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445 lines
20 KiB
JavaScript
445 lines
20 KiB
JavaScript
"use strict";
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// farActionGrabEntity.js
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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/*jslint bitwise: true */
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/* global Script, Controller, LaserPointers, RayPick, RIGHT_HAND, LEFT_HAND, Mat4, MyAvatar, Vec3, Camera, Quat,
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getGrabPointSphereOffset, getEnabledModuleByName, makeRunningValues, Entities, NULL_UUID,
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enableDispatcherModule, disableDispatcherModule, entityIsDistanceGrabbable,
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makeDispatcherModuleParameters, MSECS_PER_SEC, HAPTIC_PULSE_STRENGTH, HAPTIC_PULSE_DURATION,
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PICK_MAX_DISTANCE, COLORS_GRAB_SEARCHING_HALF_SQUEEZE, COLORS_GRAB_SEARCHING_FULL_SQUEEZE, COLORS_GRAB_DISTANCE_HOLD,
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AVATAR_SELF_ID, DEFAULT_SEARCH_SPHERE_DISTANCE, TRIGGER_OFF_VALUE, TRIGGER_ON_VALUE,
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*/
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Script.include("/~/system/controllers/controllerDispatcherUtils.js");
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Script.include("/~/system/libraries/controllers.js");
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(function() {
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var PICK_WITH_HAND_RAY = true;
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var halfPath = {
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type: "line3d",
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color: COLORS_GRAB_SEARCHING_HALF_SQUEEZE,
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visible: true,
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alpha: 1,
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solid: true,
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glow: 1.0,
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lineWidth: 5,
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ignoreRayIntersection: true, // always ignore this
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drawInFront: true, // Even when burried inside of something, show it.
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parentID: AVATAR_SELF_ID
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};
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var halfEnd = {
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type: "sphere",
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solid: true,
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color: COLORS_GRAB_SEARCHING_HALF_SQUEEZE,
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alpha: 0.9,
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ignoreRayIntersection: true,
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drawInFront: true, // Even when burried inside of something, show it.
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visible: true
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};
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var fullPath = {
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type: "line3d",
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color: COLORS_GRAB_SEARCHING_FULL_SQUEEZE,
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visible: true,
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alpha: 1,
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solid: true,
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glow: 1.0,
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lineWidth: 5,
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ignoreRayIntersection: true, // always ignore this
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drawInFront: true, // Even when burried inside of something, show it.
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parentID: AVATAR_SELF_ID
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};
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var fullEnd = {
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type: "sphere",
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solid: true,
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color: COLORS_GRAB_SEARCHING_FULL_SQUEEZE,
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alpha: 0.9,
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ignoreRayIntersection: true,
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drawInFront: true, // Even when burried inside of something, show it.
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visible: true
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};
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var holdPath = {
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type: "line3d",
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color: COLORS_GRAB_DISTANCE_HOLD,
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visible: true,
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alpha: 1,
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solid: true,
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glow: 1.0,
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lineWidth: 5,
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ignoreRayIntersection: true, // always ignore this
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drawInFront: true, // Even when burried inside of something, show it.
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parentID: AVATAR_SELF_ID
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};
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var renderStates = [{name: "half", path: halfPath, end: halfEnd},
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{name: "full", path: fullPath, end: fullEnd},
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{name: "hold", path: holdPath}];
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var defaultRenderStates = [{name: "half", distance: DEFAULT_SEARCH_SPHERE_DISTANCE, path: halfPath},
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{name: "full", distance: DEFAULT_SEARCH_SPHERE_DISTANCE, path: fullPath},
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{name: "hold", distance: DEFAULT_SEARCH_SPHERE_DISTANCE, path: holdPath}];
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function FarActionGrabEntity(hand) {
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this.hand = hand;
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this.grabbedThingID = null;
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this.actionID = null; // action this script created...
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var ACTION_TTL = 15; // seconds
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var DISTANCE_HOLDING_RADIUS_FACTOR = 3.5; // multiplied by distance between hand and object
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var DISTANCE_HOLDING_ACTION_TIMEFRAME = 0.1; // how quickly objects move to their new position
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var DISTANCE_HOLDING_UNITY_MASS = 1200; // The mass at which the distance holding action timeframe is unmodified
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var DISTANCE_HOLDING_UNITY_DISTANCE = 6; // The distance at which the distance holding action timeframe is unmodified
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this.parameters = makeDispatcherModuleParameters(
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550,
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this.hand === RIGHT_HAND ? ["rightHand"] : ["leftHand"],
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[],
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100);
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this.updateLaserPointer = function(controllerData) {
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var SEARCH_SPHERE_SIZE = 0.011;
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var MIN_SPHERE_SIZE = 0.0005;
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var radius = Math.max(1.2 * SEARCH_SPHERE_SIZE * this.intersectionDistance, MIN_SPHERE_SIZE);
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var dim = {x: radius, y: radius, z: radius};
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var mode = "hold";
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if (!this.distanceHolding && !this.distanceRotating) {
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// mode = (this.triggerSmoothedGrab() || this.secondarySqueezed()) ? "full" : "half";
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if (controllerData.triggerClicks[this.hand]
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// || this.secondarySqueezed() // XXX
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) {
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mode = "full";
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} else {
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mode = "half";
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}
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}
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var laserPointerID = PICK_WITH_HAND_RAY ? this.laserPointer : this.headLaserPointer;
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if (mode === "full") {
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var fullEndToEdit = PICK_WITH_HAND_RAY ? this.fullEnd : fullEnd;
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fullEndToEdit.dimensions = dim;
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LaserPointers.editRenderState(laserPointerID, mode, {path: fullPath, end: fullEndToEdit});
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} else if (mode === "half") {
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var halfEndToEdit = PICK_WITH_HAND_RAY ? this.halfEnd : halfEnd;
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halfEndToEdit.dimensions = dim;
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LaserPointers.editRenderState(laserPointerID, mode, {path: halfPath, end: halfEndToEdit});
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}
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LaserPointers.enableLaserPointer(laserPointerID);
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LaserPointers.setRenderState(laserPointerID, mode);
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if (this.distanceHolding || this.distanceRotating) {
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LaserPointers.setLockEndUUID(laserPointerID, this.grabbedThingID, this.grabbedIsOverlay);
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} else {
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LaserPointers.setLockEndUUID(laserPointerID, null, false);
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}
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};
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this.laserPointerOff = function() {
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LaserPointers.disableLaserPointer(this.laserPointer);
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LaserPointers.disableLaserPointer(this.headLaserPointer);
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};
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this.handToController = function() {
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return (this.hand === RIGHT_HAND) ? Controller.Standard.RightHand : Controller.Standard.LeftHand;
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};
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this.distanceGrabTimescale = function(mass, distance) {
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var timeScale = DISTANCE_HOLDING_ACTION_TIMEFRAME * mass /
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DISTANCE_HOLDING_UNITY_MASS * distance /
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DISTANCE_HOLDING_UNITY_DISTANCE;
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if (timeScale < DISTANCE_HOLDING_ACTION_TIMEFRAME) {
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timeScale = DISTANCE_HOLDING_ACTION_TIMEFRAME;
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}
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return timeScale;
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};
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this.getMass = function(dimensions, density) {
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return (dimensions.x * dimensions.y * dimensions.z) * density;
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};
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this.startFarGrabAction = function (controllerData, grabbedProperties) {
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var controllerLocation = controllerData.controllerLocations[this.hand];
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var worldControllerPosition = controllerLocation.position;
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var worldControllerRotation = controllerLocation.orientation;
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// transform the position into room space
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var worldToSensorMat = Mat4.inverse(MyAvatar.getSensorToWorldMatrix());
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var roomControllerPosition = Mat4.transformPoint(worldToSensorMat, worldControllerPosition);
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var now = Date.now();
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// add the action and initialize some variables
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this.currentObjectPosition = grabbedProperties.position;
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this.currentObjectRotation = grabbedProperties.rotation;
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this.currentObjectTime = now;
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this.currentCameraOrientation = Camera.orientation;
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this.grabRadius = this.grabbedDistance;
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this.grabRadialVelocity = 0.0;
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// offset between controller vector at the grab radius and the entity position
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var targetPosition = Vec3.multiply(this.grabRadius, Quat.getUp(worldControllerRotation));
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targetPosition = Vec3.sum(targetPosition, worldControllerPosition);
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this.offsetPosition = Vec3.subtract(this.currentObjectPosition, targetPosition);
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// compute a constant based on the initial conditions which we use below to exaggerate hand motion
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// onto the held object
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this.radiusScalar = Math.log(this.grabRadius + 1.0);
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if (this.radiusScalar < 1.0) {
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this.radiusScalar = 1.0;
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}
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// compute the mass for the purpose of energy and how quickly to move object
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this.mass = this.getMass(grabbedProperties.dimensions, grabbedProperties.density);
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var distanceToObject = Vec3.length(Vec3.subtract(MyAvatar.position, grabbedProperties.position));
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var timeScale = this.distanceGrabTimescale(this.mass, distanceToObject);
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this.linearTimeScale = timeScale;
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this.actionID = NULL_UUID;
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this.actionID = Entities.addAction("far-grab", this.grabbedThingID, {
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targetPosition: this.currentObjectPosition,
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linearTimeScale: timeScale,
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targetRotation: this.currentObjectRotation,
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angularTimeScale: timeScale,
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tag: "far-grab-" + MyAvatar.sessionUUID,
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ttl: ACTION_TTL
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});
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if (this.actionID === NULL_UUID) {
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this.actionID = null;
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}
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// XXX
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// if (this.actionID !== null) {
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// this.callEntityMethodOnGrabbed("startDistanceGrab");
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// }
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Controller.triggerHapticPulse(HAPTIC_PULSE_STRENGTH, HAPTIC_PULSE_DURATION, this.hand);
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this.turnOffVisualizations();
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this.previousRoomControllerPosition = roomControllerPosition;
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};
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this.continueDistanceHolding = function(controllerData) {
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var controllerLocation = controllerData.controllerLocations[this.hand];
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var worldControllerPosition = controllerLocation.position;
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var worldControllerRotation = controllerLocation.orientation;
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// also transform the position into room space
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var worldToSensorMat = Mat4.inverse(MyAvatar.getSensorToWorldMatrix());
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var roomControllerPosition = Mat4.transformPoint(worldToSensorMat, worldControllerPosition);
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var grabbedProperties = Entities.getEntityProperties(this.grabbedThingID, ["position"]);
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var now = Date.now();
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var deltaObjectTime = (now - this.currentObjectTime) / MSECS_PER_SEC; // convert to seconds
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this.currentObjectTime = now;
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// the action was set up when this.distanceHolding was called. update the targets.
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var radius = Vec3.distance(this.currentObjectPosition, worldControllerPosition) *
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this.radiusScalar * DISTANCE_HOLDING_RADIUS_FACTOR;
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if (radius < 1.0) {
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radius = 1.0;
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}
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var roomHandDelta = Vec3.subtract(roomControllerPosition, this.previousRoomControllerPosition);
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var worldHandDelta = Mat4.transformVector(MyAvatar.getSensorToWorldMatrix(), roomHandDelta);
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var handMoved = Vec3.multiply(worldHandDelta, radius);
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this.currentObjectPosition = Vec3.sum(this.currentObjectPosition, handMoved);
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// XXX
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// this.callEntityMethodOnGrabbed("continueDistantGrab");
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// Update radialVelocity
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var lastVelocity = Vec3.multiply(worldHandDelta, 1.0 / deltaObjectTime);
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var delta = Vec3.normalize(Vec3.subtract(grabbedProperties.position, worldControllerPosition));
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var newRadialVelocity = Vec3.dot(lastVelocity, delta);
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var VELOCITY_AVERAGING_TIME = 0.016;
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var blendFactor = deltaObjectTime / VELOCITY_AVERAGING_TIME;
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if (blendFactor < 0.0) {
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blendFactor = 0.0;
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} else if (blendFactor > 1.0) {
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blendFactor = 1.0;
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}
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this.grabRadialVelocity = blendFactor * newRadialVelocity + (1.0 - blendFactor) * this.grabRadialVelocity;
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var RADIAL_GRAB_AMPLIFIER = 10.0;
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if (Math.abs(this.grabRadialVelocity) > 0.0) {
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this.grabRadius = this.grabRadius + (this.grabRadialVelocity * deltaObjectTime *
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this.grabRadius * RADIAL_GRAB_AMPLIFIER);
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}
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// don't let grabRadius go all the way to zero, because it can't come back from that
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var MINIMUM_GRAB_RADIUS = 0.1;
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if (this.grabRadius < MINIMUM_GRAB_RADIUS) {
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this.grabRadius = MINIMUM_GRAB_RADIUS;
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}
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var newTargetPosition = Vec3.multiply(this.grabRadius, Quat.getUp(worldControllerRotation));
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newTargetPosition = Vec3.sum(newTargetPosition, worldControllerPosition);
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newTargetPosition = Vec3.sum(newTargetPosition, this.offsetPosition);
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// XXX
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// this.maybeScale(grabbedProperties);
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// visualizations
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this.updateLaserPointer(controllerData);
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var distanceToObject = Vec3.length(Vec3.subtract(MyAvatar.position, this.currentObjectPosition));
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this.linearTimeScale = (this.linearTimeScale / 2);
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if (this.linearTimeScale <= DISTANCE_HOLDING_ACTION_TIMEFRAME) {
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this.linearTimeScale = DISTANCE_HOLDING_ACTION_TIMEFRAME;
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}
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var success = Entities.updateAction(this.grabbedThingID, this.actionID, {
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targetPosition: newTargetPosition,
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linearTimeScale: this.linearTimeScale,
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targetRotation: this.currentObjectRotation,
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angularTimeScale: this.distanceGrabTimescale(this.mass, distanceToObject),
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ttl: ACTION_TTL
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});
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if (!success) {
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print("continueDistanceHolding -- updateAction failed: " + this.actionID);
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this.actionID = null;
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}
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this.previousRoomControllerPosition = roomControllerPosition;
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};
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this.ensureDynamic = function () {
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// if we distance hold something and keep it very still before releasing it, it ends up
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// non-dynamic in bullet. If it's too still, give it a little bounce so it will fall.
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var props = Entities.getEntityProperties(this.grabbedThingID, ["velocity", "dynamic", "parentID"]);
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if (props.dynamic && props.parentID == NULL_UUID) {
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var velocity = props.velocity;
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if (Vec3.length(velocity) < 0.05) { // see EntityMotionState.cpp DYNAMIC_LINEAR_VELOCITY_THRESHOLD
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velocity = { x: 0.0, y: 0.2, z: 0.0 };
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Entities.editEntity(this.grabbedThingID, { velocity: velocity });
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}
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}
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};
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this.endNearGrabAction = function () {
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this.ensureDynamic();
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this.distanceHolding = false;
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this.distanceRotating = false;
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Entities.deleteAction(this.grabbedThingID, this.actionID);
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this.actionID = null;
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this.grabbedThingID = null;
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};
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this.isReady = function (controllerData) {
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this.distanceHolding = false;
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this.distanceRotating = false;
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if (controllerData.triggerValues[this.hand] > TRIGGER_ON_VALUE) {
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this.updateLaserPointer(controllerData);
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return makeRunningValues(true, [], []);
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} else {
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return makeRunningValues(false, [], []);
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}
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};
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this.run = function (controllerData) {
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if (controllerData.triggerValues[this.hand] < TRIGGER_OFF_VALUE) {
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this.endNearGrabAction();
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this.laserPointerOff();
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return makeRunningValues(false, [], []);
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}
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// gather up the readiness of the near-grab modules
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var nearGrabNames = [
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this.hand === RIGHT_HAND ? "RightNearActionGrabEntity" : "LeftNearActionGrabEntity",
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this.hand === RIGHT_HAND ? "RightNearParentingGrabEntity" : "LeftNearParentingGrabEntity",
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this.hand === RIGHT_HAND ? "RightNearParentingGrabOverlay" : "LeftNearParentingGrabOverlay"
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];
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var nearGrabReadiness = [];
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for (var i = 0; i < nearGrabNames.length; i++) {
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var nearGrabModule = getEnabledModuleByName(nearGrabNames[i]);
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var ready = nearGrabModule ? nearGrabModule.isReady(controllerData) : makeRunningValues(false, [], []);
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nearGrabReadiness.push(ready);
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}
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if (this.actionID) {
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this.continueDistanceHolding(controllerData);
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// this.updateLaserPointer(controllerData, false, false);
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// var args = [this.hand === RIGHT_HAND ? "right" : "left", MyAvatar.sessionUUID];
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// Entities.callEntityMethod(this.grabbedThingID, "continueFarGrab", args);
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} else {
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var rayPickInfo = controllerData.rayPicks[this.hand];
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if (rayPickInfo.type == RayPick.INTERSECTED_ENTITY) {
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var entityID = rayPickInfo.objectID;
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print("QQQ rayPickInfo.entityID = " + entityID);
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var targetProps = Entities.getEntityProperties(entityID, ["dynamic", "shapeType", "position",
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"rotation", "dimensions", "density",
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"userData", "locked", "type"]);
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if (entityIsDistanceGrabbable(targetProps)) {
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print("QQQ is distance grabbable");
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this.grabbedThingID = entityID;
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this.grabbedDistance = rayPickInfo.distance;
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var otherModuleName = this.hand == RIGHT_HAND ? "LeftFarActionGrabEntity" : "RightFarActionGrabEntity";
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var otherFarGrabModule = getEnabledModuleByName(otherModuleName);
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if (otherFarGrabModule.grabbedThingID == this.grabbedThingID) {
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this.distanceRotating = true;
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this.distanceHolding = false;
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// XXX rotate
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} else {
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this.distanceHolding = true;
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this.distanceRotating = false;
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this.startFarGrabAction(controllerData, targetProps);
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}
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} else {
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print("QQQ is NOT distance grabbable");
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}
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}
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// if we are doing a distance search and this controller moves into a position
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// where it could near-grab something, stop searching.
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for (var j = 0; j < nearGrabReadiness.length; j++) {
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if (nearGrabReadiness[j].active) {
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this.laserPointerOff();
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return makeRunningValues(false, [], []);
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}
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}
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}
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return makeRunningValues(true, [], []);
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};
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this.cleanup = function () {
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LaserPointers.disableLaserPointer(this.laserPointer);
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LaserPointers.removeLaserPointer(this.laserPointer);
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};
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this.halfEnd = halfEnd;
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this.fullEnd = fullEnd;
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this.laserPointer = LaserPointers.createLaserPointer({
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joint: (this.hand == RIGHT_HAND) ? "_CAMERA_RELATIVE_CONTROLLER_RIGHTHAND" : "_CAMERA_RELATIVE_CONTROLLER_LEFTHAND",
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filter: RayPick.PICK_ENTITIES | RayPick.PICK_OVERLAYS,
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maxDistance: PICK_MAX_DISTANCE,
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posOffset: getGrabPointSphereOffset(this.handToController()),
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renderStates: renderStates,
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faceAvatar: true,
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defaultRenderStates: defaultRenderStates
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});
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}
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var leftFarActionGrabEntity = new FarActionGrabEntity(LEFT_HAND);
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var rightFarActionGrabEntity = new FarActionGrabEntity(RIGHT_HAND);
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enableDispatcherModule("LeftFarActionGrabEntity", leftFarActionGrabEntity);
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enableDispatcherModule("RightFarActionGrabEntity", rightFarActionGrabEntity);
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this.cleanup = function () {
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leftFarActionGrabEntity.cleanup();
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rightFarActionGrabEntity.cleanup();
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disableDispatcherModule("LeftFarActionGrabEntity");
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disableDispatcherModule("RightFarActionGrabEntity");
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};
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Script.scriptEnding.connect(this.cleanup);
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}());
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