- Skip testing tankers AGL as they are always high in the sky. Tune low AGL
correction (better escape chances). Add carrier Vinson.
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abory
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33c4c40f26
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2 changed files with 24 additions and 40 deletions
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@ -13,7 +13,6 @@
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# Returns 1 if detectable, 0 if not. Should be called from your own aircraft
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# radar stuff too.
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var data_path = getprop("/sim/fg-root") ~ "/Aircraft/Instruments-3d/radardist/radardist.xml";
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var aircraftData = {};
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var radarData = [];
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@ -42,13 +41,9 @@ var radar_range = nil;
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var radar_area = nil;
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var have_radar = nil;
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var FT2M = 0.3048;
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var NM2KM = 1.852;
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var my_maxrange = func(a) {
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max_range = 0;
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radar_range = 0;
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@ -62,10 +57,6 @@ var my_maxrange = func(a) {
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if ( radar_area > 0 ) { max_range = radar_range / radar_area }
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}
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}
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#var plane = radarData[acname][2];
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#print ("aircraft = " ~ plane);
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#print ("range = " ~ radar_range);
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#print ("aera = " ~ radar_area);
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return( max_range );
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}
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@ -83,7 +74,6 @@ var get_aircraft_name = func( t ) {
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mpnode_string = t;
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mpnode = props.globals.getNode(mpnode_string);
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if ( find("tanker", mpnode_string) > 0 ) {
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#print("tanker");
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cutname = "KC135";
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} else {
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mpname_node_string = mpnode_string ~ "/sim/model/path";
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@ -95,7 +85,7 @@ var get_aircraft_name = func( t ) {
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splitname = split("/", mpname);
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cutname = splitname[1];
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#print( mpname_node_string ~ " " ~ cutname );
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}
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return( cutname );
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}
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@ -108,7 +98,6 @@ var radis = func(t, my_radarcorr) {
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acname = aircraftData[cutname];
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if ( acname == nil ) { acname = 0 }
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rcs_4r = radarData[acname][3];
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#radartype = radarData[acname][1];
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# Add a correction factor for altitude, as lower alt means
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# shorter radar distance (due to air turbulence).
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@ -119,47 +108,42 @@ var radis = func(t, my_radarcorr) {
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} elsif ((alt_ac > 1000) and (alt_ac <= 5000)) {
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alt_corr = 0.8;
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}
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# Add a correction factor for altitude AGL.
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# Add a correction factor for altitude AGL. Skip if AI tanker.
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agl_corr = 1;
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mp_lon = mpnode.getNode("position/longitude-deg").getValue();
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mp_lat = mpnode.getNode("position/latitude-deg").getValue();
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pos_elev = geo.elevation(mp_lat, mp_lon);
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if (pos_elev != nil) {
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mp_agl = alt_ac - ( pos_elev / FT2M );
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if (mp_agl <= 20) {
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agl_corr = 0.03;
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} elsif ((mp_agl > 20) and (mp_agl <= 50)) {
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agl_corr = 0.08;
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} elsif ((mp_agl > 50) and (mp_agl <= 120)) {
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agl_corr = 0.25;
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} elsif ((mp_agl > 120) and (mp_agl <= 300)) {
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agl_corr = 0.4;
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} elsif ((mp_agl > 300) and (mp_agl <= 600)) {
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agl_corr = 0.7;
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} elsif ((mp_agl > 600) and (mp_agl <= 1000)) {
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agl_corr = 0.85;
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if ( find("tanker", t) == 0 ) {
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mp_lon = mpnode.getNode("position/longitude-deg").getValue();
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pos_elev = geo.elevation(mp_lat, mp_lon);
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if (pos_elev != nil) {
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mp_agl = alt_ac - ( pos_elev / FT2M );
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if (mp_agl <= 40) {
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agl_corr = 0.03;
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} elsif ((mp_agl > 40) and (mp_agl <= 80)) {
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agl_corr = 0.07;
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} elsif ((mp_agl > 80) and (mp_agl <= 120)) {
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agl_corr = 0.25;
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} elsif ((mp_agl > 120) and (mp_agl <= 300)) {
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agl_corr = 0.4;
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} elsif ((mp_agl > 300) and (mp_agl <= 600)) {
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agl_corr = 0.7;
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} elsif ((mp_agl > 600) and (mp_agl <= 1000)) {
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agl_corr = 0.85;
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}
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}
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}
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# Calculate the detection distance for this multiplayer.
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det_range = my_radarcorr * rcs_4r * alt_corr * agl_corr / NM2KM;
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#print (radartype);
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#print (rcs_4r);
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### Compare if aircraft is in detection range and return.
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# Compare if aircraft is in detection range and return.
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act_range = mpnode.getNode("radar/range-nm").getValue() or 500;
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#print (det_range ~ " " ~ act_range);
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if (det_range >= act_range) {
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#print("paint it");
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return(1);
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}
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return(0);
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}
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var radar_horizon = func(our_alt_ft, target_alt_ft) {
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if (our_alt_ft < 0 or our_alt_ft == nil) { our_alt_ft = 0 }
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if (target_alt_ft < 0 or target_alt_ft == nil) { target_alt_ft = 0 }
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if (our_alt_ft < 0 or our_alt_ft == nil) { our_alt_ft = 0 }
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if (target_alt_ft < 0 or target_alt_ft == nil) { target_alt_ft = 0 }
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return( 2.2 * ( math.sqrt(our_alt_ft * FT2M) + math.sqrt(target_alt_ft * FT2M) ) );
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}
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@ -184,7 +168,6 @@ var load_data = func {
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foreach( var n; aircraft_names) {
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if ( n.getName() == "name") {
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aircraftData[n.getValue()] = index;
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#print(n.getValue() ~ " : " ~ index);
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}
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}
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var t_list = [
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@ -575,6 +575,7 @@ max. radar range target seize(RCS)m2, 4th root of radar RCS -->
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<name>MPCarrier</name>
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<name>mp-nimitz</name>
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<name>mp-eisenhower</name>
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<name>mp-vinson</name>
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<rcs-sq-meter>160000</rcs-sq-meter>
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<rcs-4th-root>20</rcs-4th-root>
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<radar-type>SPS-49</radar-type>
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