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499 lines
22 KiB
JavaScript
499 lines
22 KiB
JavaScript
"use strict";
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// tabletStylusInput.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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/* global Script, Entities, MyAvatar, Controller, RIGHT_HAND, LEFT_HAND,
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enableDispatcherModule, disableDispatcherModule, makeRunningValues,
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Messages, Quat, Vec3, getControllerWorldLocation, makeDispatcherModuleParameters, Overlays, ZERO_VEC,
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HMD, INCHES_TO_METERS, DEFAULT_REGISTRATION_POINT, Settings, getGrabPointSphereOffset,
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getEnabledModuleByName
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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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(function() {
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var TouchEventUtils = Script.require("/~/system/libraries/touchEventUtils.js");
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// triggered when stylus presses a web overlay/entity
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var HAPTIC_STYLUS_STRENGTH = 1.0;
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var HAPTIC_STYLUS_DURATION = 20.0;
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var WEB_DISPLAY_STYLUS_DISTANCE = 0.5;
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var WEB_STYLUS_LENGTH = 0.2;
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var WEB_TOUCH_Y_OFFSET = 0.105; // how far forward (or back with a negative number) to slide stylus in hand
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function isNearStylusTarget(stylusTargets, edgeBorder, minNormalDistance, maxNormalDistance) {
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for (var i = 0; i < stylusTargets.length; i++) {
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var stylusTarget = stylusTargets[i];
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// check to see if the projected stylusTip is within within the 2d border
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var borderMin = {x: -edgeBorder, y: -edgeBorder};
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var borderMax = {x: stylusTarget.dimensions.x + edgeBorder, y: stylusTarget.dimensions.y + edgeBorder};
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if (stylusTarget.distance >= minNormalDistance && stylusTarget.distance <= maxNormalDistance &&
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stylusTarget.position2D.x >= borderMin.x && stylusTarget.position2D.y >= borderMin.y &&
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stylusTarget.position2D.x <= borderMax.x && stylusTarget.position2D.y <= borderMax.y) {
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return true;
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}
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}
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return false;
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}
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function calculateNearestStylusTarget(stylusTargets) {
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var nearestStylusTarget;
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for (var i = 0; i < stylusTargets.length; i++) {
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var stylusTarget = stylusTargets[i];
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if ((!nearestStylusTarget || stylusTarget.distance < nearestStylusTarget.distance) &&
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stylusTarget.normalizedPosition.x >= 0 && stylusTarget.normalizedPosition.y >= 0 &&
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stylusTarget.normalizedPosition.x <= 1 && stylusTarget.normalizedPosition.y <= 1) {
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nearestStylusTarget = stylusTarget;
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}
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}
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return nearestStylusTarget;
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}
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function getFingerWorldLocation(hand) {
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var fingerJointName = (hand === RIGHT_HAND) ? "RightHandIndex4" : "LeftHandIndex4";
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var fingerJointIndex = MyAvatar.getJointIndex(fingerJointName);
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var fingerPosition = MyAvatar.getAbsoluteJointTranslationInObjectFrame(fingerJointIndex);
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var fingerRotation = MyAvatar.getAbsoluteJointRotationInObjectFrame(fingerJointIndex);
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var worldFingerRotation = Quat.multiply(MyAvatar.orientation, fingerRotation);
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var worldFingerPosition = Vec3.sum(MyAvatar.position, Vec3.multiplyQbyV(MyAvatar.orientation, fingerPosition));
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return {
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position: worldFingerPosition,
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orientation: worldFingerRotation,
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rotation: worldFingerRotation,
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valid: true
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};
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}
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function distance2D(a, b) {
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var dx = (a.x - b.x);
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var dy = (a.y - b.y);
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return Math.sqrt(dx * dx + dy * dy);
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}
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function TabletStylusInput(hand) {
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this.hand = hand;
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this.previousStylusTouchingTarget = false;
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this.stylusTouchingTarget = false;
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this.useFingerInsteadOfStylus = false;
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this.fingerPointing = false;
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// initialize stylus tip
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var DEFAULT_STYLUS_TIP = {
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position: {x: 0, y: 0, z: 0},
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orientation: {x: 0, y: 0, z: 0, w: 0},
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rotation: {x: 0, y: 0, z: 0, w: 0},
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velocity: {x: 0, y: 0, z: 0},
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valid: false
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};
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this.stylusTip = DEFAULT_STYLUS_TIP;
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this.parameters = makeDispatcherModuleParameters(
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100,
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this.hand === RIGHT_HAND ? ["rightHand"] : ["leftHand"],
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[],
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100);
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this.getOtherHandController = function() {
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return (this.hand === RIGHT_HAND) ? leftTabletStylusInput : rightTabletStylusInput;
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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.updateFingerAsStylusSetting = function () {
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var DEFAULT_USE_FINGER_AS_STYLUS = false;
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var USE_FINGER_AS_STYLUS = Settings.getValue("preferAvatarFingerOverStylus");
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if (USE_FINGER_AS_STYLUS === "") {
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USE_FINGER_AS_STYLUS = DEFAULT_USE_FINGER_AS_STYLUS;
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}
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if (USE_FINGER_AS_STYLUS && MyAvatar.getJointIndex("LeftHandIndex4") !== -1) {
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this.useFingerInsteadOfStylus = true;
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} else {
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this.useFingerInsteadOfStylus = false;
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}
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};
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this.updateStylusTip = function() {
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if (this.useFingerInsteadOfStylus) {
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this.stylusTip = getFingerWorldLocation(this.hand);
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} else {
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this.stylusTip = getControllerWorldLocation(this.handToController(), true);
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// translate tip forward according to constant.
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var TIP_OFFSET = Vec3.multiply(MyAvatar.sensorToWorldScale, {x: 0, y: WEB_STYLUS_LENGTH - WEB_TOUCH_Y_OFFSET, z: 0});
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this.stylusTip.position = Vec3.sum(this.stylusTip.position,
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Vec3.multiplyQbyV(this.stylusTip.orientation, TIP_OFFSET));
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}
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// compute tip velocity from hand controller motion, it is more accurate than computing it from previous positions.
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var pose = Controller.getPoseValue(this.handToController());
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if (pose.valid) {
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var worldControllerPos = Vec3.sum(MyAvatar.position, Vec3.multiplyQbyV(MyAvatar.orientation, pose.translation));
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var worldControllerLinearVel = Vec3.multiplyQbyV(MyAvatar.orientation, pose.velocity);
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var worldControllerAngularVel = Vec3.multiplyQbyV(MyAvatar.orientation, pose.angularVelocity);
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var tipVelocity = Vec3.sum(worldControllerLinearVel, Vec3.cross(worldControllerAngularVel,
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Vec3.subtract(this.stylusTip.position, worldControllerPos)));
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this.stylusTip.velocity = tipVelocity;
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} else {
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this.stylusTip.velocity = {x: 0, y: 0, z: 0};
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}
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};
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this.showStylus = function() {
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if (this.stylus) {
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return;
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}
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var X_ROT_NEG_90 = { x: -0.70710678, y: 0, z: 0, w: 0.70710678 };
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var modelOrientation = Quat.multiply(this.stylusTip.orientation, X_ROT_NEG_90);
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var modelPositionOffset = Vec3.multiplyQbyV(modelOrientation, { x: 0, y: 0, z: MyAvatar.sensorToWorldScale * -WEB_STYLUS_LENGTH / 2 });
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var stylusProperties = {
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name: "stylus",
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url: Script.resourcesPath() + "meshes/tablet-stylus-fat.fbx",
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loadPriority: 10.0,
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position: Vec3.sum(this.stylusTip.position, modelPositionOffset),
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rotation: modelOrientation,
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dimensions: Vec3.multiply(MyAvatar.sensorToWorldScale, { x: 0.01, y: 0.01, z: WEB_STYLUS_LENGTH }),
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solid: true,
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visible: true,
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ignoreRayIntersection: true,
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drawInFront: false,
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parentID: MyAvatar.SELF_ID,
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parentJointIndex: MyAvatar.getJointIndex(this.hand === RIGHT_HAND ?
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"_CAMERA_RELATIVE_CONTROLLER_RIGHTHAND" :
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"_CAMERA_RELATIVE_CONTROLLER_LEFTHAND")
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};
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this.stylus = Overlays.addOverlay("model", stylusProperties);
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};
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this.hideStylus = function() {
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if (!this.stylus) {
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return;
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}
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Overlays.deleteOverlay(this.stylus);
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this.stylus = null;
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};
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this.stealTouchFocus = function(stylusTarget) {
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// send hover events to target
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// record the entity or overlay we are hovering over.
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if ((stylusTarget.entityID === this.getOtherHandController().hoverEntity) ||
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(stylusTarget.overlayID === this.getOtherHandController().hoverOverlay)) {
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this.getOtherHandController().relinquishTouchFocus();
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}
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this.requestTouchFocus(stylusTarget);
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};
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this.requestTouchFocus = function(stylusTarget) {
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// send hover events to target if we can.
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// record the entity or overlay we are hovering over.
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if (stylusTarget.entityID &&
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stylusTarget.entityID !== this.hoverEntity &&
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stylusTarget.entityID !== this.getOtherHandController().hoverEntity) {
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this.hoverEntity = stylusTarget.entityID;
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TouchEventUtils.sendHoverEnterEventToTouchTarget(this.hand, stylusTarget);
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} else if (stylusTarget.overlayID &&
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stylusTarget.overlayID !== this.hoverOverlay &&
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stylusTarget.overlayID !== this.getOtherHandController().hoverOverlay) {
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this.hoverOverlay = stylusTarget.overlayID;
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TouchEventUtils.sendHoverEnterEventToTouchTarget(this.hand, stylusTarget);
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}
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};
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this.hasTouchFocus = function(stylusTarget) {
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return ((stylusTarget.entityID && stylusTarget.entityID === this.hoverEntity) ||
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(stylusTarget.overlayID && stylusTarget.overlayID === this.hoverOverlay));
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};
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this.relinquishTouchFocus = function() {
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// send hover leave event.
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var pointerEvent = { type: "Move", id: this.hand + 1 };
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if (this.hoverEntity) {
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Entities.sendHoverLeaveEntity(this.hoverEntity, pointerEvent);
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this.hoverEntity = null;
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} else if (this.hoverOverlay) {
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Overlays.sendMouseMoveOnOverlay(this.hoverOverlay, pointerEvent);
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Overlays.sendHoverOverOverlay(this.hoverOverlay, pointerEvent);
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Overlays.sendHoverLeaveOverlay(this.hoverOverlay, pointerEvent);
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this.hoverOverlay = null;
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}
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};
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this.pointFinger = function(value) {
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var HIFI_POINT_INDEX_MESSAGE_CHANNEL = "Hifi-Point-Index";
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if (this.fingerPointing !== value) {
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var message;
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if (this.hand === RIGHT_HAND) {
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message = { pointRightIndex: value };
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} else {
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message = { pointLeftIndex: value };
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}
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Messages.sendMessage(HIFI_POINT_INDEX_MESSAGE_CHANNEL, JSON.stringify(message), true);
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this.fingerPointing = value;
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}
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};
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this.otherModuleNeedsToRun = function(controllerData) {
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var grabOverlayModuleName = this.hand === RIGHT_HAND ? "RightNearParentingGrabOverlay" : "LeftNearParentingGrabOverlay";
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var grabOverlayModule = getEnabledModuleByName(grabOverlayModuleName);
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var grabOverlayModuleReady = grabOverlayModule ? grabOverlayModule.isReady(controllerData) : makeRunningValues(false, [], []);
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var farGrabModuleName = this.hand === RIGHT_HAND ? "RightFarActionGrabEntity" : "LeftFarActionGrabEntity";
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var farGrabModule = getEnabledModuleByName(farGrabModuleName);
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var farGrabModuleReady = farGrabModule ? farGrabModule.isReady(controllerData) : makeRunningValues(false, [], []);
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return grabOverlayModuleReady.active || farGrabModuleReady.active;
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};
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this.processStylus = function(controllerData) {
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this.updateStylusTip();
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if (!this.stylusTip.valid || this.overlayLaserActive(controllerData) || this.otherModuleNeedsToRun(controllerData)) {
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this.pointFinger(false);
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this.hideStylus();
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this.stylusTouchingTarget = false;
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this.relinquishTouchFocus();
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return false;
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}
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if (this.useFingerInsteadOfStylus) {
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this.hideStylus();
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}
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// build list of stylus targets, near the stylusTip
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var stylusTargets = [];
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var candidateEntities = controllerData.nearbyEntityProperties;
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var i, props, stylusTarget;
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for (i = 0; i < candidateEntities.length; i++) {
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props = candidateEntities[i];
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if (props && props.type === "Web") {
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stylusTarget = TouchEventUtils.calculateTouchTargetFromEntity(this.stylusTip, candidateEntities[i]);
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if (stylusTarget) {
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stylusTargets.push(stylusTarget);
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}
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}
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}
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// add the tabletScreen, if it is valid
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if (HMD.tabletScreenID && HMD.tabletScreenID !== Uuid.NULL &&
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Overlays.getProperty(HMD.tabletScreenID, "visible")) {
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stylusTarget = TouchEventUtils.calculateTouchTargetFromOverlay(this.stylusTip, HMD.tabletScreenID);
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if (stylusTarget) {
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stylusTargets.push(stylusTarget);
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}
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}
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// add the tablet home button.
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if (HMD.homeButtonID && HMD.homeButtonID !== Uuid.NULL &&
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Overlays.getProperty(HMD.homeButtonID, "visible")) {
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stylusTarget = TouchEventUtils.calculateTouchTargetFromOverlay(this.stylusTip, HMD.homeButtonID);
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if (stylusTarget) {
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stylusTargets.push(stylusTarget);
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}
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}
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var TABLET_MIN_HOVER_DISTANCE = 0.01;
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var TABLET_MAX_HOVER_DISTANCE = 0.1;
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var TABLET_MIN_TOUCH_DISTANCE = -0.05;
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var TABLET_MAX_TOUCH_DISTANCE = TABLET_MIN_HOVER_DISTANCE;
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var EDGE_BORDER = 0.075;
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var hysteresisOffset = 0.0;
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if (this.isNearStylusTarget) {
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hysteresisOffset = 0.05;
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}
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var sensorScaleFactor = MyAvatar.sensorToWorldScale;
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this.isNearStylusTarget = isNearStylusTarget(stylusTargets,
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(EDGE_BORDER + hysteresisOffset) * sensorScaleFactor,
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(TABLET_MIN_TOUCH_DISTANCE - hysteresisOffset) * sensorScaleFactor,
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(WEB_DISPLAY_STYLUS_DISTANCE + hysteresisOffset) * sensorScaleFactor);
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if (this.isNearStylusTarget) {
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if (!this.useFingerInsteadOfStylus) {
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this.showStylus();
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} else {
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this.pointFinger(true);
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}
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} else {
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this.hideStylus();
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this.pointFinger(false);
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}
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var nearestStylusTarget = calculateNearestStylusTarget(stylusTargets);
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var SCALED_TABLET_MIN_TOUCH_DISTANCE = TABLET_MIN_TOUCH_DISTANCE * sensorScaleFactor;
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var SCALED_TABLET_MAX_TOUCH_DISTANCE = TABLET_MAX_TOUCH_DISTANCE * sensorScaleFactor;
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var SCALED_TABLET_MAX_HOVER_DISTANCE = TABLET_MAX_HOVER_DISTANCE * sensorScaleFactor;
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if (nearestStylusTarget && nearestStylusTarget.distance > SCALED_TABLET_MIN_TOUCH_DISTANCE &&
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nearestStylusTarget.distance < SCALED_TABLET_MAX_HOVER_DISTANCE && !this.getOtherHandController().stylusTouchingTarget) {
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this.requestTouchFocus(nearestStylusTarget);
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if (!TouchEventUtils.touchTargetHasKeyboardFocus(nearestStylusTarget)) {
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TouchEventUtils.setKeyboardFocusOnTouchTarget(nearestStylusTarget);
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}
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if (this.hasTouchFocus(nearestStylusTarget) && !this.stylusTouchingTarget) {
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TouchEventUtils.sendHoverOverEventToTouchTarget(this.hand, nearestStylusTarget);
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}
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// filter out presses when tip is moving away from tablet.
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// ensure that stylus is within bounding box by checking normalizedPosition
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if (nearestStylusTarget.valid && nearestStylusTarget.distance > SCALED_TABLET_MIN_TOUCH_DISTANCE &&
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nearestStylusTarget.distance < SCALED_TABLET_MAX_TOUCH_DISTANCE &&
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Vec3.dot(this.stylusTip.velocity, nearestStylusTarget.normal) < 0 &&
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nearestStylusTarget.normalizedPosition.x >= 0 && nearestStylusTarget.normalizedPosition.x <= 1 &&
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nearestStylusTarget.normalizedPosition.y >= 0 && nearestStylusTarget.normalizedPosition.y <= 1) {
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this.stylusTarget = nearestStylusTarget;
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this.stylusTouchingTarget = true;
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}
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} else {
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this.relinquishTouchFocus();
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}
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this.homeButtonTouched = false;
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if (this.isNearStylusTarget) {
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return true;
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} else {
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this.pointFinger(false);
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this.hideStylus();
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return false;
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}
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};
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this.stylusTouchingEnter = function () {
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this.stealTouchFocus(this.stylusTarget);
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TouchEventUtils.sendTouchStartEventToTouchTarget(this.hand, this.stylusTarget);
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Controller.triggerHapticPulse(HAPTIC_STYLUS_STRENGTH, HAPTIC_STYLUS_DURATION, this.hand);
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this.touchingEnterTimer = 0;
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this.touchingEnterStylusTarget = this.stylusTarget;
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this.deadspotExpired = false;
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var TOUCH_PRESS_TO_MOVE_DEADSPOT = 0.0481;
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this.deadspotRadius = TOUCH_PRESS_TO_MOVE_DEADSPOT;
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};
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this.stylusTouchingExit = function () {
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if (this.stylusTarget === undefined) {
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return;
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}
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// special case to handle home button.
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if (this.stylusTarget.overlayID === HMD.homeButtonID) {
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Messages.sendLocalMessage("home", this.stylusTarget.overlayID);
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}
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// send press event
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if (this.deadspotExpired) {
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TouchEventUtils.sendTouchEndEventToTouchTarget(this.hand, this.stylusTarget);
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} else {
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TouchEventUtils.sendTouchEndEventToTouchTarget(this.hand, this.touchingEnterStylusTarget);
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}
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};
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this.stylusTouching = function (controllerData, dt) {
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this.touchingEnterTimer += dt;
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if (this.stylusTarget.entityID) {
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this.stylusTarget = TouchEventUtils.calculateTouchTargetFromEntity(this.stylusTip, this.stylusTarget.entityProps);
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} else if (this.stylusTarget.overlayID) {
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this.stylusTarget = TouchEventUtils.calculateTouchTargetFromOverlay(this.stylusTip, this.stylusTarget.overlayID);
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}
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var TABLET_MIN_TOUCH_DISTANCE = -0.1;
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var TABLET_MAX_TOUCH_DISTANCE = 0.01;
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if (this.stylusTarget) {
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if (this.stylusTarget.distance > TABLET_MIN_TOUCH_DISTANCE &&
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this.stylusTarget.distance < TABLET_MAX_TOUCH_DISTANCE) {
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var POINTER_PRESS_TO_MOVE_DELAY = 0.33; // seconds
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if (this.deadspotExpired || this.touchingEnterTimer > POINTER_PRESS_TO_MOVE_DELAY ||
|
|
distance2D(this.stylusTarget.position2D,
|
|
this.touchingEnterStylusTarget.position2D) > this.deadspotRadius) {
|
|
TouchEventUtils.sendTouchMoveEventToTouchTarget(this.hand, this.stylusTarget);
|
|
this.deadspotExpired = true;
|
|
}
|
|
} else {
|
|
this.stylusTouchingTarget = false;
|
|
}
|
|
} else {
|
|
this.stylusTouchingTarget = false;
|
|
}
|
|
};
|
|
|
|
this.overlayLaserActive = function(controllerData) {
|
|
var rightOverlayLaserModule = getEnabledModuleByName("RightOverlayLaserInput");
|
|
var leftOverlayLaserModule = getEnabledModuleByName("LeftOverlayLaserInput");
|
|
var rightModuleRunning = rightOverlayLaserModule ? !rightOverlayLaserModule.shouldExit(controllerData) : false;
|
|
var leftModuleRunning = leftOverlayLaserModule ? !leftOverlayLaserModule.shouldExit(controllerData) : false;
|
|
return leftModuleRunning || rightModuleRunning;
|
|
};
|
|
|
|
this.isReady = function (controllerData) {
|
|
if (this.processStylus(controllerData)) {
|
|
return makeRunningValues(true, [], []);
|
|
} else {
|
|
return makeRunningValues(false, [], []);
|
|
}
|
|
};
|
|
|
|
this.run = function (controllerData, deltaTime) {
|
|
this.updateFingerAsStylusSetting();
|
|
|
|
if (!this.previousStylusTouchingTarget && this.stylusTouchingTarget) {
|
|
this.stylusTouchingEnter();
|
|
}
|
|
if (this.previousStylusTouchingTarget && !this.stylusTouchingTarget) {
|
|
this.stylusTouchingExit();
|
|
}
|
|
this.previousStylusTouchingTarget = this.stylusTouchingTarget;
|
|
|
|
if (this.stylusTouchingTarget) {
|
|
this.stylusTouching(controllerData, deltaTime);
|
|
}
|
|
if (this.processStylus(controllerData)) {
|
|
return makeRunningValues(true, [], []);
|
|
} else {
|
|
return makeRunningValues(false, [], []);
|
|
}
|
|
};
|
|
|
|
this.cleanup = function () {
|
|
this.hideStylus();
|
|
};
|
|
}
|
|
|
|
var leftTabletStylusInput = new TabletStylusInput(LEFT_HAND);
|
|
var rightTabletStylusInput = new TabletStylusInput(RIGHT_HAND);
|
|
|
|
enableDispatcherModule("LeftTabletStylusInput", leftTabletStylusInput);
|
|
enableDispatcherModule("RightTabletStylusInput", rightTabletStylusInput);
|
|
|
|
this.cleanup = function () {
|
|
leftTabletStylusInput.cleanup();
|
|
rightTabletStylusInput.cleanup();
|
|
disableDispatcherModule("LeftTabletStylusInput");
|
|
disableDispatcherModule("RightTabletStylusInput");
|
|
};
|
|
Script.scriptEnding.connect(this.cleanup);
|
|
}());
|