//
//  whackAMole/scoreBoard.js
//
//  Created by Thijs Wenker on 5/13/17.
//  Copyright 2017 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

/* global module */
// @module mole
var constants = Script.require('./constants.js');
var helpers = Script.require('./helpers.js');

// Frame numbers for animation
var LOOP_START = 0;
var LOOP_END = 10;

var EMPTY_FRAME = 0;
var ZERO_OFFSET_FRAME = 1;
var NUMBER_BASE = 10;

var ScoreBoard = function(entityIDs) {
    this.entityIDs = entityIDs;
};

ScoreBoard.prototype = {
    entityIDs: null,
    _animate: function(entityID, firstFrame, lastFrame, loop) {
        var animation = Entities.getEntityProperties(entityID, 'animation').animation;
        var entityProperties = {
            animation: {
                currentFrame: firstFrame,
                firstFrame: firstFrame,
                lastFrame: lastFrame,
                running: true,
                url: animation.url,
                loop: loop
            }
        };
        Entities.editEntity(entityID, entityProperties);
    },
    reset: function() {
        this.loopDigits();
    },
    loopDigits: function() {
        for (var i = 0; i < this.entityIDs.length; i++) {
            this._animate(this.entityIDs[i], LOOP_START, LOOP_END, true);
        }
    },
    setScore: function(score) {
        var remainder = score;
        var lastIndex = this.entityIDs.length - 1;
        for (var i = lastIndex; i >= 0; i--) {
            var digitFrame;
            if (remainder > 0 || i === lastIndex) {
                digitFrame = ZERO_OFFSET_FRAME + Math.floor(remainder % NUMBER_BASE);
            } else {
                digitFrame = EMPTY_FRAME;
            }
            this._animate(this.entityIDs[i], digitFrame, digitFrame, true);
            remainder = Math.floor(remainder / NUMBER_BASE);
        }
    }
};

module.exports = ScoreBoard;