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- Skip testing tankers AGL as they are always high in the sky. Tune low AGL

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correction (better escape chances). Add carrier Vinson.
This commit is contained in:
abory 2009-05-24 16:45:40 +00:00
parent 33c4c40f26
commit ad0dfdb64d
2 changed files with 24 additions and 40 deletions
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63
Aircraft/Instruments-3d/radardist/radardist.nas
View file

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

1
Aircraft/Instruments-3d/radardist/radardist.xml
View file

@ -575,6 +575,7 @@ max. radar range target seize(RCS)m2, 4th root of radar RCS -->
<name>MPCarrier</name> <name>MPCarrier</name>
<name>mp-nimitz</name> <name>mp-nimitz</name>
<name>mp-eisenhower</name> <name>mp-eisenhower</name>
<name>mp-vinson</name>
<rcs-sq-meter>160000</rcs-sq-meter> <rcs-sq-meter>160000</rcs-sq-meter>
<rcs-4th-root>20</rcs-4th-root> <rcs-4th-root>20</rcs-4th-root>
<radar-type>SPS-49</radar-type> <radar-type>SPS-49</radar-type>