BlSphere.cpp

// BlSphere.cpp: implementation of the BlSphere class.
//

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

namespace BulletAnimatSim
{
        namespace Environment
        {
                namespace Bodies
                {

// Construction/Destruction

BlSphere::BlSphere()
{
        SetThisPointers();
}

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

void BlSphere::CreateGraphicsGeometry()
{
        m_osgGeometry = CreateSphereGeometry(LatitudeSegments(), LongtitudeSegments(), m_fltRadius);
}

void BlSphere::CreatePhysicsGeometry()
{
        if(IsCollisionObject())
    {
        DeleteCollisionGeometry();
    
        CalculateVolumeAndAreas();
        m_eBodyType = SPHERE_SHAPE_PROXYTYPE;
        m_btCollisionShape = new btSphereShape( m_fltRadius );
    }
}

void BlSphere::CalculateVolumeAndAreas()
{
    m_fltVolume = (4/3.0) * osg::PI * m_fltRadius * m_fltRadius * m_fltRadius;
    m_vArea.x = m_vArea.y = m_vArea.z = osg::PI * m_fltRadius * m_fltRadius;

    if(m_fltMass < 0)
    {
        float fltMass = m_fltVolume * m_fltDensity;
        Mass(fltMass, false, false);
    }
}

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

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

void BlSphere::CreateJoints()
{
        if(m_lpJointToParent)
                m_lpJointToParent->CreateJoint();

        Sphere::CreateJoints();
        BlRigidBody::Initialize();
}

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