A function for starting a game based in turns and rounds. You can select the initial player and the starting round. Made for practicing remainders

startTurnBasedGame.js

startTurnBasedGame(5, 3, 4);

function startTurnBasedGame(num_players, num_rounds, turn_time, init_player=1, init_round=1) {

    let [elapsed_time, player_turn, round, actual_player] = [0, 0, init_round, init_player-1];

    const getPlayer = () => actual_player === num_players ? num_players : actual_player % num_players;
    const printTimeInfo = remaining_time => console.log(
        `Next turn in: ${remaining_time}s`, `Player: ${getPlayer()}`, `Round: ${round}/${num_rounds}`
    );

    const interval = setInterval(roundsInterval, 1000);
    
    function roundsInterval() {
        const remainder = turn_time - (elapsed_time % turn_time);
        
        if (remainder === turn_time) {

            if (player_turn++ === num_players) {
                player_turn = 1;                
                if (round++ === num_rounds) {
                    console.log("------- Game finished! -------");
                    return clearInterval(interval);
                }
            }
            
            actual_player = getPlayer() === num_players ? 1 : actual_player + 1;
            elapsed_time = 1;

            console.log(`------- Round ${round} - Player ${actual_player} -------`)
            printTimeInfo(turn_time);
            
        } else {
            elapsed_time++;
            printTimeInfo(remainder);
        }
    }
    
}