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handControllerMouse: improve determination of which controller is moving the most

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That controller will have exclusive control of the mouse reticle.
This commit is contained in:
Anthony J. Thibault 2016-03-08 15:14:37 -08:00
parent e046ba64dd
commit 27fb7a3143
1 changed files with 9 additions and 9 deletions
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18
examples/controllers/handControllerMouse.js
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@ -76,20 +76,20 @@ Script.update.connect(function(deltaTime) {
// Decide which hand should be controlling the pointer
// by comparing which one is moving more, and by
// tending to stay with the one moving more.
var BIAS_ADJUST_RATE = 0.5;
var BIAS_ADJUST_DEADZONE = 0.05;
leftRightBias += (Vec3.length(poseRight.angularVelocity) - Vec3.length(poseLeft.angularVelocity)) * BIAS_ADJUST_RATE;
if (leftRightBias < BIAS_ADJUST_DEADZONE) {
leftRightBias = 0.0;
} else if (leftRightBias > (1.0 - BIAS_ADJUST_DEADZONE)) {
leftRightBias = 1.0;
var BIAS_ADJUST_PERIOD = 1.0;
if (deltaTime > 0.001) {
var tau = Math.clamp(deltaTime / BIAS_ADJUST_PERIOD, 0, 1);
newLeftRightBias = Vec3.length(poseRight.angularVelocity) - Vec3.length(poseLeft.angularVelocity);
leftRightBias = (1 - tau) * leftRightBias + tau * newLeftRightBias;
}
var alpha = leftRightBias > 0 ? 1 : 0;
// Velocity filter the hand rotation used to position reticle so that it is easier to target small things with the hand controllers
var VELOCITY_FILTER_GAIN = 0.5;
filteredRotatedLeft = Vec3.mix(filteredRotatedLeft, rotatedLeft, Math.clamp(Vec3.length(poseLeft.angularVelocity) * VELOCITY_FILTER_GAIN, 0.0, 1.0));
filteredRotatedRight = Vec3.mix(filteredRotatedRight, rotatedRight, Math.clamp(Vec3.length(poseRight.angularVelocity) * VELOCITY_FILTER_GAIN, 0.0, 1.0));
var rotated = Vec3.mix(filteredRotatedLeft, filteredRotatedRight, leftRightBias);
var rotated = Vec3.mix(filteredRotatedLeft, filteredRotatedRight, alpha);
var absolutePitch = rotated.y; // from 1 down to -1 up ... but note: if you rotate down "too far" it starts to go up again...
var absoluteYaw = -rotated.x; // from -1 left to 1 right
@ -110,7 +110,7 @@ Script.update.connect(function(deltaTime) {
var AVERAGING_INTERVAL = 0.95;
var MINIMUM_CONTROLLER_ANGULAR_VELOCITY = 0.03;
var angularVelocityMagnitude = Vec3.length(poseLeft.angularVelocity) * (1.0 - leftRightBias) + Vec3.length(poseRight.angularVelocity) * leftRightBias;
var angularVelocityMagnitude = Vec3.length(poseLeft.angularVelocity) * (1.0 - alpha) + Vec3.length(poseRight.angularVelocity) * alpha;
angularVelocityTrailingAverage = angularVelocityTrailingAverage * AVERAGING_INTERVAL + angularVelocityMagnitude * (1.0 - AVERAGING_INTERVAL);
if (!(xRatio == 0.5 && yRatio == 0) && (angularVelocityTrailingAverage > MINIMUM_CONTROLLER_ANGULAR_VELOCITY) && ((x != lastX) || (y != lastY))) {