#include <iostream>
#include <ctime>
#include <cstdlib>
#include <string>
using namespace std;

//This program is a game of rock, paper, scissors.

void pcAI(int, string &); //Function Prototype
void Converter(int, string &);
void winner(string, string, string&);

int main(){
	char yup = 'y';
	while (yup == 'y' || yup == 'Y'){ //run until user does not want to continue
		cout << "\nLet's Play A Game of Rock, Paper, Scissors! \n\nPick your Weapon:\n";
		cout << "\t(1) Rock.\n\t(2) Paper.\n\t(3) Scissors.\n";

		int usrInput, pcx = 0;
		string menuStr, pcIn; //used to fetch name of choice
		cin >> usrInput;

		Converter(usrInput, menuStr); //send user choice and get equivalent string back
		pcAI(pcx, pcIn); //(garbage, string) from PC

		if (menuStr != pcIn){
			cout << "\t\tYou: <" << menuStr << "> vs Computer: <" << pcIn << ">.\n";
			string winStr;
			winner(menuStr, pcIn, winStr); //Find the winner
			cout << winStr << endl;
		}
		else //catch the same values
			cout << "\t<" << menuStr << "> vs <" << pcIn << "> are the same, redraw.\n";

		cout << "\n\n\t\t\tAnother game (y|Y) ? ";
		cin >> yup; //y=continue, anything else exit loop
		cin.ignore();
	}		
	cout << "\nThanks for playing! " << endl;
	cin.ignore();
	return 0;
}

void pcAI(int toMenu, string &out)
{
	srand((int)time(0)); //Generates a number from 1-3. 
	toMenu = (rand() % 3 + 1);
	Converter(toMenu, out); //Send number to Converter and fetch/output string
}

void Converter(int in, string &out) //Convert number to name
{
	switch (in){ //####FYI####  Switch can also accept integers
	case 1:
		out = "Rock";
		break;
	case 2:
		out = "Paper";
		break;
	case 3:
		out = "Scissors";
		break;
	}
}

void winner(string player, string pc, string &out){ //Decide winner
	if (player == "Rock" && pc == "Scissors")
		out = "\t\tThe rock smashes the scissors. PLAYER won, Congrats!";
	else if (player == "Scissors" && pc == "Paper")
		out = "\t\tScissors cuts paper. PLAYER won, Congrats!";
	else if (player == "Paper" && pc == "Rock")
		out = "\t\tPaper wraps rock. PLAYER won, Congrats!";
	else if (pc == "Rock" && player == "Scissors")
		out = "\t\tThe rock smashes the scissors. COMPUTER won.";
	else if (pc == "Scissors" && player == "Paper")
		out = "\t\tScissors cuts paper. COMPUTER won.";
	else if (pc == "Paper" && player == "Rock")
		out = "\t\tPaper wraps rock. COMPUTER won.";
}