_TAKEBACK_MONEY:
				VendingMachine.TakeBackMoney();
				break;
			case MENU_INSERT_DRINK:
				VendingMachine.InsertDrink();
				break;
			case MENU_END:
				cout << "판 합!!\n\n"; 
				break;
			}

6. MENU 택 (choice >= 0 && choice <= 4), 잘못된 메뉴 선택 골라주기 : 1, 2번 

~cpp 
bool isValidMenu (int choice) {
	return choice >= 0 && choice <= 4;
}
2 해 
~cpp 
bool isValidMenu (int choice) {
	return choice >= MENU_END && choice <= MENU_INSERT_DRINK;
}
.. 확해 . enum 해
~cpp 
enum {
	MENU_ENDCODE = 0,
	MENU_START = 0,
	MENU_GET_MONEY,
	MENU_BUY,
	MENU_TAKEBACK_MONEY,
	MENU_INSERT_DRINK,
	MENU_END = MENU_INSERT_DRINK
};
MENU_END , MENU_END .
~cpp 
			case MENU_ENDCODE:
				cout << "판 합!!\n\n"; 
				break;
			}

~cpp 
bool isEndMenu (int choice) {
	return choice != MENU_ENDCODE;
}
, ~cpp isValidMenu . ( , 해. -_-;)
~cpp 
bool isValidMenu (int choice) {
	return choice >= MENU_START && choice <= MENU_END;
}

7. Menu - 1 

~cpp 
			case MENU_ENDCODE:
				VendingMachine.EndMachine();
				break;
			}
		}
		else 
			VendingMachine.PrintErrorMessage ();
	}
히 .. Vending Machine UI 확하 . ( Requirement , MFC 픽 ? , Vending Machine UI '' . Vending Machine '' 하 .)

하 Vending Machine 클 UI 한 클 해 합. 행하 하.

할 통 Input / Output 항 Vending Machine , Vending Machine 페 Input / Output 하 .

8. Vending Machine 화 - 4 

~cpp 
const int DRINKNAME_MAXLENGTH = 255;
const int TOTAL_DRINK_TYPE = 5;

~cpp 
vending_machine::vending_machine()
{
	money = temp_money = 0;
	select_money = 1;
	max_num = TOTAL_DRINK_TYPE;

	char drinkNames[TOTAL_DRINK_TYPE][DRINKNAME_MAXLENGTH] = {"coke", "juice", "tea", "cofee", "milk"};
	int price[TOTAL_DRINK_TYPE] = {400, 600, 500, 450, 350};

	for (int i=0; i<max_num; i++) {
		strcpy(s_drink[i].name , drinkNames[i]);
		s_drink[i].price = price[i];
		s_drink[i].amount = 10;
	}
}


합. 큰 화 . ^^ ( 학 한 ;)

~cpp 
#include <iostream>
using namespace std;

enum {
	MENU_ENDCODE = 0,
	MENU_START = 0,
	MENU_GET_MONEY,
	MENU_BUY,
	MENU_TAKEBACK_MONEY,
	MENU_INSERT_DRINK,
	MENU_END = MENU_INSERT_DRINK
};

const int DRINKNAME_MAXLENGTH = 255;
const int TOTAL_DRINK_TYPE = 5;

class vending_machine
{
private:
	int money;
	int temp_money;
	int select_money, select_drink, insert_amount;
	struct drink
	{
		char name[DRINKNAME_MAXLENGTH];
		int price, amount;
	};
	drink s_drink[5];
	int max_num;
	
public:

	vending_machine();
	void GetMoney();
	void Buy();
	void TakeBackMoney();
	void InsertDrink();
	void EndMachine();
	void PrintErrorMessage ();
};

vending_machine::vending_machine()
{
	money = temp_money = 0;
	select_money = 1;
	max_num = TOTAL_DRINK_TYPE;

	char drinkNames[TOTAL_DRINK_TYPE][DRINKNAME_MAXLENGTH] = {"coke", "juice", "tea", "cofee", "milk"};
	int price[TOTAL_DRINK_TYPE] = {400, 600, 500, 450, 350};

	for (int i=0; i<max_num; i++) {
		strcpy(s_drink[i].name , drinkNames[i]);
		s_drink[i].price = price[i];
		s_drink[i].amount = 10;
	}
}
	
void vending_machine::GetMoney()
{
	cout << " . 10, 50, 100, 500, 1000  : ";
	cin >> temp_money;
	if(temp_money == 10 || temp_money == 50 || temp_money == 100 || temp_money == 500 || temp_money == 1000)
		money = money + temp_money;
	else
		cout << "10, 50, 100, 500, 1000 합.  해\n";
			
	cout << money << " \n";
}

void vending_machine::Buy()
{
	
	cout << "\t\t\t\n";
	cout << "------------------------------------\n";
	for(int i = 0 ; i < max_num ; i++)
		cout << i + 1 << "."  << s_drink[i].name << "\t\t" << s_drink[i].price << "\t" << s_drink[i].amount << "\n";
	
	cout << "\n " << money << " \n";
	cout << "하  택하 : ";
	cin >> select_drink;
	switch(select_drink)
	{
	case 1:
		if((money - s_drink[select_drink - 1].price) >= 0 && s_drink[select_drink - 1].amount >= 1)
		{
			s_drink[select_drink - 1].amount--;
			money = money - s_drink[select_drink - 1].price;
		}
		else
			cout << " 하  해\n";
		break;
	case 2:
		if((money - s_drink[select_drink - 1].price) >= 0 && s_drink[select_drink - 1].amount >= 1)
		{
			s_drink[select_drink - 1].amount--;
			money = money - s_drink[select_drink - 1].price;
		}
		else
			cout << " 하  해\n";
		break;
	case 3:
		if((money - s_drink[select_drink - 1].price) >= 0 && s_drink[select_drink - 1].amount >= 1)
		{
			s_drink[select_drink - 1].amount--;
			money = money - s_drink[select_drink - 1].price;
		}
		else
			cout << " 하  해\n";
		break;
	case 4:
		if((money - s_drink[select_drink - 1].price) >= 0 && s_drink[select_drink - 1].amount >= 1)
		{
			s_drink[select_drink - 1].amount--;
			money = money - s_drink[select_drink - 1].price;
		}
		else
			cout << " 하  해\n";
		break;
	case 5:
		if((money - s_drink[select_drink - 1].price) >= 0 && s_drink[select_drink - 1].amount >= 1)
		{
			s_drink[select_drink - 1].amount--;
			money = money - s_drink[select_drink - 1].price;
		}
		else
			cout << " 하  해\n";
		break;
	
	}
	cout << money << " \n";
}

void vending_machine::TakeBackMoney()
{
	cout << "" << money << " \n";
	money = 0;
}

void vending_machine::InsertDrink()
{
	for(int i = 0 ; i < max_num ; i++)
		cout << i + 1 << "." << s_drink[i].name << "\t" << s_drink[i].amount << "\n";
	cout << " 하  택하 : ";
	cin >> select_drink;
	cout << " 하   해 : ";
	cin >> insert_amount;

	switch(select_drink)
	{
	case 1:
		s_drink[select_drink - 1].amount += insert_amount;
		break;
	case 2:
		s_drink[select_drink - 1].amount += insert_amount;
		break;
	case 3:
		s_drink[select_drink - 1].amount += insert_amount;
		break;
	case 4:
		s_drink[select_drink - 1].amount += insert_amount;
		break;
	case 5:
		s_drink[select_drink - 1].amount += insert_amount;
		break;
	}
	cout << " \n";
	for(i = 0 ; i < max_num ; i++)
		cout << i + 1 << "." << s_drink[i].name << "\t" << s_drink[i].amount << "\n";
}

void vending_machine::EndMachine()
{
	cout << "판 합!!\n\n"; 
}

void vending_machine::PrintErrorMessage ()
{
	cout << "  택.   해\n";
}

void printMenu () {
	cout << "\n판 \n";
	cout << "1. \n";
	cout << "2. \n";
	cout << "3.  \n";
	cout << "4. \n";
	cout << "0.한\n"; 
	cout << " 택하 : ";
}

bool isEndMenu (int choice) {
	return choice != MENU_ENDCODE;
}

bool isValidMenu (int choice) {
	return choice >= MENU_START && choice <= MENU_END;
}

int main()
{
	vending_machine VendingMachine;
	int choice = -1;

	while(isEndMenu (choice))
	{
		printMenu ();
		cin >> choice;
		if(isValidMenu (choice))
		{
			switch(choice)
			{
			case MENU_GET_MONEY:
				VendingMachine.GetMoney();
				break;
			case MENU_BUY:
				VendingMachine.Buy();
				break;
			case MENU_TAKEBACK_MONEY:
				VendingMachine.TakeBackMoney();
				break;
			case MENU_INSERT_DRINK:
				VendingMachine.InsertDrink();
				break;
			case MENU_ENDCODE:
				VendingMachine.EndMachine();
				break;
			}
		}
		else 
			VendingMachine.PrintErrorMessage ();
	}

	return 0;
}

9. vending_machine::GetMoney () - 1, 3, 4

' 하' 할 InsertMoney InsertCoin 확한 표 . , 하 해 함 comment 할 .
~cpp 
bool vending_machine::isValidMoney (int money) {
	return (temp_money == 10 || temp_money == 50 || temp_money == 100 || temp_money == 500 || temp_money == 1000);
}

void vending_machine::InsertMoney() 
{ 
        cout << " . 10, 50, 100, 500, 1000  : "; 
        cin >> temp_money; 
	if (isValidMoney (temp_money)) {
	        money = money + temp_money; 
	}
        else 
                cout << "10, 50, 100, 500, 1000 합.  해\n"; 
                         
        cout << money << " \n"; 
}

, 하 , 폭 . 해 , 편합.
~cpp 
bool vending_machine::isValidMoney (int money) {
	int validMoneys[5] = {10, 50, 100, 500, 1000};

	for (int i=0;i<5;i++) {
		if (money == validMoney[i]) return true;
	}
	return false;
}

, 한 & 화 (2 or 3 strike) 해 . 해 .

, 할 , 할 . ( 해 ) .

~cpp 
const int validMoney[5] = {10, 50, 100, 500, 1000};

void vending_machine::printInsertCoinMenu () {
        cout << " . 10, 50, 100, 500, 1000  : "; 
}

void vending_machine::printErrorInvalidCoinMessage () {
        cout << "10, 50, 100, 500, 1000 합.  해\n"; 
}
void vending_machine::printCurrentMoney () {
        cout << money << " \n"; 
}

bool vending_machine::isValidMoney (int money) {

	for (int i=0;i<5;i++) {
		if (money == validMoney[i]) return true;
	}
	return false;
}


void vending_machine::InsertMoney() 
{ 
	printInsertCoinMenu ();
        cin >> temp_money; 
	if (isValidMoney (temp_money)) {
	        money = money + temp_money; 
	        printCurrentMoney ();
	}
        else 
		printErrorInvalidCoinMessage ();
                         
}
한 
~cpp 
void vending_machine::printInsertCoinMenu () {
        cout << " . ";
	for (int i=0;i<4;i++) {
		cout << validMoneys[i] << ","
	}
	cout << valiMoneys[4] << "  : ";
}

10. temp_money - 4

temp_money 하 한 합.
~cpp 
void vending_machine::InsertMoney()  
{  
	printInsertCoinMenu (); 
	cin >> temp_money;  
	if (isValidMoney (temp_money)) { 
		money = money + temp_money;  
		printCurrentMoney (); 
	} 
	else  
		printErrorInvalidCoinMessage (); 
	
}
, private . 한 한 .
~cpp 
void vending_machine::InsertMoney()  
{  
	int temp_money = 0;

	printInsertCoinMenu (); 
	cin >> temp_money;  
	
	if (isValidMoney (temp_money)) { 
		money = money + temp_money;  
		printCurrentMoney (); 
	} 
	else  
		printErrorInvalidCoinMessage (); 
}

11. vending_machine::Buy () - 1,3,4

1 - menu 트 & i -> drinkIndex .
~cpp 
void vending_machine::printBuyMenu () {
	cout << "\t\t\t\n"; 
	cout << "------------------------------------\n"; 
	for(int drinkIndex = 0 ; drinkIndex < max_num ; drinkIndex++) 
		cout << drinkIndex + 1 << "."  
			<< s_drink[drinkIndex].name << "\t\t" 
			<< s_drink[drinkIndex].price << "\t" 
			<< s_drink[drinkIndex].amount << "\n"; 
	
	cout << "\n " << money << " \n"; 
	cout << "하  택하 : "; 
}

void vending_machine::Buy() 
{ 
	printBuyMenu ();
	.
	.
2 - switch & case

해 화 하 한 switch & case . 해 .

~cpp 
void vending_machine::Buy() 
{ 
	printBuyMenu ();

	cin >> select_drink; 

	if((money - s_drink[select_drink-1].price) >= 0 && s_drink[select_drink-1].amount >= 1) { 
		s_drink[select_drink-1].amount--; 
		money = money - s_drink[select_drink-1].price; 
	} 
	else 
		cout << " 하  해\n"; 

	cout << money << " \n"; 
}
, select_drink-1 , 호 1,2,3,4 ... 함 . select_drink 한 vending_machine , 히 하 한 .

12. vending_machine::InsertDrink - 3,4 

~cpp 
void vending_machine::InsertDrink() 
{ 
	int select_drink;
	int insert_amount;

	printCurrentDrinkStatus ();
	cout << " 하  택하 : "; 
	cin >> select_drink; 
	cout << " 하   해 : "; 
	cin >> insert_amount; 
	
	if (select_drink-1 > 0 && select_drink-1 <=5) 
		s_drink[select_drink-1].amount += insert_amount; 

	cout << " \n"; 
	printCurrentDrinkStatus ();
}

13. 

~cpp 
#include <iostream>  
using namespace std;  

enum {  
	MENU_ENDCODE = 0,  
        MENU_START = 0,  
        MENU_GET_MONEY,  
        MENU_BUY,  
        MENU_TAKEBACK_MONEY,  
        MENU_INSERT_DRINK,  
        MENU_END = MENU_INSERT_DRINK  
};  

const int DRINKNAME_MAXLENGTH = 255;  
const int TOTAL_DRINK_TYPE = 5;  
const int validMoney[5] = {10, 50, 100, 500, 1000};  

class vending_machine  
{  
private:  
	int money;  
	struct drink  
	{  
		char name[DRINKNAME_MAXLENGTH];  
		int price, amount;  
	};  
	drink s_drink[TOTAL_DRINK_TYPE];  
	int max_num;  
	
	public:  
		
        vending_machine();  
        void InsertMoney();  
        void Buy();  
        void TakeBackMoney();  
        void InsertDrink();  
        void EndMachine();  
		
		bool isValidMoney (int money); 
		
        void PrintErrorMessage ();  
		void PrintErrorInvalidCoinMessage (); 
		void PrintInsertCoinMenu(); 
		void PrintCurrentMoney (); 
		void PrintBuyMenu (); 
		void PrintCurrentDrinkStatus (); 
};  

vending_machine::vending_machine()  
{  
	money = 0;  
	max_num = TOTAL_DRINK_TYPE;  
	
	char drinkNames[TOTAL_DRINK_TYPE][DRINKNAME_MAXLENGTH] = {"coke", "juice", "tea", "cofee", "milk"};  
	int price[TOTAL_DRINK_TYPE] = {400, 600, 500, 450, 350};  
	
	for (int i=0; i<max_num; i++) {  
		strcpy(s_drink[i].name , drinkNames[i]);  
		s_drink[i].price = price[i];  
		s_drink[i].amount = 10;  
	}  
}  

void vending_machine::PrintInsertCoinMenu () {  
	cout << " . ";  
	for (int i=0;i<4;i++) 
		cout << validMoney[i] << "," ; 
	cout << validMoney[4] << "  : ";  
}  

void vending_machine::PrintErrorInvalidCoinMessage () {  
	cout << " . ";  
	for (int i=0;i<4;i++) 
		cout << validMoney[i] << ","; 
	cout << validMoney[4] << " 합.  해\n";  
}  

void vending_machine::PrintCurrentMoney () {  
	cout << money << " \n";   
}  

bool vending_machine::isValidMoney (int money) {  
	for (int i=0;i<5;i++) 
		if (money == validMoney[i]) return true;  
	return false;  
}  

void vending_machine::InsertMoney()   
{   
	int temp_money = 0; 
	
	PrintInsertCoinMenu ();  
	cin >> temp_money;   
	
	if (isValidMoney (temp_money)) {  
		money = money + temp_money;   
		PrintCurrentMoney ();  
	}  
	else   
		PrintErrorInvalidCoinMessage ();  
}   

void vending_machine::PrintBuyMenu () { 
	cout << "\t\t\t\n";  
	cout << "------------------------------------\n";  

	for(int drinkIndex = 0 ; drinkIndex < max_num ; drinkIndex++)  
		cout << drinkIndex + 1 << "."   
		<< s_drink[drinkIndex].name << "\t\t"  
		<< s_drink[drinkIndex].price << "\t"  
		<< s_drink[drinkIndex].amount << "\n";  
	
	cout << "\n " << money << " \n";  
	cout << "하  택하 : ";  
} 

void vending_machine::Buy()  
{  
	PrintBuyMenu (); 
	
	int select_drink; 
	
	cin >> select_drink;  
	
	if((money - s_drink[select_drink-1].price) >= 0 && s_drink[select_drink-1].amount >= 1) {  
		s_drink[select_drink-1].amount--;  
		money = money - s_drink[select_drink-1].price;  
	}  
	else  
		cout << " 하  해\n";  
	
	cout << money << " \n";  
}  

void vending_machine::TakeBackMoney()  
{  
	cout << "" << money << " \n";  
	money = 0;  
}  

void vending_machine::PrintCurrentDrinkStatus () { 
	for(int drinkIndex = 0 ; drinkIndex < max_num ; drinkIndex++)  
		cout << drinkIndex + 1 << "." 
		<< s_drink[drinkIndex].name << "\t" 
		<< s_drink[drinkIndex].amount << "\n";  
} 

void vending_machine::InsertDrink()  
{  
	int select_drink; 
	int insert_amount; 
	
	PrintCurrentDrinkStatus (); 
	cout << " 하  택하 : ";  
	cin >> select_drink;  
	cout << " 하   해 : ";  
	cin >> insert_amount;  
	
	if (select_drink-1 > 0 && select_drink-1 <=5)  
		s_drink[select_drink-1].amount += insert_amount;  
	
	cout << " \n";  
	PrintCurrentDrinkStatus (); 
}  

void vending_machine::EndMachine()  
{  
	cout << "판 합!!\n\n";   
}  

void vending_machine::PrintErrorMessage ()  
{  
	cout << "  택.   해\n";  
}  

void PrintMenu () {  
	cout << "\n판 \n";  
	cout << "1. \n";  
	cout << "2. \n";  
	cout << "3.  \n";  
	cout << "4. \n";  
	cout << "0.한\n";   
	cout << " 택하 : ";  
}  

bool isEndMenu (int choice) {  
	return choice != MENU_ENDCODE;  
}  

bool isValidMenu (int choice) {  
	return choice >= MENU_START && choice <= MENU_END;  
}  

void vending_machine::Run () {
	int choice = -1;  
	
	while(isEndMenu (choice))  
	{  
		PrintMenu ();  
		cin >> choice;  
		if(isValidMenu (choice))  
		{  
			switch(choice)  
			{  
			case MENU_GET_MONEY:  
				InsertMoney();  
				break;  
			case MENU_BUY:  
				Buy();  
				break;  
			case MENU_TAKEBACK_MONEY:  
				TakeBackMoney();  
				break;  
			case MENU_INSERT_DRINK:  
				InsertDrink();  
				break;  
			case MENU_ENDCODE:  
				EndMachine();  
				break;  
			}  
		}  
		else   
			PrintErrorMessage ();  
	}  
}


int main()  
{  
	vending_machine VendingMachine;  
	VendingMachine.Run ();
	return 0;  
}

- vending_machine 히 God 클. 히 vending_machine .

Vending Machine 
~cpp 
#ifndef _VENDINGMACHINE_H_
#define _VENDINGMACHINE_H_

#include <iostream>   
#include <string>
#include <vector>
#include <map>
#include <algorithm>
using namespace std;   

class Drink   
{   
public:
	string name;   
	int price;
	int amount;   
	
	Drink (string name, int price, int amount) {
		this->name = name;
		this->price = price;
		this->amount = amount;
	}
};   

class VendingMachine   
{   
public:   
	int money;   
	vector <Drink*> drinks;
	vector <int> validMoney;

	VendingMachine() {
		this->money = 0;   
		
		string drinkNames[] = {"coke", "juice", "tea", "cofee", "milk"};   
		int price[] = {400, 600, 500, 450, 350};   
		int defaultAmount = 10;
		int TOTAL_DRINK_TYPE = 5;

		int validMoneyList[] = {10, 50, 100, 500, 1000};   
		int TOTAL_MONEY_TYPE = 5;

		Drink* drink;
		for (int drinkIndex=0; drinkIndex<TOTAL_DRINK_TYPE; drinkIndex++) {   
			drink = new Drink(drinkNames[drinkIndex], price[drinkIndex], defaultAmount);
			registerDrink (drink);
		}   
		for (int moneyIndex=0; moneyIndex<TOTAL_MONEY_TYPE; moneyIndex++) {
			registerMoneyType (validMoneyList[moneyIndex]);
		}
	}

	~VendingMachine () {
		for (int i=0; i< drinks.size(); i++) {
			delete drinks[i];
		}
		drinks.clear();
	}

	void registerMoneyType (int moneyType) {
		validMoney.push_back(moneyType);	
	}

	bool isValidDrinkIndex (int drinkIndex) {
		return (drinkIndex>=0 && drinkIndex <5);
	}

	void chargeDrink (int drinkIndex, int amount) {
		drinks[drinkIndex]->amount += amount;   
	}

	vector<int> getValidMoneyTypes(void) {
		return this->validMoney;
	}

	bool VendingMachine::isBuyable(int drinkId) {
		return ((getMoney() - drinks[drinkId]->price >= 0) && 
			(drinks[drinkId]->amount >= 1));
	}

	vector<Drink*> getRegisteredDrinks () {
		return this->drinks;
	}

	void VendingMachine::buy (int drinkId) {
		drinks[drinkId]->amount--;   
		chargeMoney (drinks[drinkId]->price);
	}
	
	void registerDrink (Drink* drink) {
		drinks.push_back(drink);
	}

	bool isValidMoneyType (int money) {   
		for (int i=0; i<validMoney.size();i++) {
			if (validMoney[i] == money)
				return true;
		}

		return false;
	}   
	
	int takeBackMoney()   
	{  
		int takeBackMoney = this->money;
		this->money = 0;   
		return takeBackMoney;
	}   
	
	void insertMoney (int money) {
		this->money += money;
	}

	void chargeMoney (int drinkPrice) {
		this->money -= drinkPrice;   
	}
	
	int getMoney () {
		return money;
	}
};   
#endif

main.cpp
#include "VendingMachine.h"
#include <iostream>   
#include <map>
using namespace std;   

enum {   
	MENU_ENDCODE = 0,   
	MENU_START = 0,   
	MENU_GET_MONEY,   
	MENU_BUY,   
	MENU_TAKEBACK_MONEY,   
	MENU_INSERT_DRINK,   
	MENU_END = MENU_INSERT_DRINK   
};   

typedef void(*Func)(VendingMachine&);   

void InsertMoney(VendingMachine& vendingMachine);   
void Buy(VendingMachine& vendingMachine);   
void TakeBackMoneyMenu(VendingMachine& vendingMachine);   
void InsertDrink(VendingMachine& vendingMachine);   
void EndMachine(VendingMachine& vendingMachine);   

void PrintErrorMessage ();   
void PrintErrorInvalidCoinMessage (VendingMachine& vendingMachine);  
void PrintInsertCoinMenu();  
void PrintCurrentMoney (int money);  
void PrintBuyMenu (int money);  
void PrintCurrentDrinkStatus ();  

void PrintErrorInvalidCoinMessage (VendingMachine& vendingMachine) {   
	cout << " . ";   
	vector<int> validMoney = vendingMachine.getValidMoneyTypes();

	for (int i=0;i<validMoney.size()-1;i++)  
		cout << validMoney[i] << ",";  
	cout << validMoney[i] << " 합.  해\n";   
}   

void PrintCurrentMoney (int money) {   
	cout << money << " \n";    
}   

void PrintBuyMenu (VendingMachine& vendingMachine) {  
	cout << "\t\t\t\n";   
	cout << "------------------------------------\n";   

	vector <Drink*> drinks = vendingMachine.getRegisteredDrinks();
	
	for(int drinkIndex = 0 ; drinkIndex < drinks.size() ; drinkIndex++)   {
		cout << drinkIndex << "."    
		<< drinks[drinkIndex]->name << "\t\t"   
		<< drinks[drinkIndex]->price << "\t"   
		<< drinks[drinkIndex]->amount << "\n";   
	}
	
	PrintCurrentMoney (vendingMachine.getMoney());
	cout << "하  택하 : ";   
}  

void Buy(VendingMachine& vendingMachine)   
{   
	PrintBuyMenu (vendingMachine);  

	int drinkId;
	cin >> drinkId;   

	if(vendingMachine.isBuyable(drinkId)) {   
		vendingMachine.buy (drinkId);
		cout << vendingMachine.getMoney() << " \n";   
	}   
	else   
		cout << " 하  해\n";   
}   

void TakeBackMoney (VendingMachine& vendingMachine) {
	int takeBackMoney = vendingMachine.takeBackMoney ();
	cout << "" << takeBackMoney << " \n";   
}

void PrintCurrentDrinkStatus (VendingMachine& vendingMachine) {  
	vector<Drink*> drinks = vendingMachine.getRegisteredDrinks();

	for(int drinkIndex = 0 ; drinkIndex < drinks.size() ; drinkIndex++)   
		cout << drinkIndex << "."  
		<< drinks[drinkIndex]->name << "\t"  
		<< drinks[drinkIndex]->amount << "\n";   
}  

void PrintErrorMessage ()   
{   
	cout << "  택.   해\n";   
}   

void InsertMoney(VendingMachine& vendingMachine)    
{    
	int money = 0;
	cout << " . ";   
	vector<int> validMoney = vendingMachine.getValidMoneyTypes();

	for (int i=0;i<validMoney.size()-1;i++)  
		cout << validMoney[i] << "," ;  
	cout << validMoney[i] << "  : ";   

	cin >> money; 
	
	if (vendingMachine.isValidMoneyType (money)) {
		vendingMachine.insertMoney (money);
		PrintCurrentMoney (vendingMachine.getMoney ());   
	}   
	else    
		PrintErrorInvalidCoinMessage (vendingMachine);   
}    

void InsertDrink(VendingMachine& vendingMachine)   
{   
	int selectDrink;  
	int insertAmount;  
	
	PrintCurrentDrinkStatus (vendingMachine);  
	cout << " 하  택하 : ";   
	cin >> selectDrink;   
	cout << " 하   해 : ";   
	cin >> insertAmount;   
	
	if (vendingMachine.isValidDrinkIndex (selectDrink)) {
		vendingMachine.chargeDrink (selectDrink, insertAmount);

		cout << " \n";   
	}
	PrintCurrentDrinkStatus (vendingMachine);  
}   

void EndMachine(VendingMachine& vendingMachine)   
{   
	cout << "판 합!!\n\n";    
}   

bool isEndMenu (int choice) {   
	return choice != MENU_ENDCODE;   
}   

bool isValidMenu (int choice) {   
	return choice >= MENU_START && choice <= MENU_END;   
}   

int InputMainMenu () {
	int choice = -1;
	cout << "\n판 \n" 
		 << "1. \n"
		 << "2. \n"   
		 << "3.  \n" 
		 << "4. \n" 
		 << "0.한\n" 
		 << " 택하 : ";   

	cin >> choice;
	return choice;
}

int main()   
{   
	VendingMachine vendingMachine;   
	int choice = -1;

	int  menuList[] = { MENU_GET_MONEY, MENU_BUY, MENU_TAKEBACK_MONEY, MENU_INSERT_DRINK, MENU_ENDCODE};
	Func funcList[] = { InsertMoney, Buy, TakeBackMoney, InsertDrink, EndMachine };

	map<int, Func> menuTable;

	for (int menuIndex=0; menuIndex<5; menuIndex++) {
		menuTable[menuList[menuIndex]] = funcList[menuIndex];
	}

	while (isEndMenu (choice)) {
		choice = InputMainMenu ();
		if (isValidMenu (choice)) {
			(*menuTable[choice])(vendingMachine);
		}
		else    
			PrintErrorMessage ();   
	}   

	return 0;   
}
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