From 8d2cb5bea44f4245dd17f2d82cbd0251d8090fd5 Mon Sep 17 00:00:00 2001 From: Campbell Barton Date: Sun, 19 Apr 2009 12:46:39 +0000 Subject: BGE Python API This changes how the BGE classes and Python work together, which hasnt changed since blender went opensource. The main difference is PyObjectPlus - the base class for most game engine classes, no longer inherit from PyObject, and cannot be cast to a PyObject. This has the advantage that the BGE does not have to keep 2 reference counts valid for C++ and Python. Previously C++ classes would never be freed while python held a reference, however this reference could be problematic eg: a GameObject that isnt in a scene anymore should not be used by python, doing so could even crash blender in some cases. Instead PyObjectPlus has a member "PyObject *m_proxy" which is lazily initialized when python needs it. m_proxy reference counts are managed by python, though it should never be freed while the C++ class exists since it holds a reference to avoid making and freeing it all the time. When the C++ class is free'd it sets the m_proxy reference to NULL, If python accesses this variable it will raise a RuntimeError, (check the isValid attribute to see if its valid without raising an error). - This replaces the m_zombie bool and IsZombie() tests added recently. In python return values that used to be.. return value->AddRef(); Are now return value->GetProxy(); or... return value->NewProxy(true); // true means python owns this C++ value which will be deleted when the PyObject is freed --- source/gameengine/Ketsji/KX_GameObject.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'source/gameengine/Ketsji/KX_GameObject.h') diff --git a/source/gameengine/Ketsji/KX_GameObject.h b/source/gameengine/Ketsji/KX_GameObject.h index dd85c2f2faa..89517bd76ce 100644 --- a/source/gameengine/Ketsji/KX_GameObject.h +++ b/source/gameengine/Ketsji/KX_GameObject.h @@ -807,6 +807,10 @@ public: } KX_ClientObjectInfo* getClientInfo() { return m_pClient_info; } + + CListValue* GetChildren(); + CListValue* GetChildrenRecursive(); + /** * @section Python interface functions. */ @@ -816,8 +820,6 @@ public: virtual int py_delattro(PyObject *attr); virtual PyObject* py_repr(void) { - if (IsZombiePyErr()) - return NULL; return PyString_FromString(GetName().ReadPtr()); } -- cgit v1.2.3