Patch:[#25163] BGE support for Blender Font objects - unicode support

Problem/Bug:
------------
There were no way to have proper unicode characters (e.g. Japanese) in Blender Game Engine. Now we can :)
You can see a sample here: http://blog.mikepan.com/multi-language-support-in-blender/

Functionality Explanation:
--------------------------
This patch converts the Blender Font Objects to a new BGE type: KX_FontObject
This object inherits KX_GameObject.cpp and has the following properties:
- text (the text of the object)
- size (taken from the Blender object, usually is 1.0)
- resolution (1.0 by default, maybe not really needed, but at least for debugging/the time being it's nice to have) 

The way we deal with linked objects is different than Blender. In Blender the text and size are a property of the Text databock. Therefore linked objects necessarily share the same text (and size, although the size of the object datablock affects that too). In BGE they are stored and accessed per object. Without that it would be problematic to have addObject adding texts that don't share the same data.

Known problems/limitations/ToDo:
--------------------------------
1) support for packed font and the <builtin>
2) figure why some fonts are displayed in a different size in 3DView/BGE (BLF)
3) investigate some glitches I see some times
4) support for multiline
5) support for more Blender Font Object options (text aligment, text boxes, ...)

[1] Diego (bdiego) evantually will help on that. For the time being we are using the "default" (ui) font to replace the <builtin>.
[2] but not all of them. I need to cross check who is calculating the size/dpi in/correctly - Blender or BLF. (e.g. fonts that work well - MS Gothic)
[3] I think this may be related to the resolution we are drawing the font
[4] It can't/will not be handled inside BFL. So the way I see it is to implement a mini text library/api that works as a middlelayer between the drawing step and BLF. 
    So instead of:
      BLF_draw(fontid, (char *)text, strlen(text));
    We would do:
      MAGIC_ROUTINE_IM_NOT_BLF_draw(fontir, (char *)text, styleflag, width, height);
[5] don't hold your breath ... but if someone wants to have fun in the holidays the (4) and (5) are part of the same problem.

Code Explanation:
-----------------
The patch should be simple to read. They are three may parts:
1) BL_BlenderDataConversion.cpp:: converts the OB_FONT object into a KX_FontObject.cpp and store it in the KX_Scene->m_fonts
2) KetsjiEngine.cpp::RenderFonts:: loop through the texts and call their internal drawing routine.
3) KX_FontObject.cpp::
  a) constructor: load the font of the object, and store other values.
  b) DrawText: calculate the aspect for the given size (sounds hacky but this is how blf works) and call the render routine in RenderTools
4) KX_BlenderGL.cpp (called from rendertools) ::BL_print_game_line:: Draws the text. Using the BLF API

*) In order to handle visibility of the object added with AddObject I'm adding to the m_scene.m_fonts list only the Fonts in a visible layer - unlike Cameras and Lamps where all the objects are added.

Acknowledgements:
----------------
Thanks Benoit for the review and adjustment suggestions.
Thanks Diego for the BFL expertise, patches and support (Latin community ftw)
Thanks my boss for letting me do part of this patch during work time. Good thing we are starting a project in a partnership with a Japanese Foundation and eventual will need unicode in BGE :) for more details on that - www.nereusprogram.org - let's call it the main sponsor of this "bug feature" ;)

22 files changed, 440 insertions, 7 deletions

diff --git a/source/gameengine/BlenderRoutines/KX_BlenderGL.cpp b/source/gameengine/BlenderRoutines/KX_BlenderGL.cpp
index 2515c1738d7..ee1e92eee75 100644
--- a/source/gameengine/BlenderRoutines/KX_BlenderGL.cpp
+++ b/source/gameengine/BlenderRoutines/KX_BlenderGL.cpp
@@ -123,6 +123,32 @@ void DisableForText()
 	}
 }
 
+/* Print 3D text */
+void BL_print_game_line(int fontid, const char* text, int size, int dpi, float* color, double* mat, float aspect)
+{
+	/* gl prepping */
+	DisableForText();
+
+	/* the actual drawing */
+	glColor4fv(color);
+
+	/* multiply the text matrix by the object matrix */
+	BLF_enable(fontid, BLF_MATRIX|BLF_ASPECT);
+	BLF_matrix(fontid, mat);
+
+	/* aspect is the inverse scale that allows you to increase */
+	/* your resolution without sizing the final text size      */
+	/* the bigger the size, the smaller the aspect	           */
+	BLF_aspect(fontid, aspect, aspect, aspect);
+
+	BLF_size(fontid, size, dpi);
+	BLF_position(fontid, 0, 0, 0);
+	BLF_draw(fontid, (char *)text, strlen(text));
+
+	BLF_disable(fontid, BLF_MATRIX|BLF_ASPECT);
+	glEnable(GL_DEPTH_TEST);
+}
+
 void BL_print_gamedebug_line(const char* text, int xco, int yco, int width, int height)
 {	
 	/* gl prepping */
diff --git a/source/gameengine/BlenderRoutines/KX_BlenderGL.h b/source/gameengine/BlenderRoutines/KX_BlenderGL.h
index 9c5254dd661..6d481470517 100644
--- a/source/gameengine/BlenderRoutines/KX_BlenderGL.h
+++ b/source/gameengine/BlenderRoutines/KX_BlenderGL.h
@@ -47,6 +47,7 @@ void	BL_HideMouse(struct wmWindow *win);
 void	BL_NormalMouse(struct wmWindow *win);
 void	BL_WaitMouse(struct wmWindow *win);
 
+void BL_print_game_line(int fontid, const char* text, int size, int dpi, float* color, double* mat, float aspect);
 void BL_print_gamedebug_line(const char* text, int xco, int yco, int width, int height);
 void BL_print_gamedebug_line_padded(const char* text, int xco, int yco, int width, int height);
 
diff --git a/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.cpp b/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.cpp
index 3d736557535..bbc2389b875 100644
--- a/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.cpp
+++ b/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.cpp
@@ -275,7 +275,16 @@ void KX_BlenderRenderTools::applyTransform(RAS_IRasterizer* rasty,double* oglmat
 		}
 	}
 }
-
+void KX_BlenderRenderTools::RenderText3D(int fontid,
+										 const char* text,
+										 int size,
+										 int dpi,
+										 float* color,
+										 double* mat,
+										 float aspect)
+{
+	BL_print_game_line(fontid, text, size, dpi, color, mat, aspect);
+}
 
 void KX_BlenderRenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode,
 										 const char* text,
diff --git a/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.h b/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.h
index 517e0713352..7d4728f5ef0 100644
--- a/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.h
+++ b/source/gameengine/BlenderRoutines/KX_BlenderRenderTools.h
@@ -69,7 +69,15 @@ public:
 	void				DisableOpenGLLights();
 	void				ProcessLighting(RAS_IRasterizer *rasty, bool uselights, const MT_Transform& viewmat);
 
-	void			    RenderText2D(RAS_TEXT_RENDER_MODE mode,
+	void				RenderText3D(int fontid,
+									 const char* text,
+									 int size,
+									 int dpi,
+									 float* color,
+									 double* mat,
+									 float aspect);
+
+	void		RenderText2D(RAS_TEXT_RENDER_MODE mode,
 									 const char* text,
 									 int xco,
 									 int yco,
diff --git a/source/gameengine/Converter/BL_BlenderDataConversion.cpp b/source/gameengine/Converter/BL_BlenderDataConversion.cpp
index 715e5e33e75..374f5c814d1 100644
--- a/source/gameengine/Converter/BL_BlenderDataConversion.cpp
+++ b/source/gameengine/Converter/BL_BlenderDataConversion.cpp
@@ -64,6 +64,7 @@
 #include "KX_Light.h"
 #include "KX_Camera.h"
 #include "KX_EmptyObject.h"
+#include "KX_FontObject.h"
 #include "MT_Point3.h"
 #include "MT_Transform.h"
 #include "MT_MinMax.h"
@@ -1266,10 +1267,13 @@ static void my_get_local_bounds(Object *ob, DerivedMesh *dm, float *center, floa
 			break;
 		case OB_CURVE:
 		case OB_SURF:
-		case OB_FONT:
 			center[0]= center[1]= center[2]= 0.0;
 			size[0]  = size[1]=size[2]=0.0;
 			break;
+		case OB_FONT:
+			center[0]= center[1]= center[2]= 0.0;
+			size[0]  = size[1]=size[2]=1.0;
+			break;
 		case OB_MBALL:
 			bb= ob->bb;
 			break;
@@ -1801,6 +1805,18 @@ static KX_GameObject *gameobject_from_blenderobject(
 		// set transformation
 		break;
 	}
+
+	case OB_FONT:
+	{
+		/* font objects have no bounding box */
+		gameobj = new KX_FontObject(kxscene,KX_Scene::m_callbacks, rendertools, ob);
+
+		/* add to the list only the visible fonts */
+		if((ob->lay & kxscene->GetBlenderScene()->lay) != 0)
+			kxscene->AddFont(static_cast<KX_FontObject*>(gameobj));
+		break;
+	}
+
 	}
 	if (gameobj) 
 	{
@@ -2703,4 +2719,4 @@ void BL_ConvertBlenderObjects(struct Main* maggie,
 	MT_Scalar distance = (activecam)? activecam->GetCameraFar() - activecam->GetCameraNear(): 100.0f;
 	RAS_BucketManager *bucketmanager = kxscene->GetBucketManager();
 	bucketmanager->OptimizeBuckets(distance);
-}
+}
\ No newline at end of file
diff --git a/source/gameengine/GamePlayer/common/CMakeLists.txt b/source/gameengine/GamePlayer/common/CMakeLists.txt
index e0338f672e0..43952a15431 100644
--- a/source/gameengine/GamePlayer/common/CMakeLists.txt
+++ b/source/gameengine/GamePlayer/common/CMakeLists.txt
@@ -37,6 +37,7 @@ set(INC
 	../../../../source/blender/imbuf
 	../../../../source/gameengine/Ketsji
 	../../../../source/blender/blenlib
+	../../../../source/blender/blenfont
 	../../../../source/blender/blenkernel
 	../../../../source/blender
 	../../../../source/blender/makesdna
diff --git a/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp b/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
index a985decabe4..51cd323a375 100644
--- a/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
+++ b/source/gameengine/GamePlayer/common/GPC_RenderTools.cpp
@@ -53,6 +53,10 @@
 
 #include "GPC_RenderTools.h"
 
+extern "C" {
+#include "BLF_api.h"
+}
+
 
 unsigned int GPC_RenderTools::m_numgllights;
 
@@ -276,6 +280,35 @@ void GPC_RenderTools::applyTransform(RAS_IRasterizer* rasty,double* oglmatrix,in
 	}
 }
 
+void GPC_RenderTools::RenderText3D(	int fontid,
+									const char* text,
+									int size,
+									int dpi,
+									float* color,
+									double* mat,
+									float aspect)
+{
+	/* the actual drawing */
+	glColor3fv(color);
+ 
+	/* multiply the text matrix by the object matrix */
+	BLF_enable(fontid, BLF_MATRIX|BLF_ASPECT);
+	BLF_matrix(fontid, mat);
+
+	/* aspect is the inverse scale that allows you to increase */
+	/* your resolution without sizing the final text size */
+	/* the bigger the size, the smaller the aspect	*/
+	BLF_aspect(fontid, aspect, aspect, aspect);
+
+	BLF_size(fontid, size, dpi);
+	BLF_position(fontid, 0, 0, 0);
+	BLF_draw(fontid, (char *)text, strlen(text));
+
+	BLF_disable(fontid, BLF_MATRIX|BLF_ASPECT);
+	glEnable(GL_DEPTH_TEST);
+}
+
+
 
 void GPC_RenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode,
 										 const char* text,
diff --git a/source/gameengine/GamePlayer/common/GPC_RenderTools.h b/source/gameengine/GamePlayer/common/GPC_RenderTools.h
index 378c6d8580f..714d686439d 100644
--- a/source/gameengine/GamePlayer/common/GPC_RenderTools.h
+++ b/source/gameengine/GamePlayer/common/GPC_RenderTools.h
@@ -68,6 +68,13 @@ public:
 	void				DisableOpenGLLights();
 	void				ProcessLighting(RAS_IRasterizer *rasty, bool uselights, const MT_Transform& viewmat);
 
+	void				RenderText3D(int fontid,
+									 const char* text,
+									 int size,
+									 int dpi,
+									 float* color,
+									 double* mat,
+									 float aspect);
 	/* @attention mode is ignored here */
 	void			    RenderText2D(RAS_TEXT_RENDER_MODE mode,
 									 const char* text,
diff --git a/source/gameengine/GamePlayer/common/Makefile b/source/gameengine/GamePlayer/common/Makefile
index dd6aa9fc98c..39b7a4bd781 100644
--- a/source/gameengine/GamePlayer/common/Makefile
+++ b/source/gameengine/GamePlayer/common/Makefile
@@ -41,6 +41,7 @@ CPPFLAGS += -I$(OPENGL_HEADERS)
 CPPFLAGS += -I../../../blender/blenkernel
 CPPFLAGS += -I../../../blender/blenloader
 CPPFLAGS += -I../../../blender/blenlib
+CPPFLAGS += -I../../../blender/blenfont
 CPPFLAGS += -I../../../blender/imbuf
 CPPFLAGS += -I../../../blender/makesdna
 CPPFLAGS += -I../../../blender/gpu
diff --git a/source/gameengine/GamePlayer/common/SConscript b/source/gameengine/GamePlayer/common/SConscript
index 873f53f25fa..f7a423f4588 100644
--- a/source/gameengine/GamePlayer/common/SConscript
+++ b/source/gameengine/GamePlayer/common/SConscript
@@ -26,6 +26,7 @@ incs = ['.',
         '#source/blender/imbuf',
         '#source/gameengine/Ketsji',
         '#source/blender/blenlib',
+        '#source/blender/blenfont',
         '#source/blender/blenkernel',
         '#source/blender',
         '#source/blender/include',
diff --git a/source/gameengine/Ketsji/CMakeLists.txt b/source/gameengine/Ketsji/CMakeLists.txt
index 4931299a8e5..912794d9f75 100644
--- a/source/gameengine/Ketsji/CMakeLists.txt
+++ b/source/gameengine/Ketsji/CMakeLists.txt
@@ -35,6 +35,7 @@ set(INC
 	../../../intern/moto/include
 	../../../source/gameengine/Ketsji 
 	../../../source/blender/blenlib
+	../../../source/blender/blenfont
 	../../../source/blender/blenkernel
 	../../../source/blender/python
 	../../../source/blender/python/generic
@@ -70,6 +71,7 @@ set(SRC
 	KX_ConvertPhysicsObjects.cpp
 	KX_Dome.cpp
 	KX_EmptyObject.cpp
+	KX_FontObject.cpp
 	KX_GameActuator.cpp
 	KX_GameObject.cpp
 	KX_IPO_SGController.cpp
@@ -135,6 +137,7 @@ set(SRC
 	KX_ConvertPhysicsObject.h
 	KX_Dome.h
 	KX_EmptyObject.h
+	KX_FontObject.h
 	KX_GameActuator.h
 	KX_GameObject.h
 	KX_IInterpolator.h
diff --git a/source/gameengine/Ketsji/KX_FontObject.cpp b/source/gameengine/Ketsji/KX_FontObject.cpp
new file mode 100755
index 00000000000..2bd41b8fe1a
--- /dev/null
+++ b/source/gameengine/Ketsji/KX_FontObject.cpp
@@ -0,0 +1,147 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+#include "KX_FontObject.h"
+#include "DNA_curve_types.h"
+#include "KX_Scene.h"
+#include "KX_PythonInit.h"
+
+extern "C" {
+#include "BLF_api.h"
+}
+
+#define BGE_FONT_RES 100
+
+KX_FontObject::KX_FontObject(	void* sgReplicationInfo,
+								SG_Callbacks callbacks,
+								RAS_IRenderTools* rendertools,
+								Object *ob):
+	KX_GameObject(sgReplicationInfo, callbacks),
+	m_rendertools(rendertools),
+	m_object(ob),
+	m_dpi(72),
+	m_resolution(1.f),
+	m_color(ob->col) /* initial color - non-animatable */
+{
+	Curve *text = static_cast<Curve *> (ob->data);
+	m_text = text->str;
+	m_fsize = text->fsize;
+
+	/* <builtin> != "default"					*/
+	/* I hope at some point Blender (2.5x) can have a single font	*/
+	/* with unicode support for ui and OB_FONT			*/
+	/* once we have packed working we can load the <builtin> font	*/
+	const char* filepath = text->vfont->name;
+	if (strcmp("<builtin>", filepath) == 0)
+		filepath = "default";
+
+	/* XXX - if it's packed it will not work. waiting for bdiego (Diego) fix for that. */
+	m_fontid = BLF_load(filepath);
+	if (m_fontid == -1)
+		m_fontid = BLF_load("default");
+}
+
+KX_FontObject::~KX_FontObject()
+{
+	//remove font from the scene list
+	//it's handled in KX_Scene::NewRemoveObject
+}
+
+CValue* KX_FontObject::GetReplica() {
+	KX_FontObject* replica = new KX_FontObject(*this);
+	replica->ProcessReplica();
+	return replica;
+}
+
+void KX_FontObject::ProcessReplica()
+{
+	KX_GameObject::ProcessReplica();
+	KX_GetActiveScene()->AddFont(this);
+}
+
+void KX_FontObject::DrawText()
+{
+	/* only draws the text if visible */
+	if(this->GetVisible() == 0) return;
+
+	/* XXX 2DO - handle multiple lines
+	/* HARDCODED MULTIPLICATION FACTOR - this will affect the render resolution directly */
+	float RES = BGE_FONT_RES * m_resolution;
+
+	float size = m_fsize * m_object->size[0] * RES;
+	float aspect = 1.f / (m_object->size[0] * RES);
+	m_rendertools->RenderText3D(m_fontid, m_text, int(size), m_dpi, m_color, this->GetOpenGLMatrix(), aspect);
+}
+
+#ifdef WITH_PYTHON
+
+/* ------------------------------------------------------------------------- */
+/* Python Integration Hooks					                                 */
+/* ------------------------------------------------------------------------- */
+
+PyTypeObject KX_FontObject::Type = {
+	PyVarObject_HEAD_INIT(NULL, 0)
+	"KX_FontObject",
+	sizeof(PyObjectPlus_Proxy),
+	0,
+	py_base_dealloc,
+	0,
+	0,
+	0,
+	0,
+	py_base_repr,
+	0,
+	&KX_GameObject::Sequence,
+	&KX_GameObject::Mapping,
+	0,0,0,
+	NULL,
+	NULL,
+	0,
+	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+	0,0,0,0,0,0,0,
+	Methods,
+	0,
+	0,
+	&KX_GameObject::Type,
+	0,0,0,0,0,0,
+	py_base_new
+};
+
+PyMethodDef KX_FontObject::Methods[] = {
+	{NULL,NULL} //Sentinel
+};
+
+PyAttributeDef KX_FontObject::Attributes[] = {
+	KX_PYATTRIBUTE_STRING_RW("text", 0, 100, false, KX_FontObject, m_text),
+	KX_PYATTRIBUTE_FLOAT_RW("size", 0.0001f, 10000.0f, KX_FontObject, m_fsize),
+	KX_PYATTRIBUTE_FLOAT_RW("resolution", 0.0001f, 10000.0f, KX_FontObject, m_resolution),
+	/* KX_PYATTRIBUTE_INT_RW("dpi", 0, 10000, false, KX_FontObject, m_dpi), */// no real need for expose this I think
+	{ NULL }	//Sentinel
+};
+
+#endif // WITH_PYTHON
diff --git a/source/gameengine/Ketsji/KX_FontObject.h b/source/gameengine/Ketsji/KX_FontObject.h
new file mode 100755
index 00000000000..21fe1f0e9ea
--- /dev/null
+++ b/source/gameengine/Ketsji/KX_FontObject.h
@@ -0,0 +1,80 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+#ifndef __KX_FONTOBJECT
+#define  __KX_FONTOBJECT
+#include "KX_GameObject.h"
+#include "DNA_vfont_types.h"
+#include "RAS_IRenderTools.h"
+
+class KX_FontObject : public KX_GameObject
+{
+public:
+	Py_Header;
+	KX_FontObject(	void* sgReplicationInfo,
+					SG_Callbacks callbacks,
+					RAS_IRenderTools* rendertools,
+					Object *ob);
+
+	virtual ~KX_FontObject();
+
+	void DrawText();
+
+	/** 
+	 * Inherited from CValue -- return a new copy of this
+	 * instance allocated on the heap. Ownership of the new 
+	 * object belongs with the caller.
+	 */
+	virtual	CValue* GetReplica();
+	virtual void ProcessReplica();
+
+protected:
+	STR_String		m_text;
+	Object*			m_object;
+	int			m_fontid;
+	int			m_dpi;
+	float			m_fsize;
+	float			m_resolution;
+	float*			m_color;
+
+	class RAS_IRenderTools*	m_rendertools;	//needed for drawing routine
+
+/*
+#ifdef WITH_CXX_GUARDEDALLOC
+public:
+	void *operator new(size_t num_bytes) { return MEM_mallocN(num_bytes, "GE:KX_FontObject"); }
+	void operator delete( void *mem ) { MEM_freeN(mem); }
+#endif
+*/
+
+#ifdef WITH_PYTHON
+#endif
+
+};
+
+#endif //__KX_FONTOBJECT
diff --git a/source/gameengine/Ketsji/KX_GameObject.cpp b/source/gameengine/Ketsji/KX_GameObject.cpp
index 7bd7fb8026f..f515016d0b9 100644
--- a/source/gameengine/Ketsji/KX_GameObject.cpp
+++ b/source/gameengine/Ketsji/KX_GameObject.cpp
@@ -47,6 +47,7 @@ typedef unsigned long uint_ptr;
 #include "KX_GameObject.h"
 #include "KX_Camera.h" // only for their ::Type
 #include "KX_Light.h"  // only for their ::Type
+#include "KX_FontObject.h"  // only for their ::Type
 #include "RAS_MeshObject.h"
 #include "KX_MeshProxy.h"
 #include "KX_PolyProxy.h"
@@ -3034,7 +3035,8 @@ bool ConvertPythonToGameObject(PyObject * value, KX_GameObject **object, bool py
 	
 	if (	PyObject_TypeCheck(value, &KX_GameObject::Type)	||
 			PyObject_TypeCheck(value, &KX_LightObject::Type)	||
-			PyObject_TypeCheck(value, &KX_Camera::Type)	)
+			PyObject_TypeCheck(value, &KX_Camera::Type)			||
+			PyObject_TypeCheck(value, &KX_FontObject::Type))
 	{
 		*object = static_cast<KX_GameObject*>BGE_PROXY_REF(value);
 		
diff --git a/source/gameengine/Ketsji/KX_KetsjiEngine.cpp b/source/gameengine/Ketsji/KX_KetsjiEngine.cpp
index 35d02fbc9f4..f4fd85affb6 100644
--- a/source/gameengine/Ketsji/KX_KetsjiEngine.cpp
+++ b/source/gameengine/Ketsji/KX_KetsjiEngine.cpp
@@ -55,6 +55,7 @@
 #include "KX_Scene.h"
 #include "MT_CmMatrix4x4.h"
 #include "KX_Camera.h"
+#include "KX_FontObject.h"
 #include "KX_Dome.h"
 #include "KX_Light.h"
 #include "KX_PythonInit.h"
@@ -1301,10 +1302,26 @@ void KX_KetsjiEngine::RenderFrame(KX_Scene* scene, KX_Camera* cam)
 #endif
 
 	scene->RenderBuckets(camtrans, m_rasterizer, m_rendertools);
+
+	//render all the font objects for this scene
+	RenderFonts(scene);
 	
 	if (scene->GetPhysicsEnvironment())
 		scene->GetPhysicsEnvironment()->debugDrawWorld();
 }
+
+void KX_KetsjiEngine::RenderFonts(KX_Scene* scene)
+{
+	list<class KX_FontObject*>* fonts = scene->GetFonts();
+	
+	list<KX_FontObject*>::iterator it = fonts->begin();
+	while(it != fonts->end())
+	{
+		(*it)->DrawText();
+		++it;
+	}
+}
+
 /*
 To run once per scene
 */
diff --git a/source/gameengine/Ketsji/KX_KetsjiEngine.h b/source/gameengine/Ketsji/KX_KetsjiEngine.h
index 4ce14e100cc..8b07a998c33 100644
--- a/source/gameengine/Ketsji/KX_KetsjiEngine.h
+++ b/source/gameengine/Ketsji/KX_KetsjiEngine.h
@@ -191,6 +191,7 @@ private:
 	void					RenderShadowBuffers(KX_Scene *scene);
 	void					SetBackGround(KX_WorldInfo* worldinfo);
 	void					DoSound(KX_Scene* scene);
+	void					RenderFonts(KX_Scene* scene);
 
 public:
 	KX_KetsjiEngine(class KX_ISystem* system);
diff --git a/source/gameengine/Ketsji/KX_PythonInitTypes.cpp b/source/gameengine/Ketsji/KX_PythonInitTypes.cpp
index 3cca4f39f85..8a9eac216d1 100644
--- a/source/gameengine/Ketsji/KX_PythonInitTypes.cpp
+++ b/source/gameengine/Ketsji/KX_PythonInitTypes.cpp
@@ -47,6 +47,7 @@
 #include "KX_ConstraintWrapper.h"
 #include "KX_GameActuator.h"
 #include "KX_Light.h"
+#include "KX_FontObject.h"
 #include "KX_MeshProxy.h"
 #include "KX_MouseFocusSensor.h"
 #include "KX_NetworkMessageActuator.h"
@@ -193,6 +194,7 @@ void initPyTypes(void)
 		PyType_Ready_Attr(dict, KX_GameObject, init_getset);
 		PyType_Ready_Attr(dict, KX_IpoActuator, init_getset);
 		PyType_Ready_Attr(dict, KX_LightObject, init_getset);
+		PyType_Ready_Attr(dict, KX_FontObject, init_getset);
 		PyType_Ready_Attr(dict, KX_MeshProxy, init_getset);
 		PyType_Ready_Attr(dict, KX_MouseFocusSensor, init_getset);
 		PyType_Ready_Attr(dict, KX_NearSensor, init_getset);
diff --git a/source/gameengine/Ketsji/KX_Scene.cpp b/source/gameengine/Ketsji/KX_Scene.cpp
index 0605650bb09..1db174d72be 100644
--- a/source/gameengine/Ketsji/KX_Scene.cpp
+++ b/source/gameengine/Ketsji/KX_Scene.cpp
@@ -323,7 +323,10 @@ list<class KX_Camera*>* KX_Scene::GetCameras()
 	return &m_cameras;
 }
 
-
+list<class KX_FontObject*>* KX_Scene::GetFonts()
+{
+	return &m_fonts;
+}
 
 void KX_Scene::SetFramingType(RAS_FrameSettings & frame_settings)
 {
@@ -1014,6 +1017,9 @@ int KX_Scene::NewRemoveObject(class CValue* gameobj)
 	// in case this is a camera
 	m_cameras.remove((KX_Camera*)newobj);
 
+	// in case this is a font
+	m_fonts.remove((KX_FontObject*)newobj);
+
 	/* currently does nothing, keep incase we need to Unregister something */
 #if 0
 	if (m_sceneConverter)
@@ -1188,6 +1194,27 @@ void KX_Scene::ReplaceMesh(class CValue* obj,void* meshobj, bool use_gfx, bool u
 #endif
 }
 
+/* Font Object routines */
+void KX_Scene::AddFont(KX_FontObject* font)
+{
+	if (!FindFont(font))
+		m_fonts.push_back(font);
+}
+
+KX_FontObject* KX_Scene::FindFont(KX_FontObject* font)
+{
+	list<KX_FontObject*>::iterator it = m_fonts.begin();
+
+	while ( (it != m_fonts.end()) 
+			&& ((*it) != font) ) {
+	  ++it;
+	}
+
+	return ((it == m_fonts.end()) ? NULL : (*it));
+}
+
+
+/* Camera Object routines */
 KX_Camera* KX_Scene::FindCamera(KX_Camera* cam)
 {
 	list<KX_Camera*>::iterator it = m_cameras.begin();
diff --git a/source/gameengine/Ketsji/KX_Scene.h b/source/gameengine/Ketsji/KX_Scene.h
index 9b4a6ec5ec6..6bef3f95dde 100644
--- a/source/gameengine/Ketsji/KX_Scene.h
+++ b/source/gameengine/Ketsji/KX_Scene.h
@@ -136,6 +136,13 @@ protected:
 	 * The set of cameras for this scene
 	 */
 	list<class KX_Camera*>       m_cameras;
+
+	/**
+	 * The set of fonts for this scene
+	 */
+	list<class KX_FontObject*>       m_fonts;
+
+
 	/**
 	 * Various SCA managers used by the scene
 	 */
@@ -361,6 +368,27 @@ public:
 	GetTimeEventManager(
 	);
 
+	/** Font Routines */
+		
+		list<class KX_FontObject*>*
+	GetFonts(
+	);
+
+	/** Find a font in the scene by pointer. */
+		KX_FontObject*              
+	FindFont(
+		KX_FontObject*
+	);
+
+	/** Add a camera to this scene. */
+		void                    
+	AddFont(
+		KX_FontObject*
+	);
+
+
+	/** Camera Routines */
+
 		list<class KX_Camera*>*
 	GetCameras(
 	);
diff --git a/source/gameengine/Ketsji/Makefile b/source/gameengine/Ketsji/Makefile
index 79c8626d295..3161351db90 100644
--- a/source/gameengine/Ketsji/Makefile
+++ b/source/gameengine/Ketsji/Makefile
@@ -60,6 +60,7 @@ CPPFLAGS += -I../Converter
 CPPFLAGS += -I../../blender/blenkernel
 CPPFLAGS += -I../../blender/blenlib
 CPPFLAGS += -I../../blender/blenloader
+CPPFLAGS += -I../../blender/blenfont
 CPPFLAGS += -I../../blender/makesdna
 CPPFLAGS += -I../../blender/imbuf
 CPPFLAGS += -I../../blender/gpu
diff --git a/source/gameengine/Ketsji/SConscript b/source/gameengine/Ketsji/SConscript
index 3e86080a2f8..56e0db0cc20 100644
--- a/source/gameengine/Ketsji/SConscript
+++ b/source/gameengine/Ketsji/SConscript
@@ -12,7 +12,7 @@ incs += ' #source/kernel/gen_system #intern/string #intern/guardedalloc'
 incs += ' #source/gameengine/Rasterizer/RAS_OpenGLRasterizer'
 incs += ' #intern/audaspace/intern #source/gameengine/Converter'
 incs += ' #source/gameengine/BlenderRoutines #source/blender/imbuf #intern/moto/include'
-incs += ' #source/gameengine/Ketsji #source/gameengine/Ketsji/KXNetwork #source/blender/blenlib'
+incs += ' #source/gameengine/Ketsji #source/gameengine/Ketsji/KXNetwork #source/blender/blenlib #source/blender/blenfont'
 incs += ' #source/blender/blenkernel #source/blender #source/blender/editors/include'
 incs += ' #source/blender/makesdna #source/blender/python #source/gameengine/Rasterizer'
 incs += ' #source/gameengine/GameLogic #source/gameengine/Expressions #source/gameengine/Network'
diff --git a/source/gameengine/Rasterizer/RAS_IRenderTools.h b/source/gameengine/Rasterizer/RAS_IRenderTools.h
index 50de4980e1d..dab28de27f4 100644
--- a/source/gameengine/Rasterizer/RAS_IRenderTools.h
+++ b/source/gameengine/Rasterizer/RAS_IRenderTools.h
@@ -99,6 +99,28 @@ public:
 	)=0;
 
 	/**
+	 * Renders 3D text string using BFL.
+	 * @param fontid	The id of the font.
+	 * @param text		The string to render.
+	 * @param size		The size of the text.
+	 * @param dpi		The resolution of the text.
+	 * @param color		The color of the object.
+	 * @param mat		The Matrix of the text object.
+	 * @param aspect	A scaling factor to compensate for the size.
+	 */
+	virtual 
+		void	
+	RenderText3D(int fontid,
+				 const char* text,
+				 int size,
+				 int dpi,
+				 float* color,
+				 double* mat,
+				 float aspect
+	) = 0;
+
+
+	/**
 	 * Renders 2D text string.
 	 * @param mode      The type of text
 	 * @param text		The string to render.