internal void ProcessTaints()
{
if (m_taintPosition != _position)
{
if (Body != IntPtr.Zero)
{
d.BodySetPosition(Body, m_taintPosition.X, m_taintPosition.Y, m_taintPosition.Z);
_position = m_taintPosition;
}
}
if (m_taintForce != Vector3.Zero)
{
if (Body != IntPtr.Zero)
{
// FIXME: This is not a good solution since it's subject to a race condition if a force is another
// thread sets a new force while we're in this loop (since it could be obliterated by
// m_taintForce = Vector3.Zero. Need to lock ProcessTaints() when we set a new tainted force.
d.BodyAddForce(Body, m_taintForce.X, m_taintForce.Y, m_taintForce.Z);
}
m_taintForce = Vector3.Zero;
}
if (m_taintTargetVelocity != _target_velocity)
{
_target_velocity = m_taintTargetVelocity;
}
if (m_tainted_isPhysical != m_isPhysical)
{
if (m_tainted_isPhysical)
{
// Create avatar capsule and related ODE data
if (!(Shell == IntPtr.Zero && Body == IntPtr.Zero && Amotor == IntPtr.Zero))
{
m_log.Warn("[ODE CHARACTER]: re-creating the following avatar ODE data for " + Name + ", even though it already exists - "
+ (Shell != IntPtr.Zero ? "Shell ":"")
+ (Body != IntPtr.Zero ? "Body ":"")
+ (Amotor != IntPtr.Zero ? "Amotor ":""));
}
CreateOdeStructures(_position.X, _position.Y, _position.Z, m_tensor);
_parent_scene.AddCharacter(this);
}
else
{
_parent_scene.RemoveCharacter(this);
DestroyOdeStructures();
}
m_isPhysical = m_tainted_isPhysical;
}
if (m_tainted_CAPSULE_LENGTH != CAPSULE_LENGTH)
{
if (Shell != IntPtr.Zero && Body != IntPtr.Zero && Amotor != IntPtr.Zero)
{
// m_log.DebugFormat(
// "[ODE CHARACTER]: Changing capsule size from {0} to {1} for {2}",
// CAPSULE_LENGTH, m_tainted_CAPSULE_LENGTH, Name);
m_pidControllerActive = true;
// no lock needed on _parent_scene.OdeLock because we are called from within the thread lock in OdePlugin's simulate()
DestroyOdeStructures();
float prevCapsule = CAPSULE_LENGTH;
CAPSULE_LENGTH = m_tainted_CAPSULE_LENGTH;
CreateOdeStructures(
_position.X,
_position.Y,
_position.Z + (Math.Abs(CAPSULE_LENGTH - prevCapsule) * 2), m_tensor);
// As with Size, we reset velocity. However, this isn't strictly necessary since it doesn't
// appear to stall initial region crossings when done here. Being done for consistency.
// Velocity = Vector3.Zero;
}
else
{
m_log.Warn("[ODE CHARACTER]: trying to change capsule size for " + Name + ", but the following ODE data is missing - "
+ (Shell == IntPtr.Zero ? "Shell ":"")
+ (Body == IntPtr.Zero ? "Body ":"")
+ (Amotor == IntPtr.Zero ? "Amotor ":""));
}
}
}
/// <summary>
/// Called from Simulate
/// This is the avatar's movement control + PID Controller
/// </summary>
/// <param name="timeStep"></param>
public void Move(float timeStep)
{
// no lock; for now it's only called from within Simulate()
// If the PID Controller isn't active then we set our force
// calculating base velocity to the current position
if (Body == IntPtr.Zero)
{
return;
}
if (m_pidControllerActive == false)
{
_zeroPosition = d.BodyGetPosition(Body);
}
//PidStatus = true;
d.Vector3 localpos = d.BodyGetPosition(Body);
PhysicsVector localPos = new PhysicsVector(localpos.X, localpos.Y, localpos.Z);
if (!PhysicsVector.isFinite(localPos))
{
m_log.Warn("[PHYSICS]: Avatar Position is non-finite!");
_parent_scene.RemoveCharacter(this);
// destroy avatar capsule and related ODE data
if (Amotor != IntPtr.Zero)
{
// Kill the Amotor
d.JointDestroy(Amotor);
Amotor = IntPtr.Zero;
}
//kill the Geometry
_parent_scene.waitForSpaceUnlock(_parent_scene.space);
if (Body != IntPtr.Zero)
{
//kill the body
d.BodyDestroy(Body);
Body = IntPtr.Zero;
}
if (Shell != IntPtr.Zero)
{
d.GeomDestroy(Shell);
_parent_scene.geom_name_map.Remove(Shell);
Shell = IntPtr.Zero;
}
return;
}
PhysicsVector vec = new PhysicsVector();
d.Vector3 vel = d.BodyGetLinearVel(Body);
float movementdivisor = 1f;
if (!m_alwaysRun)
{
movementdivisor = walkDivisor;
}
else
{
movementdivisor = runDivisor;
}
// if velocity is zero, use position control; otherwise, velocity control
if (_target_velocity.X == 0.0f && _target_velocity.Y == 0.0f && _target_velocity.Z == 0.0f && m_iscolliding)
{
// keep track of where we stopped. No more slippin' & slidin'
if (!_zeroFlag)
{
_zeroFlag = true;
_zeroPosition = d.BodyGetPosition(Body);
}
if (m_pidControllerActive)
{
// We only want to deactivate the PID Controller if we think we want to have our surrogate
// react to the physics scene by moving it's position.
// Avatar to Avatar collisions
// Prim to avatar collisions
d.Vector3 pos = d.BodyGetPosition(Body);
vec.X = (_target_velocity.X - vel.X) * (PID_D) + (_zeroPosition.X - pos.X) * (PID_P * 2);
vec.Y = (_target_velocity.Y - vel.Y) * (PID_D) + (_zeroPosition.Y - pos.Y) * (PID_P * 2);
if (flying)
{
vec.Z = (_target_velocity.Z - vel.Z) * (PID_D) + (_zeroPosition.Z - pos.Z) * PID_P;
}
}
//PidStatus = true;
}
else
{
m_pidControllerActive = true;
_zeroFlag = false;
if (m_iscolliding && !flying)
{
// We're standing on something
vec.X = ((_target_velocity.X / movementdivisor) - vel.X) * (PID_D);
vec.Y = ((_target_velocity.Y / movementdivisor) - vel.Y) * (PID_D);
}
else if (m_iscolliding && flying)
{
// We're flying and colliding with something
vec.X = ((_target_velocity.X / movementdivisor) - vel.X) * (PID_D / 16);
vec.Y = ((_target_velocity.Y / movementdivisor) - vel.Y) * (PID_D / 16);
}
else if (!m_iscolliding && flying)
{
// we're in mid air suspended
vec.X = ((_target_velocity.X / movementdivisor) - vel.X) * (PID_D / 6);
vec.Y = ((_target_velocity.Y / movementdivisor) - vel.Y) * (PID_D / 6);
}
if (m_iscolliding && !flying && _target_velocity.Z > 0.0f)
{
// We're colliding with something and we're not flying but we're moving
// This means we're walking or running.
d.Vector3 pos = d.BodyGetPosition(Body);
vec.Z = (_target_velocity.Z - vel.Z) * PID_D + (_zeroPosition.Z - pos.Z) * PID_P;
if (_target_velocity.X > 0)
{
vec.X = ((_target_velocity.X - vel.X) / 1.2f) * PID_D;
}
if (_target_velocity.Y > 0)
{
vec.Y = ((_target_velocity.Y - vel.Y) / 1.2f) * PID_D;
}
}
else if (!m_iscolliding && !flying)
{
// we're not colliding and we're not flying so that means we're falling!
// m_iscolliding includes collisions with the ground.
// d.Vector3 pos = d.BodyGetPosition(Body);
if (_target_velocity.X > 0)
{
vec.X = ((_target_velocity.X - vel.X) / 1.2f) * PID_D;
}
if (_target_velocity.Y > 0)
{
vec.Y = ((_target_velocity.Y - vel.Y) / 1.2f) * PID_D;
}
}
if (flying)
{
vec.Z = (_target_velocity.Z - vel.Z) * (PID_D);
}
}
if (flying)
{
vec.Z += ((-1 * _parent_scene.gravityz) * m_mass);
//Added for auto fly height. Kitto Flora
//d.Vector3 pos = d.BodyGetPosition(Body);
float target_altitude = _parent_scene.GetTerrainHeightAtXY(_position.X, _position.Y) + MinimumGroundFlightOffset;
if (_position.Z < target_altitude)
{
vec.Z += (target_altitude - _position.Z) * PID_P * 5.0f;
}
// end add Kitto Flora
}
if (PhysicsVector.isFinite(vec))
{
doForce(vec);
}
else
{
m_log.Warn("[PHYSICS]: Got a NaN force vector in Move()");
m_log.Warn("[PHYSICS]: Avatar Position is non-finite!");
_parent_scene.RemoveCharacter(this);
// destroy avatar capsule and related ODE data
if (Amotor != IntPtr.Zero)
{
// Kill the Amotor
d.JointDestroy(Amotor);
Amotor = IntPtr.Zero;
}
//kill the Geometry
_parent_scene.waitForSpaceUnlock(_parent_scene.space);
if (Body != IntPtr.Zero)
{
//kill the body
d.BodyDestroy(Body);
Body = IntPtr.Zero;
}
if (Shell != IntPtr.Zero)
{
d.GeomDestroy(Shell);
_parent_scene.geom_name_map.Remove(Shell);
Shell = IntPtr.Zero;
}
return;
}
}
public void ProcessTaints(float timestep)
{
if (m_tainted_isPhysical != m_isPhysical)
{
if (m_tainted_isPhysical)
{
// Create avatar capsule and related ODE data
if (!(Shell == IntPtr.Zero && Body == IntPtr.Zero && Amotor == IntPtr.Zero))
{
m_log.Warn("[PHYSICS]: re-creating the following avatar ODE data, even though it already exists - "
+ (Shell != IntPtr.Zero ? "Shell ":"")
+ (Body != IntPtr.Zero ? "Body ":"")
+ (Amotor != IntPtr.Zero ? "Amotor ":""));
}
AvatarGeomAndBodyCreation(_position.X, _position.Y, _position.Z, m_tensor);
_parent_scene.geom_name_map[Shell] = m_name;
_parent_scene.actor_name_map[Shell] = (PhysicsActor)this;
_parent_scene.AddCharacter(this);
}
else
{
_parent_scene.RemoveCharacter(this);
// destroy avatar capsule and related ODE data
if (Amotor != IntPtr.Zero)
{
// Kill the Amotor
d.JointDestroy(Amotor);
Amotor = IntPtr.Zero;
}
//kill the Geometry
_parent_scene.waitForSpaceUnlock(_parent_scene.space);
if (Body != IntPtr.Zero)
{
//kill the body
d.BodyDestroy(Body);
Body = IntPtr.Zero;
}
if (Shell != IntPtr.Zero)
{
d.GeomDestroy(Shell);
_parent_scene.geom_name_map.Remove(Shell);
Shell = IntPtr.Zero;
}
}
m_isPhysical = m_tainted_isPhysical;
}
if (m_tainted_CAPSULE_LENGTH != CAPSULE_LENGTH)
{
if (Shell != IntPtr.Zero && Body != IntPtr.Zero && Amotor != IntPtr.Zero)
{
m_pidControllerActive = true;
// no lock needed on _parent_scene.OdeLock because we are called from within the thread lock in OdePlugin's simulate()
d.JointDestroy(Amotor);
float prevCapsule = CAPSULE_LENGTH;
CAPSULE_LENGTH = m_tainted_CAPSULE_LENGTH;
//m_log.Info("[SIZE]: " + CAPSULE_LENGTH.ToString());
d.BodyDestroy(Body);
d.GeomDestroy(Shell);
AvatarGeomAndBodyCreation(_position.X, _position.Y,
_position.Z + (Math.Abs(CAPSULE_LENGTH - prevCapsule) * 2), m_tensor);
Velocity = new PhysicsVector(0f, 0f, 0f);
_parent_scene.geom_name_map[Shell] = m_name;
_parent_scene.actor_name_map[Shell] = (PhysicsActor)this;
}
else
{
m_log.Warn("[PHYSICS]: trying to change capsule size, but the following ODE data is missing - "
+ (Shell == IntPtr.Zero ? "Shell ":"")
+ (Body == IntPtr.Zero ? "Body ":"")
+ (Amotor == IntPtr.Zero ? "Amotor ":""));
}
}
if (!m_taintPosition.IsIdentical(_position, 0.05f))
{
if (Body != IntPtr.Zero)
{
d.BodySetPosition(Body, m_taintPosition.X, m_taintPosition.Y, m_taintPosition.Z);
_position.X = m_taintPosition.X;
_position.Y = m_taintPosition.Y;
_position.Z = m_taintPosition.Z;
}
}
}
