const uuid = require('node-uuid');

const players = {};

const Game = function() {
    this.id = uuid.v4();
}

Game.prototype.addPlayer = function(id, name) {
    if (!players[id]) {
        players[id] = name;
    }
}

Game.prototype.removePlayer = function(id) {
    players[id] = undefined;
    delete players[id];
}

Game.prototype.getPlayers = function() {
    return players;
}

Game.prototype.getRobots = function() {
    return [
        {i: 9, j: 9, color: '#E00000' },
        {i: 18, j: 9, color: '#00C000' },
        {i: 1, j: 9, color: '#0000FF' },
        {i: 9, j: 18, color: '#00C0C0' },
        {i: 9, j: 1, color: '#F000F0' },
    ];
}

Game.prototype.getWalls = function() {
    // Edge IDs are of the form [i1-j1-i2-j2]. Top left is 0, 0.
    return [
        "1-9-1-10",
        "9-1-10-1",
        "9-19-10-19", 
        "19-9-19-10"
    ];
};

module.exports = Game;