2. // 角色
    3. public class Role {
    4. //    体力、攻击、防御
    5.     private int vit;
    6.     private int ack;
    7.     private int def;
    9. //    状态显示
    10.     public void StateDisplay(){
    11.         System.out.println("角色当前状态：");
    12.         System.out.println("体力："+this.vit);
    13.         System.out.println("攻击："+this.ack);
    14.         System.out.println("防御："+this.def);
    16.     }
    18. //    获得初始状态,通常来自本机磁盘或远程数据库
    19.     public void GetInitState(){
    20.         this.vit=100;
    21.         this.ack=100;
    22.         this.def=100;   
    23.     }
    25. //    战斗
    26.     public void Fight(){
    27.         this.vit=0;
    28.         this.ack=0;
    29.         this.def=0; 
    30.     }
    32. //    保存角色状态
    33.     public RoleStateMemento SaveState(){
    34.         return new RoleStateMemento(this.vit, this.ack, this.def);
    35.     }
    37. //    恢复角色状态
    38.     public void RevoceryState(RoleStateMemento memento){
    39.         this.vit = memento.getVit();
    40.         this.ack = memento.getAtk();
    41.         this.def = memento.getDef();
    42.     }
    44.     public int getVit() {
    45.         return vit;
    46.     }
    48.     public void setVit(int vit) {
    49.         this.vit = vit;
    50.     }
    52.     public int getAck() {
    53.         return ack;
    54.     }
    56.     public void setAck(int ack) {
    57.         this.ack = ack;
    58.     }
    60.     public int getDef() {
    61.         return def;
    62.     }
    64.     public void setDef(int def) {
    65.         this.def = def;
    66.     }
    68. }
    69. // 角色状态管理者类
    70. public class RoleStateCaretaker {
    72.     public RoleStateMemento roleStateMemento;
    73. }
    74. // 角色状态存储类
    75. public class RoleStateMemento {
    77.     private int vit;
    78.     private int atk;
    79.     private int def;
    81.     public RoleStateMemento(int vit, int atk, int def) {
    82.         super();
    83.         this.vit = vit;
    84.         this.atk = atk;
    85.         this.def = def;
    86.     }
    88.     public int getVit() {
    89.         return vit;
    90.     }
    91.     public void setVit(int vit) {
    92.         this.vit = vit;
    93.     }
    94.     public int getAtk() {
    95.         return atk;
    96.     }
    97.     public void setAtk(int atk) {
    98.         this.atk = atk;
    99.     }
    100.     public int getDef() {
    101.         return def;
    102.     }
    103.     public void setDef(int def) {
    104.         this.def = def;
    105.     }
    106. }
    107. // 角色状态管理者类
    108. public class RoleStateCaretaker {
    109.     // 角色状态
    110.     public RoleStateMemento roleStateMemento;
    111. }
    112. // 角色状态存储类
    113. public class RoleStateMemento {
    115.     private int vit;
    116.     private int atk;
    117.     private int def;
    119.     public RoleStateMemento(int vit, int atk, int def) {
    120.         super();
    121.         this.vit = vit;
    122.         this.atk = atk;
    123.         this.def = def;
    124.     }
    126.     public int getVit() {
    127.         return vit;
    128.     }
    129.     public void setVit(int vit) {
    130.         this.vit = vit;
    131.     }
    132.     public int getAtk() {
    133.         return atk;
    134.     }
    135.     public void setAtk(int atk) {
    136.         this.atk = atk;
    137.     }
    138.     public int getDef() {
    139.         return def;
    140.     }
    141.     public void setDef(int def) {
    142.         this.def = def;
    143.     }
    144. }
    145. public class Test {
    146.     public static void main(String[] args) {
    147. //        大战Boss前
    148.         Role role = new Role();
    149.         role.GetInitState();
    150.         role.StateDisplay();
    152. //        存档
    153.         RoleStateCaretaker stateAdmin = new RoleStateCaretaker();
    154.         stateAdmin.roleStateMemento=role.SaveState();
    156. //        大战boss，没了
    157.         role.Fight();
    158.         role.StateDisplay();
    160. //      回档
    161.         role.RevoceryState(stateAdmin.roleStateMemento);
    162.         role.StateDisplay();
    164.     }
    165. }