oprf_assets/missile-frigate/Models/missile_frigate.xml

<?xml version="1.0"?>

<PropertyList>
<description>USS SanAntonio</description>
	<author>Naval Postgraduate School SAVAGE project, Vivian Meazza, Heiko Schulz</author>
	<status>early-production</status>
 <path>LPD17.ac</path>
 <nasal>
    <load><![CDATA[
        var wind_node = props.globals.getNode("/environment/wind-speed-kt");
        var time_node = props.globals.getNode("/sim/time/elapsed-sec");
        var roll_node = props.globals.getNode("/ai/models/LPD17-boats/roll");
        var pitch_node = props.globals.getNode("/ai/models/LPD17-boats/pitch");
        var loopid = 1;
        var loop = func(id) {
            if (id != loopid) return;

            var rollcyclesec = 40.55;
            var pitchcyclesec = 40.08;

            var rolltimer = time_node.getValue()/rollcyclesec - int(time_node.getValue()/rollcyclesec);
            var rollwave = math.sin(2*math.pi*rolltimer);
            roll_node.setValue(rollwave*(wind_node.getValue()+1));

            var pitchtimer = (time_node.getValue()+1)/pitchcyclesec - int((time_node.getValue()+1)/pitchcyclesec);
            var pitchwave = math.sin(2*math.pi*pitchtimer);
            pitch_node.setValue(pitchwave*(wind_node.getValue()+1));
            
            settimer(func { loop(id); }, 0);
        }
        settimer(func { loop(loopid); }, 0);

                var self = cmdarg();


        var skip = 0;
        var lat = self.getNode("rotors/main/blade[0]/flap-deg");
        var lon = self.getNode("rotors/main/blade[1]/flap-deg");
        var alt = self.getNode("rotors/main/blade[2]/flap-deg");
        if (alt == nil or alt.getValue() == nil) {
          skip = 1;
        }

        var objs = {};

        var loop = func () {          

          if(alt.getValue() != 0) {
            var objModel = objs["first"];
            if (objModel == nil) {
              # create model
              #print("creating missile");
              var n = props.globals.getNode("models", 1);
              var i = 0;
              for (i = 0; 1==1; i += 1) {
                if (n.getChild("model", i, 0) == nil) {
                  break;
                }
              }
              objModel = n.getChild("model", i, 1);

              objModel.getNode("elevation",1).setDoubleValue(0);
              objModel.getNode("latitude",1).setDoubleValue(0);
              objModel.getNode("longitude",1).setDoubleValue(0);
              objModel.getNode("elevation-ft-prop",1).setValue(objModel.getPath()~"/elevation");
              objModel.getNode("latitude-deg-prop",1).setValue(objModel.getPath()~"/latitude");
              objModel.getNode("longitude-deg-prop",1).setValue(objModel.getPath()~"/longitude");
              objModel.getNode("heading-deg",1).setDoubleValue(0);
              objModel.getNode("pitch-deg",1).setDoubleValue(0);
              objModel.getNode("roll-deg",1).setDoubleValue(0);
              objModel.getNode("path",1).setValue("Aircraft/JA37/Models/Armament/Weapons/MP_missile/mp_missile.xml");

              var loadNode = objModel.getNode("load", 1);
              loadNode.setBoolValue(1);

              objs["first"] = objModel;
              loadNode.remove();
            }
          }
          var exist = 0;
          if(alt.getValue() != 0) {
            exist = 1;

            var objModel = objs["first"];
            if (objModel == nil) {
              print("error: did not find mp missile.");
              return;
            }# else {
            #  print("found a missile!");
            #}
            objModel.getNode("latitude").setDoubleValue(lat.getValue());
            objModel.getNode("longitude").setDoubleValue(lon.getValue());
            objModel.getNode("elevation").setDoubleValue(alt.getValue()*M2FT);

          }
          if (exist == 0) {
            # remove model
            var objModel = objs["first"];
            if (objModel != nil) {
              objModel.remove();
              delete(objs, "first");
            }
          }

          if (self.getNode("valid") == 0 or self.getNode("valid") == nil) {
            return;
          }
          settimer(loop, 0.05);
        }

        if (skip == 0) {
            loop();
        }
        ]]>
    </load>
    <unload>
       loopid += 1;
    </unload>
</nasal>

 <animation>
  <type>rotate</type>
  <object-name>ShapeIndexedFaceS.005</object-name>
  <object-name>ShapeIndexedFaceS.004</object-name>
  <object-name>ShapeIndexedFaceS.002</object-name>
  <object-name>ShapeIndexedFaceS</object-name>
   <object-name>ShapeIndexedFaceSet</object-name>
   <object-name>ShapeIndexedFaceS.001</object-name>
   <object-name>ShapeIndexedFaceS.006</object-name>
   <object-name>ShapeIndexedFaceS.007</object-name>
  <property>/ai/models/LPD17-boats/roll</property>
  <factor>0.02</factor>
  <axis>
   <x>0</x>
   <y>1</y>
   <z>0</z>
  </axis>
</animation>

<animation>
  <type>rotate</type>
  <object-name>ShapeIndexedFaceS.005</object-name>
  <object-name>ShapeIndexedFaceS.004</object-name>
  <object-name>ShapeIndexedFaceS.002</object-name>
  <object-name>ShapeIndexedFaceS</object-name>
   <object-name>ShapeIndexedFaceSet</object-name>
   <object-name>ShapeIndexedFaceS.001</object-name>
   <object-name>ShapeIndexedFaceS.006</object-name>
   <object-name>ShapeIndexedFaceS.007</object-name>
  <property>/ai/models/LPD17-boats/pitch</property>
  <factor>0.0025</factor>
  <axis>
   <x>1</x>
   <y>0</y>
   <z>0</z>
  </axis>
</animation>

<animation>
  <type>textranslate</type>
  <object-name>rect</object-name>
 <property>/sim/time/elapsed-sec</property>
  <factor>-0.010</factor>
    <axis>
   <x>1</x>
   <y>0</y>
   <z>0</z>
  </axis>
 </animation>
 
 <animation>
<type>rotate</type>
 <object-name>ShapeIndexedFaceS.007</object-name>
<property>surface-positions/elevators-pos-norm</property>
<factor>-90.0</factor>
<center>
			<x-m>94.936</x-m>
			<y-m>0.00</y-m>
			<z-m>3.968</z-m>
		</center>
		<axis>
			<x>0</x>
			<y>1</y>
			<z>0</z>
		</axis>
</animation>

<animation>
<type>rotate</type>
 <object-name>ShapeIndexedFaceS.006</object-name>
<property>surface-positions/elevators-pos-norm</property>
<factor>90.0</factor>
<center>
			<x-m>93.243</x-m>
			<y-m>0.00</y-m>
			<z-m>-6.464</z-m>
		</center>
		<axis>
			<x>0</x>
			<y>1</y>
			<z>0</z>
		</axis>
</animation>
 
 <model>
    <path>Aircraft/missile-frigate/Models/smoke.xml</path>
    <offsets>
      <x-m>1.2</x-m>
            <y-m>0.00</y-m>
            <z-m>-0.68</z-m>
      <pitch-deg>0</pitch-deg>
    </offsets>
  </model>

</PropertyList>