altoslib: Clear sat data when tick changes

Sat data comes in multiple records, but the tick is always the same,
so use that to tell when the set of sats is new

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 7 insertions, 8 deletions

diff --git a/altoslib/AltosState.java b/altoslib/AltosState.java
index e874a498..e32a1fe5 100644
--- a/altoslib/AltosState.java
+++ b/altoslib/AltosState.java
@@ -464,7 +464,7 @@ public class AltosState implements Cloneable {
 
 	public AltosGPS	gps;
 	public AltosGPS	temp_gps;
-	public boolean	temp_gps_clear_sats_pending;
+	public int temp_gps_sat_tick;
 	public boolean	gps_pending;
 	public int gps_sequence;
 
@@ -558,7 +558,7 @@ public class AltosState implements Cloneable {
 
 		gps = null;
 		temp_gps = null;
-		temp_gps_clear_sats_pending = false;
+		temp_gps_sat_tick = 0;
 		gps_sequence = 0;
 		gps_pending = false;
 
@@ -653,7 +653,7 @@ public class AltosState implements Cloneable {
 			temp_gps = old.temp_gps.clone();
 		else
 			temp_gps = null;
-		temp_gps_clear_sats_pending = old.temp_gps_clear_sats_pending;
+		temp_gps_sat_tick = old.temp_gps_sat_tick;
 		gps_sequence = old.gps_sequence;
 		gps_pending = old.gps_pending;
 
@@ -973,11 +973,10 @@ public class AltosState implements Cloneable {
 			temp_gps = new AltosGPS(gps);
 		}
 		gps_pending = true;
-		if (!sats)
-			temp_gps_clear_sats_pending = true;
-		else if (temp_gps_clear_sats_pending) {
-			temp_gps.cc_gps_sat = null;
-			temp_gps_clear_sats_pending = false;
+		if (sats) {
+			if (tick != temp_gps_sat_tick)
+				temp_gps.cc_gps_sat = null;
+			temp_gps_sat_tick = tick;
 		}
 		return temp_gps;
 	}