////  attachedEntitiesManager.js////  Created by Seth Alves on 2016-1-20//  Copyright 2016 High Fidelity, Inc.////  This script handles messages from the grab script related to wearables, and interacts with a doppelganger.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// Script.include("libraries/utils.js"); var DEFAULT_WEARABLE_DATA = {    joints: {}};  var MINIMUM_DROP_DISTANCE_FROM_JOINT = 0.8;var ATTACHED_ENTITY_SEARCH_DISTANCE = 10.0;var ATTACHED_ENTITIES_SETTINGS_KEY = "ATTACHED_ENTITIES";var DRESSING_ROOM_DISTANCE = 2.0;var SHOW_TOOL_BAR = false; // tool bar if (SHOW_TOOL_BAR) {    var BUTTON_SIZE = 64;    var PADDING = 6;    Script.include(["libraries/toolBars.js"]);     var toolBar = new ToolBar(0, 0, ToolBar.HORIZONTAL, "highfidelity.attachedEntities.toolbar");    var lockButton = toolBar.addTool({        width: BUTTON_SIZE,        height: BUTTON_SIZE,        imageURL: Script.resolvePath("assets/images/lock.svg"),        color: {            red: 255,            green: 255,            blue: 255        },        alpha: 1,        visible: true    }, false);}  function mousePressEvent(event) {    var clickedOverlay = Overlays.getOverlayAtPoint({        x: event.x,        y: event.y    });     if (lockButton === toolBar.clicked(clickedOverlay)) {        manager.toggleLocked();    }} function scriptEnding() {    if (SHOW_TOOL_BAR) {        toolBar.cleanup();    }} if (SHOW_TOOL_BAR) {    Controller.mousePressEvent.connect(mousePressEvent);}Script.scriptEnding.connect(scriptEnding);   // attached entites  function AttachedEntitiesManager() {    var clothingLocked = false;     this.subscribeToMessages = function() {        Messages.subscribe('Hifi-Object-Manipulation');        Messages.messageReceived.connect(this.handleWearableMessages);    }     this.handleWearableMessages = function(channel, message, sender) {        if (channel !== 'Hifi-Object-Manipulation') {            return;        }         var parsedMessage = null;         try {            parsedMessage = JSON.parse(message);        } catch (e) {            print('error parsing wearable message');            return;        }         if (parsedMessage.action === 'update' ||            parsedMessage.action === 'loaded') {            // ignore        } else if (parsedMessage.action === 'release') {            manager.handleEntityRelease(parsedMessage.grabbedEntity, parsedMessage.joint)                // manager.saveAttachedEntities();        } else if (parsedMessage.action === 'equip') {            // manager.saveAttachedEntities();        } else {            print('attachedEntitiesManager -- unknown actions: ' + parsedMessage.action);        }    }     this.handleEntityRelease = function(grabbedEntity, releasedFromJoint) {        // if this is still equipped, just rewrite the position information.        var grabData = getEntityCustomData('grabKey', grabbedEntity, {});         var allowedJoints = getEntityCustomData('wearable', grabbedEntity, DEFAULT_WEARABLE_DATA).joints;         var props = Entities.getEntityProperties(grabbedEntity, ["position", "parentID", "parentJointIndex"]);        if (props.parentID === Uuid.NONE || props.parentID === MyAvatar.sessionUUID) {            var bestJointName = "";            var bestJointIndex = -1;            var bestJointDistance = 0;            var bestJointOffset = null;            for (var jointName in allowedJoints) {                if ((releasedFromJoint == "LeftHand" || releasedFromJoint == "RightHand") &&                    (jointName == "LeftHand" || jointName == "RightHand")) {                    // don't auto-attach to a hand if a hand just dropped something                    continue;                }                var jointIndex = MyAvatar.getJointIndex(jointName);                if (jointIndex >= 0) {                    var jointPosition = MyAvatar.getJointPosition(jointIndex);                    var distanceFromJoint = Vec3.distance(jointPosition, props.position);                    if (distanceFromJoint <= MINIMUM_DROP_DISTANCE_FROM_JOINT) {                        if (bestJointIndex == -1 || distanceFromJoint < bestJointDistance) {                            bestJointName = jointName;                            bestJointIndex = jointIndex;                            bestJointDistance = distanceFromJoint;                            bestJointOffset = allowedJoints[jointName];                        }                    }                }            }             if (bestJointIndex != -1) {                var wearProps = Entities.getEntityProperties(grabbedEntity);                wearProps.parentID = MyAvatar.sessionUUID;                wearProps.parentJointIndex = bestJointIndex;                delete wearProps.localPosition;                delete wearProps.localRotation;                var updatePresets = false;                if (bestJointOffset && bestJointOffset.constructor === Array) {                    if (!clothingLocked || bestJointOffset.length < 2) {                        // we're unlocked or this thing didn't have a preset position, so update it                        updatePresets = true;                    } else {                        // don't snap the entity to the preferred position if unlocked                        wearProps.localPosition = bestJointOffset[0];                        wearProps.localRotation = bestJointOffset[1];                    }                }                 Entities.deleteEntity(grabbedEntity);                //the true boolean here after add entity adds it as an 'avatar entity', which can travel with you from server to server.                 var newEntity = Entities.addEntity(wearProps, true);                 if (updatePresets) {                    this.updateRelativeOffsets(newEntity);                }            } else if (props.parentID != Uuid.NONE) {                // drop the entity and set it to have no parent (not on the avatar), unless it's being equipped in a hand.                if (props.parentID === MyAvatar.sessionUUID &&                    (props.parentJointIndex == MyAvatar.getJointIndex("RightHand") ||                        props.parentJointIndex == MyAvatar.getJointIndex("LeftHand"))) {                    // this is equipped on a hand -- don't clear the parent.                } else {                    var wearProps = Entities.getEntityProperties(grabbedEntity);                    wearProps.parentID = Uuid.NONE;                    wearProps.parentJointIndex = -1;                    delete wearProps.id;                    delete wearProps.created;                    delete wearProps.age;                    delete wearProps.ageAsText;                    delete wearProps.naturalDimensions;                    delete wearProps.naturalPosition;                    delete wearProps.actionData;                    delete wearProps.sittingPoints;                    delete wearProps.boundingBox;                    delete wearProps.avatarEntity;                    delete wearProps.owningAvatarID;                    delete wearProps.localPosition;                    delete wearProps.localRotation;                    Entities.deleteEntity(grabbedEntity);                    Entities.addEntity(wearProps);                }            }        }    }     this.updateRelativeOffsets = function(entityID) {        // save the preferred (current) relative position and rotation into the user-data of the entity        var props = Entities.getEntityProperties(entityID);        if (props.parentID == MyAvatar.sessionUUID) {            grabData = getEntityCustomData('grabKey', entityID, {});            var wearableData = getEntityCustomData('wearable', entityID, DEFAULT_WEARABLE_DATA);            var currentJointName = MyAvatar.getJointNames()[props.parentJointIndex];            wearableData.joints[currentJointName] = [props.localPosition, props.localRotation];            setEntityCustomData('wearable', entityID, wearableData);            return true;        }        return false;    }     // this.saveAttachedEntities = function() {    //     print("--- saving attached entities ---");    //     saveData = [];    //     var nearbyEntities = Entities.findEntities(MyAvatar.position, ATTACHED_ENTITY_SEARCH_DISTANCE);    //     for (i = 0; i < nearbyEntities.length; i++) {    //         var entityID = nearbyEntities[i];    //         if (this.updateRelativeOffsets(entityID)) {    //             var props = Entities.getEntityProperties(entityID); // refresh, because updateRelativeOffsets changed them    //             this.scrubProperties(props);    //             saveData.push(props);    //         }    //     }    //     Settings.setValue(ATTACHED_ENTITIES_SETTINGS_KEY, JSON.stringify(saveData));    // }     // this.scrubProperties = function(props) {    //     var toScrub = ["queryAACube", "position", "rotation",    //                    "created", "ageAsText", "naturalDimensions",    //                    "naturalPosition", "velocity", "acceleration",    //                    "angularVelocity", "boundingBox"];    //     toScrub.forEach(function(propertyName) {    //         delete props[propertyName];    //     });    //     // if the userData has a grabKey, clear old state    //     if ("userData" in props) {    //         try {    //             parsedUserData = JSON.parse(props.userData);    //             if ("grabKey" in parsedUserData) {    //                 parsedUserData.grabKey.refCount = 0;    //                 delete parsedUserData.grabKey["avatarId"];    //                 props["userData"] = JSON.stringify(parsedUserData);    //             }    //         } catch (e) {    //         }    //     }    // }     // this.loadAttachedEntities = function(grabbedEntity) {    //     print("--- loading attached entities ---");    //     jsonAttachmentData = Settings.getValue(ATTACHED_ENTITIES_SETTINGS_KEY);    //     var loadData = [];    //     try {    //         loadData = JSON.parse(jsonAttachmentData);    //     } catch (e) {    //         print('error parsing saved attachment data');    //         return;    //     }     //     for (i = 0; i < loadData.length; i ++) {    //         var savedProps = loadData[ i ];    //         var currentProps = Entities.getEntityProperties(savedProps.id);    //         if (currentProps.id == savedProps.id &&    //             // TODO -- also check that parentJointIndex matches?    //             currentProps.parentID == MyAvatar.sessionUUID) {    //             // entity is already in-world.  TODO -- patch it up?    //             continue;    //         }    //         this.scrubProperties(savedProps);    //         delete savedProps["id"];    //         savedProps.parentID = MyAvatar.sessionUUID; // this will change between sessions    //         var loadedEntityID = Entities.addEntity(savedProps, true);     //         Messages.sendMessage('Hifi-Object-Manipulation', JSON.stringify({    //             action: 'loaded',    //             grabbedEntity: loadedEntityID    //         }));    //     }    // }} var manager = new AttachedEntitiesManager();manager.subscribeToMessages();