From: Jed Kowalski <satanowicz@...>
Date: 2008-06-10T03:40:59+09:00
Subject: C++ 2 Ruby

Greetings Ruby fans :)
From a couple of months I've been learning C++ but after I found out
about Ruby... it's just GREAT!
Right now im at a beginner level, trying to convert some simplier code
to Ruby (it's easier for me to learn this way)
Can somebody please help me a little? ;>
Ofcourse a working example would be also nice ;)

BTW sorry for my English...

//---------------------------------------------------------------------------
#include<math.h> //WHAT TO DO WITH THOSE
#include<iostream>
#include<cstdio>

//---------------------------------------------------------------------------
#pragma argsused
using namespace std;
class Drink{
   double price;
   char name[20];
   int amount,bought;
   public:
   Drink(double cen, int how_much, char* nn) {
     price=cen;
       amount=how_much;
       strcpy(name,nn);
       bought=0;
                                      };
   double change(double x){
          amount--; //HOW TO DO THIS
          bought++;
          return x-price;
                               };
   int amounti() {return amount;};
   double pricea(){return price;};
   int buy(){return bought;};
   bool canbuy(){
        if (amount==0)
        return false;
        else return true;
                 };
   void namea(){cout<<name;};
   friend class Automat; //WHAT TO DO WIGHT THIS
};
class Automat{
private:
         double tab[2][8],u,w,x;
public:
  Automat(double pie,double dwa,double jed,double piec,double
dwad,double dzi)
    {
         tab[0][0]=pie;
         tab[0][1]=dwa;
         tab[0][2]=jed;
         tab[0][3]=piec;
         tab[0][4]=dwad;
         tab[0][5]=dzi;
         tab[1][0]=5;
         tab[1][1]=2;
         tab[1][2]=1;
         tab[1][3]=0.5;
         tab[1][4]=0.2;
         tab[1][5]=0.1;
         };
  void Coinsy(Drink *n,double s,int g){
         x=s-n[g].price;
              for (int i = 0; i <=5; i++) {
                                w=tab[0][i];
              for (double j =w; j>0; j--)    {
                if ((x-tab[1][i])> -0.0001)    {
                                                   tab[0][i]--;
                                                   x=x-tab[1][i];
                                                   cout<<tab[1][i]<<endl;
                                                               }
                                             }
                                                        }
                                        };
  void write(){
        cout<<"Coins 5zl: "<<tab[0][0]<<endl;
        cout<<"Coins 2zl: "<<tab[0][1]<<endl;
        cout<<"Coins 1zl: "<<tab[0][2]<<endl;
        cout<<"Coins 50gr: "<<tab[0][3]<<endl;
        cout<<"Coins 20gr: "<<tab[0][4]<<endl;
        cout<<"Coins 10gr: "<<tab[0][5]<<endl;
        };
  void add(double x){
        if  (x==5) tab[0][0]++;
        if  (x==2) tab[0][1]++;
        if  (x==1) tab[0][2]++;
        if  (x==0.5)tab[0][3]++;
        if  (x==0.2)tab[0][4]++;
        if  (x==0.1)tab[0][5]++;
        }
};

int main()
{
    int q=1,y,i,g;
    double m=1,s=0;
Automat p(15,15,20,25,25,25);
   Drink Drinke[3]= {
   Drink(1.7,0,"Coca-Cola"),
   Drink(2,0,"Sprite"),
   Drink(2.1,20,"Fanta")
                    };

while(q!=0)
{
      cout<<"What would you like to do?"<<endl;
cout<<"Kupic Drink: press 1"<<endl;
cout<<"Print Coins report: press 2"<<endl;
cout<<"Print bought Drinks report: press 3"<<endl;
cout<<"Exit: press 0"<<endl;
cin>>q;
switch (q) //I'M NOT QUITE SURE HOW TO USE SWITCH IN RUBY
{
case 1: {
          system("cls");
     for (int j = 0; j <3; j++) {
             Drinke[j].namea();
             cout<<": "<<Drinke[j].pricea()<<" nacisnij "<<j<<endl;
                                    }
     cin>>g;
     if (Drinke[g].canbuy()) {
      y=1;
          s=0;
      while (y!=0){
                cout<<"Coins Input: "<<s<<endl<<" What to do: \n\t\t
Input Coins: 0 \n\t\t Buy Drink: 1 \n\t\t Cancel: 2"<<endl;
      cout<<"Your choice: ";
      cin>>y;
      if (y==0) {
        cout<<"Input Coins. ";
                cin>>m;
                s+=m;
                p.add(m);
                      }
      if ((y==1)&&(Drinke[g].change(s)<0))  {cout<<"No cash. Input
Coins."<<endl;}
        else {
        cout<<"change: "<<endl;
                p.Coinsy(Drinke,s,g);
                }
                if (y==2) { break; }
      }
      }
      else cout<<"No such drink."<<endl;
      }
case 2:
  p.write();
case 3: {
        system("cls"); //CAN YOU CLEAR SCREEN IN RUBY?
     cout<<"Drinks bought: "<<endl;
     for (int i=0; i <3; i++)  {
    Drinke[i].namea();
        cout<<": "<<Drinke[i].buy()<<endl;
                               }
cout<<endl;
break;
}
}
}
getchar(); getchar();
  return 0;
}
//---------------------------------------------------------------------------
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