[JAVA] 명품 자바 프로그래밍 5장 Open Challenge

추상 클래스 : GameObject

public abstract class GameObject{
	
	protected int distance; // 한번 이동 거리
	protected int x, y; // 현재 위치
	public GameObject(int startX, int startY, int distance)
	{
		this.x=startX;
		this.y=startY;
		this.distance=distance;
	}
	public int getX() { return x; }
	public int getY() { return y; }
	public boolean collide(GameObject p)
	{ //이 객체가 객체 p와 충돌했으면 true 리턴
		if(this.x==p.getX()&&this.y==p.getY())
			return true;
		else
			return false;
	}
	// 이동한 후의 새로운 위치로 x,y 변경
	protected abstract void move();
	
	// 객체의 모양을 나타내는 문자 리턴
	protected abstract char getShape();
}

 

Bear 클래스

class Bear extends GameObject{
	
	char shape;
	
	Bear()
	{
		super(0,0,1);
		shape='B';
	}
	
	protected void move() {
		System.out.print("왼쪽(a), 아래(s), 위(d), 오른쪽(F) >> ");
		Scanner scanner = new Scanner(System.in);
		char c = scanner.next().charAt(0);
		if(c=='a'&&x-1>=0)
			x-=1;
		else if(c=='s'&&y+1<10)
			y+=1;
		else if(c=='d'&&y-1>=0)
			y-=1;
		else if(c=='f'&&x+1<20)
			x+=1;
	}
	
	protected char getShape()
	{
		return shape;
	}
	
}

 

Fish 클래스

class Fish extends GameObject{
	
	char shape;
	int cnt;
	int mcnt;
	Fish()
	{
		super(5,5,1);
		shape='@';
		cnt=0;
	}
	
	protected void move() {
		
		if(cnt==5)
		{
			cnt=0;
			mcnt=0;
		}
		
		if(mcnt<2)
		{
			int num = (int)(Math.random()*4);
			System.out.println(num);
			if(num==0&&x-1>=0)
				x-=1;
			else if(num==1&&y+1<10)
				y+=1;
			else if(num==2&&y-1>=0)
				y-=1;
			else if(num==3&&x+1<20)
				x+=1;
			mcnt++;
		}
			cnt++;
		
	}
	
	protected char getShape()
	{
		return shape;
	}
	
}

 

Game 클래스와 main문

class Game{
	
	void show(GameObject B, GameObject F)
	{
		int bx=B.getX();
		int by=B.getY();
		int Fx=F.getX();
		int Fy=F.getY();
		for(int i=0;i<10;i++)
		{
			for(int j=0;j<20;j++) {
				if(bx==j&&by==i)
					System.out.print(B.getShape());
				else if(Fx==j&&Fy==i)
					System.out.print(F.getShape());
				else
					System.out.print("-");
			}
			System.out.println();
		}
		
		
	}
	
    public static void main(String[] args) {
    	Game game = new Game();
    	Bear bear = new Bear();
    	Fish fish = new Fish();
    	
    	while(true)
    	{
    		game.show(bear, fish);
    		bear.move();
    		fish.move();
    		if(bear.collide(fish)) {
    			System.out.println("Bear Wins!!");
    			break;
    			}
    	}
    	
    }
	
}

 

전체 코드

import java.util.Scanner;

public abstract class GameObject{
	
	protected int distance; // 한번 이동 거리
	protected int x, y; // 현재 위치
	public GameObject(int startX, int startY, int distance)
	{
		this.x=startX;
		this.y=startY;
		this.distance=distance;
	}
	public int getX() { return x; }
	public int getY() { return y; }
	public boolean collide(GameObject p)
	{ //이 객체가 객체 p와 충돌했으면 true 리턴
		if(this.x==p.getX()&&this.y==p.getY())
			return true;
		else
			return false;
	}
	// 이동한 후의 새로운 위치로 x,y 변경
	protected abstract void move();
	
	// 객체의 모양을 나타내는 문자 리턴
	protected abstract char getShape();
	

	
}

class Bear extends GameObject{
	
	char shape;
	
	Bear()
	{
		super(0,0,1);
		shape='B';
	}
	
	protected void move() {
		System.out.print("왼쪽(a), 아래(s), 위(d), 오른쪽(F) >> ");
		Scanner scanner = new Scanner(System.in);
		char c = scanner.next().charAt(0);
		if(c=='a'&&x-1>=0)
			x-=1;
		else if(c=='s'&&y+1<10)
			y+=1;
		else if(c=='d'&&y-1>=0)
			y-=1;
		else if(c=='f'&&x+1<20)
			x+=1;
	}
	
	protected char getShape()
	{
		return shape;
	}
	
}

class Fish extends GameObject{
	
	char shape;
	int cnt;
	int mcnt;
	Fish()
	{
		super(5,5,1);
		shape='@';
		cnt=0;
	}
	
	protected void move() {
		
		if(cnt==5)
		{
			cnt=0;
			mcnt=0;
		}
		
		if(mcnt<2)
		{
			int num = (int)(Math.random()*4);
			System.out.println(num);
			if(num==0&&x-1>=0)
				x-=1;
			else if(num==1&&y+1<10)
				y+=1;
			else if(num==2&&y-1>=0)
				y-=1;
			else if(num==3&&x+1<20)
				x+=1;
			mcnt++;
		}
			cnt++;
		
	}
	
	protected char getShape()
	{
		return shape;
	}
	
}

class Game{
	
	void show(GameObject B, GameObject F)
	{
		int bx=B.getX();
		int by=B.getY();
		int Fx=F.getX();
		int Fy=F.getY();
		for(int i=0;i<10;i++)
		{
			for(int j=0;j<20;j++) {
				if(bx==j&&by==i)
					System.out.print(B.getShape());
				else if(Fx==j&&Fy==i)
					System.out.print(F.getShape());
				else
					System.out.print("-");
			}
			System.out.println();
		}
		
		
	}
	
    public static void main(String[] args) {
    	Game game = new Game();
    	Bear bear = new Bear();
    	Fish fish = new Fish();
    	
    	while(true)
    	{
    		game.show(bear, fish);
    		bear.move();
    		fish.move();
    		if(bear.collide(fish)) {
    			System.out.println("Bear Wins!!");
    			break;
    			}
    	}
    	
    }
	
}

 

실행 결과