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BGE performance:

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- Vast performance increase when removing scene containing large number of 
  objects: the sensor/controller map was updated for each deleted object, 
  causing massive slow down when the number of objects was large (O(n^2)).
- Use reference when scanning the sensor map => avoid useless copy.
- Remove dynamically the object bounding box from the DBVT when the object
  is invisible => faster culling.
This commit is contained in:
Benoit Bolsee
2009-05-01 20:34:23 +00:00
parent e13a089d91
commit 07abb9dee2
5 changed files with 32 additions and 13 deletions
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29
source/gameengine/GameLogic/SCA_LogicManager.cpp
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@@ -79,6 +79,13 @@ SCA_LogicManager::~SCA_LogicManager()
m_activeActuators.clear();
}
// this function is a performance helper when the scene is destoyed
// without it, the map updated for each object... a massive slow down when there are
// large number of objects. By clearing the map upfront we avoid the waster of time.
void SCA_LogicManager::RemoveSensorMap()
{
m_sensorcontrollermapje.clear();
}
/*
// this kind of fixes bug 398 but breakes games, so better leave it out for now.
@@ -171,12 +178,16 @@ void* SCA_LogicManager::FindBlendObjByGameMeshName(const STR_String& gamemeshnam
void SCA_LogicManager::RemoveSensor(SCA_ISensor* sensor)
{
controllerlist contlist = m_sensorcontrollermapje[sensor];
for (controllerlist::const_iterator c= contlist.begin();!(c==contlist.end());c++)
sensormap_t::const_iterator mit = m_sensorcontrollermapje.find(sensor);
if (mit != m_sensorcontrollermapje.end())
{
(*c)->UnlinkSensor(sensor);
const controllerlist& contlist = mit->second;
for (controllerlist::const_iterator c= contlist.begin();!(c==contlist.end());c++)
{
(*c)->UnlinkSensor(sensor);
}
m_sensorcontrollermapje.erase(sensor);
}
m_sensorcontrollermapje.erase(sensor);
sensor->UnregisterToManager();
}
@@ -184,7 +195,7 @@ void SCA_LogicManager::RemoveController(SCA_IController* controller)
{
controller->UnlinkAllSensors();
controller->UnlinkAllActuators();
std::map<SCA_ISensor*,controllerlist>::iterator sit;
sensormap_t::iterator sit;
for (sit = m_sensorcontrollermapje.begin();!(sit==m_sensorcontrollermapje.end());++sit)
{
(*sit).second.remove(controller);
@@ -197,10 +208,10 @@ void SCA_LogicManager::RemoveDestroyedActuator(SCA_IActuator* actuator)
m_removedActuators.push_back(SmartActuatorPtr(actuator,0));
// take care that no controller can use this actuator again !
std::map<SCA_ISensor*,controllerlist>::const_iterator sit;
sensormap_t::const_iterator sit;
for (sit = m_sensorcontrollermapje.begin();!(sit==m_sensorcontrollermapje.end());++sit)
{
controllerlist contlist = (*sit).second;
const controllerlist& contlist = sit->second;
for (list<SCA_IController*>::const_iterator c= contlist.begin();!(c==contlist.end());c++)
{
(*c)->UnlinkActuator(actuator);
@@ -237,8 +248,8 @@ void SCA_LogicManager::BeginFrame(double curtime, double fixedtime)
!(is==m_activatedsensors.end());is++)
{
SCA_ISensor* sensor = *is;
controllerlist contlist = m_sensorcontrollermapje[sensor];
for (list<SCA_IController*>::const_iterator c= contlist.begin();
const controllerlist& contlist = m_sensorcontrollermapje[sensor];
for (list<SCA_IController*>::const_iterator c= contlist.begin();
!(c==contlist.end());c++)
{
SCA_IController* contr = *c;//controllerarray->at(c);