Introduced btActionInterface. This makes it easier to extend user-defined actions, such as vehicles and characters.

btRaycastVehicle and btKinematicCharacterController are derived from btActionInterface now.
Some cosmetic cleanup: changed sourceforce/sf.net url to bulletphysics.com.

src/BulletDynamics/Vehicle/btRaycastVehicle.h

@@ -17,11 +17,12 @@
 class btDynamicsWorld;
 #include "LinearMath/btAlignedObjectArray.h"
 #include "btWheelInfo.h"
+#include "BulletDynamics/Dynamics/btActionInterface.h"
 
 class btVehicleTuning;
 
 ///rayCast vehicle, very special constraint that turn a rigidbody into a vehicle.
-class btRaycastVehicle : public btTypedConstraint
+class btRaycastVehicle : public btActionInterface
 {
 
 		btAlignedObjectArray<btVector3>	m_forwardWS;
@@ -73,13 +74,24 @@ public:
 
 	virtual ~btRaycastVehicle() ;
 
-		
+
+	///btActionInterface interface
+	virtual void updateAction( btCollisionWorld* collisionWorld, btScalar step)
+	{
+		updateVehicle(step);
+	}
+	
+
+	///btActionInterface interface
+	void	debugDraw(btIDebugDraw* debugDrawer);
+			
 	const btTransform& getChassisWorldTransform() const;
 	
 	btScalar rayCast(btWheelInfo& wheel);
 
 	virtual void updateVehicle(btScalar step);
-
+	
+	
 	void resetSuspension();
 
 	btScalar	getSteeringValue(int wheel) const;
@@ -175,27 +187,6 @@ public:
 		m_indexForwardAxis = forwardIndex;
 	}
 
-	virtual void	buildJacobian()
-	{
-		//not yet
-	}
-
-	virtual void getInfo1 (btConstraintInfo1* info)
-	{
-		info->m_numConstraintRows = 0;
-		info->nub = 0;
-	}
-
-	virtual void getInfo2 (btConstraintInfo2* info)
-	{
-		btAssert(0);
-	}
-
-	virtual	void	solveConstraintObsolete(btSolverBody& bodyA,btSolverBody& bodyB,btScalar	timeStep)
-	{
-		(void)timeStep;
-		//not yet
-	}
 
 
 };