mirror of
https://github.com/JulianGro/overte.git
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584 lines
28 KiB
JavaScript
584 lines
28 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,
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enableDispatcherModule, disableDispatcherModule, entityIsDistanceGrabbable, entityIsGrabbable,
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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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DEFAULT_SEARCH_SPHERE_DISTANCE, TRIGGER_OFF_VALUE, TRIGGER_ON_VALUE, ZERO_VEC, ensureDynamic,
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getControllerWorldLocation, projectOntoEntityXYPlane, ContextOverlay, HMD, Reticle, Overlays, isPointingAtUI
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Picks, makeLaserLockInfo Xform, makeLaserParams, AddressManager, getEntityParents
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*/
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Script.include("/~/system/libraries/controllerDispatcherUtils.js");
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Script.include("/~/system/libraries/controllers.js");
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Script.include("/~/system/libraries/Xform.js");
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(function() {
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var GRABBABLE_PROPERTIES = [
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"position",
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"registrationPoint",
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"rotation",
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"gravity",
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"collidesWith",
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"dynamic",
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"collisionless",
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"locked",
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"name",
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"shapeType",
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"parentID",
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"parentJointIndex",
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"density",
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"dimensions",
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"userData"
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];
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var MARGIN = 25;
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function TargetObject(entityID, entityProps) {
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this.entityID = entityID;
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this.entityProps = entityProps;
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this.targetEntityID = null;
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this.targetEntityProps = null;
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this.previousCollisionStatus = null;
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this.madeDynamic = null;
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this.makeDynamic = function() {
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if (this.targetEntityID) {
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var newProps = {
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dynamic: true,
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collisionless: true
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};
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this.previousCollisionStatus = this.targetEntityProps.collisionless;
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Entities.editEntity(this.targetEntityID, newProps);
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this.madeDynamic = true;
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}
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};
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this.restoreTargetEntityOriginalProps = function() {
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if (this.madeDynamic) {
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var props = {};
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props.dynamic = false;
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props.collisionless = this.previousCollisionStatus;
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var zeroVector = {x: 0, y: 0, z:0};
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props.localVelocity = zeroVector;
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props.localRotation = zeroVector;
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Entities.editEntity(this.targetEntityID, props);
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}
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};
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this.getTargetEntity = function() {
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var parentPropsLength = this.parentProps.length;
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if (parentPropsLength !== 0) {
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var targetEntity = {
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id: this.parentProps[parentPropsLength - 1].id,
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props: this.parentProps[parentPropsLength - 1]};
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this.targetEntityID = targetEntity.id;
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this.targetEntityProps = targetEntity.props;
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return targetEntity;
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}
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this.targetEntityID = this.entityID;
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this.targetEntityProps = this.entityProps;
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return {
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id: this.entityID,
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props: this.entityProps};
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};
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}
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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.targetObject = null;
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this.actionID = null; // action this script created...
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this.entityToLockOnto = null;
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this.potentialEntityWithContextOverlay = false;
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this.entityWithContextOverlay = false;
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this.contextOverlayTimer = false;
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this.previousCollisionStatus = false;
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this.locked = false;
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this.reticleMinX = MARGIN;
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this.reticleMaxX;
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this.reticleMinY = MARGIN;
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this.reticleMaxY;
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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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makeLaserParams(this.hand, false));
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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 = 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 === Uuid.NULL) {
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this.actionID = null;
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}
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if (this.actionID !== null) {
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var args = [this.hand === RIGHT_HAND ? "right" : "left", MyAvatar.sessionUUID];
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Entities.callEntityMethod(this.grabbedThingID, "startDistanceGrab", args);
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}
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Controller.triggerHapticPulse(HAPTIC_PULSE_STRENGTH, HAPTIC_PULSE_DURATION, this.hand);
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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, GRABBABLE_PROPERTIES);
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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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var args = [this.hand === RIGHT_HAND ? "right" : "left", MyAvatar.sessionUUID];
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Entities.callEntityMethod(this.grabbedThingID, "continueDistanceGrab", args);
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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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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.endNearGrabAction = function () {
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ensureDynamic(this.grabbedThingID);
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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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var args = [this.hand === RIGHT_HAND ? "right" : "left", MyAvatar.sessionUUID];
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Entities.callEntityMethod(this.grabbedThingID, "releaseGrab", args);
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if (this.targetObject) {
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this.targetObject.restoreTargetEntityOriginalProps();
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}
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this.actionID = null;
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this.grabbedThingID = null;
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this.targetObject = null;
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};
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this.updateRecommendedArea = function() {
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var dims = Controller.getViewportDimensions();
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this.reticleMaxX = dims.x - MARGIN;
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this.reticleMaxY = dims.y - MARGIN;
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};
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this.calculateNewReticlePosition = function(intersection) {
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this.updateRecommendedArea();
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var point2d = HMD.overlayFromWorldPoint(intersection);
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point2d.x = Math.max(this.reticleMinX, Math.min(point2d.x, this.reticleMaxX));
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point2d.y = Math.max(this.reticleMinY, Math.min(point2d.y, this.reticleMaxY));
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return point2d;
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};
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this.notPointingAtEntity = function(controllerData) {
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var intersection = controllerData.rayPicks[this.hand];
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var entityProperty = Entities.getEntityProperties(intersection.objectID);
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var entityType = entityProperty.type;
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var hudRayPick = controllerData.hudRayPicks[this.hand];
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var point2d = this.calculateNewReticlePosition(hudRayPick.intersection);
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if ((intersection.type === Picks.INTERSECTED_ENTITY && entityType === "Web") ||
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intersection.type === Picks.INTERSECTED_OVERLAY || Window.isPointOnDesktopWindow(point2d)) {
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return true;
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}
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return false;
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};
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this.distanceRotate = function(otherFarGrabModule) {
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this.distanceRotating = true;
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this.distanceHolding = false;
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var worldControllerRotation = getControllerWorldLocation(this.handToController(), true).orientation;
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var controllerRotationDelta =
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Quat.multiply(worldControllerRotation, Quat.inverse(this.previousWorldControllerRotation));
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// Rotate entity by twice the delta rotation.
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controllerRotationDelta = Quat.multiply(controllerRotationDelta, controllerRotationDelta);
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// Perform the rotation in the translation controller's action update.
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otherFarGrabModule.currentObjectRotation = Quat.multiply(controllerRotationDelta,
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otherFarGrabModule.currentObjectRotation);
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this.previousWorldControllerRotation = worldControllerRotation;
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};
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this.prepareDistanceRotatingData = function(controllerData) {
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var intersection = controllerData.rayPicks[this.hand];
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var controllerLocation = getControllerWorldLocation(this.handToController(), true);
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var worldControllerPosition = controllerLocation.position;
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var worldControllerRotation = controllerLocation.orientation;
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var grabbedProperties = Entities.getEntityProperties(intersection.objectID, GRABBABLE_PROPERTIES);
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this.currentObjectPosition = grabbedProperties.position;
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this.grabRadius = intersection.distance;
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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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// Initial controller rotation.
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this.previousWorldControllerRotation = worldControllerRotation;
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};
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this.destroyContextOverlay = function(controllerData) {
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if (this.entityWithContextOverlay) {
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ContextOverlay.destroyContextOverlay(this.entityWithContextOverlay);
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this.entityWithContextOverlay = false;
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this.potentialEntityWithContextOverlay = false;
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}
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};
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this.targetIsNull = function() {
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var properties = Entities.getEntityProperties(this.grabbedThingID);
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if (Object.keys(properties).length === 0 && this.distanceHolding) {
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return true;
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}
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return false;
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};
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this.isReady = function (controllerData) {
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if (HMD.active) {
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if (this.notPointingAtEntity(controllerData)) {
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return makeRunningValues(false, [], []);
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}
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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.prepareDistanceRotatingData(controllerData);
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return makeRunningValues(true, [], []);
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} else {
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this.destroyContextOverlay();
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return makeRunningValues(false, [], []);
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}
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}
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return makeRunningValues(false, [], []);
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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.notPointingAtEntity(controllerData) || this.targetIsNull()) {
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this.endNearGrabAction();
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return makeRunningValues(false, [], []);
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}
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this.intersectionDistance = controllerData.rayPicks[this.hand].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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// gather up the readiness of the near-grab modules
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var nearGrabNames = [
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this.hand === RIGHT_HAND ? "RightScaleAvatar" : "LeftScaleAvatar",
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this.hand === RIGHT_HAND ? "RightFarTriggerEntity" : "LeftFarTriggerEntity",
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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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// if we are doing a distance grab and the object gets close enough to the controller,
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// stop the far-grab so the near-grab or equip can take over.
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for (var k = 0; k < nearGrabReadiness.length; k++) {
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if (nearGrabReadiness[k].active && nearGrabReadiness[k].targets[0] === this.grabbedThingID) {
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this.endNearGrabAction();
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return makeRunningValues(false, [], []);
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}
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}
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this.continueDistanceHolding(controllerData);
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} else {
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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.endNearGrabAction();
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return makeRunningValues(false, [], []);
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}
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}
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var rayPickInfo = controllerData.rayPicks[this.hand];
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if (rayPickInfo.type === Picks.INTERSECTED_ENTITY) {
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if (controllerData.triggerClicks[this.hand]) {
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var entityID = rayPickInfo.objectID;
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var targetProps = Entities.getEntityProperties(entityID, [
|
|
"dynamic", "shapeType", "position",
|
|
"rotation", "dimensions", "density",
|
|
"userData", "locked", "type", "href"
|
|
]);
|
|
if (targetProps.href !== "") {
|
|
AddressManager.handleLookupString(targetProps.href);
|
|
return makeRunningValues(false, [], []);
|
|
}
|
|
|
|
this.targetObject = new TargetObject(entityID, targetProps);
|
|
this.targetObject.parentProps = getEntityParents(targetProps);
|
|
|
|
if (this.contextOverlayTimer) {
|
|
Script.clearTimeout(this.contextOverlayTimer);
|
|
}
|
|
this.contextOverlayTimer = false;
|
|
if (entityID !== this.entityWithContextOverlay) {
|
|
this.destroyContextOverlay();
|
|
}
|
|
|
|
var targetEntity = this.targetObject.getTargetEntity();
|
|
entityID = targetEntity.id;
|
|
targetProps = targetEntity.props;
|
|
|
|
if (entityIsGrabbable(targetProps)) {
|
|
if (!entityIsDistanceGrabbable(targetProps)) {
|
|
this.targetObject.makeDynamic();
|
|
}
|
|
|
|
if (!this.distanceRotating) {
|
|
this.grabbedThingID = entityID;
|
|
this.grabbedDistance = rayPickInfo.distance;
|
|
}
|
|
|
|
if (otherFarGrabModule.grabbedThingID === this.grabbedThingID &&
|
|
otherFarGrabModule.distanceHolding) {
|
|
this.prepareDistanceRotatingData(controllerData);
|
|
this.distanceRotate(otherFarGrabModule);
|
|
} else {
|
|
this.distanceHolding = true;
|
|
this.distanceRotating = false;
|
|
this.startFarGrabAction(controllerData, targetProps);
|
|
}
|
|
}
|
|
} else if (!this.entityWithContextOverlay) {
|
|
var _this = this;
|
|
|
|
if (_this.potentialEntityWithContextOverlay !== rayPickInfo.objectID) {
|
|
if (_this.contextOverlayTimer) {
|
|
Script.clearTimeout(_this.contextOverlayTimer);
|
|
}
|
|
_this.contextOverlayTimer = false;
|
|
_this.potentialEntityWithContextOverlay = rayPickInfo.objectID;
|
|
}
|
|
|
|
if (!_this.contextOverlayTimer) {
|
|
_this.contextOverlayTimer = Script.setTimeout(function () {
|
|
if (!_this.entityWithContextOverlay &&
|
|
_this.contextOverlayTimer &&
|
|
_this.potentialEntityWithContextOverlay === rayPickInfo.objectID) {
|
|
var props = Entities.getEntityProperties(rayPickInfo.objectID);
|
|
var pointerEvent = {
|
|
type: "Move",
|
|
id: _this.hand + 1, // 0 is reserved for hardware mouse
|
|
pos2D: projectOntoEntityXYPlane(rayPickInfo.objectID, rayPickInfo.intersection, props),
|
|
pos3D: rayPickInfo.intersection,
|
|
normal: rayPickInfo.surfaceNormal,
|
|
direction: Vec3.subtract(ZERO_VEC, rayPickInfo.surfaceNormal),
|
|
button: "Secondary"
|
|
};
|
|
if (ContextOverlay.createOrDestroyContextOverlay(rayPickInfo.objectID, pointerEvent)) {
|
|
_this.entityWithContextOverlay = rayPickInfo.objectID;
|
|
}
|
|
}
|
|
_this.contextOverlayTimer = false;
|
|
}, 500);
|
|
}
|
|
}
|
|
} else if (this.distanceRotating) {
|
|
this.distanceRotate(otherFarGrabModule);
|
|
}
|
|
}
|
|
return this.exitIfDisabled(controllerData);
|
|
};
|
|
|
|
this.exitIfDisabled = function(controllerData) {
|
|
var moduleName = this.hand === RIGHT_HAND ? "RightDisableModules" : "LeftDisableModules";
|
|
var disableModule = getEnabledModuleByName(moduleName);
|
|
if (disableModule) {
|
|
if (disableModule.disableModules) {
|
|
this.endNearGrabAction();
|
|
return makeRunningValues(false, [], []);
|
|
}
|
|
}
|
|
var grabbedThing = (this.distanceHolding || this.distanceRotating) ? this.targetObject.entityID : null;
|
|
var offset = this.calculateOffset(controllerData);
|
|
var laserLockInfo = makeLaserLockInfo(grabbedThing, false, this.hand, offset);
|
|
return makeRunningValues(true, [], [], laserLockInfo);
|
|
};
|
|
|
|
this.calculateOffset = function(controllerData) {
|
|
if (this.distanceHolding || this.distanceRotating) {
|
|
var targetProps = Entities.getEntityProperties(this.targetObject.entityID, [
|
|
"position",
|
|
"rotation"
|
|
]);
|
|
var zeroVector = { x: 0, y: 0, z:0, w: 0 };
|
|
var intersection = controllerData.rayPicks[this.hand].intersection;
|
|
var intersectionMat = new Xform(zeroVector, intersection);
|
|
var modelMat = new Xform(targetProps.rotation, targetProps.position);
|
|
var modelMatInv = modelMat.inv();
|
|
var xformMat = Xform.mul(modelMatInv, intersectionMat);
|
|
var offsetMat = Mat4.createFromRotAndTrans(xformMat.rot, xformMat.pos);
|
|
return offsetMat;
|
|
}
|
|
return undefined;
|
|
};
|
|
}
|
|
|
|
var leftFarActionGrabEntity = new FarActionGrabEntity(LEFT_HAND);
|
|
var rightFarActionGrabEntity = new FarActionGrabEntity(RIGHT_HAND);
|
|
|
|
enableDispatcherModule("LeftFarActionGrabEntity", leftFarActionGrabEntity);
|
|
enableDispatcherModule("RightFarActionGrabEntity", rightFarActionGrabEntity);
|
|
|
|
function cleanup() {
|
|
disableDispatcherModule("LeftFarActionGrabEntity");
|
|
disableDispatcherModule("RightFarActionGrabEntity");
|
|
}
|
|
Script.scriptEnding.connect(cleanup);
|
|
}());
|