overte-HifiExperiments/examples/stick.js

//  stick.js
//  examples
//
//  Created by Seth Alves on 2015-6-10
//  Copyright 2015 High Fidelity, Inc.
//
//  Allow avatar to hold a stick
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

var stickID = null;
var actionID = "00000000-0000-0000-0000-000000000000";
// sometimes if this is run immediately the stick doesn't get created?  use a timer.
Script.setTimeout(function() {
    stickID = Entities.addEntity({
        type: "Model",
        modelURL: "https://hifi-public.s3.amazonaws.com/eric/models/stick.fbx",
        compoundShapeURL: "https://hifi-public.s3.amazonaws.com/eric/models/stick.obj",
        dimensions: {x: .11, y: .11, z: .59},
        position: MyAvatar.getRightPalmPosition(),
        rotation: MyAvatar.orientation,
        damping: .1,
        collisionsWillMove: true
    });
    actionID = Entities.addAction("hold", stickID, {relativePosition: {x: 0.0, y: 0.0, z: -0.9}, timeScale: 0.15});
}, 3000);


function cleanUp() {
    Entities.deleteEntity(stickID);
}

function mouseMoveEvent(event) {
    if (!stickID || actionID == "00000000-0000-0000-0000-000000000000") {
        return;
    }
    var windowCenterX = Window.innerWidth/ 2;
    var windowCenterY = Window.innerHeight / 2;
    var mouseXCenterOffset = event.x - windowCenterX;
    var mouseYCenterOffset = event.y - windowCenterY;
    var mouseXRatio = mouseXCenterOffset / windowCenterX;
    var mouseYRatio = mouseYCenterOffset / windowCenterY;

    var stickOrientation = Quat.fromPitchYawRollDegrees(mouseYRatio * -90, mouseXRatio * -90, 0);
    var baseOffset = {x: 0.0, y: 0.0, z: -0.9};
    var offset = Vec3.multiplyQbyV(stickOrientation, baseOffset);

    Entities.updateAction(stickID, actionID, {relativePosition: offset,
                                              relativeRotation: stickOrientation,
                                              timeScale: 0.15});
}

Script.scriptEnding.connect(cleanUp);
Controller.mouseMoveEvent.connect(mouseMoveEvent);