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some tweaks to auto-hide

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This commit is contained in:
Brad Hefta-Gaub 2016-02-29 14:24:43 -08:00
parent bd80ecd4dc
commit dc4c4e8c94
1 changed files with 30 additions and 4 deletions
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34
examples/depthReticle.js
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@ -22,11 +22,18 @@ var NON_LINEAR_DIVISOR = 2;
var MINIMUM_SEEK_DISTANCE = 0.01;
var lastMouseMove = Date.now();
var lastMouseX = Reticle.position.x;
var lastMouseY = Reticle.position.y;
var HIDE_STATIC_MOUSE_AFTER = 3000; // 3 seconds
var shouldSeekToLookAt = false;
var fastMouseMoves = 0;
var averageMouseVelocity = 0;
var WEIGHTING = 1/20; // simple moving average over last 20 samples
var ONE_MINUS_WEIGHTING = 1 - WEIGHTING;
var AVERAGE_MOUSE_VELOCITY_FOR_SEEK_TO = 50;
Controller.mouseMoveEvent.connect(function(mouseEvent) {
lastMouseMove = Date.now();
var now = Date.now();
// if the reticle is hidden, show it...
if (!Reticle.visible) {
@ -34,12 +41,30 @@ Controller.mouseMoveEvent.connect(function(mouseEvent) {
if (HMD.active) {
shouldSeekToLookAt = true;
}
} else {
// even if the reticle is visible, if we're in HMD mode, and the person is moving their mouse quickly (shaking it)
// then they are probably looking for it, and we should move into seekToLookAt mode
if (HMD.active && !shouldSeekToLookAt) {
var dx = Reticle.position.x - lastMouseX;
var dy = Reticle.position.y - lastMouseY;
var dt = Math.max(1, (now - lastMouseMove)); // mSecs since last mouse move
var mouseMoveDistance = Math.sqrt((dx*dx) + (dy*dy));
var mouseVelocity = mouseMoveDistance / dt;
averageMouseVelocity = (ONE_MINUS_WEIGHTING * averageMouseVelocity) + (WEIGHTING * mouseVelocity);
if (averageMouseVelocity > AVERAGE_MOUSE_VELOCITY_FOR_SEEK_TO) {
shouldSeekToLookAt = true;
}
}
}
lastMouseMove = now;
lastMouseX = mouseEvent.x;
lastMouseY = mouseEvent.y;
});
function seekToLookAt() {
// if we're currently seeking the lookAt move the mouse toward the lookat
if (shouldSeekToLookAt) {
averageMouseVelocity = 0; // reset this, these never count for movement...
var lookAt2D = HMD.getHUDLookAtPosition2D();
var currentReticlePosition = Reticle.position;
var distanceBetweenX = lookAt2D.x - Reticle.position.x;
@ -57,16 +82,17 @@ function seekToLookAt() {
newPosition.y = lookAt2D.y;
closeEnoughY = true;
}
Reticle.position = newPosition;
if (closeEnoughX && closeEnoughY) {
shouldSeekToLookAt = false;
}
Reticle.position = newPosition;
}
}
function autoHideReticle() {
// if we haven't moved in a long period of time, hide the reticle
if (Reticle.visible) {
// if we haven't moved in a long period of time, and we're not pointing at some
// system overlay (like a window), then hide the reticle
if (Reticle.visible && !Reticle.pointingAtSystemOverlay) {
var now = Date.now();
var timeSinceLastMouseMove = now - lastMouseMove;
if (timeSinceLastMouseMove > HIDE_STATIC_MOUSE_AFTER) {