BGE Bugfixes (mostly in the py api)

KX_PolygonMaterial and KX_BlenderMaterial - Added a print function (would raise a python error on printing)

* Crashes *
KX_GameObject SetParent - Disallowed setting a parent to its self, caused a recursion crash.
KX_MeshProxy "materials" attribute was segfaulting because of my recent change - I was wrong, you do need to check material types (no idea why since they are both PyObject * at the base)
KX_VisibilityActuator - Wasn't initialized with PyType_Ready() making it crash on access (own fault) 

* Crashes because of missing NULL checks *
KX_PolygonMaterial's "gl_texture" attribute wasnt checking for a valid m_tface
KX_GameObject - added checks for GetPhysicsController()
KX_RayCast::RayTest - didnt check for a valid physics_environment
KX_SceneActuator's getCamera python function wasnt checking if there was a camera.

1 files changed, 6 insertions, 1 deletions

diff --git a/source/gameengine/Ketsji/KX_SceneActuator.cpp b/source/gameengine/Ketsji/KX_SceneActuator.cpp
index 40a2ff2ef66..f158eb29dd7 100644
--- a/source/gameengine/Ketsji/KX_SceneActuator.cpp
+++ b/source/gameengine/Ketsji/KX_SceneActuator.cpp
@@ -468,6 +468,11 @@ PyObject* KX_SceneActuator::PyGetCamera(PyObject* self,
 										PyObject* kwds)
 {
 	ShowDeprecationWarning("getCamera()", "the camera property");
-	return PyString_FromString(m_camera->GetName());
+	if (m_camera) {
+		PyString_FromString(m_camera->GetName());
+	}
+	else {
+		Py_RETURN_NONE;
+	}
 }
 /* eof */