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Show/hide/expand tablet proxy

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This commit is contained in:
David Rowe 2018-08-10 09:41:25 +12:00
parent 521797b32f
commit 5bada416bb
1 changed files with 129 additions and 7 deletions
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136
scripts/system/tabletRezzer.js
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@ -8,14 +8,29 @@
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
/* global */
/* global getTabletWidthFromSettings */
(function () {
"use strict";
Script.include("./libraries/utils.js");
var // Overlay
proxyOverlay,
proxyOverlay = null,
TABLET_PROXY_DIMENSIONS = { x: 0.0638, y: 0.0965, z: 0.0045 },
TABLET_PROXY_POSITION_LEFT_HAND = {
x: 0,
y: 0.07, // Distance from joint.
z: 0.07 // Distance above palm.
},
TABLET_PROXY_POSITION_RIGHT_HAND = {
x: 0,
y: 0.07, // Distance from joint.
z: 0.07 // Distance above palm.
},
TABLET_PROXY_ROTATION_LEFT_HAND = Quat.fromVec3Degrees({ x: 0, y: 180, z: 90 }),
TABLET_PROXY_ROTATION_RIGHT_HAND = Quat.fromVec3Degrees({ x: 0, y: 180, z: -90 }),
// State machine
PROXY_HIDDEN = 0,
@ -27,6 +42,12 @@
STATE_MACHINE,
rezzerState = PROXY_HIDDEN,
proxyHand,
PROXY_EXPAND_DURATION = 500,
PROXY_EXPAND_TIMEOUT = 25,
proxyExpandTimer = null,
proxyExpandStart,
proxyInitialWidth,
proxyTargetWidth,
// Events
MIN_HAND_CAMERA_ANGLE = 30,
@ -34,10 +55,11 @@
MIN_HAND_CAMERA_ANGLE_COS = Math.cos(Math.PI * MIN_HAND_CAMERA_ANGLE / DEGREES_180),
updateTimer = null,
UPDATE_INTERVAL = 250,
HIFI_OBJECT_MANIPULATION_CHANNEL = "Hifi-Object-Manipulation",
LEFT_HAND = 0,
RIGHT_HAND = 1,
DEBUG = true;
DEBUG = false;
// #region Utilities =======================================================================================================
@ -83,10 +105,73 @@
// #region State Machine ===================================================================================================
function enterProxyHidden() {
Overlays.deleteOverlay(proxyOverlay);
proxyOverlay = null;
}
function enterProxyVisible(hand) {
proxyHand = hand;
proxyOverlay = Overlays.addOverlay("cube", {
parentID: MyAvatar.SELF_ID,
parentJointIndex: handJointIndex(proxyHand),
localPosition: proxyHand === LEFT_HAND ? TABLET_PROXY_POSITION_LEFT_HAND : TABLET_PROXY_POSITION_RIGHT_HAND,
localRotation: proxyHand === LEFT_HAND ? TABLET_PROXY_ROTATION_LEFT_HAND : TABLET_PROXY_ROTATION_RIGHT_HAND,
dimensions: TABLET_PROXY_DIMENSIONS,
solid: true,
grabbable: true,
displayInFront: true,
visible: true
});
}
function expandProxy() {
var scaleFactor = (Date.now() - proxyExpandStart) / PROXY_EXPAND_DURATION;
if (scaleFactor < 1) {
Overlays.editOverlay(proxyOverlay, {
dimensions: Vec3.multiply(
1 + scaleFactor * (proxyTargetWidth - proxyInitialWidth) / proxyInitialWidth,
TABLET_PROXY_DIMENSIONS)
});
proxyExpandTimer = Script.setTimeout(expandProxy, PROXY_EXPAND_TIMEOUT);
return;
}
proxyExpandTimer = null;
setState(TABLET_OPEN);
}
function enterProxyExpanding() {
// Detach from hand.
Overlays.editOverlay(proxyOverlay, {
parentID: Uuid.NULL,
parentJointIndex: -1
});
// Start expanding.
proxyInitialWidth = TABLET_PROXY_DIMENSIONS.x;
proxyTargetWidth = getTabletWidthFromSettings();
proxyExpandStart = Date.now();
proxyExpandTimer = Script.setTimeout(expandProxy, PROXY_EXPAND_TIMEOUT);
}
function exitProxyExpanding() {
if (proxyExpandTimer !== null) {
Script.clearTimeout(proxyExpandTimer);
proxyExpandTimer = null;
}
}
function enterTabletOpen() {
var proxyOverlayProperties = Overlays.getProperties(proxyOverlay, ["position", "orientation"]);
Overlays.deleteOverlay(proxyOverlay);
proxyOverlay = null;
Overlays.editOverlay(HMD.tabletID, {
position: proxyOverlayProperties.position,
orientation: proxyOverlayProperties.orientation
});
HMD.openTablet(true);
}
STATE_MACHINE = {
@ -106,12 +191,12 @@
exit: null
},
PROXY_EXPANDING: { // Tablet proxy has been released from grab and is expanding before showing tablet proper.
enter: null,
enter: enterProxyExpanding,
update: null,
exit: null
exit: exitProxyExpanding
},
TABLET_OPEN: { // Tablet proper is being displayed.
enter: null,
enter: enterTabletOpen,
update: null,
exit: null
}
@ -181,6 +266,14 @@
break;
}
break;
case PROXY_GRABBED:
case PROXY_EXPANDING:
break;
case TABLET_OPEN:
if (!HMD.showTablet) {
setState(PROXY_HIDDEN);
}
break;
default:
error("Missing case: " + rezzerState);
}
@ -188,6 +281,24 @@
updateTimer = Script.setTimeout(update, UPDATE_INTERVAL);
}
function onMessageReceived(channel, data, senderID, localOnly) {
var message;
if (channel !== HIFI_OBJECT_MANIPULATION_CHANNEL) {
return;
}
message = JSON.parse(data);
if (message.grabbedEntity !== proxyOverlay) {
return;
}
if (message.action === "grab" && rezzerState === PROXY_VISIBLE) {
setState(PROXY_GRABBED);
} else if (message.action === "release" && rezzerState === PROXY_GRABBED) {
setState(PROXY_EXPANDING);
}
}
function onMountedChanged() {
// Tablet proxy only available when HMD is mounted.
@ -213,6 +324,9 @@
// #region Start-up and tear-down ==========================================================================================
function setUp() {
Messages.subscribe(HIFI_OBJECT_MANIPULATION_CHANNEL);
Messages.messageReceived.connect(onMessageReceived);
HMD.mountedChanged.connect(onMountedChanged);
HMD.displayModeChanged.connect(onMountedChanged); // For the case that the HMD is already worn when the script starts.
if (HMD.mounted) {
@ -221,17 +335,25 @@
}
function tearDown() {
setState(PROXY_HIDDEN); // Or just tear right down? Perhaps so.
Messages.messageReceived.disconnect(onMessageReceived);
Messages.unsubscribe(HIFI_OBJECT_MANIPULATION_CHANNEL);
HMD.displayModeChanged.disconnect(onMountedChanged);
HMD.mountedChanged.disconnect(onMountedChanged);
if (updateTimer !== null) {
Script.clearTimeout(updateTimer);
updateTimer = null;
}
if (proxyOverlay !== null) {
Overlays.deleteOverlay(proxyOverlay);
}
}
setUp();
Script.scriptEnding.connect(tearDown);
//#endregion
// #endregion
}());