From 2e8a52198ddbfb8afa51dfaff95c1359146116f3 Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Sat, 20 Jul 2024 23:01:08 +0200
Subject: [PATCH] sixths: fix docs, adjust times for keeping the gps fix.

---
 apps/sixths/README.md     |  6 +++---
 apps/sixths/sixths.app.js | 10 ++++++++--
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/apps/sixths/README.md b/apps/sixths/README.md
index 18aa85beb..6f6638666 100644
--- a/apps/sixths/README.md
+++ b/apps/sixths/README.md
@@ -26,8 +26,8 @@ Useful gestures:
 
  B -- "Battery", show/buzz battery info
 D -- "Down", previous waypoint
-F -- "oFf", disable GPS.
-G -- "Gps", enable GPS for 4 hours in low power mode.
+F -- "turn oFf gps", disable GPS.
+T -- "Turn on gps", enable GPS for 4 hours in low power mode.
 I -- "Info", toggle info display
  L -- "aLtimeter", load altimeter app
 M -- "Mark", create mark from current position
@@ -35,7 +35,7 @@ N -- "Note", take a note and write it to the log.
  O -- "Orloj", run orloj app
  R -- "Run", run "runplus" app
 S -- "Speed", enable GPS for 30 minutes in high power mode.
- T -- "Time", buzz current time
+ G -- "Get time", buzz current time
 U -- "Up", next waypoint
 Y -- "compass", reset compass
 
diff --git a/apps/sixths/sixths.app.js b/apps/sixths/sixths.app.js
index f5ac5ef0b..93145db5b 100644
--- a/apps/sixths/sixths.app.js
+++ b/apps/sixths/sixths.app.js
@@ -22,7 +22,8 @@ var gps_on = 0, // time GPS was turned on
     last_restart = 0, last_pause = 0, last_fstart = 0; // utime
 var gps_needed = 0, // how long to wait for a fix
     gps_limit = 0, // timeout -- when to stop recording
-    gps_speed_limit = 0;
+    gps_speed_limit = 0,
+    keep_fix_for = 10;
 var prev_fix = null;
 var gps_dist = 0;
 
@@ -148,6 +149,11 @@ function gpsHandle() {
         if (!last_fstart)
           last_fstart = getTime();
         last_fix = getTime();
+        keep_fix_for = gps_needed / 3;
+        if (keep_fix_for < 10)
+          keep_fix_for = 10;
+        if (keep_fix_for > 3*60)
+          keep_fix_for = 3*60;
         gps_needed = 60;
       } else {
         if (last_fix)
@@ -164,7 +170,7 @@ function gpsHandle() {
       let d2 = (getTime()-last_fstart);
       print("gps on, restarted ", d, gps_needed, d2, fix.lat);
       if (getTime() > gps_speed_limit &&
-          (d > gps_needed || (last_fstart && d2 > 10))) {
+          (d > gps_needed || (last_fstart && d2 > keep_fix_for))) {
         gpsPause();
         gps_needed = gps_needed * 1.5;
         print("Pausing, next try", gps_needed);