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Java(封装、继承、多态、接口)游戏中的角色练习题

程序员文章站 2024-03-04 15:19:05
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游戏中的角色练习题

题目

创建Role接口,包含两个方法:
1)int attack(); 表示攻击,返回值表示对敌人的伤害
2)void practise(); 表示练习。练习之后对敌人的伤害会增加

创建NamedRole类,该类为一个抽象类,实现了Role 接口,并有两个属性:
1)name:角色的名字
2)age:角色的年龄

增加MagicStick接口。该接口表示法师使用的法杖。接口中包含一个方法:
1)int fire()

为MagicStick类增加两个实现类,分别为GreenStick和BlackStick。其中,对于这两个类的fire方法:
1)GreenStick 平时返回1,夏天(6~8月)使用时返回2
2)BlackStic奇数月返回1,偶数月返回2

修改Magicer类
1)为法师类增加MagicStick类的属性stick,表示法师使用的法杖
2)让其继承自NamedRole类,并实现attack和practise 功能
3)int attack()返回值为法师的魔法等级(level)*每一级的固定伤害(5)
4)void practise()方法:

当法师的stick属性为null时,调用 practise则level++
当法师的stick不为null时,调用practise 方法时,法师的等级level满足:level = level + 1 + stick.fire();即:法师的等级增加为1+stick 属性的fire方法的返回值
增加Weapon接口,表示战士使用的武器。Weapon接口中定义了两个方法:
1)void setSoldier(Soldier s); 该方法表示设置武器的使用者
2)int fire(); 该方法的返回值表示战士使用该武器时,对敌人的伤害值

为 Weapon 增加两个实现了,Bolo,表示大刀,Pike,表示长矛
1)当 soldier 的年龄大于等于 18 岁时,fire 方法返回 100
2)当 soldier 年龄小于 18 岁时,fire 方法返回 50

Pike:Pike 类有一个属性:name,表示长矛的名字
1)当长矛的名字和战士的名字一致时,fire 方法返回 1000
2)当长矛的名字和战士的名字不一致时,fire 方法返回 25

修改 Soldier 类
1)为 Soldier 类增加一个 Weapon 属性,表示战士的武器
2)让其继承自 NamedRole 类,并实现 attack 和 practise 功能。其中

Soldier 的 attack() 返回值为战士的 hurt 值与武器的 fire()返回值的 和,即:总攻击输出 = 战士的徒手伤害值 + 武器的伤害值
practise()方法:每调用一次则战士的 hurt 值+10
编写相应的测试代码
————————————————
版权声明:本文为CSDN博主「Ziph」的原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接及本声明。
原文链接:https://blog.csdn.net/weixin_44170221/article/details/104574963

思维导图

Java(封装、继承、多态、接口)游戏中的角色练习题

相关代码

接口,抽象方法

package com.company1.interfacep;
/*
* 表示法师使用的法杖
* */
public interface MagicStick {
    int fire();//
}
package com.company1.interfacep;

import com.company1.extendsl.Soldier;

public interface Weapon {
    void setSoldier(Soldier s); //该方法表示设置武器的使用者
    int fire(); //该方法的返回值表示战士使用该武器时,对敌人的伤害值
}

package com.company1.interfacep;

public interface Role {
    int attack();// 表示攻击,返回值表示对敌人的伤害
    void practise();//表示练习。练习之后对敌人的伤害会增加
}

package com.company1.impl;

import com.company1.interfacep.Role;

public abstract class NamedRole implements Role {
   private String name;//角色的名字
   private int age;//角色的年龄

    public NamedRole(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public NamedRole(int age) {
        this.age = age;
    }
    public NamedRole(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "NamedRole{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }

    public NamedRole() {
    }

}

接口实现

package com.company1.impl;

import com.company1.interfacep.MagicStick;

import java.util.Date;

public class BlackStic implements MagicStick {
    Date d = new Date();
    @Override
    public int fire() {
        if (d.getMonth() % 2 == 0) {
            return 2;
        } else {
            return 1;
        }
    }
}

package com.company1.impl;

import com.company1.extendsl.Soldier;
import com.company1.interfacep.Weapon;

public class Bolo implements Weapon {
  private int age;
    @Override
    public void setSoldier(Soldier s) {
         age = s.getAge();
    }

    @Override
    public int fire() {
        if(age>=18){
            return 100;
        }else{
            return 50;
        }
    }
}

package com.company1.impl;

import com.company1.interfacep.MagicStick;

import java.util.Date;

public class GreenStick implements MagicStick {
    Date d=new Date();
    @Override
    public int fire() {
        if(d.getMonth()>=6&&d.getMonth()<=8){
            return 2;
        }else{
            return 1;
        }
    }
}

package com.company1.impl;

import com.company1.extendsl.Soldier;
import com.company1.interfacep.Weapon;

public class Pike implements Weapon {
    private Soldier s;
    private String name;

    public Pike(String name) {
        this.name = name;
    }

    public int fire() {
        s = new Soldier(name);
        if (s.getName().equals(name)) {
            return 1000;
        } else {
            return 25;
        }
    }

    public void setSoldier(Soldier s) {
        this.s = s;
    }

}

抽象类实现

package com.company1.extendsl;

import com.company1.impl.NamedRole;
import com.company1.interfacep.MagicStick;

public class Magicer extends NamedRole {
    private int level=1;//法师的魔法等级
    private MagicStick stick;//表示法师使用的法杖

    public int getLevel() {
        return level;
    }

    public void setLevel(int level) {
        if (level < 1 || level > 10) {
            System.out.println("level error!");
            return;
        }
        this.level = level;
    }

    public MagicStick getStick() {
        return stick;
    }

    public void setStick(MagicStick stick) {
        this.stick = stick;
    }

    @Override
    public String toString() {
        return "Magicer{" +
                "level=" + level +
                ", stick=" + stick +
                '}';
    }

    public Magicer(String name, int age) {
        super(name, age);
    }

    public Magicer(String name, int age, int level) {
        super(name, age);
        this.level = level;

    }

    public Magicer(int level, MagicStick stick) {
        this.level = level;
        this.stick = stick;
    }

    public Magicer() {
    }

    @Override
    public int attack() {
        return level*5;
    }

    @Override
    public void practise() {
        if(stick==null){
            level++;
        }else{
            level = level + 1 + stick.fire();//法师的等级增加为1+stick 属性的fire方法的返回值
        }
    }

}

package com.company1.extendsl;

import com.company1.impl.NamedRole;
import com.company1.interfacep.Weapon;

public class Soldier extends NamedRole {
    private int hurt;
    private Weapon weapon;

    public Soldier(String name) {
        super(name);
    }

    public Soldier(int age) {
        super(age);
    }

    public Soldier(String name, int age, int hurt) {
        super(name, age);
        this.hurt = hurt;
    }

    public int getHurt() {
        return hurt;
    }

    public void setHurt(int hurt) {
        this.hurt = hurt;
    }

    public Weapon getWeapon() {
        return weapon;
    }

    public void setWeapon(Weapon weapon) {
        this.weapon = weapon;
    }
    @Override
    public int attack() {
        int result = hurt;
        if (weapon != null) {
            result += weapon.fire();
        }
        return result;
    }

    @Override
    public void practise() {
        hurt += 10;
    }
}

测试类

package com.company1;

import com.company1.extendsl.Magicer;
import com.company1.extendsl.Soldier;
import com.company1.impl.BlackStic;
import com.company1.impl.Bolo;
import com.company1.impl.GreenStick;
import com.company1.impl.Pike;
import com.company1.interfacep.MagicStick;
import com.company1.interfacep.Weapon;

public class Test {
    public static void main(String[] args) {
        MagicStick magicStick1 = new GreenStick();
        MagicStick magicStick2 = new BlackStic();
        Magicer magicer1 = new Magicer( "基拉法师",21, 61);
        Magicer magicer2 = new Magicer("光鳞龙",15, 5);
        magicer1.setStick(magicStick1);
        magicer2.setStick(magicStick2);
        System.out.println(magicer1.getName() + "\t" + "年龄:" + magicer1.getAge() + "\t" + "初始攻击伤害:" + magicer1.attack());
        System.out.println(magicer2.getName() + "\t" + "年龄:" + magicer2.getAge() + "\t" + "初始攻击伤害:" + magicer2.attack());
        magicer1.practise();
        magicer2.practise();
        System.out.println(magicer1.getName() + "\t" + "年龄:" + magicer1.getAge() + "\t" + "修炼后的攻击伤害:" + magicer1.attack());
        System.out.println(magicer2.getName() + "\t" + "年龄:" + magicer2.getAge() + "\t" + "修炼后的攻击伤害:" + magicer2.attack());
        System.out.println("-----------------------------------------------------------------");
        Soldier soldier1 = new Soldier("Ziph", 21, 200);
        Soldier soldier2 = new Soldier("狂战士", 30, 150);
        Weapon weapon1 = new Bolo();
        Weapon weapon2 = new Pike("Ziph");
        soldier1.setWeapon(weapon1);
        soldier1.setWeapon(weapon2);
        soldier2.setWeapon(weapon1);
        soldier2.setWeapon(weapon2);
        System.out.println(soldier1.getName() + "\t" + "年龄:" + soldier1.getAge() + "\t" + "佩戴了大刀和矛之后的攻击伤害:" + soldier1.attack());
        System.out.println(soldier2.getName() + "\t" + "年龄:" + soldier2.getAge() + "\t" + "佩戴了大刀和矛之后的攻击伤害:" + soldier2.attack());
        soldier1.practise();
        soldier2.practise();
        System.out.println(soldier1.getName() + "\t" + "年龄:" + soldier1.getAge() + "\t" + "佩戴了大刀和矛,加以修炼后的攻击伤害:" + soldier1.attack());
        System.out.println(soldier2.getName() + "\t" + "年龄:" + soldier2.getAge() + "\t" + "佩戴了大刀和矛,加以修炼后的攻击伤害:" + soldier2.attack());

    }
}

代码实现

Java(封装、继承、多态、接口)游戏中的角色练习题