pongbot.js

//
//  cylinderBlock.js
//
//  Created by David Rowe on 25 Oct 2016.
//  Copyright 2015 High Fidelity, Inc.
//
//  This script displays a progress download indicator when downloads are in progress.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

(function () {

    var MUZZLE_SOUND_URL = "http://hifi-content.s3.amazonaws.com/DomainContent/Welcome%20Area/Sounds/air_gun_1_converted.wav";
    var MUZZLE_SOUND_VOLUME = 0.5;
    var muzzleSound;

    var machineID;

    this.preload = function (entityID) {
        machineID = entityID;
        muzzleSound = SoundCache.getSound(MUZZLE_SOUND_URL);
    }

    this.launchBall = function () {

        var PITCHING_MACHINE_OUTPUT_OFFSET_PCT = {
            x: 0.0,
            y: 0.25,
            z: -1.05,
        };

        function vec3Mult(a, b) {
            return {
                x: a.x * b.x,
                y: a.y * b.y,
                z: a.z * b.z,
            };
        }

        function randomFloat(low, high) {
            if (high === undefined) {
                high = low;
                low = 0;
            }
            return low + Math.random() * (high - low);
        };

        var machineProperties = Entities.getEntityProperties(machineID, ["dimensions", "position", "rotation"]);
        var pitchFromPositionBase = machineProperties.position;
        var pitchFromOffset = vec3Mult(machineProperties.dimensions, PITCHING_MACHINE_OUTPUT_OFFSET_PCT);
        pitchFromOffset = Vec3.multiplyQbyV(machineProperties.rotation, pitchFromOffset);
        var pitchFromPosition = Vec3.sum(pitchFromPositionBase, pitchFromOffset);
        var pitchDirection = Quat.getFront(machineProperties.rotation);
        var ballScale = machineProperties.dimensions.x;

        var velocity = Vec3.multiply(7.0, pitchDirection);

        var BALL_PROPERTIES = {
            type: "Model",
            shapeType: "sphere",
            modelURL: "http://mpassets.highfidelity.com/a250c5bc-1ee1-4c34-a1d0-7a6acbcaa989-v1/ball.fbx",
            dynamic: true,
            dimensions: {
                "x": 0.12999999523162842,
                "y": 0.12999999523162842,
                "z": 0.12999999523162842
            },
            gravity: {
                "x": 0,
                "y": -5.0,
                "z": 0
            },
            density: 100,
            restitution: 0.9900000095367432,
            lifetime: 5
        }

        function shallowCopy(obj) {
            var copy = {}
            for (var key in obj) {
                copy[key] = obj[key];
            }
            return copy;
        }

        var thisBallProperties = shallowCopy(BALL_PROPERTIES);
        thisBallProperties.position = pitchFromPosition;
        thisBallProperties.velocity = velocity;

        Entities.addEntity(thisBallProperties);
    }

    var launchTimer;

    this.toggleLaunching = function () {
        if (!launchTimer) {
            this.launchBall();
            launchTimer = Script.setInterval(this.launchBall, 1000);
        } else {
            Script.clearInterval(launchTimer);
            launchTimer = null;
        }
    }

    this.clickDownOnEntity = function () {
        this.toggleLaunching();
    }

    this.startNearTrigger = function () {
        this.toggleLaunching();
    }

    this.startFarTrigger = function () {
        this.toggleLaunching();
    }
})