virtual void ProcessIsland(btCollisionObject** bodies,int numBodies,btPersistentManifold** manifolds,int numManifolds, int islandId)
{
if (islandId<0)
{
if (numManifolds + m_numConstraints)
{
///we don't split islands, so all constraints/contact manifolds/bodies are passed into the solver regardless the island id
m_solver->solveGroup( bodies,numBodies,manifolds, numManifolds,&m_sortedConstraints[0],m_numConstraints,m_solverInfo,m_debugDrawer,m_stackAlloc,m_dispatcher);
}
} else
{
//also add all non-contact constraints/joints for this island
btTypedConstraint** startConstraint = 0;
int numCurConstraints = 0;
int i;
//find the first constraint for this island
for (i=0;i<m_numConstraints;i++)
{
if (btGetConstraintIslandId(m_sortedConstraints[i]) == islandId)
{
startConstraint = &m_sortedConstraints[i];
break;
}
}
//count the number of constraints in this island
for (;i<m_numConstraints;i++)
{
if (btGetConstraintIslandId(m_sortedConstraints[i]) == islandId)
{
numCurConstraints++;
}
}
if (m_solverInfo.m_minimumSolverBatchSize<=1)
{
///only call solveGroup if there is some work: avoid virtual function call, its overhead can be excessive
if (numManifolds + numCurConstraints)
{
m_solver->solveGroup( bodies,numBodies,manifolds, numManifolds,startConstraint,numCurConstraints,m_solverInfo,m_debugDrawer,m_stackAlloc,m_dispatcher);
}
} else
{
for (i=0;i<numBodies;i++)
m_bodies.push_back(bodies[i]);
for (i=0;i<numManifolds;i++)
m_manifolds.push_back(manifolds[i]);
for (i=0;i<numCurConstraints;i++)
m_constraints.push_back(startConstraint[i]);
if ((m_constraints.size()+m_manifolds.size())>m_solverInfo.m_minimumSolverBatchSize)
{
processConstraints();
} else
{
//printf("deferred\n");
}
}
}
}
void processConstraints()
{
if (m_manifolds.size() + m_constraints.size()>0)
{
m_solver->solveGroup( &m_bodies[0],m_bodies.size(), &m_manifolds[0], m_manifolds.size(), &m_constraints[0], m_constraints.size() ,m_solverInfo,m_debugDrawer,m_stackAlloc,m_dispatcher);
}
m_bodies.resize(0);
m_manifolds.resize(0);
m_constraints.resize(0);
}
void processConstraints()
{
btCollisionObject** bodies = m_bodies.size()? &m_bodies[0]:0;
btPersistentManifold** manifold = m_manifolds.size()?&m_manifolds[0]:0;
btTypedConstraint** constraints = m_constraints.size()?&m_constraints[0]:0;
m_solver->solveGroup( bodies,m_bodies.size(),manifold, m_manifolds.size(),constraints, m_constraints.size() ,*m_solverInfo,m_debugDrawer,m_dispatcher);
m_bodies.resize(0);
m_manifolds.resize(0);
m_constraints.resize(0);
}
virtual void processIsland( btCollisionObject** bodies,
int numBodies,
btPersistentManifold** manifolds,
int numManifolds,
btTypedConstraint** constraints,
int numConstraints,
int islandId
)
{
m_solver->solveGroup( bodies,
numBodies,
manifolds,
numManifolds,
constraints,
numConstraints,
*m_solverInfo,
m_debugDrawer,
m_dispatcher
);
}
