C++ 언어 연습문제11

[문제]

아래의 코드를 가지고 Car.h, Car.cpp, RacingMain.cpp로 파일을 나눠라.

#include <iostream>
#include <cstring>
using namespace std;

namespace CAR_CONST
{
	enum
	{
		ID_LEN = 20, MAX_SPD = 200, FUEL_STEP = 2,
		ACC_STEP = 10, BRK_STEP = 10
	};
}

class Car
{
private:
	char gamerID[CAR_CONST::ID_LEN];
	int fuelGauge;
	int curSpeed;
public:
	void InitMembers(const char* ID, int fuel);
	void ShowCarState();
	void Accel();
	void Break();
};

void Car::InitMembers(const char* ID, int fuel)
{
	strcpy(gamerID, ID);
	fuelGauge = fuel;
	curSpeed = 0;
}

void Car::ShowCarState()
{
	cout << "소유자ID: " << gamerID << endl;
	cout << "연료량: " << fuelGauge << "%" << endl;
	cout << "현재 속도: " << curSpeed << "km/s" << endl << endl;
}

void Car::Accel()
{
	if (fuelGauge <= 0)
		return;
	else
		fuelGauge -= CAR_CONST::FUEL_STEP;

	if ((curSpeed + CAR_CONST::ACC_STEP) >= CAR_CONST::MAX_SPD)
	{
		curSpeed = CAR_CONST::MAX_SPD;
		return;
	}
	curSpeed += CAR_CONST::ACC_STEP;
}

void Car::Break()
{
	if (curSpeed < CAR_CONST::BRK_STEP)
	{
		curSpeed = 0;
		return;
	}
	curSpeed -= CAR_CONST::BRK_STEP;
}
int main()
{
	Car run99;
	run99.InitMembers("run99", 100);
	run99.Accel();
	run99.Accel();
	run99.Accel();
	run99.ShowCarState();
	run99.Break();
	run99.ShowCarState();

	return 0;
}

 

[실행 결과]

소유자ID: run99
연료량: 94%
현재속도: 30km/s

소유자ID: run99
연료량: 94%
현재속도: 20km/s

 

[코드]

1. Car.h

#ifndef __CAR_H__
#define __CAR_H__

namespace CAR_CONST
{
	enum
	{
		ID_LEN = 20, MAX_SPEED = 200, FUEL_STEP = 2,
		ACC_STEP = 10, BREAK_STEP = 10
	};
}

class Car
{
private:
	char gamerID[CAR_CONST::ID_LEN];
	int fuelGauge;
	int curSpeed;
public:
	void InitMembers(const char* ID, int fuel);
	void ShowCarState();
	void Accel();
	void Break();
};

#endif

 

2. Car.cpp

#include<iostream>
#include<cstring>
#include "Car.h"

using namespace std;

void Car::InitMembers(const char* ID, int fuel)
{
	strcpy(gamerID, ID);
	fuelGauge = fuel;
	curSpeed = 0;
}

void Car::ShowCarState()
{
	cout << "소유자ID: " << gamerID << endl;
	cout << "연료량: " << fuelGauge << "%" << endl;
	cout << "현재속도: " << curSpeed << "km/s" << endl << endl;
}

void Car::Accel()
{
	if (fuelGauge <= 0)
		return;
	else
		fuelGauge -= CAR_CONST::FUEL_STEP;

	if (curSpeed >= CAR_CONST::MAX_SPEED)
	{
		curSpeed = CAR_CONST::MAX_SPEED;
		return;
	}
	curSpeed += CAR_CONST::ACC_STEP;
}

void Car::Break()
{
	if (curSpeed < CAR_CONST::BREAK_STEP)
		curSpeed = 0;

	curSpeed -= CAR_CONST::BREAK_STEP;
}

 

3. RacingMain.cpp

#include "Car.h"

int main()
{
	Car run99;
	run99.InitMembers("run99", 100);
	run99.Accel();
	run99.Accel();
	run99.Accel();
	run99.ShowCarState();
	run99.Break();
	run99.ShowCarState();

	return 0;
}

 

<참고>

윤성우의 열혈 C++ 프로그래밍