我几乎已经完成了这个Java游戏项目。我只需要在主角的包里增加一个被击败的敌人的钱。如果它们比主角的武器和盔甲更好，我还必须添加武器和盔甲。如何将敌人的钱加到主角的钱上？在我看来，main_ch.getBag（）。getMoney（）= main_ch.getBag（）。getMoney（）+敌人[selected] .getBag（）。getMoney（）;应该可以，但是不能。
这是我的主要课程：
import java.util.Scanner;
import Character.Character;
import java.util.Random;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("> Welcome to The Game Project <");
System.out.println("\n >> Input Main Character Name: ");
String main_name = scanner.nextLine();
System.out.println(">> Input Main Character Power: ");
int main_power=scanner.nextInt();
System.out.println(">> Input Main Character Hp: ");
int main_hp=scanner.nextInt();
System.out.println("----------------------------------------------------");
Character main_ch=new Character (main_hp,main_power,main_name);
show_status(main_ch);
check_bag(main_ch);
Character enemies[]=new Character [10];
enemies[0]= new Character("Werewolf");
enemies[1]= new Character("Vampire");
enemies[2]= new Character("Alien");
enemies[3]= new Character("Witch");
enemies[4]= new Character("Ghost");
enemies[5]= new Character("Skeleton");
enemies[6]= new Character("Zombie");
enemies[7]= new Character("Demon");
enemies[8]= new Character("Mummy");
enemies[9]= new Character("Dragon");
boolean check = false;
int dead_count=0;
while(true) {
Random rnd=new Random();
int selected = rnd.nextInt(enemies.length); //random enemy selected
System.out.println();
System.out.println(">>>>> An enemy has appeared! <<<<<");
while(enemies[selected].getHp()>0) {
System.out.println();
System.out.println(">>>>> "+enemies[selected].getName()+" wants to fight!");
show_status(enemies[selected]);
check_bag(enemies[selected]);
System.out.println();
System.out.println(">> What do you want to do?");
System.out.println("\t1. Fight!");
System.out.println("\t2. Use skill.");
System.out.println("\t3. Check your stats.");
int input = scanner.nextInt();
if(input==1) {
int damageToEnemy = main_ch.hit_point();
int damageTaken = enemies[selected].hit_point();
enemies[selected].hp -= damageToEnemy;
main_ch.hp -= damageTaken;
if(enemies[selected].hp <= 0) {
enemies[selected].hp=0;
dead_count=dead_count+1;
main_ch.level=main_ch.level+1; //gain one level after enemy defeated
System.out.println(">> You defeated the enemy and gained a level!");
// The below code also doesn't work.
int pickUpMoney = main_ch.getBag().getMoney();
pickUpMoney=main_ch.getBag().getMoney() + enemies[selected].getBag().getMoney();
System.out.println();
System.out.println("You found "+enemies[selected].getBag().getMoney()+" dollars. You now have "+main_ch.getBag().getMoney()+" dollars in your bag."); //take defeated enemy's money
for(int i = 0; i<4; i++) {
if(enemies[selected].getWeapon().getPower() > main_ch.getWeapon().getPower()) {
main_ch.getBag().getWeaponArray()[i]=enemies[selected].getBag().getWeaponArray()[i];
System.out.println("You found better weapons! They have been added to your bag.");
}
}
for(int i = 0; i<4; i++) {
if(enemies[selected].getArmor().getDefense()>main_ch.getArmor().getDefense()) {
main_ch.getBag().getArmorArray()[i]=enemies[selected].getBag().getArmorArray()[i];
System.out.println("You found better armor! They have been added to your bag.");
}
}
break;
}
System.out.println("\n>> You caused "+ damageToEnemy +" damage to the enemy! Their hp is now "+ enemies[selected].hp+".");
System.out.println(">> You received "+ damageTaken +" damage from the enemy! Your hp is now "+main_ch.hp+".");
if(main_ch.hp <=0) {
System.out.println();
System.out.println(">> Oh no! You died! Better luck next time. Thanks for playing!");
System.out.println();
break;
}
}
else if(input==2) {
if(main_ch.getSkill()>0 && main_ch.getMp()>0) {
main_ch.useSkill();
System.out.println("\t>> You used a skill. Your hit point increased to "+main_ch.hit_point()+". Your MP decreased to "+main_ch.getMp()+".");
}
else {
if(main_ch.getSkill()<=0) {
System.out.println("You have no skill points left.");
}
else{
System.out.println("\t>> Your MP is too low to use skill.");
}
}
}
else if(input==3) {
System.out.println();
show_status(main_ch);
check_bag(main_ch);
}
else {
System.out.println(">> You have entered an invalid key.");
}
}
if(dead_count==enemies.length) {
check=true;
}
if(check) {
System.out.println();
System.out.println(">>>>>>>>>> You won! Congratulations, you defeated all of your enemies! <<<<<<<<<");
break;
}
if(main_ch.hp <=0) {
System.out.println();
System.out.println(">> Oh no! You died! Better luck next time. Thanks for playing!");
System.out.println();
break;
}
}
}
public static void show_status(Character character) {
System.out.println("----------------- Character Status -----------------");
System.out.println("\tCharacter Name:\t\t"+character.getName());
System.out.println("\tCharacter HP:\t\t"+character.getHp());
System.out.println("\tCharacter Power:\t"+character.getPower());
System.out.println("\tCharacter Defense:\t"+character.getDefense());
System.out.println("\tCharacter MP:\t\t"+character.getMp());
System.out.println("\tCharacter Level:\t"+character.getLevel());
System.out.println("\tCharacter Hit Point:\t"+character.hit_point());
System.out.println("\tCharacter Skill:\t"+character.getSkill());
System.out.println("\tWeapon Name:\t\t"+character.getWeapon().getName());
System.out.println("\tWeapon Power:\t\t"+character.getWeapon().getPower());
System.out.println("\tArmor Name:\t\t"+character.getArmor().getName());
System.out.println("\tArmor Defense:\t\t"+character.getArmor().getDefense());
System.out.println("----------------------------------------------------");
}
public static void check_bag(Character character) {
System.out.println("-------------------- Bag Status --------------------");
System.out.println("\tMoney:\t\t\t$"+ character.getBag().getMoney());
for(int i = 0; i<4; i++) {
System.out.println("\tWeapon Name/Power:\t"+ character.getBag().getWeaponArray()[i].getName()+" // "+character.getBag().getWeaponArray()[i].getPower());
}
for(int i = 0; i<4; i++) {
System.out.println("\tArmor Name/Defense:\t"+ character.getBag().getArmorArray()[i].getName()+" // "+character.getBag().getArmorArray()[i].getDefense());
}
System.out.println("----------------------------------------------------");
}
}
这是我的角色班级：
package Character;
import java.util.Random;
import Equipment.*;
public class Character {
private Armor armor = new Armor();
private Weapon weapon = new Weapon();
private Bag bag = new Bag();
public static String server_name = "CS172";
public int hp, power, defense, mp, level, skill;
private String name;
Random rnd=new Random();
public Character(String name) {
this.name=name;
Random rnd=new Random();
this.hp=rnd.nextInt(500)+1;
this.power=rnd.nextInt(100)+1;
this.defense=rnd.nextInt(100)+1;
this.mp=rnd.nextInt(50)+1;
this.level=1;
this.skill=5;
}
public Character(int hp, int power, String name) {
this.hp=hp;
this.power=power;
this.name=name;
this.defense=rnd.nextInt(100)+1;
this.mp=rnd.nextInt(50)+1;
this.level=1;
this.skill=5;
}
public int getHp() {
return hp;
}
public void setHp(int hp) {
this.hp = hp;
}
public int getPower() {
return power;
}
public void setPower(int power) {
this.power = power;
}
public int getDefense() {
return defense;
}
public void setDefense(int defense) {
this.defense = defense;
}
public int getMp() {
return mp;
}
public void setMp(int mp) {
this.mp = mp;
}
public int getLevel() {
return level;
}
public void setLevel(int level) {
this.level = level;
}
public String getName() {
return name;
}
public int damage(int enemy_power) {
int damage = enemy_power - this.defense;
if(damage<0){ //avoid healing by damage
damage=0;
}
this.hp=this.hp - damage;
if(this.hp<0) { //avoid negative hp
this.hp = 0;
}
return damage;
}
public Armor getArmor() {
return armor;
}
public void setArmor(Armor armor) {
this.armor = armor;
}
public Weapon getWeapon() {
return weapon;
}
public void setWeapon(Weapon weapon) {
this.weapon = weapon;
}
public int hit_point() {
int total_power = this.power + this.weapon.getPower();
return total_power;
}
//------------------------------------------------------why isn't this increasing the hit point at all?
public int useSkill() {
this.mp=this.mp-1;
this.skill--;
return this.hit_point()+30;
}
public int getSkill() {
return skill;
}
public Bag getBag() {
return bag;
}
public void setBag(Bag bag) {
this.bag = bag;
}
public class Bag{
Weapon weaponArray[] = new Weapon[4];
Armor armorArray[] = new Armor[4];
int money = 150;
public Bag(){
for(int i=0; i<weaponArray.length; i++) {
weaponArray[i] = new Weapon();
armorArray[i] = new Armor();
}
}
public Weapon[] getWeaponArray() {
return weaponArray;
}
public void setWeaponArray(int yourWeaponIndex, Weapon enemyWeapon) {
this.weaponArray[yourWeaponIndex] = enemyWeapon;
}
public Armor[] getArmorArray() {
return armorArray;
}
public void setArmorArray(Armor[] armorArray) {
this.armorArray = armorArray;
}
public int getMoney() {
return money;
}
public void setMoney(int money) {
this.money = money;
}
}
}
答案 0 :(得分：1)
您正在调用访问器方法，就像它也会设置一样，但没有设置。尝试这样的事情：
from IPython.display import display, Math
from sympy.abc import *
from sympy import *
def imaginary_square_root(x, y):
return(sqrt((x + sqrt(x**2 + y**2)) / (2)) + I*((y*sqrt(2)) / (2*sqrt(x + sqrt(x**2 + y**2))))) # calculates the square root of a complex number
def find_imaginary_square_root(polynomial): # 'polynomial' used because this function is meant to change expressions including variables such as 'x'
polynomial = str(polynomial).replace('.0 ', ' ')
exec(f'polynomial = {polynomial}')
list_of_square_roots = [] # list of string instances of square roots and their contents
list_of_square_root_indexes = [] # list of indexes at which the square roots can be found in the string
polynomial_string = str(polynomial)
temp_polynomial_string = polynomial_string # string used and chopped up, hence the prefix 'temp_...'
current_count = 0 # counter variable used for two seperate jobs
while 'sqrt' in temp_polynomial_string: # gets indexes of every instance of 'sqrt'
list_of_square_root_indexes.append(temp_polynomial_string.index('sqrt') + current_count)
temp_polynomial_string = temp_polynomial_string[list_of_square_root_indexes[-1] + 4:]
current_count += list_of_square_root_indexes[-1] + 4
for square_root_location in list_of_square_root_indexes:
current_count = 1 # second job for 'current_count'
for index, char in enumerate(polynomial_string[square_root_location + 5:]):
if char == '(':
current_count += 1
elif char == ')':
current_count -= 1
if not current_count: # when current_count == 0, we know that the end of the sqrt contents have been reached
list_of_square_roots.append(polynomial_string[square_root_location:square_root_location + index + 6]) # adds the square root with contents to a list
break
for individual_square_root in list_of_square_roots:
if individual_square_root in str(polynomial):
evaluate = individual_square_root[5:-1]
x = re(evaluate)
y = im(evaluate)
polynomial = polynomial.replace(eval(individual_square_root), imaginary_square_root(x, y)) # replace function used here is Sympy's replace function for polynomials
return polynomial
poly = str(-sqrt(-2.0 + 2*sqrt(3)*I))
display(Math(latex(find_imaginary_square_root(poly))))