//------------------------------------------------------------------------------
// Purpose :
// Input :
// Output :
//------------------------------------------------------------------------------
void CNPC_CombineDropship::Hunt( void )
{
// If we have a pickup target, fly to it
if ( m_hPickupTarget )
{
UpdatePickupNavigation();
}
else if ( m_iLandState == LANDING_NO )
{
UpdateTrackNavigation();
}
// look for enemy
GetSenses()->Look( 4092 );
ChooseEnemy();
// don't face player ever, only face nav points
Vector desiredDir = GetDesiredPosition() - GetAbsOrigin();
VectorNormalize( desiredDir );
// Face our desired position.
m_vecDesiredFaceDir = desiredDir;
Flight();
UpdatePlayerDopplerShift( );
}
//------------------------------------------------------------------------------
// Updates the facing direction
//------------------------------------------------------------------------------
void CBaseHelicopter::UpdateFacingDirection()
{
if ( 1 )
{
Vector targetDir = m_vecTargetPosition - GetAbsOrigin();
Vector desiredDir = GetDesiredPosition() - GetAbsOrigin();
VectorNormalize( targetDir );
VectorNormalize( desiredDir );
if ( !IsCrashing() && m_flLastSeen + 5 > gpGlobals->curtime ) //&& DotProduct( targetDir, desiredDir) > 0.25)
{
// If we've seen the target recently, face the target.
//Msg( "Facing Target \n" );
m_vecDesiredFaceDir = targetDir;
}
else
{
// Face our desired position.
// Msg( "Facing Position\n" );
m_vecDesiredFaceDir = desiredDir;
}
}
else
{
// Face the way the path corner tells us to.
//Msg( "Facing my path corner\n" );
m_vecDesiredFaceDir = GetGoalOrientation();
}
}
//-----------------------------------------------------------------------------
// Purpose: Override base class to add display of fly direction
// Input :
// Output :
//-----------------------------------------------------------------------------
void CBaseHelicopter::DrawDebugGeometryOverlays(void)
{
if (m_pfnThink!= NULL)
{
// ------------------------------
// Draw route if requested
// ------------------------------
if (m_debugOverlays & OVERLAY_NPC_ROUTE_BIT)
{
NDebugOverlay::Line(GetAbsOrigin(), GetDesiredPosition(), 0,0,255, true, 0);
}
}
BaseClass::DrawDebugGeometryOverlays();
}
//------------------------------------------------------------------------------
// Updates the enemy
//------------------------------------------------------------------------------
void CBaseHelicopter::UpdateEnemy()
{
if( HasCondition( COND_ENEMY_DEAD ) )
{
SetEnemy( NULL );
}
// Look for my best enemy. If I change enemies,
// be sure and change my prevseen/lastseen timers.
if( m_lifeState == LIFE_ALIVE )
{
GetSenses()->Look( (int)EnemySearchDistance() );
GetEnemies()->RefreshMemories();
ChooseEnemy();
if( HasEnemy() )
{
CBaseEntity *pEnemy = GetEnemy();
GatherEnemyConditions( pEnemy );
if ( FVisible( pEnemy ) )
{
if (m_flLastSeen < gpGlobals->curtime - 2)
{
m_flPrevSeen = gpGlobals->curtime;
}
m_flLastSeen = gpGlobals->curtime;
m_vecTargetPosition = pEnemy->WorldSpaceCenter();
}
}
else
{
// look at where we're going instead
m_vecTargetPosition = GetDesiredPosition();
}
}
else
{
// If we're dead or dying, forget our enemy and don't look for new ones(sjb)
SetEnemy( NULL );
}
}
//-----------------------------------------------------------------------------
// Computes the actual position to fly to
//-----------------------------------------------------------------------------
void CBaseHelicopter::ComputeActualTargetPosition( float flSpeed, float flTime, float flPerpDist, Vector *pDest, bool bApplyNoise )
{
// This is used to make the helicopter drift around a bit.
if ( bApplyNoise && m_flRandomOffsetTime <= gpGlobals->curtime )
{
m_vecRandomOffset.Random( -25.0f, 25.0f );
m_flRandomOffsetTime = gpGlobals->curtime + 1.0f;
}
if ( IsLeading() && GetEnemy() && IsOnPathTrack() )
{
ComputePointAlongCurrentPath( flSpeed * flTime, flPerpDist, pDest );
*pDest += m_vecRandomOffset;
return;
}
*pDest = GetDesiredPosition() - GetAbsOrigin();
float flDistToDesired = pDest->Length();
if (flDistToDesired > flSpeed * flTime)
{
float scale = flSpeed * flTime / flDistToDesired;
*pDest *= scale;
}
else if ( IsOnPathTrack() )
{
// Blend in a fake destination point based on the dest velocity
Vector vecDestVelocity;
ComputeNormalizedDestVelocity( &vecDestVelocity );
vecDestVelocity *= flSpeed;
float flBlendFactor = 1.0f - flDistToDesired / (flSpeed * flTime);
VectorMA( *pDest, flTime * flBlendFactor, vecDestVelocity, *pDest );
}
*pDest += GetAbsOrigin();
if ( bApplyNoise )
{
// ComputePointAlongCurrentPath( flSpeed * flTime, flPerpDist, pDest );
*pDest += m_vecRandomOffset;
}
}
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
void CBaseHelicopter::Flight( void )
{
if( GetFlags() & FL_ONGROUND )
{
//This would be really bad.
SetGroundEntity( NULL );
}
// Generic speed up
if (m_flGoalSpeed < GetMaxSpeed())
{
m_flGoalSpeed += GetAcceleration();
}
//NDebugOverlay::Line(GetAbsOrigin(), m_vecDesiredPosition, 0,0,255, true, 0.1);
// tilt model 5 degrees (why?! sjb)
QAngle vecAdj = QAngle( 5.0, 0, 0 );
// estimate where I'll be facing in one seconds
Vector forward, right, up;
AngleVectors( GetLocalAngles() + GetLocalAngularVelocity() * 2 + vecAdj, &forward, &right, &up );
// Vector vecEst1 = GetLocalOrigin() + GetAbsVelocity() + up * m_flForce - Vector( 0, 0, 384 );
// float flSide = DotProduct( m_vecDesiredPosition - vecEst1, right );
QAngle angVel = GetLocalAngularVelocity();
float flSide = DotProduct( m_vecDesiredFaceDir, right );
if (flSide < 0)
{
if (angVel.y < 60)
{
angVel.y += 8;
}
}
else
{
if (angVel.y > -60)
{
angVel.y -= 8;
}
}
angVel.y *= ( 0.98 ); // why?! (sjb)
// estimate where I'll be in two seconds
AngleVectors( GetLocalAngles() + angVel * 1 + vecAdj, NULL, NULL, &up );
Vector vecEst = GetAbsOrigin() + GetAbsVelocity() * 2.0 + up * m_flForce * 20 - Vector( 0, 0, 384 * 2 );
// add immediate force
AngleVectors( GetLocalAngles() + vecAdj, &forward, &right, &up );
Vector vecImpulse( 0, 0, 0 );
vecImpulse.x += up.x * m_flForce;
vecImpulse.y += up.y * m_flForce;
vecImpulse.z += up.z * m_flForce;
// add gravity
vecImpulse.z -= 38.4; // 32ft/sec
ApplyAbsVelocityImpulse( vecImpulse );
float flSpeed = GetAbsVelocity().Length();
float flDir = DotProduct( Vector( forward.x, forward.y, 0 ), Vector( GetAbsVelocity().x, GetAbsVelocity().y, 0 ) );
if (flDir < 0)
{
flSpeed = -flSpeed;
}
float flDist = DotProduct( GetDesiredPosition() - vecEst, forward );
// float flSlip = DotProduct( GetAbsVelocity(), right );
float flSlip = -DotProduct( GetDesiredPosition() - vecEst, right );
// fly sideways
if (flSlip > 0)
{
if (GetLocalAngles().z > -30 && angVel.z > -15)
angVel.z -= 4;
else
angVel.z += 2;
}
else
{
if (GetLocalAngles().z < 30 && angVel.z < 15)
angVel.z += 4;
else
angVel.z -= 2;
}
// These functions contain code Ken wrote that used to be right here as part of the flight model,
// but we want different helicopter vehicles to have different drag characteristics, so I made
// them virtual functions (sjb)
ApplySidewaysDrag( right );
ApplyGeneralDrag();
// apply power to stay correct height
// FIXME: these need to be per class variables
#define MAX_FORCE 80
#define FORCE_POSDELTA 12
#define FORCE_NEGDELTA 8
if (m_flForce < MAX_FORCE && vecEst.z < GetDesiredPosition().z)
{
m_flForce += FORCE_POSDELTA;
}
else if (m_flForce > 30)
{
if (vecEst.z > GetDesiredPosition().z)
m_flForce -= FORCE_NEGDELTA;
}
// pitch forward or back to get to target
//-----------------------------------------
// Pitch is reversed since Half-Life! (sjb)
//-----------------------------------------
if (flDist > 0 && flSpeed < m_flGoalSpeed /* && flSpeed < flDist */ && GetLocalAngles().x + angVel.x < 40)
{
// ALERT( at_console, "F " );
// lean forward
angVel.x += 12.0;
}
else if (flDist < 0 && flSpeed > -50 && GetLocalAngles().x + angVel.x > -20)
{
// ALERT( at_console, "B " );
// lean backward
angVel.x -= 12.0;
}
else if (GetLocalAngles().x + angVel.x < 0)
{
// ALERT( at_console, "f " );
angVel.x += 4.0;
}
else if (GetLocalAngles().x + angVel.x > 0)
{
// ALERT( at_console, "b " );
angVel.x -= 4.0;
}
SetLocalAngularVelocity( angVel );
// ALERT( at_console, "%.0f %.0f : %.0f %.0f : %.0f %.0f : %.0f\n", GetAbsOrigin().x, GetAbsVelocity().x, flDist, flSpeed, GetLocalAngles().x, m_vecAngVelocity.x, m_flForce );
// ALERT( at_console, "%.0f %.0f : %.0f %0.f : %.0f\n", GetAbsOrigin().z, GetAbsVelocity().z, vecEst.z, m_vecDesiredPosition.z, m_flForce );
}
//------------------------------------------------------------------------------
// Purpose :
// Input :
// Output :
//------------------------------------------------------------------------------
void CBaseHelicopter::Hunt( void )
{
UpdateTrackNavigation( );
if( HasCondition( COND_ENEMY_DEAD ) )
{
SetEnemy( NULL );
}
// Look for my best enemy. If I change enemies,
// be sure and change my prevseen/lastseen timers.
if( m_lifeState == LIFE_ALIVE )
{
GetSenses()->Look( 4092 );
GetEnemies()->RefreshMemories();
ChooseEnemy();
if( HasEnemy() )
{
GatherEnemyConditions( GetEnemy() );
if (FVisible( GetEnemy() ))
{
if (m_flLastSeen < gpGlobals->curtime - 2)
{
m_flPrevSeen = gpGlobals->curtime;
}
m_flLastSeen = gpGlobals->curtime;
m_vecTargetPosition = GetEnemy()->WorldSpaceCenter();
}
}
else
{
// look at where we're going instead
m_vecTargetPosition = GetDesiredPosition();
}
}
else
{
// If we're dead or dying, forget our enemy and don't look for new ones(sjb)
SetEnemy( NULL );
}
if ( 1 )
{
Vector targetDir = m_vecTargetPosition - GetAbsOrigin();
Vector desiredDir = GetDesiredPosition() - GetAbsOrigin();
VectorNormalize( targetDir );
VectorNormalize( desiredDir );
if ( !IsCrashing() && m_flLastSeen + 5 > gpGlobals->curtime ) //&& DotProduct( targetDir, desiredDir) > 0.25)
{
// If we've seen the target recently, face the target.
//Msg( "Facing Target \n" );
m_vecDesiredFaceDir = targetDir;
}
else
{
// Face our desired position.
// Msg( "Facing Position\n" );
m_vecDesiredFaceDir = desiredDir;
}
}
else
{
// Face the way the path corner tells us to.
//Msg( "Facing my path corner\n" );
m_vecDesiredFaceDir = GetGoalOrientation();
}
Flight();
UpdatePlayerDopplerShift( );
// ALERT( at_console, "%.0f %.0f %.0f\n", gpGlobals->curtime, m_flLastSeen, m_flPrevSeen );
if (m_fHelicopterFlags & BITS_HELICOPTER_GUN_ON)
{
//if ( (m_flLastSeen + 1 > gpGlobals->curtime) && (m_flPrevSeen + 2 < gpGlobals->curtime) )
{
if (FireGun( ))
{
// slow down if we're firing
if (m_flGoalSpeed > m_flMaxSpeedFiring )
{
m_flGoalSpeed = m_flMaxSpeedFiring;
}
}
}
}
if (m_fHelicopterFlags & BITS_HELICOPTER_MISSILE_ON)
{
AimRocketGun();
}
// Finally, forget dead enemies.
if( GetEnemy() != NULL && (!GetEnemy()->IsAlive() || GetEnemy()->GetFlags() & FL_NOTARGET) )
{
SetEnemy( NULL );
}
}
//------------------------------------------------------------------------------
// Purpose :
// Input :
// Output :
//------------------------------------------------------------------------------
void CNPC_CombineDropship::PrescheduleThink( void )
{
BaseClass::PrescheduleThink();
// keep track of think time deltas for burn calc below
float dt = gpGlobals->curtime - m_flLastTime;
m_flLastTime = gpGlobals->curtime;
switch( m_iLandState )
{
case LANDING_NO:
{
if ( IsActivityFinished() && (GetActivity() != ACT_DROPSHIP_FLY_IDLE_EXAGG && GetActivity() != ACT_DROPSHIP_FLY_IDLE_CARGO) )
{
if ( m_hContainer )
{
SetIdealActivity( (Activity)ACT_DROPSHIP_FLY_IDLE_CARGO );
}
else
{
SetIdealActivity( (Activity)ACT_DROPSHIP_FLY_IDLE_EXAGG );
}
}
DoRotorWash();
}
break;
case LANDING_LEVEL_OUT:
{
// Approach the drop point
Vector vecToTarget = (GetDesiredPosition() - GetAbsOrigin());
float flDistance = vecToTarget.Length();
// If we're slowing, make it look like we're slowing
/*
if ( IsActivityFinished() && GetActivity() != ACT_DROPSHIP_DESCEND_IDLE )
{
SetActivity( (Activity)ACT_DROPSHIP_DESCEND_IDLE );
}
*/
// Are we there yet?
float flSpeed = GetAbsVelocity().Length();
if ( flDistance < 70 && flSpeed < 100 )
{
m_flLandingSpeed = flSpeed;
m_iLandState = LANDING_DESCEND;
// save off current angles so we can work them out over time
QAngle angles = GetLocalAngles();
m_existPitch = angles.x;
m_existRoll = angles.z;
}
DoRotorWash();
}
break;
case LANDING_DESCEND:
{
float flAltitude;
SetLocalAngularVelocity( vec3_angle );
// Ensure we land on the drop point
Vector vecToTarget = (GetDesiredPosition() - GetAbsOrigin());
float flDistance = vecToTarget.Length();
float flRampedSpeed = m_flLandingSpeed * (flDistance / 70);
Vector vecVelocity = (flRampedSpeed / flDistance) * vecToTarget;
vecVelocity.z = -75;
SetAbsVelocity( vecVelocity );
flAltitude = GetAltitude();
if ( IsActivityFinished() && GetActivity() != ACT_DROPSHIP_DESCEND_IDLE )
{
SetActivity( (Activity)ACT_DROPSHIP_DESCEND_IDLE );
}
if ( flAltitude < 72 )
{
QAngle angles = GetLocalAngles();
// Level out quickly.
angles.x = UTIL_Approach( 0.0, angles.x, 0.2 );
angles.z = UTIL_Approach( 0.0, angles.z, 0.2 );
SetLocalAngles( angles );
}
else
{
// randomly move as if buffeted by ground effects
// gently flatten ship from starting pitch/yaw
m_existPitch = UTIL_Approach( 0.0, m_existPitch, 1 );
m_existRoll = UTIL_Approach( 0.0, m_existRoll, 1 );
QAngle angles = GetLocalAngles();
angles.x = m_existPitch + ( sin( gpGlobals->curtime * 3.5f ) * DROPSHIP_MAX_LAND_TILT );
angles.z = m_existRoll + ( sin( gpGlobals->curtime * 3.75f ) * DROPSHIP_MAX_LAND_TILT );
SetLocalAngles( angles );
// figure out where to face (nav point)
Vector targetDir = GetDesiredPosition() - GetAbsOrigin();
// NDebugOverlay::Cross3D( m_pGoalEnt->GetAbsOrigin(), -Vector(2,2,2), Vector(2,2,2), 255, 0, 0, false, 20 );
QAngle targetAngles = GetAbsAngles();
targetAngles.y += UTIL_AngleDiff(UTIL_VecToYaw( targetDir ), targetAngles.y);
// orient ship towards path corner on the way down
angles = GetAbsAngles();
angles.y = UTIL_Approach(targetAngles.y, angles.y, 2 );
SetAbsAngles( angles );
}
if ( flAltitude <= 0.5f )
{
m_iLandState = LANDING_TOUCHDOWN;
// upon landing, make sure ship is flat
QAngle angles = GetLocalAngles();
angles.x = 0;
angles.z = 0;
SetLocalAngles( angles );
// TODO: Release cargo anim
SetActivity( (Activity)ACT_DROPSHIP_DESCEND_IDLE );
}
DoRotorWash();
// place danger sounds 1 foot above ground to get troops to scatter if they are below dropship
Vector vecBottom = GetAbsOrigin();
vecBottom.z += WorldAlignMins().z;
Vector vecSpot = vecBottom + Vector(0, 0, -1) * (GetAltitude() - 12 );
CSoundEnt::InsertSound( SOUND_DANGER, vecSpot, 400, 0.2, this, 0 );
CSoundEnt::InsertSound( SOUND_PHYSICS_DANGER, vecSpot, 400, 0.2, this, 1 );
// NDebugOverlay::Cross3D( vecSpot, -Vector(4,4,4), Vector(4,4,4), 255, 0, 255, false, 10.0f );
// now check to see if player is below us, if so, cause heat damage to them (i.e. get them to move)
trace_t tr;
Vector vecBBoxMin = CRATE_BBOX_MIN; // use flat box for check
vecBBoxMin.z = -5;
Vector vecBBoxMax = CRATE_BBOX_MAX;
vecBBoxMax.z = 5;
Vector pEndPoint = vecBottom + Vector(0, 0, -1) * ( GetAltitude() - 12 );
AI_TraceHull( vecBottom, pEndPoint, vecBBoxMin, vecBBoxMax, MASK_SOLID, this, COLLISION_GROUP_NONE, &tr );
if ( tr.fraction < 1.0f )
{
if ( tr.GetEntityIndex() == 1 ) // player???
{
CTakeDamageInfo info( this, this, 20 * dt, DMG_BURN );
CBasePlayer *pPlayer = UTIL_PlayerByIndex(1);
pPlayer->TakeDamage( info );
}
}
}
break;
case LANDING_TOUCHDOWN:
{
if ( IsActivityFinished() && ( GetActivity() != ACT_DROPSHIP_DESCEND_IDLE ) )
{
SetActivity( (Activity)ACT_DROPSHIP_DESCEND_IDLE );
}
m_iLandState = LANDING_UNLOADING;
m_flTroopDeployPause = gpGlobals->curtime + DROPSHIP_PAUSE_B4_TROOP_UNLOAD;
m_flTimeTakeOff = m_flTroopDeployPause + DROPSHIP_DEPLOY_TIME;
}
break;
case LANDING_UNLOADING:
{
// pause before dropping troops
if ( gpGlobals->curtime > m_flTroopDeployPause )
{
if ( m_hContainer ) // don't drop troops if we don't have a crate any more
{
SpawnTroops();
m_flTroopDeployPause = m_flTimeTakeOff + 2; // only drop once
}
}
// manage engine wash and volume
if ( m_flTimeTakeOff - gpGlobals->curtime < 0.5f )
{
m_engineThrust = UTIL_Approach( 1.0f, m_engineThrust, 0.1f );
DoRotorWash();
}
else
{
float idleVolume = 0.2f;
m_engineThrust = UTIL_Approach( idleVolume, m_engineThrust, 0.04f );
if ( m_engineThrust > idleVolume )
{
DoRotorWash(); // make sure we're kicking up dust/water as long as engine thrust is up
}
}
if( gpGlobals->curtime > m_flTimeTakeOff )
{
m_iLandState = LANDING_LIFTOFF;
SetActivity( (Activity)ACT_DROPSHIP_LIFTOFF );
m_engineThrust = 1.0f; // ensure max volume once we're airborne
if ( m_bIsFiring )
{
StopCannon(); // kill cannon sounds if they are on
}
// detach container from ship
if ( m_hContainer && m_leaveCrate )
{
m_hContainer->SetParent(NULL);
m_hContainer->SetMoveType( (MoveType_t)m_iContainerMoveType );
// If the container has a physics object, remove it's shadow
IPhysicsObject *pPhysicsObject = m_hContainer->VPhysicsGetObject();
if ( pPhysicsObject )
{
pPhysicsObject->RemoveShadowController();
}
m_hContainer = NULL;
}
}
}
break;
case LANDING_LIFTOFF:
{
// give us some clearance before changing back to larger hull -- keeps ship from getting stuck on
// things like the player, etc since we "pop" the hull...
if ( GetAltitude() > 120 )
{
m_OnFinishedDropoff.FireOutput( this, this );
m_iLandState = LANDING_NO;
// change bounding box back to normal ship hull
Vector vecBBMin, vecBBMax;
ExtractBbox( SelectHeaviestSequence( ACT_DROPSHIP_DEPLOY_IDLE ), vecBBMin, vecBBMax );
UTIL_SetSize( this, vecBBMin, vecBBMax );
Relink();
}
}
break;
case LANDING_SWOOPING:
{
// Did we lose our pickup target?
if ( !m_hPickupTarget )
{
m_iLandState = LANDING_NO;
}
else
{
// Decrease altitude and speed to hit the target point.
Vector vecToTarget = (GetDesiredPosition() - GetAbsOrigin());
float flDistance = vecToTarget.Length();
// Start cheating when we get near it
if ( flDistance < 50 )
{
/*
if ( flDistance > 10 )
{
// Cheat and ensure we touch the target
float flSpeed = GetAbsVelocity().Length();
Vector vecVelocity = vecToTarget;
VectorNormalize( vecVelocity );
SetAbsVelocity( vecVelocity * min(flSpeed,flDistance) );
}
else
*/
{
// Grab the target
m_hContainer = m_hPickupTarget;
m_hPickupTarget = NULL;
m_iContainerMoveType = m_hContainer->GetMoveType();
// If the container has a physics object, move it to shadow
IPhysicsObject *pPhysicsObject = m_hContainer->VPhysicsGetObject();
if ( pPhysicsObject )
{
pPhysicsObject->SetShadow( Vector(1e4,1e4,1e4), AngularImpulse(1e4,1e4,1e4), false, false );
pPhysicsObject->UpdateShadow( GetAbsOrigin(), GetAbsAngles(), false, 0 );
}
int iIndex = 0;//LookupAttachment("Cargo");
/*
Vector vecOrigin;
QAngle vecAngles;
GetAttachment( iIndex, vecOrigin, vecAngles );
m_hContainer->SetAbsOrigin( vecOrigin );
m_hContainer->SetAbsAngles( vec3_angle );
*/
m_hContainer->SetAbsOrigin( GetAbsOrigin() );
m_hContainer->SetParent(this, iIndex);
m_hContainer->SetMoveType( MOVETYPE_PUSH );
m_hContainer->RemoveFlag( FL_ONGROUND );
m_hContainer->Relink();
m_hContainer->SetAbsAngles( vec3_angle );
m_OnFinishedPickup.FireOutput( this, this );
m_iLandState = LANDING_NO;
}
}
}
DoRotorWash();
}
break;
}
DoCombatStuff();
if ( GetActivity() != GetIdealActivity() )
{
//Msg( "setactivity" );
SetActivity( GetIdealActivity() );
}
}
//------------------------------------------------------------------------------
// Purpose :
// Input :
// Output :
//------------------------------------------------------------------------------
void CNPC_CombineDropship::Flight( void )
{
// Only run pose params in some flight states
bool bRunPoseParams = ( m_iLandState == LANDING_NO ||
m_iLandState == LANDING_LEVEL_OUT ||
m_iLandState == LANDING_LIFTOFF ||
m_iLandState == LANDING_SWOOPING );
if ( bRunPoseParams )
{
if( GetFlags() & FL_ONGROUND )
{
//This would be really bad.
RemoveFlag( FL_ONGROUND );
}
// NDebugOverlay::Line(GetLocalOrigin(), GetDesiredPosition(), 0,0,255, true, 0.1);
Vector deltaPos = GetDesiredPosition() - GetLocalOrigin();
// calc desired acceleration
float dt = 1.0f;
Vector accel;
float accelRate = DROPSHIP_ACCEL_RATE;
float maxSpeed = m_flMaxSpeed;
if ( m_lifeState == LIFE_DYING )
{
accelRate *= 5.0;
maxSpeed *= 5.0;
}
float flDist = min( GetAbsVelocity().Length() + accelRate, maxSpeed );
// Only decelerate to our goal if we're going to hit it
if ( deltaPos.Length() > flDist * dt )
{
float scale = flDist * dt / deltaPos.Length();
deltaPos = deltaPos * scale;
}
// If we're swooping, floor it
if ( m_iLandState == LANDING_SWOOPING )
{
VectorNormalize( deltaPos );
deltaPos *= maxSpeed;
}
// calc goal linear accel to hit deltaPos in dt time.
accel.x = 2.0 * (deltaPos.x - GetAbsVelocity().x * dt) / (dt * dt);
accel.y = 2.0 * (deltaPos.y - GetAbsVelocity().y * dt) / (dt * dt);
accel.z = 2.0 * (deltaPos.z - GetAbsVelocity().z * dt + 0.5 * 384 * dt * dt) / (dt * dt);
//NDebugOverlay::Line(GetLocalOrigin(), GetLocalOrigin() + deltaPos, 255,0,0, true, 0.1);
//NDebugOverlay::Line(GetLocalOrigin(), GetLocalOrigin() + accel, 0,255,0, true, 0.1);
// don't fall faster than 0.2G or climb faster than 2G
if ( m_iLandState != LANDING_SWOOPING )
{
accel.z = clamp( accel.z, 384 * 0.2, 384 * 2.0 );
}
Vector forward, right, up;
GetVectors( &forward, &right, &up );
Vector goalUp = accel;
VectorNormalize( goalUp );
// calc goal orientation to hit linear accel forces
float goalPitch = RAD2DEG( asin( DotProduct( forward, goalUp ) ) );
float goalYaw = UTIL_VecToYaw( m_vecDesiredFaceDir );
float goalRoll = RAD2DEG( asin( DotProduct( right, goalUp ) ) );
// clamp goal orientations
goalPitch = clamp( goalPitch, -45, 60 );
goalRoll = clamp( goalRoll, -45, 45 );
// calc angular accel needed to hit goal pitch in dt time.
dt = 0.6;
QAngle goalAngAccel;
goalAngAccel.x = 2.0 * (AngleDiff( goalPitch, AngleNormalize( GetLocalAngles().x ) ) - GetLocalAngularVelocity().x * dt) / (dt * dt);
goalAngAccel.y = 2.0 * (AngleDiff( goalYaw, AngleNormalize( GetLocalAngles().y ) ) - GetLocalAngularVelocity().y * dt) / (dt * dt);
goalAngAccel.z = 2.0 * (AngleDiff( goalRoll, AngleNormalize( GetLocalAngles().z ) ) - GetLocalAngularVelocity().z * dt) / (dt * dt);
goalAngAccel.x = clamp( goalAngAccel.x, -300, 300 );
//goalAngAccel.y = clamp( goalAngAccel.y, -60, 60 );
goalAngAccel.y = clamp( goalAngAccel.y, -120, 120 );
goalAngAccel.z = clamp( goalAngAccel.z, -300, 300 );
// limit angular accel changes to simulate mechanical response times
dt = 0.1;
QAngle angAccelAccel;
angAccelAccel.x = (goalAngAccel.x - m_vecAngAcceleration.x) / dt;
angAccelAccel.y = (goalAngAccel.y - m_vecAngAcceleration.y) / dt;
angAccelAccel.z = (goalAngAccel.z - m_vecAngAcceleration.z) / dt;
angAccelAccel.x = clamp( angAccelAccel.x, -1000, 1000 );
angAccelAccel.y = clamp( angAccelAccel.y, -1000, 1000 );
angAccelAccel.z = clamp( angAccelAccel.z, -1000, 1000 );
m_vecAngAcceleration += angAccelAccel * 0.1;
// Msg( "pitch %6.1f (%6.1f:%6.1f) ", goalPitch, GetLocalAngles().x, m_vecAngVelocity.x );
// Msg( "roll %6.1f (%6.1f:%6.1f) : ", goalRoll, GetLocalAngles().z, m_vecAngVelocity.z );
// Msg( "%6.1f %6.1f %6.1f : ", goalAngAccel.x, goalAngAccel.y, goalAngAccel.z );
// Msg( "%6.0f %6.0f %6.0f\n", angAccelAccel.x, angAccelAccel.y, angAccelAccel.z );
ApplySidewaysDrag( right );
ApplyGeneralDrag();
QAngle angVel = GetLocalAngularVelocity();
angVel += m_vecAngAcceleration * 0.1;
//angVel.y = clamp( angVel.y, -60, 60 );
//angVel.y = clamp( angVel.y, -120, 120 );
angVel.y = clamp( angVel.y, -120, 120 );
SetLocalAngularVelocity( angVel );
m_flForce = m_flForce * 0.8 + (accel.z + fabs( accel.x ) * 0.1 + fabs( accel.y ) * 0.1) * 0.1 * 0.2;
Vector vecImpulse = m_flForce * up;
if ( m_lifeState == LIFE_DYING )
{
vecImpulse.z = -38.4; // 64ft/sec
}
else
{
vecImpulse.z -= 38.4; // 32ft/sec
}
// Find our acceleration direction
Vector vecAccelDir = vecImpulse;
VectorNormalize( vecAccelDir );
// Find our current velocity
Vector vecVelDir = GetAbsVelocity();
VectorNormalize( vecVelDir );
// Level out our plane of movement
vecAccelDir.z = 0.0f;
vecVelDir.z = 0.0f;
forward.z = 0.0f;
right.z = 0.0f;
// Find out how "fast" we're moving in relation to facing and acceleration
float speed = m_flForce * DotProduct( vecVelDir, vecAccelDir );// * DotProduct( forward, vecVelDir );
// Use the correct pose params
char *sBodyAccel;
char *sBodySway;
if ( m_hContainer || m_iLandState == LANDING_SWOOPING )
{
sBodyAccel = "cargo_body_accel";
sBodySway = "cargo_body_sway";
SetPoseParameter( "body_accel", 0 );
SetPoseParameter( "body_sway", 0 );
}
else
{
sBodyAccel = "body_accel";
sBodySway = "body_sway";
SetPoseParameter( "cargo_body_accel", 0 );
SetPoseParameter( "cargo_body_sway", 0 );
}
// Apply the acceleration blend to the fins
float finAccelBlend = SimpleSplineRemapVal( speed, -60, 60, -1, 1 );
float curFinAccel = GetPoseParameter( sBodyAccel );
curFinAccel = UTIL_Approach( finAccelBlend, curFinAccel, 0.5f );
SetPoseParameter( sBodyAccel, curFinAccel );
speed = m_flForce * DotProduct( vecVelDir, right );
// Apply the spin sway to the fins
float finSwayBlend = SimpleSplineRemapVal( speed, -60, 60, -1, 1 );
float curFinSway = GetPoseParameter( sBodySway );
curFinSway = UTIL_Approach( finSwayBlend, curFinSway, 0.5f );
SetPoseParameter( sBodySway, curFinSway );
// Add in our velocity pulse for this frame
ApplyAbsVelocityImpulse( vecImpulse );
//Msg("FinAccel: %f, Finsway: %f\n", curFinAccel, curFinSway );
}
else
{
SetPoseParameter( "body_accel", 0 );
SetPoseParameter( "body_sway", 0 );
SetPoseParameter( "cargo_body_accel", 0 );
SetPoseParameter( "cargo_body_sway", 0 );
}
}
