socketLogics.js

function socketLogics(app) {
  const http = require("http").Server(app);
  const io = require("socket.io")(http);

  var gameboard = {};
  var players = [];

  // Todo: confirm player is in current session. If not send signal for relogin

  // Set up socket.io action
  io.on("connection", function (socket) {

    // Notify send over socket identifying info and notify other players
    console.log("user id: " + socket.id + " connected");
    io.to(socket.id).emit("id assignment", socket.id);
    io.emit("new player", players);

    // Detect player login
    socket.on("new player", playerName => {
      const player = {
        name: playerName,
        id: socket.id
      }
      console.log("new player", player);
      players.push(player);
      io.emit("new player", players);
    });

    // Detect dice roll
    socket.on("dice action", (playerId, dice) => {
      if (players.findIndex(obj => obj.id == playerId) !== -1) {
        const playerName = players[players.findIndex(obj => obj.id == socket.id)].name;

        // initialize player to grameboard
        if (!gameboard[playerId]) {
          console.log(playerName + " added in gameboard");
          gameboard[playerId] = {
            name: playerName,
            id: playerId,
          }
        }
        gameboard[playerId] = { ...gameboard[playerId], dice }
        io.emit("player rolled", playerName);

        console.log("recorded", playerName, playerId, gameboard[playerId].dice);
      }

    });

    // On receiving game action, emit to everyone including the sender
    socket.on("game action", action => {
      console.log("game action: ", action);
      if (action === "reveal") {
        io.emit("reveal score", gameboard);
        gameboard = {};
      }
    });



    socket.on("disconnect", function () {
      const playerIndex = players.findIndex(player => player.id === socket.id);
      delete gameboard[socket.id];

      if (playerIndex != -1) {
        console.log("playerIndex", playerIndex);
        const playerName = players[playerIndex].name;
        players.splice(playerIndex, 1);
        io.emit("player left", players);
        console.log(playerName, socket.id, "disconnected");
      }

    });
  });

  const port = process.env.PORT || 5000;

  http.listen(port, function () {
    console.log(`listening on port: ${port}`);
  });
}

module.exports = socketLogics;