From d257586fe6d59f9a7c622b460fbe38a168fb5428 Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Thu, 14 May 2009 07:59:44 +0000
Subject: BGE Py API scene.active_camera can now be set so you can more easily
 set the current camera from python scripts without using an actuator.
 ConvertPythonToCamera utility function to get a camera from a python string
 or KX_Camera type.

---
 source/gameengine/Ketsji/KX_Camera.cpp | 54 ++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

(limited to 'source/gameengine/Ketsji/KX_Camera.cpp')

diff --git a/source/gameengine/Ketsji/KX_Camera.cpp b/source/gameengine/Ketsji/KX_Camera.cpp
index 3ea01cca5ca..df39faf8b22 100644
--- a/source/gameengine/Ketsji/KX_Camera.cpp
+++ b/source/gameengine/Ketsji/KX_Camera.cpp
@@ -933,3 +933,57 @@ PyObject* KX_Camera::pyattr_get_OUTSIDE(void *self_v, const KX_PYATTRIBUTE_DEF *
 PyObject* KX_Camera::pyattr_get_INTERSECT(void *self_v, const KX_PYATTRIBUTE_DEF *attrdef)
 {	return PyInt_FromLong(INTERSECT); }
 
+
+bool ConvertPythonToCamera(PyObject * value, KX_Camera **object, bool py_none_ok, const char *error_prefix)
+{
+	if (value==NULL) {
+		PyErr_Format(PyExc_TypeError, "%s, python pointer NULL, should never happen", error_prefix);
+		*object = NULL;
+		return false;
+	}
+		
+	if (value==Py_None) {
+		*object = NULL;
+		
+		if (py_none_ok) {
+			return true;
+		} else {
+			PyErr_Format(PyExc_TypeError, "%s, expected KX_Camera or a KX_Camera name, None is invalid", error_prefix);
+			return false;
+		}
+	}
+	
+	if (PyString_Check(value)) {
+		STR_String value_str = PyString_AsString(value);
+		*object = KX_GetActiveScene()->FindCamera(value_str);
+		
+		if (*object) {
+			return true;
+		} else {
+			PyErr_Format(PyExc_ValueError, "%s, requested name \"%s\" did not match any KX_Camera in this scene", error_prefix, PyString_AsString(value));
+			return false;
+		}
+	}
+	
+	if (PyObject_TypeCheck(value, &KX_Camera::Type)) {
+		*object = static_cast<KX_Camera*>BGE_PROXY_REF(value);
+		
+		/* sets the error */
+		if (*object==NULL) {
+			PyErr_Format(PyExc_SystemError, "%s, " BGE_PROXY_ERROR_MSG, error_prefix);
+			return false;
+		}
+		
+		return true;
+	}
+	
+	*object = NULL;
+	
+	if (py_none_ok) {
+		PyErr_Format(PyExc_TypeError, "%s, expect a KX_Camera, a string or None", error_prefix);
+	} else {
+		PyErr_Format(PyExc_TypeError, "%s, expect a KX_Camera or a string", error_prefix);
+	}
+	
+	return false;
+}
\ No newline at end of file
-- 
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