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Code Issues 152 Wiki Activity

perf(physics): road vehicles farther than 1 km from the camera go by one step of the physics in a frame (physics.roadlod); count what resets the switching time of the vehicles (compressor, mains, diesel, physics woken) in the debug panel

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Hirek
2026-10-23 18:47:01 +02:00
parent a04efbf968
commit f17462b186
9 changed files with 117 additions and 6 deletions
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23
vehicle/DynObj.cpp
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@@ -8620,12 +8620,17 @@ vehicle_table::update( double Deltatime, int Iterationcount ) {
// kind, measured from the end of the one before it
static std::vector<std::uint8_t> kinds;
kinds.resize( m_items.size() );
// road vehicles far from the camera with nobody inside go by one step of the physics in the frame, as long as all the steps
// together (Global.physics_roadlod): their movement goes on, in coarser steps nobody is close enough to tell
static std::vector<std::uint8_t> coarse;
coarse.assign( m_items.size(), 0 );
auto const camera { Global.pCamera.Pos };
for( std::size_t index = 0; index < m_items.size(); ++index ) {
auto const *vehicle { m_items[ index ] };
auto const road { ( vehicle->MoverParameters->CategoryFlag & 2 ) != 0 };
auto const distant { glm::length2( vehicle->GetPosition() - camera ) > Timer::subsystem.VEHICLE_NEAR * Timer::subsystem.VEHICLE_NEAR };
kinds[ index ] = static_cast<std::uint8_t>( ( road ? 2 : 0 ) + ( distant ? 1 : 0 ) );
coarse[ index ] = static_cast<std::uint8_t>( Global.physics_roadlod && road && distant && ( false == vehicle->MechInside ) && ( Iterationcount > 1 ) );
if( false == vehicle->bEnabled ) { continue; }
++counts.kind[ kinds[ index ] ];
auto const *mover { vehicle->MoverParameters };
@@ -8680,34 +8685,40 @@ vehicle_table::update( double Deltatime, int Iterationcount ) {
for( int iteration = 0; iteration < Iterationcount - 1; ++iteration ) {
std::size_t index { 0 };
for( auto *vehicle : m_items ) {
vehicle->UpdateForce( Deltatime );
if( ( index >= coarse.size() ) || ( coarse[ index ] == 0 ) ) {
vehicle->UpdateForce( Deltatime );
}
lap( index++, Timer::subsystem.vehicles_forces_kind, mark );
}
index = 0;
for( auto *vehicle : m_items ) {
vehicle->FastUpdate( Deltatime );
if( ( index >= coarse.size() ) || ( coarse[ index ] == 0 ) ) {
vehicle->FastUpdate( Deltatime );
}
lap( index++, Timer::subsystem.vehicles_forces_kind, mark );
}
}
}
auto const totaltime { Deltatime * Iterationcount }; // całkowity czas
{
std::size_t index { 0 };
for( auto *vehicle : m_items ) {
vehicle->UpdateForce( Deltatime );
// the vehicles going by one step take it with the time of all of them
auto const coarsestep { ( index < coarse.size() ) && ( coarse[ index ] != 0 ) };
vehicle->UpdateForce( coarsestep ? totaltime : Deltatime );
lap( index++, Timer::subsystem.vehicles_forces_kind, mark );
}
}
Timer::subsystem.vehicles_forces.stop();
auto const totaltime { Deltatime * Iterationcount }; // całkowity czas
Timer::subsystem.vehicles_update.start();
{
std::size_t index { 0 };
mark = std::chrono::steady_clock::now();
for( auto *vehicle : m_items ) {
auto const coarsestep { ( index < coarse.size() ) && ( coarse[ index ] != 0 ) };
// Ra 2015-01: tylko tu przelicza sieć trakcyjną
vehicle->Update( Deltatime, totaltime );
vehicle->Update( coarsestep ? totaltime : Deltatime, totaltime );
lap( index++, Timer::subsystem.vehicles_update_kind, mark );
}
}