AOC2022/02/solution.cpp

#include <iostream>
#include <fstream>
using namespace std;

// A:X Rock      | 1
// B:Y Paper     | 2
// C:Z Scissors  | 3
// Loss: 0  | Draw: 3   | Win: 6

// X: Loose | Y: Draw | Z: Win

class Play
{
public:
    int value;
    int beats;
    char looses;

    Play(){};
    Play(char playType)
    {
        if (playType == 'A' || playType == 'X')
        {
            value = 1;
            beats = 3;
            looses = 'B';
        }
        else if (playType == 'B' || playType == 'Y') 
        {
            value = 2;
            beats = 1;
            looses = 'C';
        }
        else
        {
            value = 3;
            beats = 2;
            looses = 'A';
        }
    }

    int compete(Play* other)
    {
        int score {this->value};
        if (this->beats == other->value)
            return score + 6;
        else if (score == other->value)
            return score + 3;
        else
            return score;
    }

};

char toPlayType(int value)
{
    switch (value)
    {
        case 1:
            return 'A';
        case 2:
            return 'B';
        case 3:
            return 'C';
    }
}

int main()
{
    ifstream inputFile("input.txt");
    string game;
    int totalScore {0};

    while (getline(inputFile, game))
    {
        // Split this text of the game
        cout << '\n' << game[2] << "    " << game[0] << endl;
        Play them {Play(game[0])};
        Play me;
        switch (game[2])
        {
            case 'X':
                me = Play(toPlayType(them.beats));
                break;
            case 'Y':
                me = Play(toPlayType(them.value));
                break;
            case 'Z':
                me = Play(them.looses);
                break;
        }     

        int score = me.compete(&them);
        cout << me.value << " vs " << them.value << "\t| " << score << endl;
        totalScore += score;
    }

    cout << '\n' << totalScore << endl;
}