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/*
* 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 copyrightD
* 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 OpenSimulator 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 System.Collections.Generic;
using System.Linq;
using System.Text;
using OpenSim.Region.Physics.Manager;
using OMV = OpenMetaverse;
namespace OpenSim.Region.Physics.BulletSPlugin
{
public class BSActorSetForce : BSActor
{
BSFMotor m_forceMotor;
public BSActorSetForce(BSScene physicsScene, BSPhysObject pObj, string actorName)
: base(physicsScene, pObj, actorName)
{
m_forceMotor = null;
m_physicsScene.DetailLog("{0},BSActorSetForce,constructor", m_controllingPrim.LocalID);
}
// BSActor.isActive
public override bool isActive
{
get { return Enabled && m_controllingPrim.IsPhysicallyActive; }
}
// Release any connections and resources used by the actor.
// BSActor.Dispose()
public override void Dispose()
{
Enabled = false;
}
// Called when physical parameters (properties set in Bullet) need to be re-applied.
// Called at taint-time.
// BSActor.Refresh()
public override void Refresh()
{
m_physicsScene.DetailLog("{0},BSActorSetForce,refresh", m_controllingPrim.LocalID);
// If not active any more, get rid of me (shouldn't ever happen, but just to be safe)
if (m_controllingPrim.RawForce == OMV.Vector3.Zero)
{
m_physicsScene.DetailLog("{0},BSActorSetForce,refresh,notSetForce,removing={1}", m_controllingPrim.LocalID, ActorName);
Enabled = false;
return;
}
// If the object is physically active, add the hoverer prestep action
if (isActive)
{
ActivateSetForce();
}
else
{
DeactivateSetForce();
}
}
// The object's physical representation is being rebuilt so pick up any physical dependencies (constraints, ...).
// Register a prestep action to restore physical requirements before the next simulation step.
// Called at taint-time.
// BSActor.RemoveBodyDependencies()
public override void RemoveBodyDependencies()
{
// Nothing to do for the hoverer since it is all software at pre-step action time.
}
// If a hover motor has not been created, create one and start the hovering.
private void ActivateSetForce()
{
if (m_forceMotor == null)
{
// A fake motor that might be used someday
m_forceMotor = new BSFMotor("setForce", 1f, 1f, 1f, 1f);
m_physicsScene.BeforeStep += Mover;
}
}
private void DeactivateSetForce()
{
if (m_forceMotor != null)
{
m_physicsScene.BeforeStep -= Mover;
m_forceMotor = null;
}
}
// Called just before the simulation step. Update the vertical position for hoverness.
private void Mover(float timeStep)
{
// Don't do force while the object is selected.
if (!isActive)
return;
m_physicsScene.DetailLog("{0},BSActorSetForce,preStep,force={1}", m_controllingPrim.LocalID, m_controllingPrim.RawForce);
if (m_controllingPrim.PhysBody.HasPhysicalBody)
{
m_physicsScene.PE.ApplyCentralForce(m_controllingPrim.PhysBody, m_controllingPrim.RawForce);
m_controllingPrim.ActivateIfPhysical(false);
}
// TODO:
}
}
}
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