#include <iostream> 
#include<ctime> 

using namespace std; 

char getUserChoice(); 
char getComputerChoice();
void showChoice(char choice);
void chooseWinner(char player, char computer);  

int main(){
    char player; 
    char computer; 

    player = getUserChoice(); 
    cout << "Your choice: ";
    showChoice(player);
    
    computer = getComputerChoice(); 
    cout << "Computer's choice: ";
    showChoice(computer); 

    chooseWinner(player, computer); 

}

char getUserChoice(){
    char player; 
    cout << "Rock, Papaer, Scissors Game! \\n"; 
    cout << "**************************** \\n"; 

    do{
        cout << "Choose one of the following\\n";
        cout << "'r' for rock \\n";
        cout << "'p' for paper \\n";
        cout << "'s' for scissors \\n"; 
        cin >> player; 
    }while(player != 'r' && player != 'p' && player != 's'); 
    
    return player; 
}
char getComputerChoice(){
    srand(time(0));
    int num = rand() % 3 + 1; 

    switch(num){
        case 1: 
            return 'r'; 
        case 2: 
            return 'p'; 
        case 3:
            return 's';  
    }
    return 0;
}
void showChoice(char choice){
    switch(choice){
        case 'r': 
            cout << "Rock\\n";
            break; 
        case 'p': 
            cout << "Paper\\n";
            break; 
        case 's':
            cout << "Scissors\\n";
            break; 
    }
}
void chooseWinner(char player, char computer){

    switch(player){
        case 'r': 
            if(computer == 'r'){
                cout << "It's a tie\\n";
            }else if (computer == 'p'){
                cout << "You lose\\n"; 
            }else{
                cout << "You win\\n"; 
            }
            break; 
        case 'p': 
            if(computer == 'r'){
                cout << "You win\\n";
            }else if (computer == 'p'){
                cout << "You tie\\n"; 
            }else{
                cout << "You lose\\n"; 
            }
            break; 
         case 's': 
            if(computer == 'r'){
                cout << "You lose\\n";
            }else if (computer == 'p'){
                cout << "You win\\n"; 
            }else{
                cout << "You tie\\n"; 
            }
            break; 
    } 

   

}