diff --git a/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp b/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp
index a4e210290..bc382f03a 100644
--- a/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp
+++ b/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.cpp
@@ -844,3 +844,15 @@ void	btDiscreteDynamicsWorld::setConstraintSolver(btConstraintSolver* solver)
 	m_constraintSolver = solver;
 }
 
+int		btDiscreteDynamicsWorld::getNumConstraints() const
+{
+	return int(m_constraints.size());
+}
+btTypedConstraint* btDiscreteDynamicsWorld::getConstraint(int index)
+{
+	return m_constraints[index];
+}
+const btTypedConstraint* btDiscreteDynamicsWorld::getConstraint(int index) const
+{
+	return m_constraints[index];
+}
diff --git a/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h b/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
index 109592c2b..e4983169a 100644
--- a/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
+++ b/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
@@ -137,6 +137,13 @@ public:
 	void	debugDrawObject(const btTransform& worldTransform, const btCollisionShape* shape, const btVector3& color);
 
 	virtual void	setConstraintSolver(btConstraintSolver* solver);
+	
+	virtual	int		getNumConstraints() const;
+
+	virtual btTypedConstraint* getConstraint(int index)	;
+
+	virtual const btTypedConstraint* getConstraint(int index) const;
+
 
 };
 
diff --git a/src/BulletDynamics/Dynamics/btDynamicsWorld.h b/src/BulletDynamics/Dynamics/btDynamicsWorld.h
index e5c9a33b6..c5f61d8c7 100644
--- a/src/BulletDynamics/Dynamics/btDynamicsWorld.h
+++ b/src/BulletDynamics/Dynamics/btDynamicsWorld.h
@@ -68,6 +68,12 @@ class btDynamicsWorld : public btCollisionWorld
 		virtual void	removeRigidBody(btRigidBody* body) = 0;
 
 		virtual void	setConstraintSolver(btConstraintSolver* solver) = 0;
+		
+		virtual	int		getNumConstraints() const {	return 0;		}
+		
+		virtual btTypedConstraint* getConstraint(int index)		{			return 0;		}
+		
+		virtual const btTypedConstraint* getConstraint(int index) const	{		return 0;	}
 
 };