Merge pull request #9696 from ctrlaltdavid/21168

Add finger painting script
This commit is contained in:
Brad Hefta-Gaub 2017-02-19 11:37:25 -08:00 committed by GitHub
commit fa0749b494
5 changed files with 583 additions and 2 deletions

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@ -480,6 +480,10 @@ var LASER_SEARCH_COLOR_XYZW = {x: 10 / 255, y: 10 / 255, z: 255 / 255, w: LASER_
var LASER_TRIGGER_COLOR_XYZW = {x: 250 / 255, y: 10 / 255, z: 10 / 255, w: LASER_ALPHA};
var SYSTEM_LASER_DIRECTION = {x: 0, y: 0, z: -1};
var systemLaserOn = false;
var HIFI_POINTER_DISABLE_MESSAGE_CHANNEL = "Hifi-Pointer-Disable";
var isPointerEnabled = true;
function clearSystemLaser() {
if (!systemLaserOn) {
return;
@ -542,9 +546,8 @@ function update() {
return off();
}
// If there's a HUD element at the (newly moved) reticle, just make it visible and bail.
if (isPointingAtOverlay(hudPoint2d)) {
if (isPointingAtOverlay(hudPoint2d) && isPointerEnabled) {
if (HMD.active) {
Reticle.depth = hudReticleDistance();
@ -579,9 +582,25 @@ function checkSettings() {
}
checkSettings();
// Enable/disable pointer.
function handleMessages(channel, message, sender) {
if (sender === MyAvatar.sessionUUID && channel === HIFI_POINTER_DISABLE_MESSAGE_CHANNEL) {
var data = JSON.parse(message);
if (data.pointerEnabled !== undefined) {
print("pointerEnabled: " + data.pointerEnabled);
isPointerEnabled = data.pointerEnabled;
}
}
}
Messages.subscribe(HIFI_POINTER_DISABLE_MESSAGE_CHANNEL);
Messages.messageReceived.connect(handleMessages);
var settingsChecker = Script.setInterval(checkSettings, SETTINGS_CHANGE_RECHECK_INTERVAL);
Script.update.connect(update);
Script.scriptEnding.connect(function () {
Messages.unsubscribe(HIFI_POINTER_DISABLE_MESSAGE_CHANNEL);
Messages.messageReceived.disconnect(handleMessages);
Script.clearInterval(settingsChecker);
Script.update.disconnect(update);
OffscreenFlags.navigationFocusDisabled = false;

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@ -25,6 +25,11 @@ var OVERLAY_RAMP_RATE = 8.0;
var animStateHandlerID;
var isPointingIndex = false;
var HIFI_POINT_INDEX_MESSAGE_CHANNEL = "Hifi-Point-Index";
var indexfingerJointNames = ["LeftHandIndex1", "LeftHandIndex2", "LeftHandIndex3", "RightHandIndex1", "RightHandIndex2", "RightHandIndex3"];
function clamp(val, min, max) {
return Math.min(Math.max(val, min), max);
}
@ -43,6 +48,8 @@ function init() {
animStateHandler,
["leftHandOverlayAlpha", "rightHandOverlayAlpha", "leftHandGraspAlpha", "rightHandGraspAlpha"]
);
Messages.subscribe(HIFI_POINT_INDEX_MESSAGE_CHANNEL);
Messages.messageReceived.connect(handleMessages);
}
function animStateHandler(props) {
@ -76,11 +83,37 @@ function update(dt) {
} else {
rightHandOverlayAlpha = clamp(rightHandOverlayAlpha - OVERLAY_RAMP_RATE * dt, 0, 1);
}
// Point index finger.
if (isPointingIndex) {
var zeroRotation = { x: 0, y: 0, z: 0, w: 1 };
for (var i = 0; i < indexfingerJointNames.length; i++) {
MyAvatar.setJointRotation(indexfingerJointNames[i], zeroRotation);
}
}
}
function handleMessages(channel, message, sender) {
if (sender === MyAvatar.sessionUUID && channel === HIFI_POINT_INDEX_MESSAGE_CHANNEL) {
var data = JSON.parse(message);
if (data.pointIndex !== undefined) {
print("pointIndex: " + data.pointIndex);
isPointingIndex = data.pointIndex;
if (!isPointingIndex) {
for (var i = 0; i < indexfingerJointNames.length; i++) {
MyAvatar.clearJointData(indexfingerJointNames[i]);
}
}
}
}
}
function shutdown() {
Script.update.disconnect(update);
MyAvatar.removeAnimationStateHandler(animStateHandlerID);
Messages.unsubscribe(HIFI_POINT_INDEX_MESSAGE_CHANNEL);
Messages.messageReceived.disconnect(handleMessages);
}
Script.scriptEnding.connect(shutdown);

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@ -0,0 +1,433 @@
//
// fingerPaint.js
//
// Created by David Rowe on 15 Feb 2017
// Copyright 2017 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
(function () {
var tablet,
button,
BUTTON_NAME = "PAINT",
isFingerPainting = false,
leftHand = null,
rightHand = null,
leftBrush = null,
rightBrush = null,
CONTROLLER_MAPPING_NAME = "com.highfidelity.fingerPaint",
isTabletDisplayed = false,
HIFI_POINT_INDEX_MESSAGE_CHANNEL = "Hifi-Point-Index",
HIFI_GRAB_DISABLE_MESSAGE_CHANNEL = "Hifi-Grab-Disable",
HIFI_POINTER_DISABLE_MESSAGE_CHANNEL = "Hifi-Pointer-Disable";
function paintBrush(name) {
// Paints in 3D.
var brushName = name,
STROKE_COLOR = { red: 250, green: 0, blue: 0 },
ERASE_SEARCH_RADIUS = 0.1, // m
isDrawingLine = false,
entityID,
basePosition,
strokePoints,
strokeNormals,
strokeWidths,
timeOfLastPoint,
MIN_STROKE_LENGTH = 0.005, // m
MIN_STROKE_INTERVAL = 66, // ms
MAX_POINTS_PER_LINE = 70; // Hard-coded limit in PolyLineEntityItem.h.
function strokeNormal() {
return Vec3.multiplyQbyV(Camera.getOrientation(), Vec3.UNIT_NEG_Z);
}
function startLine(position, width) {
// Start drawing a polyline.
if (isDrawingLine) {
print("ERROR: startLine() called when already drawing line");
// Nevertheless, continue on and start a new line.
}
basePosition = position;
strokePoints = [Vec3.ZERO];
strokeNormals = [strokeNormal()];
strokeWidths = [width];
timeOfLastPoint = Date.now();
entityID = Entities.addEntity({
type: "PolyLine",
name: "fingerPainting",
color: STROKE_COLOR,
position: position,
linePoints: strokePoints,
normals: strokeNormals,
strokeWidths: strokeWidths,
dimensions: { x: 10, y: 10, z: 10 }
});
isDrawingLine = true;
}
function drawLine(position, width) {
// Add a stroke to the polyline if stroke is a sufficient length.
var localPosition,
distanceToPrevious,
MAX_DISTANCE_TO_PREVIOUS = 1.0;
if (!isDrawingLine) {
print("ERROR: drawLine() called when not drawing line");
return;
}
localPosition = Vec3.subtract(position, basePosition);
distanceToPrevious = Vec3.distance(localPosition, strokePoints[strokePoints.length - 1]);
if (distanceToPrevious > MAX_DISTANCE_TO_PREVIOUS) {
// Ignore occasional spurious finger tip positions.
return;
}
if (distanceToPrevious >= MIN_STROKE_LENGTH
&& (Date.now() - timeOfLastPoint) >= MIN_STROKE_INTERVAL
&& strokePoints.length < MAX_POINTS_PER_LINE) {
strokePoints.push(localPosition);
strokeNormals.push(strokeNormal());
strokeWidths.push(width);
timeOfLastPoint = Date.now();
Entities.editEntity(entityID, {
linePoints: strokePoints,
normals: strokeNormals,
strokeWidths: strokeWidths
});
}
}
function finishLine(position, width) {
// Finish drawing polyline; delete if it has only 1 point.
if (!isDrawingLine) {
print("ERROR: finishLine() called when not drawing line");
return;
}
if (strokePoints.length === 1) {
// Delete "empty" line.
Entities.deleteEntity(entityID);
}
isDrawingLine = false;
}
function cancelLine() {
// Cancel any line being drawn.
if (isDrawingLine) {
Entities.deleteEntity(entityID);
isDrawingLine = false;
}
}
function eraseClosestLine(position) {
// Erase closest line that is within search radius of finger tip.
var entities,
entitiesLength,
properties,
i,
pointsLength,
j,
distance,
found = false,
foundID,
foundDistance = ERASE_SEARCH_RADIUS;
// Find entities with bounding box within search radius.
entities = Entities.findEntities(position, ERASE_SEARCH_RADIUS);
// Fine polyline entity with closest point within search radius.
for (i = 0, entitiesLength = entities.length; i < entitiesLength; i += 1) {
properties = Entities.getEntityProperties(entities[i], ["type", "position", "linePoints"]);
if (properties.type === "PolyLine") {
basePosition = properties.position;
for (j = 0, pointsLength = properties.linePoints.length; j < pointsLength; j += 1) {
distance = Vec3.distance(position, Vec3.sum(basePosition, properties.linePoints[j]));
if (distance <= foundDistance) {
found = true;
foundID = entities[i];
foundDistance = distance;
}
}
}
}
// Delete found entity.
if (found) {
Entities.deleteEntity(foundID);
}
}
function tearDown() {
cancelLine();
}
return {
startLine: startLine,
drawLine: drawLine,
finishLine: finishLine,
cancelLine: cancelLine,
eraseClosestLine: eraseClosestLine,
tearDown: tearDown
};
}
function handController(name) {
// Translates controller data into application events.
var handName = name,
triggerPressedCallback,
triggerPressingCallback,
triggerReleasedCallback,
gripPressedCallback,
rawTriggerValue = 0.0,
triggerValue = 0.0,
isTriggerPressed = false,
TRIGGER_SMOOTH_RATIO = 0.1,
TRIGGER_OFF = 0.05,
TRIGGER_ON = 0.1,
TRIGGER_START_WIDTH_RAMP = 0.15,
TRIGGER_FINISH_WIDTH_RAMP = 1.0,
TRIGGER_RAMP_WIDTH = TRIGGER_FINISH_WIDTH_RAMP - TRIGGER_START_WIDTH_RAMP,
MIN_LINE_WIDTH = 0.005,
MAX_LINE_WIDTH = 0.03,
RAMP_LINE_WIDTH = MAX_LINE_WIDTH - MIN_LINE_WIDTH,
rawGripValue = 0.0,
gripValue = 0.0,
isGripPressed = false,
GRIP_SMOOTH_RATIO = 0.1,
GRIP_OFF = 0.05,
GRIP_ON = 0.1;
function onTriggerPress(value) {
// Controller values are only updated when they change so store latest for use in update.
rawTriggerValue = value;
}
function updateTriggerPress(value) {
var wasTriggerPressed,
fingerTipPosition,
lineWidth;
triggerValue = triggerValue * TRIGGER_SMOOTH_RATIO + rawTriggerValue * (1.0 - TRIGGER_SMOOTH_RATIO);
wasTriggerPressed = isTriggerPressed;
if (isTriggerPressed) {
isTriggerPressed = triggerValue > TRIGGER_OFF;
} else {
isTriggerPressed = triggerValue > TRIGGER_ON;
}
if (wasTriggerPressed || isTriggerPressed) {
fingerTipPosition = MyAvatar.getJointPosition(handName === "left" ? "LeftHandIndex4" : "RightHandIndex4");
if (triggerValue < TRIGGER_START_WIDTH_RAMP) {
lineWidth = MIN_LINE_WIDTH;
} else {
lineWidth = MIN_LINE_WIDTH
+ (triggerValue - TRIGGER_START_WIDTH_RAMP) / TRIGGER_RAMP_WIDTH * RAMP_LINE_WIDTH;
}
if (!wasTriggerPressed && isTriggerPressed) {
triggerPressedCallback(fingerTipPosition, lineWidth);
} else if (wasTriggerPressed && isTriggerPressed) {
triggerPressingCallback(fingerTipPosition, lineWidth);
} else {
triggerReleasedCallback(fingerTipPosition, lineWidth);
}
}
}
function onGripPress(value) {
// Controller values are only updated when they change so store latest for use in update.
rawGripValue = value;
}
function updateGripPress() {
var fingerTipPosition;
gripValue = gripValue * GRIP_SMOOTH_RATIO + rawGripValue * (1.0 - GRIP_SMOOTH_RATIO);
if (isGripPressed) {
isGripPressed = gripValue > GRIP_OFF;
} else {
isGripPressed = gripValue > GRIP_ON;
if (isGripPressed) {
fingerTipPosition = MyAvatar.getJointPosition(handName === "left" ? "LeftHandIndex4" : "RightHandIndex4");
gripPressedCallback(fingerTipPosition);
}
}
}
function onUpdate() {
updateTriggerPress();
updateGripPress();
}
function setUp(onTriggerPressed, onTriggerPressing, onTriggerReleased, onGripPressed) {
triggerPressedCallback = onTriggerPressed;
triggerPressingCallback = onTriggerPressing;
triggerReleasedCallback = onTriggerReleased;
gripPressedCallback = onGripPressed;
}
function tearDown() {
// Nothing to do.
}
return {
onTriggerPress: onTriggerPress,
onGripPress: onGripPress,
onUpdate: onUpdate,
setUp: setUp,
tearDown: tearDown
};
}
function updateHandFunctions() {
// Update other scripts' hand functions.
var enabled = !isFingerPainting || isTabletDisplayed;
Messages.sendMessage(HIFI_GRAB_DISABLE_MESSAGE_CHANNEL, JSON.stringify({
holdEnabled: enabled,
nearGrabEnabled: enabled,
farGrabEnabled: enabled
}), true);
Messages.sendMessage(HIFI_POINTER_DISABLE_MESSAGE_CHANNEL, JSON.stringify({
pointerEnabled: enabled
}), true);
Messages.sendMessage(HIFI_POINT_INDEX_MESSAGE_CHANNEL, JSON.stringify({
pointIndex: !enabled
}), true);
}
function enableProcessing() {
// Connect controller API to handController objects.
leftHand = handController("left");
rightHand = handController("right");
var controllerMapping = Controller.newMapping(CONTROLLER_MAPPING_NAME);
controllerMapping.from(Controller.Standard.LT).to(leftHand.onTriggerPress);
controllerMapping.from(Controller.Standard.LeftGrip).to(leftHand.onGripPress);
controllerMapping.from(Controller.Standard.RT).to(rightHand.onTriggerPress);
controllerMapping.from(Controller.Standard.RightGrip).to(rightHand.onGripPress);
Controller.enableMapping(CONTROLLER_MAPPING_NAME);
// Connect handController outputs to paintBrush objects.
leftBrush = paintBrush("left");
leftHand.setUp(leftBrush.startLine, leftBrush.drawLine, leftBrush.finishLine, leftBrush.eraseClosestLine);
rightBrush = paintBrush("right");
rightHand.setUp(rightBrush.startLine, rightBrush.drawLine, rightBrush.finishLine, rightBrush.eraseClosestLine);
// Messages channels for enabling/disabling other scripts' functions.
Messages.subscribe(HIFI_POINT_INDEX_MESSAGE_CHANNEL);
Messages.subscribe(HIFI_GRAB_DISABLE_MESSAGE_CHANNEL);
Messages.subscribe(HIFI_POINTER_DISABLE_MESSAGE_CHANNEL);
// Update hand controls.
Script.update.connect(leftHand.onUpdate);
Script.update.connect(rightHand.onUpdate);
}
function disableProcessing() {
Script.update.disconnect(leftHand.onUpdate);
Script.update.disconnect(rightHand.onUpdate);
Controller.disableMapping(CONTROLLER_MAPPING_NAME);
leftBrush.tearDown();
leftBrush = null;
leftHand.tearDown();
leftHand = null;
rightBrush.tearDown();
rightBrush = null;
rightHand.tearDown();
rightHand = null;
Messages.unsubscribe(HIFI_POINT_INDEX_MESSAGE_CHANNEL);
Messages.unsubscribe(HIFI_GRAB_DISABLE_MESSAGE_CHANNEL);
Messages.unsubscribe(HIFI_POINTER_DISABLE_MESSAGE_CHANNEL);
}
function onButtonClicked() {
var wasFingerPainting = isFingerPainting;
isFingerPainting = !isFingerPainting;
button.editProperties({ isActive: isFingerPainting });
print("Finger painting: " + isFingerPainting ? "on" : "off");
if (wasFingerPainting) {
leftBrush.cancelLine();
rightBrush.cancelLine();
}
if (isFingerPainting) {
enableProcessing();
}
updateHandFunctions();
if (!isFingerPainting) {
disableProcessing();
}
}
function onTabletScreenChanged(type, url) {
var TABLET_SCREEN_CLOSED = "Closed";
isTabletDisplayed = type !== TABLET_SCREEN_CLOSED;
updateHandFunctions();
}
function setUp() {
tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
if (!tablet) {
return;
}
// Tablet button.
button = tablet.addButton({
icon: "icons/tablet-icons/finger-paint-i.svg",
activeIcon: "icons/tablet-icons/finger-paint-a.svg",
text: BUTTON_NAME,
isActive: isFingerPainting
});
button.clicked.connect(onButtonClicked);
// Track whether tablet is displayed or not.
tablet.screenChanged.connect(onTabletScreenChanged);
}
function tearDown() {
if (!tablet) {
return;
}
if (isFingerPainting) {
isFingerPainting = false;
updateHandFunctions();
disableProcessing();
}
tablet.screenChanged.disconnect(onTabletScreenChanged);
button.clicked.disconnect(onButtonClicked);
tablet.removeButton(button);
}
setUp();
Script.scriptEnding.connect(tearDown);
}());