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Control alphaVar, and deal with overlapping cycles.

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howard-stearns 2015-11-03 13:11:31 -08:00
parent a7162eefbe
commit fb4174b9a2
1 changed files with 33 additions and 13 deletions
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46
examples/away.js
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@ -5,6 +5,7 @@
// Goes into "paused" when the '.' key (and automatically when started in HMD), and normal when pressing any key.
// See MAIN CONTROL, below, for what "paused" actually does.
var IK_WINDOW_AFTER_GOING_ACTIVE = 3000; // milliseconds
var OVERLAY_DATA = {
text: "Paused:\npress any key to continue",
font: {size: 75},
@ -15,23 +16,41 @@ var OVERLAY_DATA = {
// ANIMATION
// We currently don't have play/stopAnimation integrated with the animation graph, but we can get the same effect
// using an animation graph with a state that we turn on and off through the animation var defined with that state.
var awayAnimationHandlerId, activeAnimationHandlerId;
var awayAnimationHandlerId, activeAnimationHandlerId, stopper;
function playAwayAnimation() {
function animateAway() {
return {isAway: true, isNotAway: false, isNotMoving: false};
return {isAway: true, isNotAway: false, isNotMoving: false, ikOverlayAlpha: 0.0};
}
if (stopper) {
Script.clearTimeout(stopper);
MyAvatar.removeAnimationStateHandler(activeAnimationHandlerId); // do it now, before making new assignment
}
awayAnimationHandlerId = MyAvatar.addAnimationStateHandler(animateAway, null);
}
function stopAwayAnimation() {
MyAvatar.removeAnimationStateHandler(awayAnimationHandlerId);
if (stopper) { print('WARNING: unexpected double stop'); return; }
// How do we know when to turn ikOverlayAlpha back on?
// It cannot be as soon as we want to stop the away animation, because then things will look goofy as we come out of that animation.
// (Imagine an away animation that sits or kneels, and then stands back up when coming out of it. If head is at the HMD, then it won't
// want to track the standing up animation.)
// Our standard anim graph flips 'awayOutroOnDone' for one frame, but it's a trigger (not an animVar) and other folks might use different graphs.
// So... Just give us a fixed amount of time to be done with animation, before we turn ik back on.
var backToNormal = false;
stopper = Script.setTimeout(function () {
backToNormal = true;
stopper = false;
}, IK_WINDOW_AFTER_GOING_ACTIVE);
function animateActive(state) {
if (!state.isAway) { // Once the right state gets reflected back to us, we don't need the hander any more.
// But we are locked against handler changes during the execution of a handler, so remove asynchronously.
Script.setTimeout(function () { MyAvatar.removeAnimationStateHandler(activeAnimationHandlerId); }, 0);
}
return {isAway: false, isNotAway: true}; // IWBNI we had a way of deleting an anim var.
if (state.ikOverlayAlpha) {
// Once the right state gets reflected back to us, we don't need the hander any more.
// But we are locked against handler changes during the execution of a handler, so remove asynchronously.
Script.setTimeout(function () { MyAvatar.removeAnimationStateHandler(activeAnimationHandlerId); }, 0);
}
// It might be cool to "come back to life" by fading the ik overlay back in over a short time. But let's see how this goes.
return {isAway: false, isNotAway: true, ikOverlayAlpha: backToNormal ? 1.0 : 0.0}; // IWBNI we had a way of deleting an anim var.
}
activeAnimationHandlerId = MyAvatar.addAnimationStateHandler(animateActive, ['isAway']);
activeAnimationHandlerId = MyAvatar.addAnimationStateHandler(animateActive, ['isAway', 'isNotAway', 'isNotMoving', 'ikOverlayAlpha']);
}
// OVERLAY
@ -48,8 +67,8 @@ hideOverlay();
// MAIN CONTROL
var wasMuted, isAway;
function goAway() {
if (isAway) {
function goAway(event) {
if (isAway || event.isAutoRepeat) { // isAutoRepeat is true when held down (or when Windows feels like it)
return;
}
isAway = true;
@ -63,9 +82,9 @@ function goAway() {
showOverlay();
}
function goActive(event) {
if (!isAway) {
if (!isAway || event.isAutoRepeat) {
if (event.text === '.') {
goAway();
goAway(event);
}
return;
}
@ -79,6 +98,7 @@ function goActive(event) {
hideOverlay();
}
Controller.keyPressEvent.connect(goActive);
Script.scriptEnding.connect(goActive);
if (HMD.active) {
goAway();
goAway({}); // give a dummy event object
}