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#include <iostream>
#include <string>
using namespace std;
class Cell {
protected:
string query;
string val;
public:
void setVal();
string getVal() {return val;}
string getQuery() {return query;}
virtual void flow(){cout << "*** Error: accessed Cell.flow() \n";};
};
void Cell::setVal(){
cout << getQuery() << " [y/n] ";
cin >> val;
if ((getVal()!="y") && (getVal()!="n")){
while ((getVal()!="y")&&(getVal()!="n")){
cout << "Please enter y or n: ";
cin >> val;
}
}
}
class LinkCell: public Cell {
Cell *yQuery;
Cell *nQuery;
public:
LinkCell(string,Cell*,Cell*);
void flow();
};
LinkCell::LinkCell (string setQuery, Cell *yLink, Cell *nLink) {
query = setQuery;
*yQuery = *yLink;
*nQuery = *nLink;
}
void LinkCell::flow(){
cout << "--> Reached setVal for LinkCell " << getQuery() << endl; setVal();
if (getVal()=="y"){cout << "==> Reached getVal=y : atttemping to execute yQuery '" << yQuery->getQuery() << "'" << endl; yQuery->flow();}
if (getVal()=="n"){cout << "==> Reached getVal=n : atttemping to execute nQuery '" << nQuery->getQuery() << "'" << endl; nQuery->flow();}
}
class EndCell: public Cell {
string yEnd;
string nEnd;
public:
EndCell(string,string,string);
void flow();
};
EndCell::EndCell (string setQuery, string yMessage, string nMessage){
query = setQuery;
yEnd = yMessage;
nEnd = nMessage;
}
void EndCell::flow(){
setVal();
if (getVal()=="y"){cout << yEnd << endl;}
if (getVal()=="n"){cout << nEnd << endl;}
}
int main(){
EndCell sorry("Do you want me to feel sorry for you?","I'm sorry for you","I'm not sorry for you");
EndCell happy("Do you want me to feel happy for you?","I'm happy for you","I'm not happy for you");
EndCell work("Do you want to work now?","Let's do it!","Let's hang out");
LinkCell help("Can I help you?",&work,&sorry);
LinkCell ok("Are you ok?",&happy,&help);
ok.flow();
return 0;
}
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