创建游戏角色
2019-04-19 22:42
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一、题目分析
1.功能描述
几乎所有的RPG游戏（一种源自《龙与地下城》的游戏类型）在进入游戏时都会让用户自己来创建自己喜欢的角色。本次上机要求编写一个简化的创建游戏角色的程序。
2.游戏角色应有的属性
本题目要求的游戏角色应有以下属性：名字、性别、种族、职业、力量、敏捷、体力、智力、智慧、生命值和魔法值。
名字：不超过50个字符。
性别：可以选择男性和女性。
种族：一共可选五个种族，人类、精灵、兽人、矮人和元素。
职业：可选六种职业，狂战士、圣骑士、刺客、猎手、祭司和巫师。
其余属性均为整数。
本题目要求首先用户输入角色姓名，然后由用户选择角色性别，然后由用户选择种族，然后选择职业，然后自动分配力量、敏捷、体力、智力和智慧属性，并计算生命值和魔法值。
生命值=体力*20。
魔法值=（智力+智慧）*10。
3.职业限制
很多职业会限制某些种族选择，例如兽人不能就职圣骑士等等，种族和职业的限制表如下：
种族/职业 狂战士 圣骑士 刺客 猎手 祭司 巫师
人类 允许 允许 允许 允许 允许 允许
精灵 不允许 不允许 允许 允许 允许 允许
兽人 允许 不允许 不允许 允许 允许 不允许
矮人 允许 允许 不允许 不允许 允许 不允许
元素 不允许 不允许 不允许 不允许 允许 允许
所以在要求用户选择职业时，输出信息里面只能有用户所选择种族可以就职的职业。
4.初始属性
本题目要求力量、敏捷、体力、智力和智慧要求是随机值（利用随机数函数来取得随机数），但是五项属性的总和应该是100，并且应该和职业相关。例如狂战士的体力和力量就要比较高，而巫师需要较高的智力，而祭司则需要较高的智慧。各职业初始属性的大致比例应遵从下表：
职业/属性 力量 敏捷 体力 智力 智慧
狂战士 40 20 30 5 5
圣骑士 25 15 30 20 10
刺客 20 35 20 15 10
猎手 15 40 15 10 20
祭司 15 20 15 35 15
巫师 10 20 10 20 40
例如，前面示意图中的祭司的初始属性，大致满足该比例，但是应该是随机的。
然后利用属性值计算生命值和魔法值。
5.显示信息
最后向用户显示该角色的所有信息，然后询问用户是否满意，如用户不满意则重新创建，若用户满意则程序结束，并将用户创建角色的相关信息写入文件保存。
二、算法构造
设计思路：
1.创建一个存放具有游戏角色属性，比如名字、性别、种族、职业的类，取名为Character类
2.根据题目要求，用Scanner类分别输入自己所需要创建的名字、性别、种族和职业
3.由于不同的种族可供选择的职业也不同，利用switch-case，实现此功能
4.用Random类，对力量、敏捷、体力、智力来随机产生题目所要求范围的数，将int型转为string型进行文件保存
5.若对创建角色满意，则将创建的所有游戏角色保存在./Log.txt文件中；否则，重新创建
三、流程图和类图
四、调试
- 对数据输入的调试
- 创建角色满意时flag变为false结束循环
- 对产生随机数的测试
五、测试
-
对产生要求范围的随机数代码测试
分析：random.nextInt(max)表示生成[0,max]之间的随机数，然后对(max-min+1)取模，最后加上min。以strength为例，要求产生[38，42]随机数，首先生成0-42，然后对(42-38+1)取模得到0-38之间随机数，然后加上min=38，最后生成38-42的随机数。 -
将int型数据转为String型代码测试
分析：进行这一步的目的是，可以将strength 、quick、power、intelligence、wisdom、life、magic这些变量保存在文件中。 -
保存至文件代码测试
六、运行结果
- 当对所创建的角色满意时
保存在文件中
- 当对所创建的角色不满意时
结果保存在文件中
七、经验归纳
1.学会类用Random类来产生所要求范围的随机数。例如：random.nextInt(max)表示生成[0,max]之间的随机数，然后对(max-min+1)取模，最后加上min。以strength为例，要求产生[38，42]随机数，首先生成0-42，然后对(42-38+1)取模得到0-38之间随机数，然后加上min=38，最后生成38-42的随机数。
2.在文件中保存数据时出错
按照本意，应该将a的值40保存在文件中，可是运行后却变成了一个符号。最后将int型变量转为String型，再进行保存操作，可完成保存。
String str = String.valueOf(a);
八、源代码
package com.shangji;
public class Character {
private String name;
private int sex;
private int race;
private int career;
public Character() {
super();
}
public Character(String name, int sex, int race, int career) {
super();
this.name = name;
this.sex = sex;
this.race = race;
this.career = career;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getSex() {
return sex;
}
public void setSex(int sex) {
this.sex = sex;
}
public int getRace() {
return race;
}
public void setRace(int race) {
this.race = race;
}
public int getCareer() {
return career;
}
public void setCareer(int career) {
this.career = career;
}
}
package com.shangji;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Random;
import java.util.Scanner;
public class Main {
static int strength;// 力量
static int quick;// 敏捷
static int power;// 体力
static int intelligence;// 智力
static int wisdom;// 智慧
static int life;// 生命
static int magic;// 魔法
public static void Ber() {
Random r = new Random();
strength = r.nextInt(42) % (42 - 38 + 1) + 38;// 38-42
quick = r.nextInt(22) % (22 - 18 + 1) + 18;// 18-22
power = r.nextInt(32) % (32 - 28 + 1) + 28;// 28-32
intelligence = r.nextInt(7) % (7 - 3 + 1) + 3;// 3-7
wisdom = 100 - strength - quick - power - intelligence;
life = power * 20;
magic = (intelligence + wisdom) * 10;
}
public static void Kni() {
Random r = new Random();
strength = r.nextInt(27) % (27 - 23 + 1) + 23;// 23-27
quick = r.nextInt(17) % (17 - 13 + 1) + 13;// 13-17
power = r.nextInt(32) % (32 - 28 + 1) + 28;// 28-32
intelligence = r.nextInt(22) % (22 - 18 + 1) + 18;// 18-22
wisdom = 100 - strength - quick - power - intelligence;
life = power * 20;
magic = (intelligence + wisdom) * 10;
}
public static void Ass() {
Random r = new Random();
strength = r.nextInt(22) % (22 - 18 + 1) + 38;// 18-22
quick = r.nextInt(37) % (37 - 33 + 1) + 33;// 33-37
power = r.nextInt(22) % (22 - 18 + 1) + 18;// 18-22
intelligence = r.nextInt(17) % (17 - 13 + 1) + 13;// 13-17
wisdom = 100 - strength - quick - power - intelligence;
life = power * 20;
magic = (intelligence + wisdom) * 10;
}
public static void Hun() {
Random r = new Random();
strength = r.nextInt(17) % (17 - 13 + 1) + 13;// 13-17
quick = r.nextInt(42) % (42 - 38 + 1) + 38;// 38-42
power = r.nextInt(17) % (17 - 13 + 1) + 13;// 13-17
intelligence = r.nextInt(12) % (12 - 8 + 1) + 8;// 8-12
wisdom = 100 - strength - quick - power - intelligence;
life = power * 20;
magic = (intelligence + wisdom) * 10;
}
public static void Pri() {
Random r = new Random();
strength = r.ne
20000
xtInt(17) % (17 - 13 + 1) + 13;// 13-17
quick = r.nextInt(22) % (22 - 18 + 1) + 18;// 18-22
power = r.nextInt(17) % (17 - 13 + 1) + 13;// 13-17
intelligence = r.nextInt(37) % (37 - 33 + 1) + 33;// 33-37
wisdom = 100 - strength - quick - power - intelligence;
life = power * 20;
magic = (intelligence + wisdom) * 10;
}
public static void Wiz() {
Random r = new Random();
strength = r.nextInt(12) % (12 - 8 + 1) + 8;// 8-12
quick = r.nextInt(22) % (22 - 18 + 1) + 18;// 18-22
power = r.nextInt(12) % (12 - 8 + 1) + 8;// 8-12
intelligence = r.nextInt(22) % (22 - 18 + 1) + 18;// 18-22
wisdom = 100 - strength - quick - power - intelligence;
life = power * 20;
magic = (intelligence + wisdom) * 10;
}
public static void print() {
System.out.println("============================");
System.out.println(strength);
System.out.println("============================");
System.out.println(quick);
System.out.println("============================");
System.out.println(power);
System.out.println("============================");
System.out.println(intelligence);
System.out.println("============================");
System.out.println(wisdom);
System.out.println("============================");
System.out.println(life);
System.out.println("============================");
System.out.println(magic);
}
public static void main(String[] args) {
try {
File file = new File("./Log.txt");
FileWriter fw = new FileWriter(file, true);
BufferedWriter bw = new BufferedWriter(fw);
bw.flush();
Scanner sc = new Scanner(System.in);
Character character = new Character();
boolean flag = true;
while (flag) {
System.out.print("请输入您的游戏角色姓名：");
character.setName(sc.next());
bw.write(character.getName());
bw.write("\n");
System.out.print("请选择您的游戏角色性别（0男性，1女性）：");
character.setSex(sc.nextInt());
System.out.print("请选择您的游戏角色种族（0人类，1精灵，2兽人，3矮人，4元素）：");
character.setRace(sc.nextInt());
if (character.getRace() == 0) {
System.out.print("请选择您的职业（0狂斗士，1圣骑士，2刺客，3猎手，4祭司，5巫师）：");
} else if (character.getRace() == 1) {
System.out.print("请选择您的职业（0刺客，1猎手，2祭司，3巫师）：");
} else if (character.getRace() == 2) {
System.out.print("请选择您的职业（0狂斗士，1猎手，2祭司）：");
} else if (character.getRace() == 3) {
System.out.print("请选择您的职业（0狂斗士，1圣骑士，2祭司）：");
} else if (character.getRace() == 4) {
System.out.print("请选择您的职业（0祭司，1巫师）：");
}
character.setCareer(sc.nextInt());
System.out.println("============================");
System.out.println(character.getName());
System.out.println("============================");
if (character.getSex() == 0) {
System.out.println("男性");
bw.write("男性\n");
} else {
System.out.println("女性");
bw.write("女性\n");
}
System.out.println("============================");
switch (character.getRace()) {
case 0:// 人类
System.out.println("人类");
bw.write("人类\n");
if (character.getCareer() == 0) {// 狂斗士
Ber();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 1) {// 圣骑士
Kni();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 2) {// 刺客
Ass();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 3) {// 猎手
Hun();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 4) {// 祭司
Pri();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 5) {// 巫师
Wiz();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
}
break;
case 1:// 精灵
System.out.println("精灵");
bw.write("精灵\n");
if (character.getCareer() == 0) {// 刺客
Ass();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 1) {// 猎手
Hun();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 2) {// 祭司
Pri();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 3) {// 巫师
Wiz();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
}
break;
case 2:// 兽人
System.out.println("兽人");
bw.write("兽人\n");
if (character.getCareer() == 0) {// 狂斗士
Ber();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 1) {// 猎手
Hun();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 2) {// 祭司
Pri();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
}
break;
case 3:// 矮人
System.out.println("矮人");
bw.write("矮人\n");
if (character.getCareer() == 0) {// 狂战士
Ber();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 1) {// 圣骑士
Kni();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 2) {// 祭司
Pri();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
}
break;
case 4:// 元素
System.out.println("元素");
bw.write("元素\n");
if (character.getCareer() == 0) {// 祭司
Pri();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
} else if (character.getCareer() == 1) {// 巫师
Wiz();
print();
String str = String.valueOf(strength);
String qui = String.valueOf(quick);
String pow = String.valueOf(power);
String inte = String.valueOf(intelligence);
String wis = String.valueOf(wisdom);
String lif = String.valueOf(life);
String mag = String.valueOf(magic);
bw.write("strength:" + str + "\n" + "quick:" + qui + "\n" + "power:" + pow + "\n"
+ "intelligence:" + inte + "\n" + "wisdom:" + wis + "\n" + "life:" + lif + "\n"
+ "magic:" + mag + "\n");
}
break;
}
System.out.print("您对选择角色是否满意（0满意，1不满意）：");
if (sc.nextInt() == 0) {
flag = false;
System.out.println("创建角色成功，结果已保存至文件");
bw.write("\n对创建的角色满意\n");
} else {
System.out.println("角色重新创建");
bw.flush();
}
}
bw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
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