VisEntryIndex CPlayerVisTable::GetEntityIndexFromID(EntityId entityId)
{
CRY_TODO(30,09,2009, "Make faster");
CryPrefetch(((char*)m_visTableEntries) + 128);
for(VisEntryIndex i = 0; i < m_numUsedVisTableEntries; i++)
{
SVisTableEntry& visInfo = m_visTableEntries[i];
if(m_visTableEntries[i].entityId == entityId)
{
return i;
}
}
return -1;
}
//------------------------------------------------------------------------
void CTracerManager::Update(float frameTime)
{
CryPrefetch(m_tracerPool);
const CCamera& viewCamera = gEnv->pSystem->GetViewCamera();
const Vec3 cameraPosition = viewCamera.GetPosition();
const float viewCameraFovScale = viewCamera.GetFov() / DEG2RAD(g_pGame->GetFOV());
const int kNumActiveTracers = m_numActiveTracers;
for(int i = 0; i < kNumActiveTracers;)
{
int nextTracerIndex = i + 1;
CTracer& tracer = m_tracerPool[i];
CryPrefetch(&m_tracerPool[nextTracerIndex]);
//Update
const bool stillMoving = tracer.Update(frameTime, cameraPosition, viewCameraFovScale);
//Is it worth putting this in another loop for instruction cache coherency? Profile when PS3 is up and running - Rich S
if(stillMoving || (tracer.m_fadeOutTime > 0.f))
{
tracer.m_tracerFlags |= kTracerFlag_active;
if (!stillMoving)
{
tracer.m_fadeOutTime -= frameTime;
if (tracer.m_effectSlot > -1)
{
if (IEntity *pEntity = gEnv->pEntitySystem->GetEntity(tracer.m_entityId))
{
IParticleEmitter * emitter = pEntity->GetParticleEmitter(tracer.m_effectSlot);
if (emitter)
{
emitter->Activate(false);
}
if (tracer.m_tracerFlags & kTracerFlag_useGeometry)
{
pEntity->SetSlotFlags(tracer.m_geometrySlot, pEntity->GetSlotFlags(tracer.m_geometrySlot) &~ (ENTITY_SLOT_RENDER|ENTITY_SLOT_RENDER_NEAREST));
}
tracer.m_effectSlot = -1;
}
}
if(tracer.m_tracerFlags & kTracerFlag_useGeometry)
{
// Fade out geometry
if((tracer.m_fadeOutTime < tracer.m_startFadeOutTime) && (tracer.m_startFadeOutTime > 0.0f))
{
if (IEntity *pEntity = gEnv->pEntitySystem->GetEntity(tracer.m_entityId))
{
IEntityRenderProxy *pRenderProxy = (IEntityRenderProxy*)pEntity->GetProxy(ENTITY_PROXY_RENDER);
pRenderProxy->SetOpacity(max((tracer.m_fadeOutTime / tracer.m_startFadeOutTime) * tracer.m_geometryOpacity, 0.0f));
}
}
}
}
}
else
{
tracer.m_tracerFlags &= ~kTracerFlag_active;
tracer.m_boundToBulletId = 0;
}
i = nextTracerIndex;
}
//This is where we clear out the inactive tracers, so the counter isn't const
int numActiveTracers = kNumActiveTracers;
CWeaponSystem* pWeaponSystem = g_pGame->GetWeaponSystem();
for(int i = kNumActiveTracers - 1; i >= 0;)
{
int nextIndex = i - 1;
CTracer& tracer = m_tracerPool[i];
CryPrefetch(&m_tracerPool[nextIndex]);
if(!(tracer.m_tracerFlags & kTracerFlag_active))
{
if (IEntity *pEntity=gEnv->pEntitySystem->GetEntity(tracer.m_entityId))
{
pEntity->Hide(true);
pEntity->FreeSlot(TRACER_GEOM_SLOT);
pEntity->FreeSlot(TRACER_FX_SLOT);
}
//Switch the inactive tracer so it's at the end of the array;
const int lastTracer = numActiveTracers - 1;
static CTracer temp;
temp = tracer;
numActiveTracers = lastTracer;
tracer = m_tracerPool[lastTracer];
m_tracerPool[lastTracer] = temp;
//Re-bind index to the corresponding bullet
if (tracer.m_boundToBulletId)
{
CProjectile* pProjectile = pWeaponSystem->GetProjectile(tracer.m_boundToBulletId);
if (pProjectile && pProjectile->IsAlive())
{
if(lastTracer == pProjectile->GetTracerIdx())
{
pProjectile->BindToTracer(i);
}
else if(lastTracer == pProjectile->GetThreatTrailTracerIdx())
{
pProjectile->BindToThreatTrailTracer(i);
}
}
}
}
i = nextIndex;
}
m_numActiveTracers = numActiveTracers;
}
int CPlayerVisTable::AddVisTableEntriesToPriorityList()
{
int numAdded = 0;
int worstPriority = std::numeric_limits<int>::min();
int worstPriorityIndex = 0;
const int kNumUsedVisTableEntries = m_numUsedVisTableEntries;
for(int i = 0; i < kNumUsedVisTableEntries; i++)
{
CryPrefetch(&m_visTableEntries[i+4]);
SVisTableEntry& visInfo = m_visTableEntries[i];
const int lastRequestedLatency = visInfo.lastRequestedLatency;
const int framesSinceLastCheck = visInfo.framesSinceLastCheck;
int newEntryPriority = lastRequestedLatency - framesSinceLastCheck;
if ((visInfo.flags & eVF_Requested) && !(visInfo.flags & eVF_Pending))
{
if(numAdded < kMaxVisTableLinetestsPerFrame)
{
SVisTablePriority& visPriority = m_visTablePriorities[numAdded];
visPriority.visInfo = &visInfo;
visPriority.priority = newEntryPriority;
visPriority.visIndex = i;
if(newEntryPriority > worstPriority)
{
worstPriority = newEntryPriority;
worstPriorityIndex = numAdded;
}
numAdded++;
}
else if(newEntryPriority < worstPriority)
{
SVisTablePriority& worstVisPriority = m_visTablePriorities[worstPriorityIndex];
worstPriority = newEntryPriority;
worstVisPriority.priority = newEntryPriority;
worstVisPriority.visInfo = &visInfo;
worstVisPriority.visIndex = i;
for(int j = 0; j < numAdded; j++)
{
SVisTablePriority& visP = m_visTablePriorities[j];
if(worstPriority <= visP.priority )
{
worstPriority = visP.priority;
worstPriorityIndex = j;
}
}
}
}
else
{
if(visInfo.framesSinceLastCheck > (kMinUnusedFramesBeforeEntryRemoved + visInfo.lastRequestedLatency))
{
visInfo.flags |= eVF_Remove;
}
}
}
return numAdded;
}
bool CPlayerVisTable::CanLocalPlayerSee(const SVisibilityParams& target, uint8 acceptableFrameLatency)
{
assert(acceptableFrameLatency < 128); //If this is too high there is the potential for the framesSinceLastCheck to overflow
bool localPlayerCanSee = false;
CryPrefetch(m_visTableEntries);
VisEntryIndex visIndex = GetEntityIndexFromID(target.targetEntityId);
#if ALLOW_VISTABLE_DEBUGGING
m_numQueriesThisFrame++;
#endif
if(visIndex != -1)
{
SVisTableEntry& visInfo = m_visTableEntries[visIndex];
visInfo.lastRequestedLatency = ((visInfo.lastRequestedLatency + acceptableFrameLatency + 1) / 2);
visInfo.flags |= eVF_Requested;
if (target.queryParams & eVQP_UseCenterAsReference)
{
visInfo.flags |= eVF_CheckAgainstCenter;
}
visInfo.heightOffset = target.heightOffset;
localPlayerCanSee = (target.queryParams & eVQP_IgnoreGlass) != 0 ? (visInfo.flags & eVF_VisibleThroughGlass) != 0 : (visInfo.flags & eVF_Visible) != 0;
const bool checkAgainstSmoke = localPlayerCanSee && !(target.queryParams&eVQP_IgnoreSmoke);
if(checkAgainstSmoke)
{
//Now check vs obscuring smoke grenades. These are created at runtime, randomly,
// and have a short lifetime. Timeslicing the checks against them could render them
// largely ineffective - Rich S
Vec3 localPlayerPosn;
GetLocalPlayerPosn(localPlayerPosn);
IEntity * pEntity = gEnv->pEntitySystem->GetEntity(visInfo.entityId);
if(pEntity)
{
if(!CSmokeManager::GetSmokeManager()->CanSeePointThroughSmoke(pEntity->GetPos(), localPlayerPosn))
{
localPlayerCanSee = false;
visInfo.flags &= ~(eVF_Visible | eVF_VisibleThroughGlass);
}
}
}
}
else
{
SVisTableEntry& visInfo = m_visTableEntries[m_numUsedVisTableEntries];
visInfo.flags = eVF_Requested;
if (target.queryParams & eVQP_UseCenterAsReference)
{
visInfo.flags |= eVF_CheckAgainstCenter;
}
visInfo.entityId = target.targetEntityId;
visInfo.lastRequestedLatency = acceptableFrameLatency;
visInfo.framesSinceLastCheck = acceptableFrameLatency;
visInfo.heightOffset = target.heightOffset;
localPlayerCanSee = false;
m_numUsedVisTableEntries++;
assert(m_numUsedVisTableEntries <= kMaxVisTableEntries);
}
return localPlayerCanSee;
}
void CPlayerVisTable::Update(float dt)
{
const int numEntries = m_numUsedVisTableEntries;
CryPrefetch(m_visTableEntries);
//Flip the buffers
m_currentBufferProcessing = 1 - m_currentBufferProcessing;
m_currentBufferTarget = 1 - m_currentBufferTarget;
Vec3 localPlayerPosn;
GetLocalPlayerPosn(localPlayerPosn);
//Iterate over all of the vis table entries and calculate the priorities
int numAdded = AddVisTableEntriesToPriorityList();
//Iterate over all of the vis table entries
for(int i = 0; i < numAdded; ++i)
{
const SVisTablePriority& visTableEntry = m_visTablePriorities[i];
DoVisibilityCheck(localPlayerPosn, *visTableEntry.visInfo, visTableEntry.visIndex);
}
const int kNumVistableEntries = m_numUsedVisTableEntries;
for(int i = 0; i < kNumVistableEntries; i++)
{
m_visTableEntries[i].framesSinceLastCheck++;
}
#if ALLOW_VISTABLE_DEBUGGING
if(g_pGameCVars->pl_debug_vistableIgnoreEntities)
{
UpdateIgnoreEntityDebug();
}
if(g_pGameCVars->pl_debug_vistable)
{
const float white[] = {1.0f,1.0f,1.0f,1.0f};
const int kNumUsedVistableEntries = m_numUsedVisTableEntries;
VisEntryIndex worstIndex = -1;
int worstLatency = 0;
for(int i = 0; i < kNumUsedVistableEntries; i++)
{
if((m_visTableEntries[i].flags & eVF_Requested) && !(m_visTableEntries[i].flags & eVF_Remove) && (m_visTableEntries[i].framesSinceLastCheck > worstLatency))
{
worstLatency = m_visTableEntries[i].framesSinceLastCheck;
worstIndex = i;
}
}
int assertAfterThisManyFrames = g_pGameCVars->g_assertWhenVisTableNotUpdatedForNumFrames;
if (worstLatency >= assertAfterThisManyFrames && worstIndex > 0 && worstIndex < kNumUsedVistableEntries)
{
IEntity * entity = gEnv->pEntitySystem->GetEntity(m_visTableEntries[worstIndex].entityId);
CRY_ASSERT_MESSAGE(false, string().Format("%u frames have passed since last check of vis-table element %d (entity %d = %s \"%s\") flags=%u", m_visTableEntries[worstIndex].framesSinceLastCheck, worstIndex, m_visTableEntries[worstIndex].entityId, entity ? entity->GetClass()->GetName() : "NULL", entity ? entity->GetName() : "NULL", m_visTableEntries[worstIndex].flags));
}
gEnv->pRenderer->Draw2dLabel(20.f, 500.f, 1.5f, white, false, "VistableInfo:\n Num Linetests this frame: %d\n Num queries this frame: %d\n Worst latency: %d", m_numLinetestsThisFrame, m_numQueriesThisFrame, worstLatency);
if (g_pGameCVars->pl_debug_vistable == 2)
{
m_debugDraw.Update();
}
}
m_numQueriesThisFrame = 0;
#endif
m_numLinetestsThisFrame = 0;
ClearRemovedEntities();
}