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Fix shake button (#1983)

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* initial fix for shake button

* minor cleanup

* always run if forced

* refactor a bit

* only ever enqueue if gesture is different from previous
This commit is contained in:
Joey Wunderlich 2019-04-09 14:19:33 -07:00 committed by GitHub
parent 3fe3642a58
commit 5ac97925a2
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1 changed files with 15 additions and 15 deletions
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30
sim/state/accelerometer.ts
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@ -258,32 +258,32 @@ namespace pxsim {
updateGesture() {
// Determine what it looks like we're doing based on the latest sample...
let g = this.instantaneousPosture();
this.setGesture(g);
}
private setGesture(g: number) {
// Perform some low pass filtering to reduce jitter from any detected effects
if (g == this.currentGesture) {
if (this.sigma < DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING)
this.sigma++;
}
else {
if (g != this.currentGesture) {
this.currentGesture = g;
this.sigma = 0;
} else if (this.sigma < DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING) {
++this.sigma;
}
// If we've reached threshold, update our record and raise the relevant event...
if (this.currentGesture != this.lastGesture && this.sigma >= DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING) {
if (this.sigma >= DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING) {
this.enqueueCurrentGesture();
}
}
forceGesture(gesture: number) {
this.currentGesture = gesture;
this.enqueueCurrentGesture();
}
private enqueueCurrentGesture() {
if (this.currentGesture != this.lastGesture) {
this.lastGesture = this.currentGesture;
board().bus.queue(DAL.MICROBIT_ID_GESTURE, this.lastGesture);
}
}
forceGesture(g: number) {
this.sigma = DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING + 1;
this.setGesture(g);
}
/**
* Reads the X axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.