//
//  Created by Ryan Huffman on 1/10/2017
//  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
//

/* globals utils */

(function() {
    Script.include('utils.js');

    function Enemy() {
    }
    Enemy.prototype = {
        preload: function(entityID) {
            this.entityID = entityID;

            // To avoid sending extraneous messages and checking entities that we've already
            // seen, we keep track of which entities we've collided with previously.
            this.entityIDsThatHaveCollidedWithMe = [];

            Script.addEventHandler(entityID, "collisionWithEntity", this.onCollide.bind(this));

            var userData = Entities.getEntityProperties(this.entityID, 'userData').userData;
            var data = utils.parseJSON(userData);
            if (data !== undefined && data.gameChannel !== undefined) {
                this.gameChannel = data.gameChannel;
            } else {
                print("enemyEntity.js | ERROR: userData does not contain a game channel and/or team number");
            }
        },
        onCollide: function(entityA, entityB, collision) {
            if (this.entityIDsThatHaveCollidedWithMe.indexOf(entityB) > -1) {
                return;
            }
            this.entityIDsThatHaveCollidedWithMe.push(entityB);

            var colliderName = Entities.getEntityProperties(entityB, 'name').name;

            if (colliderName.indexOf("projectile") > -1) {
                Messages.sendMessage(this.gameChannel, JSON.stringify({
                    type: "enemy-killed",
                    entityID: this.entityID,
                    position: Entities.getEntityProperties(this.entityID, 'position').position
                }));
                Entities.deleteEntity(this.entityID);
            } else if (colliderName.indexOf("GateCollider") > -1) {
                Messages.sendMessage(this.gameChannel, JSON.stringify({
                    type: "enemy-escaped",
                    entityID: this.entityID,
                    position: Entities.getEntityProperties(this.entityID, 'position').position
                }));
                Entities.deleteEntity(this.entityID);
            }
        }
    };

    return new Enemy();
});