altoslib: Start restructuring AltosState harder

Make per-packet code update state itself rather than having all state
updates done centrally. Will make adding new packet types easier.

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

1 files changed, 54 insertions, 0 deletions

diff --git a/altoslib/AltosTelemetryRecordMetrumData.java b/altoslib/AltosTelemetryRecordMetrumData.java
new file mode 100644
index 00000000..70179b28
--- /dev/null
+++ b/altoslib/AltosTelemetryRecordMetrumData.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright © 2011 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.altoslib_1;
+
+
+public class AltosTelemetryRecordMetrumData extends AltosTelemetryRecordRaw {
+
+	int	ground_pres;
+	int	ground_accel;
+	int	accel_plus_g;
+	int	accel_minus_g;
+
+	public AltosTelemetryRecordMetrumData(int[] in_bytes, int rssi) {
+		super(in_bytes, rssi);
+
+		ground_pres = int32(8);
+		ground_accel = int16(12);
+		accel_plus_g = int16(14);
+		accel_minus_g = int16(16);
+	}
+
+	public AltosRecord update_state(AltosRecord previous) {
+		AltosRecord	n = super.update_state(previous);
+
+		AltosRecordTM2	next;
+		if (!(n instanceof AltosRecordTM2)) {
+			next = new AltosRecordTM2(n);
+		} else {
+			next = (AltosRecordTM2) n;
+		}
+
+		next.ground_accel = ground_accel;
+		next.ground_pres = ground_pres;
+		next.accel_plus_g = accel_plus_g;
+		next.accel_minus_g = accel_minus_g;
+
+		return next;
+	}
+}