Missileguidance - Update Javelin (#10030)

addons/missileguidance/CfgAmmo.hpp

@@ -70,9 +70,11 @@ class CfgAmmo {
         // Begin ACE guidance Configs
         class ADDON {
             enabled = 1;
-            minDeflection = 0.00005;      // Minium flap deflection for guidance
+
-            maxDeflection = 0.025;       // Maximum flap deflection for guidance
+            pitchRate = 100; // degrees per second
-            incDeflection = 0.00005;      // The incrmeent in which deflection adjusts.
+            yawRate = 100;
+            stabilityCoefficient = 0.2;
+            bangBangGuidance = 0;
 
             canVanillaLock = 0;
 
@@ -83,6 +85,11 @@ class CfgAmmo {
             defaultSeekerLockMode = "LOBL";
             seekerLockModes[] = { "LOBL" };
 
+            defaultNavigationType = "Direct";
+            navigationTypes[] = { "Direct", "ZeroEffortMiss" };
+
+            navigationGain = 3;
+
             seekerAngle = 180;           // Angle in front of the missile which can be searched
             seekerAccuracy = 1;         // seeker accuracy multiplier
 
@@ -95,6 +102,19 @@ class CfgAmmo {
             defaultAttackProfile = "JAV_TOP";
             attackProfiles[] = { "JAV_TOP", "JAV_DIR" };
             useModeForAttackProfile = 1;
+
+            class navigationStates {
+                class initial {
+                    transitionCondition = QFUNC(javelin_midCourseTransition);
+                    navigationType = "Direct";
+                };
+                class terminal {
+                    transitionCondition = "";
+                    navigationType = "ZeroEffortMiss";
+                };
+                // transitions from initial -> termimal
+                states[] = {"initial", "terminal"};
+            };
         };
     };
     class ACE_Javelin_FGM148_static: ACE_Javelin_FGM148 {

addons/missileguidance/XEH_PREP.hpp

@@ -32,6 +32,7 @@ PREP(attackProfile_BEAM);
 // Javelin profiles
 PREP(attackProfile_JAV_DIR);
 PREP(attackProfile_JAV_TOP);
+PREP(javelin_midCourseTransition);
 
 // Navigation Profiles
 PREP(navigationType_zeroEffortMiss);

addons/missileguidance/functions/fnc_attackProfile_JAV_DIR.sqf

@@ -47,7 +47,7 @@ private _returnTargetPos = _seekerTargetPos;
 switch (_attackProfileStateParams select 0) do {
     case STAGE_LAUNCH: {
         TRACE_1("STAGE_LAUNCH","");
-        if (_distanceToShooter < 10) then {
+        if (_distanceToShooter < 6) then {
             _returnTargetPos = _seekerTargetPos vectorAdd [0,0,_distanceToTarget*2];
         } else {
             _attackProfileStateParams set [0, STAGE_CLIMB];
@@ -55,7 +55,8 @@ switch (_attackProfileStateParams select 0) do {
     };
     case STAGE_CLIMB: {
         TRACE_1("STAGE_CLIMB","");
-       private _cruisAlt = 60 * (_distanceShooterToTarget/2000);
+        // 65 is min range
+       private _cruisAlt = 60 * ((0 max (_distanceShooterToTarget - 65))/2000);
 
         if ( ((ASLToAGL _projectilePos) select 2) - ((ASLToAGL _seekerTargetPos) select 2) >= _cruisAlt) then {
             _attackProfileStateParams set [0, STAGE_TERMINAL];

addons/missileguidance/functions/fnc_attackProfile_JAV_TOP.sqf

@@ -57,7 +57,7 @@ switch( (_attackProfileStateParams select 0) ) do {
         TRACE_1("STAGE_CLIMB","");
         private _cruisAlt = 140;
         if (_distanceShooterToTarget < 1250) then {
-            _cruisAlt = 140 * (_distanceShooterToTarget/1250);
+            _cruisAlt = 140 * ((0 max (_distanceShooterToTarget - 150))/1250);
             TRACE_1("_cruisAlt",_cruisAlt);
         };
         if ( ((ASLToAGL _projectilePos) select 2) - ((ASLToAGL _seekerTargetPos) select 2) >= _cruisAlt) then {

addons/missileguidance/functions/fnc_javelin_midCourseTransition.sqf

@@ -0,0 +1,33 @@
+#include "..\script_component.hpp"
+/*
+ * Author: tcvm
+ * Condition to switch to next navigation profile
+ *
+ * Arguments:
+ * Guidance Arg Array <ARRAY>
+ *
+ * Return Value:
+ * None
+ *
+ * Example:
+ * [] call ace_missileguidance_fnc_javelin_midCourseTransition
+ *
+ * Public: No
+ */
+#define STAGE_LAUNCH 1
+#define STAGE_CLIMB 2
+#define STAGE_COAST 3
+#define STAGE_TERMINAL 4
+
+_args params ["_firedEH", "_launchParams", "_flightParams", "_seekerParams", "_stateParams", "_targetData", "_navigationStateData"];
+_firedEH params ["_shooter","","","","_ammo","","_projectile"];
+_launchParams params ["_shooter","_targetLaunchParams","_seekerType","_attackProfile","_lockMode","_laserInfo","_navigationType"];
+_targetLaunchParams params ["_target", "_targetPos", "_launchPos", "_launchDir", "_launchTime"];
+_flightParams params ["_pitchRate", "_yawRate", "_isBangBangGuidance"];
+_stateParams params ["_lastRunTime", "_seekerStateParams", "_attackProfileStateParams", "_lastKnownPosState","_navigationParams", "_guidanceParameters"];
+_seekerParams params ["_seekerAngle", "_seekerAccuracy", "_seekerMaxRange", "_seekerMinRange"];
+_targetData params ["_targetDirection", "_attackProfileDirection", "_targetRange", "_targetVelocity", "_targetAcceleration"];
+
+_attackProfileStateParams params ["_state"];
+_state isEqualTo STAGE_TERMINAL
+