location.cpp

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#include "lugre_prefix.h"
#include "lugre_net.h"
#include "lugre_fifo.h"
#include "location.h"
#include "object.h"
#include <math.h> // random

using namespace Lugre;

cLocation::cLocation    () : mfBoundingRad(0) {}

cLocation::~cLocation   () {
    assert(mlObjects.size() == 0 && "cLocation should be empty on destruction");
}

void    cLocation::StepAllObjects   (const int iCurTime,const float fPhysStepTime,const bool bIncResyncCounterLow) {
    mfBoundingRad = 0;
    for (std::list<cObject*>::iterator itor=mlObjects.begin();itor!=mlObjects.end();++itor) (*itor)->Step(iCurTime,fPhysStepTime,bIncResyncCounterLow);
}

void    cLocation::DeleteAllObjects () {
    cObject* pObj;
    for (std::list<cObject*>::iterator itor=mlObjects.begin();itor!=mlObjects.end();++itor) {
        pObj = (*itor);
        pObj->_HackForgetParentLocation(); // prevent object from unregistring itself normally
        delete pObj;
    }
    mlObjects.clear();
}

int     cLocation::SendResyncs      (cUDP_SendSocket& pUDPSocket,const uint32 iAddr,const int iPort,const int iMinLastChangeTime,const float fRandomResyncProb) {
    static cFIFO myFIFO;
    cObject* pObj;
    int packetcounter = 0;
    float fiRandProb = fRandomResyncProb * float(RAND_MAX);
    for (std::list<cObject*>::iterator itor=mlObjects.begin();itor!=mlObjects.end();++itor) {
        pObj = (*itor);
        if (pObj->mbResynced && (pObj->miLastChangeTime >= iMinLastChangeTime || (fRandomResyncProb > 0 && float(rand()) < fiRandProb))) {
            myFIFO.Clear();
            pObj->SaveResyncData(myFIFO);
            pUDPSocket.Send(iAddr,iPort,myFIFO);
            ++packetcounter;
        }
    }
    return packetcounter;
}

int     cLocation::StoreResyncs     (cFIFO& pFIFO,const int iMinLastChangeTime,const float fRandomResyncProb) {
    cObject* pObj;
    int packetcounter = 0;
    float fiRandProb = fRandomResyncProb * float(RAND_MAX);
    for (std::list<cObject*>::iterator itor=mlObjects.begin();itor!=mlObjects.end();++itor) {
        pObj = (*itor);
        if (pObj->mbResynced && (pObj->miLastChangeTime >= iMinLastChangeTime || (fRandomResyncProb > 0 && float(rand()) < fiRandProb))) {
            pObj->SaveResyncData(pFIFO);
            ++packetcounter;
        }
    }
    return packetcounter;   
}