Fixes memory leak for heightfield collision shapes (changes heightfield collision shape creation to be more like the other shapes for consistency).

gameplay/src/PhysicsController.cpp

@@ -5,6 +5,8 @@
 #include "PhysicsMotionState.h"
 #include "Package.h"
 
+#include "BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h"
+
 // The initial capacity of the Bullet debug drawer's vertex batch.
 #define INITIAL_CAPACITY 280
 
@@ -679,6 +681,13 @@ btCollisionShape* PhysicsController::createMesh(PhysicsRigidBody* body, const Ve
     return shape;
 }
 
+btCollisionShape* PhysicsController::createHeightfield(int width, int height, void* heightfieldData, float minHeight, float maxHeight)
+{
+    btCollisionShape* shape = bullet_new<btHeightfieldTerrainShape>(width, height, heightfieldData, 1.0f, minHeight, maxHeight, 1, PHY_FLOAT, false);
+    _shapes.push_back(new PhysicsCollisionShape(shape));
+    return shape;
+}
+
 void PhysicsController::addConstraint(PhysicsRigidBody* a, PhysicsRigidBody* b, PhysicsConstraint* constraint)
 {
     a->addConstraint(constraint);

gameplay/src/PhysicsController.h

@@ -329,6 +329,9 @@ private:
     // Creates a triangle mesh collision shape to be used in the creation of a rigid body.
     btCollisionShape* createMesh(PhysicsRigidBody* body, const Vector3& scale);
 
+    // Creates a heightfield collision shape to be used in the creation of a rigid body.
+    btCollisionShape* createHeightfield(int width, int height, void* heightfieldData, float minHeight, float maxHeight);
+
     // Sets up the given constraint for the given two rigid bodies.
     void addConstraint(PhysicsRigidBody* a, PhysicsRigidBody* b, PhysicsConstraint* constraint);
 

gameplay/src/PhysicsRigidBody.cpp

@@ -5,8 +5,6 @@
 #include "PhysicsMotionState.h"
 #include "PhysicsRigidBody.h"
 
-#include "BulletCollision/CollisionShapes/btHeightfieldTerrainShape.h"
-
 namespace gameplay
 {
 
@@ -126,8 +124,7 @@ PhysicsRigidBody::PhysicsRigidBody(Node* node, Image* image, float mass,
     SAFE_DELETE_ARRAY(data);
 
     // Create the heightfield collision shape.
-    _shape = bullet_new<btHeightfieldTerrainShape>(_width, _height, _heightfieldData,
-        1.0f, minHeight, maxHeight, 1, PHY_FLOAT, false);
+    _shape = Game::getInstance()->getPhysicsController()->createHeightfield(_width, _height, _heightfieldData, minHeight, maxHeight);
 
     // Offset the heightmap's center of mass according to the way that Bullet calculates the origin 
     // of its heightfield collision shape; see documentation for the btHeightfieldTerrainShape for more info.