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when avatar enters the new region.
This commit addresses the following issues were causing velocity to be set to 0 on the new region, disrupting flight in particular
* Full avatar updates contained no velocity information, which does appear to have some effect in testing.
* BulletSim was always setting the velocity to 0 for the new BSCharacter. Now, physics engines take a velocity parameter when setting up characters so we can avoid this.
This patch applies to both Bullet and ODE.
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unnecessary object update if the prim was not moving to target.
This involves making PhysicsActor.PIDActive get as well as set.
On physics components that don't implement this (all characters and some phys engines) we return false.
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This is related to http://opensimulator.org/mantis/view.php?id=7067 .
But that bug complains about BulletSim, and this fix is for ODE.
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condition check without changing the logic
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forward when moving south or west.
Addresses http://opensimulator.org/mantis/view.php?id=5003
Thanks to UbitUmarov for this fix.
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'pushability' av_planted see OpenSimDefaults.ini. Use when you have unruly visitors that rudely push each other around. Still allows a small amount of movement based on the avatar movement PID controller settings. You can increase the spring tension in the PID controller and really prevent any movement if you would like.
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reporting on logout, rather than stopping clearing their collision events.
This occurred in b18c8c8 (Thu May 17 2012).
This was a cause of very occasional race conditions and likely memory leakage as clients came and went from the region.
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some local variables in line with code conventions. Add commented out EQG log lines for future use.
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unsubscribe from collisions, in order to avoid a race condition.
Since this is done directly from ScenePresence, it can lead to a race condition with the simulator loop.
There's no real point doing it anyway since the clear will be done very shortly afterwards by the simulate loop and either there are no events (for a new avatar) or events don't matter (for a departing avatar).
This matches existing behaviour in OdePrim
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(sqrt(2)) rather than doing it multiple times on every move.
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If velocity reaches 256 in any vector then bad things happen with ODE, so we now clamp this value.
In addition, a falling avatar is clamped by default at 54 m/s, which is the same as a falling skydiver.
This also appears to be the value used on the linden lab grid.
This should resolve http://opensimulator.org/mantis/view.php?id=5882
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prevent ODE crashes on simulators running more than one region.
It turns out that calls to Collide() are not thread-safe even for objects in different ODE physics worlds due to ODE static caches.
For simulators running multiple regions, not serializing calls from different scene loops will sooner or later cause OpenSim to crash with a native stack trace referencing OBBCollider.
This affects the default OPCODE collider but not GIMPACT. However, GIMPACT fails for other reasons under some current simulator loads.
ODE provides a thread local storage option, but as of ODE r1755 (and r1840) DLLs compiled with this crash OpenSim immediately.
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error log lines.
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constructor
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when we've already passed size information to the avatar at PhysicsScene.AddAvatar()
Eliminate some copypasta for height setting in OdeCharacter
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Stop hiding RemoveAvatar failure, add log messages when characters are removed through defects or re-added unexpectedly.
Add commented out log lines for future use.
Use automatic property for PhysicsActor for better code readability and simplicity
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we can inspect count of taint lists instead.
also groups OdeCharacter.CreateOdeStructures() and DestroyOdeStructures() together
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remove the character whilst iterating over the list.
This commit also removes locking on OdeScene._characters since code is single threaded
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match existing DestroyOdeStructures()
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nothing right now
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point of detection rather than later on.
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DestroyODEStructures()/AvatarGeomAndBodyCreation().
This saves us having to do it separately when a character capsule size is changed
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actor maps
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the actor reference in OdeScene.actor_name_map rather than leaving it dangling.
This also largely centralizes adds/removes in OdeScene.AddCharacter()/RemoveCharacter()
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maintaining their own properties
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own private m_localID property but leaving get to return the then unset PhysicsActor.LocalId!
Instead, just have both subclasses use the PhysicsActor.LocalID property.
This restores collision functionality that fell away in 45c7789 yesterday
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ODEPrim.changevelocity()
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than directly.
This isn't a perfect solution since there can be a race between the taint processing and taint setting, as force needs to be reset after processing.
Needs careful locking in the future.
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ODECharacter position and position and velocity for ODEPrims.
This is to help stop surprises if the velocity is set in the middle of physics calculations, though this probably isn't a huge problem.
It's more for consistency and for the next step of removing some scene locks
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directly where possible, instead of transferring X, Y and Z components separately
some of this is probably a hold over from using ODE.Vector3, which is still necessary in some places.
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ODECharacter.ProcessTaints() though this makes no practical difference
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setting position at the same time as taint appears to undermine the whole purpose of taint
testing doesn't reveal any obvious regressions in doing this
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from collision events
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CollisionEventsThisFrame every time we need to send some new ones, reuse the existing one instead.
This assumes that the listener is using the data synchronously, which is currently the case.
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Despite its name, this wasn't actually being used in any collision checking
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Eliminate redundant argument on ProcessTaints()
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into a DestroyOdeStructures() method
also adds some method doc
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When upgrading the previously child agent to a root, the code was setting the Size parameter on the ODECharacter PhysicsActor.
This in turn reset Velocity, which cause the border stall.
I'm fixing this by commenting out the Velocity = Vector3.Zero lines since they don't appear to play a useful purpose
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