//////////////////////////////////////////////////////////////////////////
// NOTE: This function must be thread-safe. Before adding stuff contact MarcoC.
void CVehicleMovementTank::ProcessMovement(const float deltaTime)
{
FUNCTION_PROFILER( gEnv->pSystem, PROFILE_GAME );
m_netActionSync.UpdateObject(this);
CryAutoCriticalSection lk(m_lock);
CVehicleMovementBase::ProcessMovement(deltaTime);
if (!(m_actorId && m_isEnginePowered))
{
IPhysicalEntity* pPhysics = GetPhysics();
if (m_latFriction != 1.3f)
SetLatFriction(1.3f);
if (m_axleFriction != m_axleFrictionMax)
UpdateAxleFriction(0.f, false, deltaTime);
m_action.bHandBrake = 1;
m_action.pedal = 0;
m_action.steer = 0;
pPhysics->Action(&m_action, 1);
return;
}
IPhysicalEntity* pPhysics = GetPhysics();
MARK_UNUSED m_action.clutch;
Matrix34 worldTM( m_PhysPos.q );
worldTM.AddTranslation( m_PhysPos.pos );
const Matrix34 invWTM = worldTM.GetInvertedFast();
Vec3 localVel = invWTM.TransformVector(m_PhysDyn.v);
Vec3 localW = invWTM.TransformVector(m_PhysDyn.w);
float speed = m_PhysDyn.v.len();
float speedRatio = min(1.f, speed/m_maxSpeed);
float actionPedal = abs(m_movementAction.power) > 0.001f ? m_movementAction.power : 0.f;
// tank specific:
// avoid steering input around 0.5 (ask Anton)
float actionSteer = m_movementAction.rotateYaw;
float absSteer = abs(actionSteer);
float steerSpeed = (absSteer < 0.01f && abs(m_currSteer) > 0.01f) ? m_steerSpeedRelax : m_steerSpeed;
if (steerSpeed == 0.f)
{
m_currSteer = (float)sgn(actionSteer);
}
else
{
if (m_movementAction.isAI)
{
m_currSteer = actionSteer;
}
else
{
m_currSteer += min(abs(actionSteer-m_currSteer), deltaTime*steerSpeed) * sgn(actionSteer-m_currSteer);
}
}
Limit(m_currSteer, -m_steerLimit, m_steerLimit);
if (abs(m_currSteer) > 0.0001f)
{
// if steering, apply full throttle to have enough turn power
actionPedal = (float)sgn(actionPedal);
if (actionPedal == 0.f)
{
// allow steering-on-teh-spot only above maxReverseSpeed (to avoid sudden reverse of controls)
const float maxReverseSpeed = -1.5f;
actionPedal = max(0.f, min(1.f, 1.f-(localVel.y/maxReverseSpeed)));
// todo
float steerLim = 0.8f;
Limit(m_currSteer, -steerLim*m_steerLimit, steerLim*m_steerLimit);
}
}
if (!pPhysics->GetStatus(&m_vehicleStatus))
return;
int currGear = m_vehicleStatus.iCurGear - 1; // indexing for convenience: -1,0,1,2,..
UpdateAxleFriction(m_movementAction.power, true, deltaTime);
UpdateSuspension(deltaTime);
float absPedal = abs(actionPedal);
// pedal ramping
if (m_pedalSpeed == 0.f)
m_currPedal = actionPedal;
else
{
m_currPedal += deltaTime * m_pedalSpeed * sgn(actionPedal - m_currPedal);
m_currPedal = clamp_tpl(m_currPedal, -absPedal, absPedal);
}
// only apply pedal after threshold is exceeded
if (currGear == 0 && fabs_tpl(m_currPedal) < m_pedalThreshold)
m_action.pedal = 0;
else
m_action.pedal = m_currPedal;
// change pedal amount based on damages
float damageMul = 0.0f;
{
if (m_movementAction.isAI)
{
damageMul = 1.0f - 0.30f * m_damage;
m_action.pedal *= damageMul;
}
else
{
// request from Sten: damage shouldn't affect reversing so much.
float effectiveDamage = m_damage;
if(m_action.pedal < -0.1f)
effectiveDamage = 0.4f * m_damage;
m_action.pedal *= GetWheelCondition();
damageMul = 1.0f - 0.7f*effectiveDamage;
m_action.pedal *= damageMul;
}
}
// reverse steering value for backward driving
float effSteer = m_currSteer * sgn(actionPedal);
// update lateral friction
float latSlipMinGoal = 0.f;
float latFricMinGoal = m_latFricMin;
if (abs(effSteer) > 0.01f && !m_movementAction.brake)
{
latSlipMinGoal = m_latSlipMin;
// use steering friction, but not when countersteering
if (sgn(effSteer) != sgn(localW.z))
latFricMinGoal = m_latFricMinSteer;
}
Interpolate(m_currentSlipMin, latSlipMinGoal, 3.f, deltaTime);
if (latFricMinGoal < m_currentFricMin)
m_currentFricMin = latFricMinGoal;
else
Interpolate(m_currentFricMin, latFricMinGoal, 3.f, deltaTime);
float fractionSpeed = min(1.f, max(0.f, m_avgLateralSlip-m_currentSlipMin) / (m_latSlipMax-m_currentSlipMin));
float latFric = fractionSpeed * (m_latFricMax-m_currentFricMin) + m_currentFricMin;
if ( m_movementAction.brake && m_movementAction.isAI )
{
// it is natural for ai, apply differnt friction value while handbreaking
latFric = m_latFricMax;
}
if (latFric != m_latFriction)
{
SetLatFriction(latFric);
}
const static float maxSteer = gf_PI/4.f; // fix maxsteer, shouldn't change
m_action.steer = m_currSteer * maxSteer;
if (m_steeringImpulseMin > 0.f && m_wheelContactsLeft != 0 && m_wheelContactsRight != 0)
{
const float maxW = 0.3f*gf_PI;
float steer = abs(m_currSteer)>0.001f ? m_currSteer : 0.f;
float desired = steer * maxW;
float curr = -localW.z;
float err = desired - curr; // err>0 means correction to right
Limit(err, -maxW, maxW);
if (abs(err) > 0.01f)
{
float amount = m_steeringImpulseMin + speedRatio*(m_steeringImpulseMax-m_steeringImpulseMin);
// bigger correction for relaxing
if (desired == 0.f || (desired*curr>0 && abs(desired)<abs(curr)))
amount = m_steeringImpulseRelaxMin + speedRatio*(m_steeringImpulseRelaxMax-m_steeringImpulseRelaxMin);
float corr = -err * amount * m_PhysDyn.mass * deltaTime;
pe_action_impulse imp;
imp.iApplyTime = 0;
imp.angImpulse = worldTM.GetColumn2() * corr;
pPhysics->Action(&imp, THREAD_SAFE);
}
}
m_action.bHandBrake = (m_movementAction.brake) ? 1 : 0;
if (currGear > 0 && m_vehicleStatus.iCurGear < m_currentGear)
{
// when shifted down, disengage clutch immediately to avoid power/speed dropdown
m_action.clutch = 1.f;
}
pPhysics->Action(&m_action, 1);
if (Boosting())
ApplyBoost(speed, 1.2f*m_maxSpeed*GetWheelCondition()*damageMul, m_boostStrength, deltaTime);
if (m_wheelContacts <= 1 && speed > 5.f)
{
ApplyAirDamp(DEG2RAD(20.f), DEG2RAD(10.f), deltaTime, THREAD_SAFE);
UpdateGravity(-9.81f * 1.4f);
}
if (m_netActionSync.PublishActions( CNetworkMovementStdWheeled(this) ))
CHANGED_NETWORK_STATE(m_pVehicle, eEA_GameClientDynamic );
}
//------------------------------------------------------------------------
void CVehicleMovementStdBoat::UpdateRunSound(const float deltaTime)
{
Vec3 localAccel(ZERO);
m_measureSpeedTimer+=deltaTime;
if(m_measureSpeedTimer > 0.25f)
{
Vec3 accel = (m_statusDyn.v - m_lastMeasuredVel) * (1.f/m_measureSpeedTimer);
Matrix33 worldTM(!m_statusPos.q);
localAccel = worldTM * accel;
m_lastMeasuredVel = m_statusDyn.v;
m_measureSpeedTimer = 0.f;
}
if(m_pVehicle->IsProbablyDistant())
return;
float soundSpeedRatio = ms_engineSoundIdleRatio + (1.f-ms_engineSoundIdleRatio) * m_speedRatio;
SetSoundParam(eSID_Run, "speed", soundSpeedRatio);
SetSoundParam(eSID_Ambience, "speed", soundSpeedRatio);
//SetSoundParam(eSID_Run, "boost", Boosting() ? 1.f : 0.f);
float acceleration = min(1.f, abs(localAccel.y) / m_accel*max(1.f, m_accelCoeff));
if(acceleration > 0.5f)
{
if(ISound *pSound = GetOrPlaySound(eSID_Acceleration, 2.f))
SetSoundParam(pSound, "acceleration", acceleration);
}
float damage = GetSoundDamage();
if(damage > 0.1f)
{
if(ISound *pSound = GetOrPlaySound(eSID_Damage, 5.f, m_enginePos))
SetSoundParam(pSound, "damage", damage);
}
// rpm dropdown for waves
if(m_rpmPitchDir != 0)
{
float speed = (m_rpmPitchDir > 0) ? 0.1f : -0.8f; // quick down, slow up
m_waveSoundPitch += deltaTime * speed;
if(m_waveSoundPitch < -m_waveSoundAmount) // dropdown amount
{
m_waveSoundPitch = -m_waveSoundAmount;
m_rpmPitchDir = 1;
}
else if(m_waveSoundPitch > 0.f)
{
m_waveSoundPitch = 0.f;
m_rpmPitchDir = 0;
}
}
if(m_rpmPitchSpeed>0.f)
{
const float maxPedal = (!m_inWater) ? 1.f : Boosting() ? 0.8f : 0.7f;
// pitch rpm with pedal
float pedal = GetEnginePedal();
pedal = sgnnz(pedal)*max(ms_engineSoundIdleRatio, min(maxPedal, abs(pedal))); // clamp "pedal" to [0.2..0.7] range
float delta = pedal - m_rpmScaleSgn;
m_rpmScaleSgn = max(-1.f, min(1.f, m_rpmScaleSgn + sgn(delta)*min(abs(delta), m_rpmPitchSpeed*deltaTime)));
// skip transition around 0 when on pedal (sounds more realistic)
if(abs(GetEnginePedal()) > 0.001f && abs(delta) > 0.001f && sgn(m_rpmScaleSgn) != sgn(delta) && abs(m_rpmScaleSgn) <= 0.3f)
m_rpmScaleSgn = sgn(delta)*0.3f;
// for normal driving, rpm is clamped at max defined by sound dept
m_rpmScale = abs(m_rpmScaleSgn);
m_rpmScale = min(1.f, max(ms_engineSoundIdleRatio, m_rpmScale + m_waveSoundPitch));
SetSoundParam(eSID_Run, "rpm_scale", m_rpmScale);
SetSoundParam(eSID_Ambience, "rpm_scale", m_rpmScale);
}
}