Battle Revise

struct monster{
    int rep_count;
    int bi_count;
    int hum_count;
    int hy_count;
    vector<string> mon_count;
}mob;

mob.rep_count = 50;
mob.bi_count = 95;
mob.hum_count = 50; //Sets up the number of monsters you have to kill to win
mob.hy_count = 5;
for(int i=mob.bi_count;i>0;i--){
    mob.mon_count.push_back("bird");
}
for(int i=mob.rep_count;i>0;i--){
    mob.mon_count.push_back("reptile");
    mob.mon_count.push_back("humanoid");
}
for(int i=mob.hy_count;i>0;i--){
    mob.mon_count.push_back("hybrid");
}

int freq = rand() % 200 + 1;
string f_mon = mob.mon_count[freq];
if(f_mon=="bird"){
    mob.bird();
    mob.mon_count.erase(mob.mon_count.begin()+freq);
}
else if(f_mon=="reptile"){
    mob.reptile();
    mob.mon_count.erase(mob.mon_count.begin()+freq);
}
else if(f_mon=="humanoid"){
    mob.humanoid();
    mob.mon_count.erase(mob.mon_count.begin()+freq);
}
else{
    mob.hybrid();
    mob.mon_count.erase(mob.mon_count.begin()+freq);
}