Forum: Funktioner - Varför?!

(define (spel)
   (display "hej! gissa vilket tal jag tänker på.")
   (kolla-gissning (ta-in-gissning)))
 
(define (kolla-gissning gissning)
   (let ((svar (slump-mellan 1 100)))
      (cond ((= gissning svar) (display "Grattis! du gissade rätt!"))
            ((> gissning svar) (display "Tyvärr, du gissade för högt."))
            ((< gissning svar) (display "Tyvärr, du gissade för lågt.")))))
 
(define (ta-in-gissning)
   (let ((gissning (read)))
      (if (number? gissning)
          gissning
          (ta-in-gissning))))
 
(define (slump-mellan min max)
   (+ (random (- max min)) min))

#include <cstdlib>
#include <iostream>
 
using namespace std;
 
float areafunktion(float sida1, float sida2);
float areafunktion(float sida1, float sida2)
{
   cout << "Skriv in rektangelns 2 sidor, om arean blir över  50 så avslutas programmet" << endl;
   cin >> sida1 >> sida2;
   float area = sida1 * sida2;
   return area;
}
 
int main()
{
    while (areafunktion<50)
   {
       areafunktion(float sida1, float sida2);
       cout << areafunktion;
   }
 
   return 0;
}

#include <cstdlib>
#include <iostream>
 
using namespace std;
 
bool level1(bool lvl1, int i);
bool level1(bool lvl1, int i)
{
     lvl1==true;
     while (lvl1==true)
     {
           cout << "Level1, i = " << i << endl;
           i++;
           if (i>100)
          {
                lvl1==false;
                break;
           }
     }
}
 
int main()
{
    bool loop;
    loop=true;
    while(loop==true);
    {
         level1(bool lvl1, int i);
     }
 
     cin.get()
     cin.ignore()
     return 0;
}

#include <cstdlib>
#include <iostream>
 
using namespace std;
int berakning(int tal1, int tal2);
int berakning(int tal1, int tal2)
{
     int summa;
     summa = tal1 + tal2;
     return summa;
}
 
int main()
{
     int tal1;
     int tal2;
     int summa;
     cin >> tal1 >> tal2;
     berakning(tal1, tal2);
     summa = berakning(tal1, tal2);
     cout << summa;
 
 
 
     cin.get();
     cin.ignore();
     return 0;
}

#include <cstdlib>
#include <iostream>
 
int tal1;
int tal2;
int summa;
 
using namespace std;
void berakning();
void berakning()
{
     summa = tal1 + tal2;
}
 
int main()
{
     cin >> tal1 >> tal2;
     berakning();
     cout << summa;
 
 
 
     cin.get();
     cin.ignore();
     return 0;
}

#include <cstdlib>
#include <iostream>
using namespace std;
 
struct Monster
{
       char name[20];
       int hp;
       int dmg;
};
 
 
 
    int playerhp =100;
    int playerdmg =20;
    int monsterhp;
    int monsterdmg;
    string mval;
 
 
 
void mvalf(Monster mygga, Monster tiger, Monster krokodil
, Monster bjorn, Monster gorilla);
void dmg(Monster mygga, Monster tiger, Monster krokodil
, Monster bjorn, Monster gorilla);
 
int main()
{
    Monster mygga =
    {
     "Mygga", //Name
     25, //HP
     20 //Dmg
     };
       Monster tiger =
    {
     "Tiger", //Name
     40, //HP
     50 //Dmg
     };
       Monster krokodil =
    {
     "Krokodil", //Name
     50, //HP
     60 //Dmg
     };
       Monster bjorn =
    {
     "Bjorn", //Name
     80, //HP
     30 //Dmg
     };
       Monster gorilla =
    {
     "Gorilla", //Name
     70, //HP
     45 //Dmg
     };
    string playername;
 
    for ( ; ; )
{
    mvalf(mygga, tiger, krokodil, bjorn, gorilla);
    dmg(mygga, tiger, krokodil , bjorn, gorilla);
}
 
cin.get();
cin.ignore();
return 0;
}
 
void mvalf(Monster mygga, Monster tiger, Monster krokodil
, Monster bjorn, Monster gorilla)
{
system("cls");
 
cout << "Vilket monster vill du möta?" << endl;
cout << "[M]ygga, [T]iger, [K]rokodil, [B]jorn, [G]orilla" << endl;
cin >> mval;
system("cls");
cout << "Du valde:" << endl << endl;
    if (mval=="M" || mval=="m")
{
    cout << mygga.name << endl;
    cout << "HP: " << mygga.hp << endl;
    cout << "Dmg: " << mygga.dmg << endl << endl;
}
else if (mval=="T" || mval=="t")
{
    cout << tiger.name << endl;
    cout << "HP: " << tiger.hp << endl;
    cout << "Dmg: " << tiger.dmg << endl << endl;
}
else if (mval=="K" || mval=="k")
{
    cout << krokodil.name << endl;
    cout << "HP: " << krokodil.hp << endl;
    cout << "Dmg: " << krokodil.dmg << endl << endl;
}
else if (mval=="B" || mval=="b")
{
    cout << bjorn.name << endl;
    cout << "HP: " << bjorn.hp << endl;
    cout << "Dmg: " << bjorn.dmg << endl << endl;
}
else if (mval=="G" || mval=="g")
{
    cout << gorilla.name << endl;
    cout << "HP: " << gorilla.hp << endl;
    cout << "Dmg: " << gorilla.dmg << endl << endl;
}
else
{
    cout << "Invalid KeyHit";
    mvalf(mygga, tiger, krokodil , bjorn, gorilla);
}
cout << "Press enter to continue...";
cin.get();
cin.ignore();
}
 
void dmg(Monster mygga, Monster tiger, Monster krokodil
, Monster bjorn, Monster gorilla)
{
int hit;
 
cout << "Write 1 to hit it!" << endl << endl;
cin >> hit;
if (hit==1)
{
   if (mval=="M" || mval=="m")
   {
   playerhp-=mygga.dmg;
   mygga.hp-=playerdmg;
   system("cls");
   cout << "Myggan har nu " << mygga.hp << " HP" << endl;
   cin.get();
   cin.ignore();
   }
   else if (mval=="T" || mval=="t")
   {
   playerhp-=tiger.dmg;
   tiger.hp-=playerdmg;
   system("cls");
   cout << "Tigern har nu " << tiger.hp << " HP" << endl;
   cin.get();
   cin.ignore();
   }
   else if (mval=="K" || mval=="k")
   {
   playerhp-=krokodil.dmg;
   krokodil.hp-=playerdmg;
   system("cls");
   cout << "Krokodilen har nu " << krokodil.hp << " HP" << endl;
   cin.get();
   cin.ignore();
   }
   else if (mval=="B" || mval=="b")
   {
   playerhp-=bjorn.dmg;
   bjorn.hp-=playerdmg;
   system("cls");
   cout << "Bjornen har nu " << bjorn.hp << " HP" << endl;
   cin.get();
   cin.ignore();
   }
   else if (mval=="G" || mval=="g")
   {
   playerhp-=gorilla.dmg;
   gorilla.hp-=playerdmg;
   system("cls");
   cout << "Gorillan har nu " << gorilla.hp << " HP" << endl;
   cin.get();
   cin.ignore();
   }
}
}

#include <iostream>
#include <ctime>
#include <conio.h>
 
using namespace std;
 
struct Monster{
	 string name;
	 int hp;
	 int dmg;
};
Monster initMonster(Monster enemy, string mval){
	while(true) {
		if(mval=="M" || mval=="m") {
		 	 enemy.name="Mygga";
			 enemy.hp=25;
			 enemy.dmg=20;
		}
		else if(mval=="T" || mval=="t") {
			 enemy.name="Tiger";
			 enemy.hp=40;
			 enemy.dmg=50;
		}
		else if(mval=="B" || mval=="b") {
			 enemy.name="Bjorn";
			 enemy.hp=80;
			 enemy.dmg=30;
		}
		else if(mval=="K" || mval=="k") {
			 enemy.name="Krokodil";
			 enemy.hp=50;
			 enemy.dmg=60;
		}
		else if(mval=="G" || mval=="g") {
			 enemy.name="Gorilla";
			 enemy.hp=70;
			 enemy.dmg=45;
		}
		else{
			 cout << "Invalid KeyHit"<<endl;
			 continue;
		}
		break;
	}
	return enemy;
}
void dmg(Monster enemy, int playerHp, int playerDmg) {
 	 playerHp-=enemy.dmg;
 	 enemy.hp-=playerDmg;
 	 system("cls");   
         cout <<"Din fiende (en " <<enemy.name<<") har nu " <<enemy.hp<<" HP kvar"<<endl;
         cin.ignore();
         cin.get();
}
 
Monster mvalf(Monster enemy) {
	 string mval;
 	 system("cls"); 
	 cout << "Vilket monster vill du möta?" << endl;
	 cout << "[M]ygga, [T]iger, [K]rokodil, [B]jorn, [G]orilla" << endl;
	 cin >> mval;
 
	 system("cls");
	 cout << "Du valde:" << endl << endl;
 
	 enemy=initMonster(enemy, mval);
	 return enemy;
}
 
int main(){
	Monster enemy;
	int playerhp =100;
	int playerdmg =20;    
 	while(true){    //eller for( ;; )
		enemy=mvalf(enemy);
		dmg(enemy, playerhp, playerdmg);
	}	
	return 0;
}

#include <cstdlib>
#include <iostream>
 
using namespace std;
 
struct Monster{
       string name;
       int hp;
       int dmg;
       };
 
Monster mvalfunktion(Monster enemy){
string monsterval;
 
cout << "Choose monster to fight" << endl << endl;
cout << "[M]osquito / [D]ragon:" << endl;
cin >> monsterval;
 
if (monsterval=="M" || monsterval=="m"){
     enemy.name="Mosquito";
     enemy.hp=40;
     enemy.dmg=100;
     }
else if (monsterval=="D" || monsterval=="d"){
     enemy.name="Dragon";
     enemy.hp=100;
     enemy.dmg=40;
     }
else{
     cout << "No such answer";
     cin.get();
     cin.ignore();
     mvalfunktion(enemy);
     }
     return enemy;
}
 
int dmgtomonster(Monster enemy, int playerdmg){
enemy.hp-=playerdmg;
return enemy.hp;
}
 
int dmgtoplayer(Monster enemy, int playerhp){
playerhp-=enemy.dmg;
return playerhp;
}
 
 
 
 
int main()
{
Monster enemy;
int playerhp = 500;
int playerdmg = 30;
 
for ( ; ; ){
    enemy = mvalfunktion(enemy);
    enemy.hp = dmgtomonster(enemy, playerdmg);
    playerhp = dmgtoplayer(enemy, playerhp);
    cout << endl << "player hp: " << playerhp << endl;
    cout << endl << "monster hp: " << enemy.hp << endl;
}
}