/*
 * State model
 */

var model = (function(){

    // Incremental UUID generation for player id's
    var nextUUID = 1;

    // Turn number
    var gameState = {}

    var personlist = [];
    // TODO: slot model.. let's just use a simple grid for now.

    function startGame() {
        gameState = {
            move : 1,
            activePlayer : personlist[0]
        }

        console.log("Game started");
        console.log("Next player: " + gameState.activePlayer.name);
    }

    function generateUUID() {
        nextUUID++;
        return nextUUID;
    }


    function addPerson(name) {
        var person = {
            id : generateUUID(),
            name : name,
            x : 0,
            y : 0
        }

        personlist.push(person);
    }

    // Move number and whose turn is it
    function getState() {
        return gameState;
    }

    function playerAct(person, x, y) {

        var originVector = getOriginVector(person);

        // TODO: Validate action

        // Update person data
        person.x = x;
        person.y = y;

        // Update others
        var personId = person.id;
        for(var i=0; i<personlist.length; i++) {
            var person = personlist[i];

            // Skip self
            if(person.id == personId) {
                continue;
            }

            // Update person based on player action
            person.x += originVector.x;
            person.y += originVector.y;
        }

        // Update game state record
        gameState.move += 1;

        // Next person on the list
        gameState.activePlayer = playerlist(playerlist.indexOf(person)+1);

        return;
    }

    function getOriginVector(person) {
        return {
            x : person.x,
            y : person.y
        }
    }

    return {
        getState : getState,
        playerAct : playerAct,
        addPerson : addPerson,
        startGame : startGame
    };

})();