我一直在写这个游戏来输入具有随机攻击几率的人类和骷髅的数量。如果您反复运行程序时输入的金额相同,则会生成相同的金额。为什么每次while循环重新启动时hitChance/Random攻击量都不会改变?当我在while循环中打印attackChance(randGen)时,它会改变。为什么randGen不会改变战斗赢家的输出?为什么mt19937发生器每次在while循环中使用时都会产生相同的结果
#include <iostream>
#include <string>
#include <random>
#include <ctime>
using namespace std;
int getNumSkeletons();
int getNumHumans();
void finishedBattleStats(int numHumans, int startHumans, int numSkeletons, int startSkeletons);
void simulatedBattle(int &numSkeletons, int &numHumans, int &startHumans, int &startSkeletons);
int main() {
int startHumans;
int startSkeletons;
int numHumans;
int numSkeletons;
cout << "------------------------------------\nSkeletons V Humans\n\n";
//Gets Number of Humans
numHumans = getNumHumans();
startHumans = numHumans;
//Gets Number of Skeletons
numSkeletons = getNumHumans();
startSkeletons = numSkeletons;
//Simulates Battle
simulatedBattle(numSkeletons, numHumans, startHumans, startSkeletons);
//End Battle Stats
finishedBattleStats(numHumans, startHumans, numSkeletons, startSkeletons);
cin.get();
return 0;
}
int getNumHumans() {
int numHumans;
cout << "Enter number of Humans: \n";
cin >> numHumans;
return numHumans;
}
int getNumSkeletons() {
int numSkeletons;
cout << "Enter number of Skeletons: \n";
cin >> numSkeletons;
return numSkeletons;
}
void simulatedBattle(int &numSkeletons, int &numHumans, int &startHumans, int &startSkeletons) {
static mt19937 randGen(time(NULL));
uniform_real_distribution<float> attackChance(0.0f, 1.0f);
//HumanProperties
float humanDamage = 30.0f;
float humanHitChance = 0.6f;
float humanCritChance = 0.2f;
float humanHealth = 50.0f;
float startHumanHealth = humanHealth;
float currentHuman = startHumanHealth;
//Skeleton Properties
float skeletonDamage = 20.0f;
float skeletonHitChance = 0.7f;
float skeletonCritChance = 0.2f;
float skeletonHealth = 40.0f;
float startSkeletonHealth = skeletonHealth;
float currentSkeleton = startSkeletonHealth;
char turn = 'H';
float hitChance;
while (numSkeletons > 0 && numHumans > 0) {
hitChance = attackChance(randGen);
if (turn == 'H') {
if (hitChance > humanHitChance) {
currentSkeleton -= humanDamage;
turn = 'S';
if (currentSkeleton < 0) {
numHumans--;
currentSkeleton = startSkeletonHealth;
turn = 'S';
}
}
}
else {
if (hitChance > skeletonHitChance) {
currentHuman -= skeletonDamage;
turn = 'H';
}
if (currentHuman < 0) {
numSkeletons--;
currentHuman = startHumanHealth;
turn = 'H';
}
}
}
}
void finishedBattleStats(int numHumans, int startHumans, int numSkeletons, int startSkeletons) {
if (numHumans == 0) {
cout << "Skeletons won! \n\n";
cout << "Skeletons left: " << numSkeletons << endl;
cout << "Skeleton Casualties: " << startSkeletons - numSkeletons << endl;
cout << "All " << startHumans << " humans are dead! \n\n";
cout << "Game Over!";
cin.get();
}
else {
cout << "Humans Won! \n\n";
cout << "Humans left: " << numHumans << endl;
cout << "Human Casualties: " << startHumans - numHumans << endl;
cout << "All " << startSkeletons << " skeletons are dead! \n\n";
cout << "Game Over!";
cin.get();
}
}
无法获得'静态mt19937 randGen(时间(NULL));'编译。没有超载需要time_t。我可以推荐给它一个[std :: random_device](http://en.cppreference.com/w/cpp/numeric/random/random_device)来代替它吗? – user4581301
你是什么意思?这是否意味着添加** rand_device randDevice(); **或只是random_device本身。 –
你正在使用哪个编译器工具链?如果GCC,阅读此:http://stackoverflow.com/questions/18880654/why-do-i-get-same-sequence-for-everyrun-with-stdrandom-device-with-mingw-gcc4 – user4581301