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, 5 insertions, 2 deletions

diff --git a/source/gameengine/Ketsji/KX_PolygonMaterial.cpp b/source/gameengine/Ketsji/KX_PolygonMaterial.cpp
index c5bddd6d166..3975189a9c2 100644
--- a/source/gameengine/Ketsji/KX_PolygonMaterial.cpp
+++ b/source/gameengine/Ketsji/KX_PolygonMaterial.cpp
@@ -333,8 +333,11 @@ PyObject* KX_PolygonMaterial::pyattr_get_tface(void *self_v, const KX_PYATTRIBUT
 PyObject* KX_PolygonMaterial::pyattr_get_gl_texture(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef)
 {
 	KX_PolygonMaterial* self= static_cast<KX_PolygonMaterial*>(self_v);
-	Image *ima = self->m_tface->tpage;
-	return PyInt_FromLong(ima ? ima->bindcode:0);
+	int bindcode= 0;
+	if (self->m_tface && self->m_tface->tpage)
+		bindcode= self->m_tface->tpage->bindcode;
+	
+	return PyInt_FromLong(bindcode);
 }