Arma3_Epoch/ACE3
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scale deltatime in accordance to acctime. Change velocity so that it isnt always pointing out the nose. Dont scale Acmd as much

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This commit is contained in:
Brandon Danyluk 2021-04-12 15:18:01 -06:00
parent 46abb93cb8
commit fca022a401
4 changed files with 18 additions and 11 deletions
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2
addons/missileguidance/XEH_PREP.hpp
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@ -31,7 +31,6 @@ PREP(attackProfile_JAV_TOP);
// Navigation Profiles
PREP(navigationType_proNav);
PREP(navigationType_simpleProNav);
PREP(navigationType_lineOfSight);
// Seeker search functions
@ -49,5 +48,4 @@ PREP(ahr_onFired);
// Navigation OnFired
PREP(proNav_onFired);
PREP(simpleProNav_onFired);

11
addons/missileguidance/functions/fnc_guidancePFH.sqf
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@ -18,8 +18,6 @@
BEGIN_COUNTER(guidancePFH);
#define TIMESTEP_FACTOR diag_deltaTime
params ["_args", "_pfID"];
_args params ["_firedEH", "_launchParams", "_flightParams", "_seekerParams", "_stateParams"];
_firedEH params ["_shooter","","","","_ammo","","_projectile"];
@ -31,6 +29,8 @@ if (!alive _projectile || isNull _projectile || isNull _shooter) exitWith {
END_COUNTER(guidancePFH);
};
private _timestep = diag_deltaTime * accTime;
_flightParams params ["_pitchRate", "_yawRate", "_isBangBangGuidance"];
// Run seeker function:
@ -45,7 +45,7 @@ private _projectilePos = getPosASLVisual _projectile;
// If there is no deflection on the missile, this cannot change and therefore is redundant. Avoid calculations for missiles without any deflection
if ((_pitchRate != 0 || {_yawRate != 0}) && {_profileAdjustedTargetPos isNotEqualTo [0,0,0]}) then {
private _navigationFunction = getText (configFile >> QGVAR(NavigationTypes) >> _navigationType >> "functionName");
private _commandedAcceleration = [_args, TIMESTEP_FACTOR, _seekerTargetPos, _profileAdjustedTargetPos] call (missionNamespace getVariable _navigationFunction);
private _commandedAcceleration = [_args, _timestep, _seekerTargetPos, _profileAdjustedTargetPos] call (missionNamespace getVariable _navigationFunction);
#ifdef DRAW_GUIDANCE_INFO
private _projectilePosAGL = ASLToAGL _projectilePos;
@ -81,13 +81,12 @@ if ((_pitchRate != 0 || {_yawRate != 0}) && {_profileAdjustedTargetPos isNotEqua
TRACE_9("pitch/yaw/roll",_pitch,_yaw,_roll,_yawChange,_pitchChange,_pitchRate,_yawRate,_clampedPitch,_clampedYaw);
_pitch = _pitch + _clampedPitch * TIMESTEP_FACTOR;
_yaw = _yaw + _clampedYaw * TIMESTEP_FACTOR;
_pitch = _pitch + _clampedPitch * _timestep;
_yaw = _yaw + _clampedYaw * _timestep;
TRACE_3("new pitch/yaw/roll",_pitch,_yaw,_roll);
[_projectile, _pitch, _yaw, 0] call FUNC(changeMissileDirection);
_projectile setVelocityModelSpace [0, vectorMagnitude velocity _projectile, 0];
_guidanceParameters set [0, _yaw];
_guidanceParameters set [2, _pitch];

12
addons/missileguidance/functions/fnc_navigationType_proNav.sqf
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@ -25,8 +25,10 @@ _lastMissileFrame params ["_lastTargetPosition", "_lastTargetVelocity", "_lastLi
private _projectileVelocity = velocity _projectile;
// integrate target velocity for realistic inference of velocity
private _targetVelocity = (_seekerTargetPos vectorDiff _lastTargetPosition) vectorMultiply (1 / _timestep);
private _targetAcceleration = (_targetVelocity vectorDiff _lastTargetVelocity) vectorMultiply (1 / _timestep);
private _targetVelocity = _lastTargetVelocity;
if (_timestep != 0) then {
_targetVelocity = (_seekerTargetPos vectorDiff _lastTargetPosition) vectorMultiply (1 / _timestep);
};
private _closingVelocity = _targetVelocity vectorDiff _projectileVelocity;
@ -35,7 +37,11 @@ private _lineOfSight = vectorNormalized (_profileAdjustedTargetPos vectorDiff ge
// the los rate is tiny, so we multiply by a constant of a power of ten to get more aggressive acceleration
// this is just due to how we measure our LOS delta, the vectors involved are _tiny_
private _losDelta = _lineOfSight vectorDiff _lastLineOfSight;
private _losRate = 1000 * (vectorMagnitude _losDelta) / _timestep;
private _losRate = if (_timestep == 0) then {
0
} else {
10 * (vectorMagnitude _losDelta) / _timestep;
};
private _lateralAcceleration = (_navigationGain * _losRate);
private _commandedAcceleration = _closingVelocity vectorMultiply _lateralAcceleration;

4
addons/missileguidance/todo.txt
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@ -28,3 +28,7 @@ Navigation Types:
Navigation States:
Todo
General To-Do:
Add more weapons
Fix GBU drag