// Cylinder - Box by CroTeam
// Ported by Nguyen Binh
int dCollideCylinderBox(dxGeom *o1, dxGeom *o2, int flags, dContactGeom *contact, int skip)
{
sCylinderBoxData cData;
// Assign ODE stuff
cData.gCylinder = o1;
cData.gBox = o2;
cData.iFlags = flags;
cData.iSkip = skip;
cData.gContact = contact;
// initialize collider
_cldInitCylinderBox( cData );
// do intersection test and find best separating axis
if(!_cldTestSeparatingAxes( cData ) )
{
// if not found do nothing
return 0;
}
// if best separation axis is not found
if ( cData.iBestAxis == 0 )
{
// this should not happen (we should already exit in that case)
dIASSERT(0);
// do nothing
return 0;
}
dReal fdot = dVector3Dot(cData.vNormal,cData.vCylinderAxis);
// choose which clipping method are we going to apply
if (dFabs(fdot) < REAL(0.9) )
{
// clip cylinder over box
if(!_cldClipCylinderToBox(cData))
{
return 0;
}
}
else
{
_cldClipBoxToCylinder(cData);
}
return cData.nContacts;
}
int sCylinderBoxData::PerformCollisionChecking()
{
// initialize collider
_cldInitCylinderBox();
// do intersection test and find best separating axis
if ( !_cldTestSeparatingAxes() )
{
// if not found do nothing
return 0;
}
// if best separation axis is not found
if ( m_iBestAxis == 0 )
{
// this should not happen (we should already exit in that case)
dIASSERT(0);
// do nothing
return 0;
}
dReal fdot = dVector3Dot(m_vNormal,m_vCylinderAxis);
// choose which clipping method are we going to apply
if (dFabs(fdot) < REAL(0.9) )
{
// clip cylinder over box
if(!_cldClipCylinderToBox())
{
return 0;
}
}
else
{
_cldClipBoxToCylinder();
}
return m_nContacts;
}
