Merge pull request #70 from legoboyvdlp/save

Implementing state save between sessions

A320-main.xml

@@ -1926,6 +1926,9 @@
 			<file>Aircraft/A320-family/gui/dialogs/refuel.nas</file>
 			<file>Aircraft/A320-family/gui/dialogs/rmp.nas</file>
 		</Dialogs>
+		<save>
+			<file>Aircraft/A320-family/Nasal/Systems/save.nas</file>
+		</save>
 	</nasal>
 
 </PropertyList>

AircraftConfig/acconfig.nas

@@ -96,6 +96,7 @@ setprop("systems/acconfig/options/weight-kgs", 0);
 setprop("systems/acconfig/options/adirs-skip", 0);
 setprop("systems/acconfig/options/welcome-skip", 0);
 setprop("systems/acconfig/options/no-rendering-warn", 0);
+setprop("systems/acconfig/options/save-state", 0);
 setprop("systems/acconfig/options/pfd-rate", 1);
 setprop("systems/acconfig/options/nd-rate", 1);
 setprop("systems/acconfig/options/uecam-rate", 1);
@@ -187,9 +188,17 @@ setlistener("/sim/signals/fdm-initialized", func {
 	}
 	setprop("systems/acconfig/options/revision", current_revision);
 	writeSettings();
+	if (getprop("options/system/save-state") == 1)
+	{
+		save.restore(save.default, getprop("/sim/fg-home") ~ "/Export/" ~ getprop("/sim/aircraft") ~ "-save.xml");
+	}
 	spinning.stop();
 });
 
+setlistener("/sim/signals/exit", func {
+	save.save(save.default, getprop("/sim/fg-home") ~ "/Export/" ~ getprop("/sim/aircraft") ~ "-save.xml");
+});
+
 var renderingSettings = {
 	check: func() {
 		var rembrandt = getprop("sim/rendering/rembrandt/enabled");
@@ -223,6 +232,7 @@ var readSettings = func {
 	io.read_properties(getprop("sim/fg-home") ~ "/Export/A320-family-config.xml", "/systems/acconfig/options");
 	setprop("options/system/keyboard-mode", getprop("systems/acconfig/options/keyboard-mode"));
 	setprop("options/system/weight-kgs", getprop("systems/acconfig/options/weight-kgs"));
+	setprop("options/system/save-state", getprop("systems/acconfig/options/save-state"));
 	setprop("controls/adirs/skip", getprop("systems/acconfig/options/adirs-skip"));
 	setprop("sim/model/autopush/route/show", getprop("systems/acconfig/options/autopush/show-route"));
 	setprop("sim/model/autopush/route/show-wingtip", getprop("systems/acconfig/options/autopush/show-wingtip"));
@@ -232,6 +242,7 @@ var readSettings = func {
 var writeSettings = func {
 	setprop("systems/acconfig/options/keyboard-mode", getprop("options/system/keyboard-mode"));
 	setprop("systems/acconfig/options/weight-kgs", getprop("options/system/weight-kgs"));
+	setprop("systems/acconfig/options/save-state", getprop("options/system/save-state"));
 	setprop("systems/acconfig/options/adirs-skip", getprop("controls/adirs/skip"));
 	setprop("systems/acconfig/options/autopush/show-route", getprop("sim/model/autopush/route/show"));
 	setprop("systems/acconfig/options/autopush/show-wingtip", getprop("sim/model/autopush/route/show-wingtip"));

AircraftConfig/main.xml

@@ -426,6 +426,27 @@
 				</binding>
 				<live>true</live>
 			</checkbox>
+
+			<checkbox>
+				<!-- TODO there might be a better way to formulate this. -->
+				<label>Save states between sessions</label>
+				<halign>left</halign>
+				<property>/systems/acconfig/options/save-state</property>
+				<binding>
+					<command>property-toggle</command>
+					<property>/options/system/save-state</property>
+				</binding>
+				<binding>
+					<command>dialog-apply</command>
+				</binding>
+				<binding>
+					<command>nasal</command>
+					<script>
+					acconfig.writeSettings();
+					</script>
+				</binding>
+				<live>true</live>
+			</checkbox>
 			
 			<group>
 				<layout>hbox</layout>

Nasal/Systems/save.nas

@@ -0,0 +1,74 @@
+# Copyright (C) 2020 Merspieler, merspieler _at_ airmail.cc
+#
+# 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; either version 3 of the
+# License, or (at your option) any later version.
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+# Save and restore properties between sessions
+
+# To add more properties to autosave, just add them here.
+var default = [
+	# CONSUMABLES
+	# Fuel
+	"/consumables/fuel/tank[0]/level-lbs",
+	"/consumables/fuel/tank[1]/level-lbs",
+	"/consumables/fuel/tank[2]/level-lbs",
+	"/consumables/fuel/tank[3]/level-lbs",
+	"/consumables/fuel/tank[4]/level-lbs",
+	# CONTROLS
+	# rmp
+	"/controls/radio/rmp[0]/on",
+	"/controls/radio/rmp[1]/on",
+	"/controls/radio/rmp[2]/on",
+	# efis
+	"/instrumentation/efis[0]/inputs/range-nm",
+	"/instrumentation/efis[0]/nd/display-mode",
+	"/instrumentation/efis[0]/input/lh-vor-adf",
+	"/instrumentation/efis[0]/input/rh-vor-adf",
+	"/instrumentation/efis[1]/inputs/range-nm",
+	"/instrumentation/efis[1]/nd/display-mode",
+	"/instrumentation/efis[1]/input/lh-vor-adf",
+	"/instrumentation/efis[1]/input/rh-vor-adf",
+	# parking brake
+	"/controls/gear/brake-parking"
+];
+
+var save = func (saved_props, file) {
+	print("Saving state...");
+	for (var i = 0; i < size(saved_props); i += 1)
+	{
+		setprop("/save" ~ saved_props[i], getprop(saved_props[i]));
+	}
+
+	var saveNode = props.globals.getNode("/save", 0);
+
+	io.write_properties(file, saveNode);
+	print("State saved");
+}
+
+var restore = func (saved_props, file) {
+	print("Loading saved state...");
+	var readNode = props.globals.initNode("/save", );
+
+	io.read_properties(file, readNode);
+
+	for (var i = 0; i < size(saved_props); i += 1)
+	{
+		var val = getprop("/save" ~ saved_props[i]);
+		if (val != nil)
+		{
+			setprop(saved_props[i], val);
+		}
+	}
+	print("Saved state loaded");
+}