OpenSimMirror/OpenSim/Region/Physics/OdePlugin/ODECharacter.cs

872 lines
31 KiB
C#

/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
using System;
using Axiom.Math;
using Ode.NET;
using OpenSim.Framework;
using OpenSim.Region.Physics.Manager;
using System.Runtime.InteropServices; // rex
namespace OpenSim.Region.Physics.OdePlugin
{
/// <summary>
/// Various properties that ODE uses for AMotors but isn't exposed in ODE.NET so we must define them ourselves.
/// </summary>
public enum dParam : int
{
LowStop = 0,
HiStop = 1,
Vel = 2,
FMax = 3,
FudgeFactor = 4,
Bounce = 5,
CFM = 6,
ERP = 7,
StopCFM = 8,
LoStop2 = 256,
HiStop2 = 257,
LoStop3 = 512,
HiStop3 = 513
}
public class OdeCharacter : PhysicsActor
{
//private static readonly log4net.ILog m_log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
private PhysicsVector _position;
private d.Vector3 _zeroPosition;
private d.Matrix3 m_StandUpRotation;
private bool _zeroFlag = false;
private bool m_lastUpdateSent = false;
private PhysicsVector _velocity;
private PhysicsVector _target_velocity;
private PhysicsVector _acceleration;
private PhysicsVector m_rotationalVelocity;
private float m_mass = 80f;
private float m_density = 60f;
private bool m_pidControllerActive = true;
private float PID_D = 800.0f;
private float PID_P = 900.0f;
private static float POSTURE_SERVO = 10000.0f;
public static float CAPSULE_RADIUS = 0.37f;
public float CAPSULE_LENGTH = 2.140599f;
private float m_tensor = 3800000f;
private bool flying = false;
private bool m_iscolliding = false;
private bool m_iscollidingGround = false;
private bool m_wascolliding = false;
private bool m_wascollidingGround = false;
private bool m_iscollidingObj = false;
private bool m_wascollidingObj = false;
private bool m_alwaysRun = false;
private bool m_hackSentFall = false;
private bool m_hackSentFly = false;
private bool m_foundDebian = false;
private CollisionLocker ode;
private string m_name = String.Empty;
private bool[] m_colliderarr = new bool[11];
private bool[] m_colliderGroundarr = new bool[11];
private bool jumping = false;
//private float gravityAccel;
public IntPtr Body;
private GCHandle gchBody; // rex
private OdeScene _parent_scene;
public IntPtr Shell;
private GCHandle gchShell; // rex
public IntPtr Amotor;
public d.Mass ShellMass;
public bool collidelock = false;
public OdeCharacter(String avName, OdeScene parent_scene, PhysicsVector pos, CollisionLocker dode, PhysicsVector size)
{
ode = dode;
_velocity = new PhysicsVector();
_target_velocity = new PhysicsVector();
_position = pos;
_acceleration = new PhysicsVector();
_parent_scene = parent_scene;
if (System.Environment.OSVersion.Platform == PlatformID.Unix)
{
m_foundDebian = true;
m_tensor = 2000000f;
}
else
{
m_tensor = 1300000f;
}
m_StandUpRotation =
new d.Matrix3(0.5f, 0.7071068f, 0.5f, -0.7071068f, 0f, 0.7071068f, 0.5f, -0.7071068f,
0.5f);
for (int i = 0; i < 11; i++)
{
m_colliderarr[i] = false;
}
CAPSULE_LENGTH = (size.Z - ((size.Z * 0.52f)));
lock (OdeScene.OdeLock)
{
AvatarGeomAndBodyCreation(pos.X, pos.Y, pos.Z, m_tensor);
int dAMotorEuler = 1;
Shell = d.CreateCapsule(parent_scene.space, CAPSULE_RADIUS, CAPSULE_LENGTH);
gchShell = GCHandle.Alloc(Shell, GCHandleType.Pinned); // rex
d.MassSetCapsule(out ShellMass, m_density, 3, CAPSULE_RADIUS, CAPSULE_LENGTH);
Body = d.BodyCreate(parent_scene.world);
gchBody = GCHandle.Alloc(Body, GCHandleType.Pinned); // rex
d.BodySetMass(Body, ref ShellMass);
d.BodySetPosition(Body, pos.X, pos.Y, pos.Z);
d.GeomSetBody(Shell, Body);
d.BodySetRotation(Body, ref m_StandUpRotation);
//Amotor = d.JointCreateAMotor(parent_scene.world, IntPtr.Zero);
//d.JointAttach(Amotor, Body, IntPtr.Zero);
//d.JointSetAMotorMode(Amotor, dAMotorEuler);
//d.JointSetAMotorNumAxes(Amotor, 3);
//d.JointSetAMotorAxis(Amotor, 0, 0, 1, 0, 0);
//d.JointSetAMotorAxis(Amotor, 1, 0, 0, 1, 0);
///d.JointSetAMotorAxis(Amotor, 2, 0, 0, 0, 1);
//d.JointSetAMotorAngle(Amotor, 0, 0);
//d.JointSetAMotorAngle(Amotor, 1, 0);
//d.JointSetAMotorAngle(Amotor, 2, 0);
//d.JointSetAMotorParam(Amotor, 0, -0);
//d.JointSetAMotorParam(Amotor, 0x200, -0);
//d.JointSetAMotorParam(Amotor, 0x100, -0);
// d.JointSetAMotorParam(Amotor, 0, 0);
// d.JointSetAMotorParam(Amotor, 3, 0);
// d.JointSetAMotorParam(Amotor, 2, 0);
}
m_name = avName;
parent_scene.geom_name_map[Shell] = avName;
parent_scene.actor_name_map[Shell] = (PhysicsActor) this;
}
public override int PhysicsActorType
{
get { return (int) ActorTypes.Agent; }
set { return; }
}
/// <summary>
/// If this is set, the avatar will move faster
/// </summary>
public override bool SetAlwaysRun
{
get { return m_alwaysRun; }
set { m_alwaysRun = value; }
}
public override bool Grabbed
{
set { return; }
}
public override bool Selected
{
set { return; }
}
public override bool IsPhysical
{
get { return false; }
set { return; }
}
public override bool ThrottleUpdates
{
get { return false; }
set { return; }
}
public override bool Flying
{
get { return flying; }
set { flying = value; }
}
/// <summary>
/// Returns if the avatar is colliding in general.
/// This includes the ground and objects and avatar.
/// </summary>
public override bool IsColliding
{
get { return m_iscolliding; }
set
{
int i;
int truecount = 0;
int falsecount = 0;
if (m_colliderarr.Length >= 10)
{
for (i = 0; i < 10; i++)
{
m_colliderarr[i] = m_colliderarr[i + 1];
}
}
m_colliderarr[10] = value;
for (i = 0; i < 11; i++)
{
if (m_colliderarr[i])
{
truecount++;
}
else
{
falsecount++;
}
}
// Equal truecounts and false counts means we're colliding with something.
if (falsecount > 1.2*truecount)
{
m_iscolliding = false;
}
else
{
m_iscolliding = true;
}
if (m_wascolliding != m_iscolliding)
{
//base.SendCollisionUpdate(new CollisionEventUpdate());
}
m_wascolliding = m_iscolliding;
}
}
/// <summary>
/// Returns if an avatar is colliding with the ground
/// </summary>
public override bool CollidingGround
{
get { return m_iscollidingGround; }
set
{
// Collisions against the ground are not really reliable
// So, to get a consistant value we have to average the current result over time
// Currently we use 1 second = 10 calls to this.
int i;
int truecount = 0;
int falsecount = 0;
if (m_colliderGroundarr.Length >= 10)
{
for (i = 0; i < 10; i++)
{
m_colliderGroundarr[i] = m_colliderGroundarr[i + 1];
}
}
m_colliderGroundarr[10] = value;
for (i = 0; i < 11; i++)
{
if (m_colliderGroundarr[i])
{
truecount++;
}
else
{
falsecount++;
}
}
// Equal truecounts and false counts means we're colliding with something.
if (falsecount > 1.2*truecount)
{
m_iscollidingGround = false;
}
else
{
m_iscollidingGround = true;
}
if (m_wascollidingGround != m_iscollidingGround)
{
//base.SendCollisionUpdate(new CollisionEventUpdate());
}
m_wascollidingGround = m_iscollidingGround;
}
}
/// <summary>
/// Returns if the avatar is colliding with an object
/// </summary>
public override bool CollidingObj
{
get { return m_iscollidingObj; }
set
{
m_iscollidingObj = value;
if (value)
m_pidControllerActive = false;
else
m_pidControllerActive = true;
}
}
/// <summary>
/// turn the PID controller on or off.
/// The PID Controller will turn on all by itself in many situations
/// </summary>
/// <param name="status"></param>
public void SetPidStatus(bool status)
{
m_pidControllerActive = status;
}
public override bool Stopped
{
get { return _zeroFlag; }
}
/// <summary>
/// This 'puts' an avatar somewhere in the physics space.
/// Not really a good choice unless you 'know' it's a good
/// spot otherwise you're likely to orbit the avatar.
/// </summary>
public override PhysicsVector Position
{
get { return _position; }
set
{
lock (OdeScene.OdeLock)
{
d.BodySetPosition(Body, value.X, value.Y, value.Z);
_position = value;
}
}
}
public override PhysicsVector RotationalVelocity
{
get { return m_rotationalVelocity; }
set { m_rotationalVelocity = value; }
}
/// <summary>
/// This property sets the height of the avatar only. We use the height to make sure the avatar stands up straight
/// and use it to offset landings properly
/// </summary>
public override PhysicsVector Size
{
get { return new PhysicsVector(CAPSULE_RADIUS*2, CAPSULE_RADIUS*2, CAPSULE_LENGTH); }
set
{
m_pidControllerActive = true;
lock (OdeScene.OdeLock)
{
d.JointDestroy(Amotor);
PhysicsVector SetSize = value;
float prevCapsule = CAPSULE_LENGTH;
float capsuleradius = CAPSULE_RADIUS;
//capsuleradius = 0.2f;
CAPSULE_LENGTH = (SetSize.Z - ((SetSize.Z*0.52f))); // subtract 43% of the size
//m_log.Info("[SIZE]: " + CAPSULE_LENGTH.ToString());
d.BodyDestroy(Body);
gchBody.Free(); // rex
_parent_scene.waitForSpaceUnlock(_parent_scene.space);
d.GeomDestroy(Shell);
AvatarGeomAndBodyCreation(_position.X, _position.Y,
_position.Z + (Math.Abs(CAPSULE_LENGTH - prevCapsule) * 2), m_tensor);
Velocity = new PhysicsVector(0f, 0f, 0f);
gchShell.Free(); // rex
//MainLog.Instance.Verbose("PHYSICS", "Set Avatar Height To: " + (CAPSULE_RADIUS + CAPSULE_LENGTH));
Shell = d.CreateCapsule(_parent_scene.space, capsuleradius, CAPSULE_LENGTH);
gchShell = GCHandle.Alloc(Shell, GCHandleType.Pinned); // rex
d.MassSetCapsule(out ShellMass, m_density, 3, CAPSULE_RADIUS, CAPSULE_LENGTH);
Body = d.BodyCreate(_parent_scene.world);
gchBody = GCHandle.Alloc(Body, GCHandleType.Pinned); // rex
d.BodySetMass(Body, ref ShellMass);
d.BodySetPosition(Body, _position.X, _position.Y,
_position.Z + Math.Abs(CAPSULE_LENGTH - prevCapsule));
d.GeomSetBody(Shell, Body);
}
_parent_scene.geom_name_map[Shell] = m_name;
_parent_scene.actor_name_map[Shell] = (PhysicsActor) this;
}
}
/// <summary>
/// This creates the Avatar's physical Surrogate at the position supplied
/// </summary>
/// <param name="npositionX"></param>
/// <param name="npositionY"></param>
/// <param name="npositionZ"></param>
private void AvatarGeomAndBodyCreation(float npositionX, float npositionY, float npositionZ, float tensor)
{
if (System.Environment.OSVersion.Platform == PlatformID.Unix)
{
m_foundDebian = true;
m_tensor = 2000000f;
}
else
{
m_tensor = 550000f;
}
int dAMotorEuler = 1;
_parent_scene.waitForSpaceUnlock(_parent_scene.space);
Shell = d.CreateCapsule(_parent_scene.space, CAPSULE_RADIUS, CAPSULE_LENGTH);
d.MassSetCapsuleTotal(out ShellMass, m_mass, 2, CAPSULE_RADIUS, CAPSULE_LENGTH);
Body = d.BodyCreate(_parent_scene.world);
d.BodySetPosition(Body, npositionX, npositionY, npositionZ);
d.BodySetMass(Body, ref ShellMass);
d.Matrix3 m_caprot;
// 90 Stand up on the cap of the capped cyllinder
d.RFromAxisAndAngle(out m_caprot, 1, 0, 1, (float)(Math.PI / 2));
d.GeomSetRotation(Shell, ref m_caprot);
d.BodySetRotation(Body, ref m_caprot);
d.GeomSetBody(Shell, Body);
// The purpose of the AMotor here is to keep the avatar's physical
// surrogate from rotating while moving
Amotor = d.JointCreateAMotor(_parent_scene.world, IntPtr.Zero);
d.JointAttach(Amotor, Body, IntPtr.Zero);
d.JointSetAMotorMode(Amotor, dAMotorEuler);
d.JointSetAMotorNumAxes(Amotor, 3);
d.JointSetAMotorAxis(Amotor, 0, 0, 1, 0, 0);
d.JointSetAMotorAxis(Amotor, 1, 0, 0, 1, 0);
d.JointSetAMotorAxis(Amotor, 2, 0, 0, 0, 1);
d.JointSetAMotorAngle(Amotor, 0, 0);
d.JointSetAMotorAngle(Amotor, 1, 0);
d.JointSetAMotorAngle(Amotor, 2, 0);
// These lowstops and high stops are effectively (no wiggle room)
d.JointSetAMotorParam(Amotor, (int)dParam.LowStop, -0.000000000001f);
d.JointSetAMotorParam(Amotor, (int)dParam.LoStop3, -0.000000000001f);
d.JointSetAMotorParam(Amotor, (int)dParam.LoStop2, -0.000000000001f);
d.JointSetAMotorParam(Amotor, (int)dParam.HiStop, 0.000000000001f);
d.JointSetAMotorParam(Amotor, (int)dParam.HiStop3, 0.000000000001f);
d.JointSetAMotorParam(Amotor, (int)dParam.HiStop2, 0.000000000001f);
// Fudge factor is 1f by default, we're setting it to 0. We don't want it to Fudge or the
// capped cyllinder will fall over
d.JointSetAMotorParam(Amotor, (int)dParam.FudgeFactor, 0f);
d.JointSetAMotorParam(Amotor, (int)dParam.FMax, tensor);
//d.Matrix3 bodyrotation = d.BodyGetRotation(Body);
//d.QfromR(
//d.Matrix3 checkrotation = new d.Matrix3(0.7071068,0.5, -0.7071068,
//
//m_log.Info("[PHYSICSAV]: Rotation: " + bodyrotation.M00 + " : " + bodyrotation.M01 + " : " + bodyrotation.M02 + " : " + bodyrotation.M10 + " : " + bodyrotation.M11 + " : " + bodyrotation.M12 + " : " + bodyrotation.M20 + " : " + bodyrotation.M21 + " : " + bodyrotation.M22);
//standupStraight();
}
//
/// <summary>
/// Uses the capped cyllinder volume formula to calculate the avatar's mass.
/// This may be used in calculations in the scene/scenepresence
/// </summary>
public override float Mass
{
get
{
float AVvolume = (float) (Math.PI*Math.Pow(CAPSULE_RADIUS, 2)*CAPSULE_LENGTH);
return m_density*AVvolume;
}
}
private void standupStraight()
{
// The purpose of this routine here is to quickly stabilize the Body while it's popped up in the air.
// The amotor needs a few seconds to stabilize so without it, the avatar shoots up sky high when you
// change appearance and when you enter the simulator
// After this routine is done, the amotor stabilizes much quicker
d.Vector3 feet;
d.Vector3 head;
d.BodyGetRelPointPos(Body, 0.0f, 0.0f, -1.0f, out feet);
d.BodyGetRelPointPos(Body, 0.0f, 0.0f, 1.0f, out head);
float posture = head.Z - feet.Z;
// restoring force proportional to lack of posture:
float servo = (2.5f - posture) * POSTURE_SERVO;
d.BodyAddForceAtRelPos(Body, 0.0f, 0.0f, servo, 0.0f, 0.0f, 1.0f);
d.BodyAddForceAtRelPos(Body, 0.0f, 0.0f, -servo, 0.0f, 0.0f, -1.0f);
//d.Matrix3 bodyrotation = d.BodyGetRotation(Body);
//m_log.Info("[PHYSICSAV]: Rotation: " + bodyrotation.M00 + " : " + bodyrotation.M01 + " : " + bodyrotation.M02 + " : " + bodyrotation.M10 + " : " + bodyrotation.M11 + " : " + bodyrotation.M12 + " : " + bodyrotation.M20 + " : " + bodyrotation.M21 + " : " + bodyrotation.M22);
}
public override PhysicsVector Force
{
get { return new PhysicsVector(_target_velocity.X, _target_velocity.Y, _target_velocity.Z); }
}
public override PhysicsVector CenterOfMass
{
get { return PhysicsVector.Zero; }
}
public override PhysicsVector GeometricCenter
{
get { return PhysicsVector.Zero; }
}
public override PrimitiveBaseShape Shape
{
set { return; }
}
public override PhysicsVector Velocity
{
get {
// There's a problem with PhysicsVector.Zero! Don't Use it Here!
if (_zeroFlag)
return new PhysicsVector(0f, 0f, 0f);
m_lastUpdateSent = false;
return _velocity;
}
set
{
m_pidControllerActive = true;
_target_velocity = value;
}
}
public override float CollisionScore
{
get { return 0f; }
}
public override bool Kinematic
{
get { return false; }
set { }
}
public override Quaternion Orientation
{
get { return Quaternion.Identity; }
set {
//Matrix3 or = Orientation.ToRotationMatrix();
//d.Matrix3 ord = new d.Matrix3(or.m00, or.m10, or.m20, or.m01, or.m11, or.m21, or.m02, or.m12, or.m22);
//d.BodySetRotation(Body, ref ord);
}
}
public override PhysicsVector Acceleration
{
get { return _acceleration; }
}
public void SetAcceleration(PhysicsVector accel)
{
m_pidControllerActive = true;
_acceleration = accel;
}
/// <summary>
/// Adds the force supplied to the Target Velocity
/// The PID controller takes this target velocity and tries to make it a reality
/// </summary>
/// <param name="force"></param>
public override void AddForce(PhysicsVector force)
{
m_pidControllerActive = true;
_target_velocity.X += force.X;
_target_velocity.Y += force.Y;
_target_velocity.Z += force.Z;
//m_lastUpdateSent = false;
}
/// <summary>
/// After all of the forces add up with 'add force' we apply them with doForce
/// </summary>
/// <param name="force"></param>
public void doForce(PhysicsVector force)
{
if (!collidelock)
{
d.BodyAddForce(Body, force.X, force.Y, force.Z);
//d.BodySetRotation(Body, ref m_StandUpRotation);
//standupStraight();
}
}
public override void SetMomentum(PhysicsVector momentum)
{
}
/// <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 (System.Environment.OSVersion.Platform == PlatformID.Unix)
{
PID_D = 3200.0f;
PID_P = 1400.0f;
}
else
{
PID_D = 2200.0f;
PID_P = 900.0f;
}
if (m_pidControllerActive == false)
{
_zeroPosition = d.BodyGetPosition(Body);
}
//PidStatus = true;
PhysicsVector vec = new PhysicsVector();
d.Vector3 vel = d.BodyGetLinearVel(Body);
float movementdivisor = 1f;
if (!m_alwaysRun)
{
movementdivisor = 1.3f;
}
else
{
movementdivisor = 0.8f;
}
// 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 flying and colliding with 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 flying and colliding with something
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 += (9.8f*m_mass);
}
doForce(vec);
}
/// <summary>
/// Updates the reported position and velocity. This essentially sends the data up to ScenePresence.
/// </summary>
public void UpdatePositionAndVelocity()
{
// no lock; called from Simulate() -- if you call this from elsewhere, gotta lock or do Monitor.Enter/Exit!
d.Vector3 vec = d.BodyGetPosition(Body);
// kluge to keep things in bounds. ODE lets dead avatars drift away (they should be removed!)
if (vec.X < 0.0f) vec.X = 0.0f;
if (vec.Y < 0.0f) vec.Y = 0.0f;
if (vec.X > 255.95f) vec.X = 255.95f;
if (vec.Y > 255.95f) vec.Y = 255.95f;
_position.X = vec.X;
_position.Y = vec.Y;
_position.Z = vec.Z;
// Did we move last? = zeroflag
// This helps keep us from sliding all over
if (_zeroFlag)
{
_velocity.X = 0.0f;
_velocity.Y = 0.0f;
_velocity.Z = 0.0f;
// Did we send out the 'stopped' message?
if (!m_lastUpdateSent)
{
m_lastUpdateSent = true;
//base.RequestPhysicsterseUpdate();
}
}
else
{
m_lastUpdateSent = false;
vec = d.BodyGetLinearVel(Body);
_velocity.X = (vec.X);
_velocity.Y = (vec.Y);
_velocity.Z = (vec.Z);
if (_velocity.Z < -6 && !m_hackSentFall)
{
// Collisionupdates will be used in the future, right now the're not being used.
m_hackSentFall = true;
//base.SendCollisionUpdate(new CollisionEventUpdate());
m_pidControllerActive = false;
}
else if (flying && !m_hackSentFly)
{
//m_hackSentFly = true;
//base.SendCollisionUpdate(new CollisionEventUpdate());
}
else
{
m_hackSentFly = false;
m_hackSentFall = false;
}
}
}
/// <summary>
/// Cleanup the things we use in the scene.
/// </summary>
public void Destroy()
{
lock (OdeScene.OdeLock)
{
// Kill the Amotor
d.JointDestroy(Amotor);
//kill the Geometry
_parent_scene.waitForSpaceUnlock(_parent_scene.space);
d.GeomDestroy(Shell);
_parent_scene.geom_name_map.Remove(Shell);
//kill the body
d.BodyDestroy(Body);
}
}
public override void CrossingFailure()
{
}
}
}