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Reapply "Merge pull request #2569 from secondlife/leviathan/send_agent_update" 

This reverts commit 6293769465.
master
Ansariel 2024-11-07 19:31:13 +01:00
parent 8a28d73c00
commit 1dc51254b3
6 changed files with 183 additions and 283 deletions
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54
indra/newview/llagent.cpp
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@ -475,8 +475,6 @@ LLAgent::LLAgent() :
// </FS>
mControlFlags(0x00000000),
mbFlagsDirty(false),
mbFlagsNeedReset(false),
mAutoPilot(false),
mAutoPilotFlyOnStop(false),
@ -1060,8 +1058,6 @@ void LLAgent::setFlying(bool fly, bool fail_sound)
// Update Movement Controls according to Fly mode
LLFloaterMove::setFlyingMode(fly);
mbFlagsDirty = true;
}
@ -1230,7 +1226,6 @@ void LLAgent::setRegion(LLViewerRegion *regionp)
{
regionp->setCapabilitiesReceivedCallback(LLAgent::capabilityReceivedCallback);
}
}
else
{
@ -1758,7 +1753,6 @@ U32 LLAgent::getControlFlags()
void LLAgent::setControlFlags(U32 mask)
{
mControlFlags |= mask;
mbFlagsDirty = true;
}
@ -1767,28 +1761,7 @@ void LLAgent::setControlFlags(U32 mask)
//-----------------------------------------------------------------------------
void LLAgent::clearControlFlags(U32 mask)
{
U32 old_flags = mControlFlags;
mControlFlags &= ~mask;
if (old_flags != mControlFlags)
{
mbFlagsDirty = true;
}
}
//-----------------------------------------------------------------------------
// controlFlagsDirty()
//-----------------------------------------------------------------------------
bool LLAgent::controlFlagsDirty() const
{
return mbFlagsDirty;
}
//-----------------------------------------------------------------------------
// enableControlFlagReset()
//-----------------------------------------------------------------------------
void LLAgent::enableControlFlagReset()
{
mbFlagsNeedReset = true;
}
//-----------------------------------------------------------------------------
@ -1796,14 +1769,9 @@ void LLAgent::enableControlFlagReset()
//-----------------------------------------------------------------------------
void LLAgent::resetControlFlags()
{
if (mbFlagsNeedReset)
{
mbFlagsNeedReset = false;
mbFlagsDirty = false;
// reset all of the ephemeral flags
// some flags are managed elsewhere
mControlFlags &= AGENT_CONTROL_AWAY | AGENT_CONTROL_FLY | AGENT_CONTROL_MOUSELOOK;
}
// reset all of the ephemeral flags
// some flags are managed elsewhere
mControlFlags &= AGENT_CONTROL_AWAY | AGENT_CONTROL_FLY | AGENT_CONTROL_MOUSELOOK;
}
//-----------------------------------------------------------------------------
@ -2516,11 +2484,19 @@ void LLAgent::propagate(const F32 dt)
}
// handle rotation based on keyboard levels
const F32 YAW_RATE = 90.f * DEG_TO_RAD; // radians per second
yaw(YAW_RATE * gAgentCamera.getYawKey() * dt);
constexpr F32 YAW_RATE = 90.f * DEG_TO_RAD; // radians per second
F32 angle = YAW_RATE * gAgentCamera.getYawKey() * dt;
if (fabs(angle) > 0.0f)
{
yaw(angle);
}
const F32 PITCH_RATE = 90.f * DEG_TO_RAD; // radians per second
pitch(PITCH_RATE * gAgentCamera.getPitchKey() * dt);
constexpr F32 PITCH_RATE = 90.f * DEG_TO_RAD; // radians per second
angle = PITCH_RATE * gAgentCamera.getPitchKey() * dt;
if (fabs(angle) > 0.0f)
{
pitch(angle);
}
// handle auto-land behavior
if (isAgentAvatarValid())

4
indra/newview/llagent.h
View File

@ -565,21 +565,17 @@ public:
void setControlFlags(U32 mask); // Performs bitwise mControlFlags |= mask
void clearControlFlags(U32 mask); // Performs bitwise mControlFlags &= ~mask
bool controlFlagsDirty() const;
void enableControlFlagReset();
void resetControlFlags();
bool anyControlGrabbed() const; // True iff a script has taken over a control
bool isControlGrabbed(S32 control_index) const;
// Send message to simulator to force grabbed controls to be
// released, in case of a poorly written script.
void forceReleaseControls();
void setFlagsDirty() { mbFlagsDirty = true; }
private:
S32 mControlsTakenCount[TOTAL_CONTROLS];
S32 mControlsTakenPassedOnCount[TOTAL_CONTROLS];
U32 mControlFlags; // Replacement for the mFooKey's
bool mbFlagsDirty;
bool mbFlagsNeedReset; // ! HACK ! For preventing incorrect flags sent when crossing region boundaries
// <FS> Ignore prejump and always fly
bool mIgnorePrejump;

4
indra/newview/llagentcamera.cpp
View File

@ -2516,10 +2516,6 @@ void LLAgentCamera::changeCameraToMouselook(bool animate)
AOEngine::getInstance()->inMouselook(true);
const U32 old_flags = gAgent.getControlFlags();
gAgent.setControlFlags(AGENT_CONTROL_MOUSELOOK);
if (old_flags != gAgent.getControlFlags())
{
gAgent.setFlagsDirty();
}
if (animate)
{

37
indra/newview/llappviewer.cpp
View File

@ -713,8 +713,6 @@ LLAppViewer::LLAppViewer()
mQuitRequested(false),
mClosingFloaters(false),
mLogoutRequestSent(false),
mLastAgentControlFlags(0),
mLastAgentForceUpdate(0),
mMainloopTimeout(NULL),
mAgentRegionLastAlive(false),
mRandomizeFramerate(LLCachedControl<bool>(gSavedSettings,"Randomize Framerate", false)),
@ -5578,31 +5576,13 @@ void LLAppViewer::idle()
gAgent.autoPilot(&yaw);
}
static LLFrameTimer agent_update_timer;
send_agent_update(false);
// When appropriate, update agent location to the simulator.
F32 agent_update_time = agent_update_timer.getElapsedTimeF32();
F32 agent_force_update_time = mLastAgentForceUpdate + agent_update_time;
bool timed_out = agent_update_time > (1.0f / (F32)AGENT_UPDATES_PER_SECOND);
bool force_send =
// if there is something to send
(gAgent.controlFlagsDirty() && timed_out)
// if something changed
|| (mLastAgentControlFlags != gAgent.getControlFlags())
// keep alive
|| (agent_force_update_time > (1.0f / (F32) AGENT_FORCE_UPDATES_PER_SECOND));
// timing out doesn't warranty that an update will be sent,
// just that it will be checked.
if (force_send || timed_out)
{
LL_PROFILE_ZONE_SCOPED_CATEGORY_NETWORK;
// Send avatar and camera info
mLastAgentControlFlags = gAgent.getControlFlags();
mLastAgentForceUpdate = force_send ? 0 : agent_force_update_time;
if(!gAgent.getPhantom())
send_agent_update(force_send);
agent_update_timer.reset();
}
// After calling send_agent_update() in the mainloop we always clear
// the agent's ephemeral ControlFlags (whether an AgentUpdate was
// actually sent or not) because these will be recomputed based on
// real-time key/controller input and resubmitted next frame.
gAgent.resetControlFlags();
}
//////////////////////////////////////
@ -6240,11 +6220,6 @@ void LLAppViewer::idleNetwork()
}
#endif
// we want to clear the control after sending out all necessary agent updates
gAgent.resetControlFlags();
// Decode enqueued messages...
S32 remaining_possible_decodes = MESSAGE_MAX_PER_FRAME - total_decoded;

6
indra/newview/llappviewer.h
View File

@ -344,8 +344,6 @@ private:
bool mQuitRequested; // User wants to quit, may have modified documents open.
bool mClosingFloaters;
bool mLogoutRequestSent; // Disconnect message sent to simulator, no longer safe to send messages to the sim.
U32 mLastAgentControlFlags;
F32 mLastAgentForceUpdate;
struct SettingsFiles* mSettingsLocationList;
LLWatchdogTimeout* mMainloopTimeout;
@ -373,10 +371,6 @@ private:
virtual void startCachePurge() {}
};
// consts from viewer.h
const S32 AGENT_UPDATES_PER_SECOND = 125; // Value derived experimentally to avoid Input Delays with latest PBR-Capable Viewers when viewer FPS is highly volatile.
const S32 AGENT_FORCE_UPDATES_PER_SECOND = 1;
// Globals with external linkage. From viewer.h
// *NOTE:Mani - These will be removed as the Viewer App Cleanup project continues.
//

361
indra/newview/llviewermessage.cpp
View File

@ -4056,14 +4056,9 @@ void process_crossed_region(LLMessageSystem* msg, void**)
}
// Sends avatar and camera information to simulator.
// Sent roughly once per frame, or 20 times per second, whichever is less often
const F32 THRESHOLD_HEAD_ROT_QDOT = 0.9997f; // ~= 2.5 degrees -- if its less than this we need to update head_rot
const F32 MAX_HEAD_ROT_QDOT = 0.99999f; // ~= 0.5 degrees -- if its greater than this then no need to update head_rot
// between these values we delay the updates (but no more than one second)
// sends an AgentUpdate message to the server... or not:
// only when force_send is 'true' OR
// something changed AND the update is not being throttled
void send_agent_update(bool force_send, bool send_reliable)
{
LL_PROFILE_ZONE_SCOPED;
@ -4071,74 +4066,46 @@ void send_agent_update(bool force_send, bool send_reliable)
if (gAgent.getTeleportState() != LLAgent::TELEPORT_NONE)
{
// We don't care if they want to send an agent update, they're not allowed to until the simulator
// that's the target is ready to receive them (after avatar_init_complete is received)
// We don't care if they want to send an agent update, they're not allowed
// until the target simulator is ready to receive them
// (e.g. after avatar_init_complete is received)
return;
}
if(gAgent.getPhantom()) return; //Don't want to do this while phantom
// We have already requested to log out. Don't send agent updates.
if(LLAppViewer::instance()->logoutRequestSent())
if (LLAppViewer::instance()->logoutRequestSent())
{
// We have already requested to log out. Don't send agent updates.
return;
}
// no region to send update to
if(gAgent.getRegion() == NULL)
if (gAgent.getRegion() == nullptr || gDisconnected)
{
// no region to send update to
return;
}
const F32 TRANSLATE_THRESHOLD = 0.01f;
static F64 last_send_time = 0.0;
static U32 last_control_flags = 0;
static U8 last_render_state = 0;
static U8 last_flags = AU_FLAGS_NONE;
static LLQuaternion last_body_rot,
last_head_rot;
static LLVector3 last_camera_pos_agent,
last_camera_at;
// NOTA BENE: This is (intentionally?) using the small angle sine approximation to test for rotation
// Plus, there is an extra 0.5 in the mix since the perpendicular between last_camera_at and getAtAxis() bisects cam_rot_change
// Thus, we're actually testing against 0.2 degrees
const F32 ROTATION_THRESHOLD = 0.1f * 2.f*F_PI/360.f; // Rotation thresh 0.2 deg, see note above
const U8 DUP_MSGS = 1; // HACK! number of times to repeat data on motionless agent
// Store data on last sent update so that if no changes, no send
static LLVector3 last_camera_pos_agent,
last_camera_at,
last_camera_left,
last_camera_up;
static LLVector3 cam_center_chg,
cam_rot_chg;
static LLQuaternion last_head_rot;
static U32 last_control_flags = 0;
static U8 last_render_state;
static U8 duplicate_count = 0;
static F32 head_rot_chg = 1.0;
static U8 last_flags;
LLMessageSystem *msg = gMessageSystem;
LLVector3 camera_pos_agent; // local to avatar's region
U8 render_state;
LLQuaternion body_rotation = gAgent.getFrameAgent().getQuaternion();
LLQuaternion head_rotation = gAgent.getHeadRotation();
camera_pos_agent = gAgentCamera.getCameraPositionAgent();
render_state = gAgent.getRenderState();
U32 control_flag_change = 0;
U8 flag_change = 0;
cam_center_chg = last_camera_pos_agent - camera_pos_agent;
cam_rot_chg = last_camera_at - LLViewerCamera::getInstance()->getAtAxis();
// compute sec_since_last_send
constexpr F64 MAX_AGENT_UPDATES_PER_SECOND = 125.0; // Value derived experimentally to avoid Input Delays with latest PBR-Capable Viewers when viewer FPS is highly volatile.
constexpr F64 MIN_AGENT_UPDATES_PER_SECOND = 1.0; // keep-alive rate
constexpr F64 MIN_AGENT_UPDATE_PERIOD = 1.0 / MAX_AGENT_UPDATES_PER_SECOND;
constexpr F64 MAX_AGENT_UPDATE_PERIOD = 1.0 / MIN_AGENT_UPDATES_PER_SECOND;
F64 now = LLFrameTimer::getTotalSeconds();
F64 sec_since_last_send = now - last_send_time;
// If a modifier key is held down, turn off
// LBUTTON and ML_LBUTTON so that using the camera (alt-key) doesn't
// trigger a control event.
U32 control_flags = gAgent.getControlFlags();
MASK key_mask = gKeyboard->currentMask(true);
MASK key_mask = gKeyboard->currentMask(true);
if (key_mask & MASK_ALT || key_mask & MASK_CONTROL)
{
control_flags &= ~( AGENT_CONTROL_LBUTTON_DOWN |
@ -4147,7 +4114,22 @@ void send_agent_update(bool force_send, bool send_reliable)
AGENT_CONTROL_ML_LBUTTON_UP ;
}
control_flag_change = last_control_flags ^ control_flags;
// any change in control_flags should be sent ASAP, so we fold that into force_send
force_send = force_send || (control_flags != last_control_flags);
if (! force_send && sec_since_last_send < MIN_AGENT_UPDATE_PERIOD)
{
// throttle less-important AgentUpdates
return;
}
bool send_update = force_send || sec_since_last_send > MAX_AGENT_UPDATE_PERIOD;
LLVector3 camera_pos_agent = gAgentCamera.getCameraPositionAgent(); // local to avatar's region
LLVector3 camera_at = LLViewerCamera::getInstance()->getAtAxis();
LLQuaternion body_rotation = gAgent.getFrameAgent().getQuaternion();
LLQuaternion head_rotation = gAgent.getHeadRotation();
U8 render_state = gAgent.getRenderState();
U8 flags = AU_FLAGS_NONE;
if (gAgent.isGroupTitleHidden())
@ -4159,159 +4141,140 @@ void send_agent_update(bool force_send, bool send_reliable)
flags |= AU_FLAGS_CLIENT_AUTOPILOT;
}
flag_change = last_flags ^ flags;
head_rot_chg = dot(last_head_rot, head_rotation);
//static S32 msg_number = 0; // Used for diagnostic log messages
if (force_send ||
(cam_center_chg.magVec() > TRANSLATE_THRESHOLD) ||
(head_rot_chg < THRESHOLD_HEAD_ROT_QDOT) ||
(last_render_state != render_state) ||
(cam_rot_chg.magVec() > ROTATION_THRESHOLD) ||
control_flag_change != 0 ||
flag_change != 0)
if (!send_update)
{
/* Diagnotics to show why we send the AgentUpdate message. Also un-commment the msg_number code above and below this block
msg_number += 1;
if (head_rot_chg < THRESHOLD_HEAD_ROT_QDOT)
// check to see if anything changed
// use a do-while-false to provide easy way to break out as soon as we find something changed
do
{
//LL_INFOS("Messaging") << "head rot " << head_rotation << LL_ENDL;
LL_INFOS("Messaging") << "msg " << msg_number << ", frame " << LLFrameTimer::getFrameCount() << ", head_rot_chg " << head_rot_chg << LL_ENDL;
}
if (cam_rot_chg.magVec() > ROTATION_THRESHOLD)
{
LL_INFOS("Messaging") << "msg " << msg_number << ", frame " << LLFrameTimer::getFrameCount() << ", cam rot " << cam_rot_chg.magVec() << LL_ENDL;
}
if (cam_center_chg.magVec() > TRANSLATE_THRESHOLD)
{
LL_INFOS("Messaging") << "msg " << msg_number << ", frame " << LLFrameTimer::getFrameCount() << ", cam center " << cam_center_chg.magVec() << LL_ENDL;
}
// if (drag_delta_chg.magVec() > TRANSLATE_THRESHOLD)
// {
// LL_INFOS("Messaging") << "drag delta " << drag_delta_chg.magVec() << LL_ENDL;
// }
if (control_flag_change)
{
LL_INFOS("Messaging") << "msg " << msg_number << ", frame " << LLFrameTimer::getFrameCount() << ", dcf = " << control_flag_change << LL_ENDL;
}
*/
// start with the easy evaluations and progress to more complicated
duplicate_count = 0;
}
else
{
duplicate_count++;
// check render_state
if (last_render_state != render_state)
{
send_update = true;
break;
}
// check flags
if (last_flags != flags)
{
send_update = true;
break;
}
// check translation
constexpr F32 TRANSLATE_THRESHOLD = 0.01f;
if ((last_camera_pos_agent - camera_pos_agent).magVec() > TRANSLATE_THRESHOLD)
{
send_update = true;
break;
}
// check camera rotation
// Note: we are using the sine small angle approximation trick here
constexpr F32 RADIANS_PER_DEGREE = F_PI / 360.f;
constexpr F32 CAMERA_AT_THRESHOLD = 0.2f * RADIANS_PER_DEGREE;
if ((last_camera_at - camera_at).magVec() > CAMERA_AT_THRESHOLD)
{
send_update = true;
break;
}
// check head rotation
constexpr F64 MIN_HEAD_ROT_QDOT = 0.9997; // ~= 2.5 degrees -- if its less than this we need to update head_rot
constexpr F64 MAX_HEAD_ROT_QDOT = 0.99999; // ~= 0.5 degrees -- if its greater than this then we consider it close enough
if (fabs((F64)(dot(last_body_rot, body_rotation))) < MIN_HEAD_ROT_QDOT)
{
send_update = true;
break;
}
F64 head_rot_qdot = fabs((F64)(dot(last_head_rot, head_rotation)));
if (head_rot_qdot > MAX_HEAD_ROT_QDOT)
{
// close enough
return;
}
else if (head_rot_qdot < MIN_HEAD_ROT_QDOT)
{
// way off
send_update = true;
break;
}
// Finally, if we get here then head_rot_qdot is somewhere between MIN_ and MAX_HEAD_ROT_QDOT
if (head_rot_chg < MAX_HEAD_ROT_QDOT && duplicate_count < AGENT_UPDATES_PER_SECOND)
{
// The head_rotation is sent for updating things like attached guns.
// We only trigger a new update when head_rotation deviates beyond
// some threshold from the last update, however this can break fine
// adjustments when trying to aim an attached gun, so what we do here
// (where we would normally skip sending an update when nothing has changed)
// is gradually reduce the threshold to allow a better update to
// eventually get sent... should update to within 0.5 degrees in less
// than a second.
if (head_rot_chg < THRESHOLD_HEAD_ROT_QDOT + (MAX_HEAD_ROT_QDOT - THRESHOLD_HEAD_ROT_QDOT) * duplicate_count / AGENT_UPDATES_PER_SECOND)
{
duplicate_count = 0;
}
else
{
return;
}
}
else
{
return;
}
// is linearly increase the min threshold until an update is sent.
// Min threshold should update to MAX_HEAD_ROT_QDOT within THRESHOLD_GROWTH_PERIOD.
constexpr F64 THRESHOLD_GROWTH_PERIOD = 0.5;
constexpr F64 threshold_growth_per_sec = (MAX_HEAD_ROT_QDOT - MIN_HEAD_ROT_QDOT) / THRESHOLD_GROWTH_PERIOD;
send_update = head_rot_qdot < MIN_HEAD_ROT_QDOT + sec_since_last_send * threshold_growth_per_sec;
} while (false);
}
if (duplicate_count < DUP_MSGS && !gDisconnected)
if (!send_update)
{
/* More diagnostics to count AgentUpdate messages
static S32 update_sec = 0;
static S32 update_count = 0;
static S32 max_update_count = 0;
S32 cur_sec = lltrunc( LLTimer::getTotalSeconds() );
update_count += 1;
if (cur_sec != update_sec)
{
if (update_sec != 0)
{
update_sec = cur_sec;
//msg_number = 0;
max_update_count = llmax(max_update_count, update_count);
LL_INFOS() << "Sent " << update_count << " AgentUpdate messages per second, max is " << max_update_count << LL_ENDL;
}
update_sec = cur_sec;
update_count = 0;
}
*/
// Build the message
msg->newMessageFast(_PREHASH_AgentUpdate);
msg->nextBlockFast(_PREHASH_AgentData);
msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
msg->addQuatFast(_PREHASH_BodyRotation, body_rotation);
msg->addQuatFast(_PREHASH_HeadRotation, head_rotation);
msg->addU8Fast(_PREHASH_State, render_state);
msg->addU8Fast(_PREHASH_Flags, flags);
// if (camera_pos_agent.mV[VY] > 255.f)
// {
// LL_INFOS("Messaging") << "Sending camera center " << camera_pos_agent << LL_ENDL;
// }
msg->addVector3Fast(_PREHASH_CameraCenter, camera_pos_agent);
msg->addVector3Fast(_PREHASH_CameraAtAxis, LLViewerCamera::getInstance()->getAtAxis());
msg->addVector3Fast(_PREHASH_CameraLeftAxis, LLViewerCamera::getInstance()->getLeftAxis());
msg->addVector3Fast(_PREHASH_CameraUpAxis, LLViewerCamera::getInstance()->getUpAxis());
msg->addF32Fast(_PREHASH_Far, gAgentCamera.mDrawDistance);
msg->addU32Fast(_PREHASH_ControlFlags, control_flags);
if (gDebugClicks)
{
if (control_flags & AGENT_CONTROL_LBUTTON_DOWN)
{
LL_INFOS("Messaging") << "AgentUpdate left button down" << LL_ENDL;
}
if (control_flags & AGENT_CONTROL_LBUTTON_UP)
{
LL_INFOS("Messaging") << "AgentUpdate left button up" << LL_ENDL;
}
}
gAgent.enableControlFlagReset();
if (!send_reliable)
{
gAgent.sendMessage();
}
else
{
gAgent.sendReliableMessage();
}
// LL_DEBUGS("Messaging") << "agent " << avatar_pos_agent << " cam " << camera_pos_agent << LL_ENDL;
// Copy the old data
last_head_rot = head_rotation;
last_render_state = render_state;
last_camera_pos_agent = camera_pos_agent;
last_camera_at = LLViewerCamera::getInstance()->getAtAxis();
last_camera_left = LLViewerCamera::getInstance()->getLeftAxis();
last_camera_up = LLViewerCamera::getInstance()->getUpAxis();
last_control_flags = control_flags;
last_flags = flags;
return;
}
}
// Build the message
LLMessageSystem* msg = gMessageSystem;
msg->newMessageFast(_PREHASH_AgentUpdate);
msg->nextBlockFast(_PREHASH_AgentData);
msg->addUUIDFast(_PREHASH_AgentID, gAgent.getID());
msg->addUUIDFast(_PREHASH_SessionID, gAgent.getSessionID());
msg->addQuatFast(_PREHASH_BodyRotation, body_rotation);
msg->addQuatFast(_PREHASH_HeadRotation, head_rotation);
msg->addU8Fast(_PREHASH_State, render_state);
msg->addU8Fast(_PREHASH_Flags, flags);
msg->addVector3Fast(_PREHASH_CameraCenter, camera_pos_agent);
msg->addVector3Fast(_PREHASH_CameraAtAxis, camera_at);
msg->addVector3Fast(_PREHASH_CameraLeftAxis, LLViewerCamera::getInstance()->getLeftAxis());
msg->addVector3Fast(_PREHASH_CameraUpAxis, LLViewerCamera::getInstance()->getUpAxis());
msg->addF32Fast(_PREHASH_Far, gAgentCamera.mDrawDistance);
msg->addU32Fast(_PREHASH_ControlFlags, control_flags);
if (gDebugClicks)
{
if (control_flags & AGENT_CONTROL_LBUTTON_DOWN)
{
LL_INFOS("Messaging") << "AgentUpdate left button down" << LL_ENDL;
}
if (control_flags & AGENT_CONTROL_LBUTTON_UP)
{
LL_INFOS("Messaging") << "AgentUpdate left button up" << LL_ENDL;
}
}
if (send_reliable)
{
gAgent.sendReliableMessage();
}
else
{
gAgent.sendMessage();
}
// remember last update data
last_send_time = now;
last_control_flags = control_flags;
last_render_state = render_state;
last_flags = flags;
last_body_rot = body_rotation;
last_head_rot = head_rotation;
last_camera_pos_agent = camera_pos_agent;
last_camera_at = camera_at;
}
// sounds can arrive before objects, store them for a short time
// Note: this is a workaround for MAINT-4743, real fix would be to make