rock, paper ,scissors game

rpsg.cpp

#include <iostream>
#include <string>
#include <vector>

int main()
{
	vector<int> comp = {1 , 3, 2, 1, 2, 3, 1, 1, 2, 3};
	vector<string> attacks = { "rocks", "paper", "scissors" };
	string decided_atk = "none", user_decided_atk = "none", results = "none";
	int user_input = 0, rounds = 0, counter = 0, user_points = 0, ai_points = 0;
	bool loop = true;

	while (loop){
		cout << "rock and scissors game: " << endl
			<< "1. 3 rounds: " << endl
			<< "2. 6 rounds: " << endl
			<< "3. 10 rounds: " << endl;

		cin >> rounds;
		if (rounds == 1){
			rounds = 3;
			break;
		}
		else if (rounds = 2){
			rounds = 6;
			break;
		}
		else if (rounds = 3){
			rounds = 10;
			break;
		}
		else{
			cout << "invalid input: " << endl;
			continue;
		}
	}



	while (loop)
	{
		for (int i = 0; i < rounds; i++){
			cout << "\nenter 1 for rock: " << endl
				<< "enter 2 for paper: " << endl
				<< "enter 3 for scissors: " << endl;

			cin >> user_input;

			if (user_input > 3 || user_input < 0){
				cout << "choose 1 - 3 " << endl;
				break;
			}
			else{
				for (int x = 0; x < int(attacks.size()); x++){
					if (comp[i] == x){
						decided_atk = attacks[x];
					}

					if (user_input == x){
						user_decided_atk = attacks[x];
					}
				}

				cout << "you used: " << user_decided_atk << endl
					<< "the computer used: " << decided_atk << endl;

				results = user_decided_atk + decided_atk;

				if (results == "rockscissors" || results == "paperrock" || results == "scissorspaper"){
					cout << "you win " << endl;
					user_points++;
				}
				else if (results == "rockrock" || results == "paperpaper" || results == "scissorsscissors"){
					cout << "tie " << endl;
					user_points++;
					ai_points++;
				}
				else{ cout << "you lose " << endl; ai_points++; }
				counter++;

			}
		}

		if (counter == rounds){
			break;
		}
	}

	cout << "\nresults: " << endl
		<< "user: " << user_points << endl
		<< "computer: " << ai_points << endl;

	if (user_points > ai_points){
		cout << "you win " << endl;
	}
	else if (user_points == ai_points){
		cout << "tie " << endl;
	}
	else{
		cout << "you lose " << endl;
	}

	return 0;
}