BlPlane.cpp

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#include "StdAfx.h"
#include "BlJoint.h"
#include "BlMotorizedJoint.h"
#include "BlRigidBody.h"
#include "BlPlane.h"
#include "BlSimulator.h"

namespace BulletAnimatSim
{
        namespace Environment
        {
                namespace Bodies
                {

BlPlane::BlPlane()
{
        SetThisPointers();
        m_bCullBackfaces = true; //we want back face culling on by default for planes.
}

BlPlane::~BlPlane()
{
        try
        {
                DeleteGraphics();
                DeletePhysics(false);
        }
        catch(...)
        {Std_TraceMsg(0, "Caught Error in desctructor of BlPlane/\r\n", "", -1, false, true);}
}

void BlPlane::CreateGraphicsGeometry()
{
        m_osgGeometry = CreatePlaneGeometry(CornerX(), CornerY(), m_ptSize.x, m_ptSize.y, GridX(), GridY(), false);
}

void BlPlane::CreatePhysicsGeometry()
{
    if(IsCollisionObject())
    {
        DeleteCollisionGeometry();

        m_fltMass = 0;  //Plane is always a static object.

                if(m_osgMT.valid())
                        OsgMovableItem::UpdatePositionAndRotationFromMatrix(m_osgMT->getMatrix());

                CStdFPoint vPos = m_lpStructure->Position();
        m_eBodyType = STATIC_PLANE_PROXYTYPE;
        m_btCollisionShape =  new btStaticPlaneShape(btVector3(0,1,0), vPos.y);
    }
}

void BlPlane::CreateParts()
{ 
        CreateGeometry();

        //Create the geometry and osg drawable nodes.
        m_eControlType = DynamicsControlType::ControlNode;  //This is not a dynamic part.

        BlRigidBody::CreateItem();
        Plane::CreateParts();
}

void BlPlane::CreateDynamicPart()
{
    BlSimulator *lpSim = GetBlSimulator();

        if(lpSim && m_lpThisRB && m_lpThisAB)
        {
        //m_btCollisionShape = new btStaticPlaneShape(btVector3(0,1,0), 1);
        btRigidBody::btRigidBodyConstructionInfo rbInfo( 0., NULL, m_btCollisionShape, btVector3(0,0,0) );

                rbInfo.m_friction = m_lpMaterial->FrictionLinearPrimary();
        rbInfo.m_rollingFriction = m_lpMaterial->FrictionAngularPrimaryConverted();
                rbInfo.m_restitution = m_lpMaterial->Restitution();
        rbInfo.m_linearDamping = m_lpThisRB->LinearVelocityDamping();
        rbInfo.m_angularDamping = m_lpThisRB->AngularVelocityDamping();

        m_btPart = new btRigidBody(rbInfo);

        if(!m_lpBulletData)
            m_lpBulletData = new BlBulletData(this, false);
        m_btPart->setUserPointer((void *) m_lpBulletData);

        lpSim->DynamicsWorld()->addRigidBody( m_btPart, AnimatCollisionTypes::RIGID_BODY, ALL_COLLISIONS );

        m_osgbMotion = dynamic_cast<osgbDynamics::MotionState *>(m_btPart->getMotionState());
        }
}

//
//void BlPlane::ResizePhysicsGeometry()
//{
//}

//Planes can never have fluid interactions/dynamics.
void BlPlane::Physics_FluidDataChanged()
{}

                }               //Bodies
        }                       // Environment
}                               //BulletAnimatSim