Add support for picking deformable with mouse

examples/DeformableDemo/Pinch.cpp

@@ -22,7 +22,7 @@
 #include "BulletDynamics/Featherstone/btMultiBodyConstraintSolver.h"
 #include <stdio.h>  //printf debugging
 
-#include "../CommonInterfaces/CommonRigidBodyBase.h"
+#include "../CommonInterfaces/CommonDeformableBodyBase.h"
 #include "../Utils/b3ResourcePath.h"
 
 ///The Pinch shows the frictional contact between kinematic rigid objects with deformable objects
@@ -32,12 +32,11 @@ struct TetraCube
 #include "../SoftDemo/cube.inl"
 };
 
-class Pinch : public CommonRigidBodyBase
+class Pinch : public CommonDeformableBodyBase
 {
-    btAlignedObjectArray<btDeformableLagrangianForce*> m_forces;
 public:
 	Pinch(struct GUIHelperInterface* helper)
-		: CommonRigidBodyBase(helper)
+		: CommonDeformableBodyBase(helper)
 	{
 	}
 	virtual ~Pinch()
@@ -81,19 +80,9 @@ public:
         }
     }
     
-    virtual const btDeformableMultiBodyDynamicsWorld* getDeformableDynamicsWorld() const
-    {
-        return (btDeformableMultiBodyDynamicsWorld*)m_dynamicsWorld;
-    }
-    
-    virtual btDeformableMultiBodyDynamicsWorld* getDeformableDynamicsWorld()
-    {
-        return (btDeformableMultiBodyDynamicsWorld*)m_dynamicsWorld;
-    }
-    
     virtual void renderScene()
     {
-        CommonRigidBodyBase::renderScene();
+        CommonDeformableBodyBase::renderScene();
         btDeformableMultiBodyDynamicsWorld* deformableWorld = getDeformableDynamicsWorld();
         
         for (int i = 0; i < deformableWorld->getSoftBodyArray().size(); i++)
@@ -337,7 +326,7 @@ void Pinch::initPhysics()
 void Pinch::exitPhysics()
 {
 	//cleanup in the reverse order of creation/initialization
-
+    removePickingConstraint();
 	//remove the rigidbodies from the dynamics world and delete them
 	int i;
 	for (i = m_dynamicsWorld->getNumCollisionObjects() - 1; i >= 0; i--)