- added options to enable visualization for obstacle simulation and steering actuator

- added python attributes for parameters of steering actuator

16 files changed, 144 insertions, 46 deletions

diff --git a/release/scripts/ui/properties_game.py b/release/scripts/ui/properties_game.py
index 964a8076534..e581d7f1e3c 100644
--- a/release/scripts/ui/properties_game.py
+++ b/release/scripts/ui/properties_game.py
@@ -557,7 +557,8 @@ class WORLD_PT_game_physics_obstacles(WorldButtonsPanel):
 
         layout.prop(gs, "obstacle_simulation", text = "Type")
         if gs.obstacle_simulation != 'None':
-            layout.prop(gs, "level_height", text="Level height")
+            layout.prop(gs, "level_height")
+            layout.prop(gs, "show_obstacle_simulation")
 			
 
 classes = [
diff --git a/source/blender/blenlib/BLI_math_vector.h b/source/blender/blenlib/BLI_math_vector.h
index 02d5fb27dc9..e27b71f9301 100644
--- a/source/blender/blenlib/BLI_math_vector.h
+++ b/source/blender/blenlib/BLI_math_vector.h
@@ -121,7 +121,7 @@ void mid_v3_v3v3(float r[3], float a[3], float b[3]);
 MINLINE int is_zero_v3(float a[3]);
 MINLINE int is_one_v3(float a[3]);
 
-MINLINE int equals_v3v3(float a[3], float b[3]);
+MINLINE int equals_v3v3(const float a[3],const float b[3]);
 MINLINE int compare_v3v3(float a[3], float b[3], float limit);
 MINLINE int compare_len_v3v3(float a[3], float b[3], float limit);
 
diff --git a/source/blender/blenlib/intern/math_vector_inline.c b/source/blender/blenlib/intern/math_vector_inline.c
index fa8d1a30269..aa72be4fcc2 100644
--- a/source/blender/blenlib/intern/math_vector_inline.c
+++ b/source/blender/blenlib/intern/math_vector_inline.c
@@ -404,7 +404,7 @@ MINLINE int is_one_v3(float *v)
 	return (v[0] == 1 && v[1] == 1 && v[2] == 1);
 }
 
-MINLINE int equals_v3v3(float *v1, float *v2)
+MINLINE int equals_v3v3(const float *v1,const  float *v2)
 {
 	return ((v1[0]==v2[0]) && (v1[1]==v2[1]) && (v1[2]==v2[2]));
 }
diff --git a/source/blender/editors/space_logic/logic_window.c b/source/blender/editors/space_logic/logic_window.c
index 8a011184f0d..22921f41ae9 100644
--- a/source/blender/editors/space_logic/logic_window.c
+++ b/source/blender/editors/space_logic/logic_window.c
@@ -4324,7 +4324,11 @@ static void draw_actuator_steering(uiLayout *layout, PointerRNA *ptr)
 	row = uiLayoutRow(layout, 0);
 	uiItemR(row, ptr, "selfterminated", 0, NULL, 0);
 	if (RNA_enum_get(ptr, "mode")==ACT_STEERING_PATHFOLLOWING)
+	{
 		uiItemR(row, ptr, "updateperiod", 0, NULL, 0);	
+		row = uiLayoutRow(layout, 0);
+	}
+	uiItemR(row, ptr, "enablevisualization", 0, NULL, 0);	
 }
 
 
diff --git a/source/blender/makesdna/DNA_actuator_types.h b/source/blender/makesdna/DNA_actuator_types.h
index 9d26632769b..f3e8dc93cfd 100644
--- a/source/blender/makesdna/DNA_actuator_types.h
+++ b/source/blender/makesdna/DNA_actuator_types.h
@@ -522,6 +522,7 @@ typedef struct FreeCamera {
 #define ACT_STEERING_PATHFOLLOWING   2
 /* steeringactuator->flag */
 #define ACT_STEERING_SELFTERMINATED   1
+#define ACT_STEERING_ENABLEVISUALIZATION   2
 
 #endif
 
diff --git a/source/blender/makesdna/DNA_scene_types.h b/source/blender/makesdna/DNA_scene_types.h
index 2fa08c663c1..72044513300 100644
--- a/source/blender/makesdna/DNA_scene_types.h
+++ b/source/blender/makesdna/DNA_scene_types.h
@@ -516,6 +516,7 @@ typedef struct GameData {
 #define GAME_GLSL_NO_EXTRA_TEX				(1 << 11)
 #define GAME_IGNORE_DEPRECATION_WARNINGS	(1 << 12)
 #define GAME_ENABLE_ANIMATION_RECORD		(1 << 13)
+#define GAME_SHOW_OBSTACLE_SIMULATION		(1 << 14)
 
 /* GameData.matmode */
 #define GAME_MAT_TEXFACE	0
diff --git a/source/blender/makesrna/intern/rna_actuator.c b/source/blender/makesrna/intern/rna_actuator.c
index b78eb766151..fdd017873e7 100644
--- a/source/blender/makesrna/intern/rna_actuator.c
+++ b/source/blender/makesrna/intern/rna_actuator.c
@@ -1926,6 +1926,11 @@ static void rna_def_steering_actuator(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Self terminated", "Terminate when target is reached");
 	RNA_def_property_update(prop, NC_LOGIC, NULL);
 
+	prop= RNA_def_property(srna, "enablevisualization", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", ACT_STEERING_ENABLEVISUALIZATION);
+	RNA_def_property_ui_text(prop, "Visualize", "Enable debug visualization");
+	RNA_def_property_update(prop, NC_LOGIC, NULL);
+
 	prop= RNA_def_property(srna, "updateperiod", PROP_INT, PROP_NONE);
 	RNA_def_property_int_sdna(prop, NULL, "updateTime");
 	RNA_def_property_ui_range(prop, -1, 100000, 1, 1);
diff --git a/source/blender/makesrna/intern/rna_scene.c b/source/blender/makesrna/intern/rna_scene.c
index 23b4596828c..3dc10530242 100644
--- a/source/blender/makesrna/intern/rna_scene.c
+++ b/source/blender/makesrna/intern/rna_scene.c
@@ -1862,6 +1862,10 @@ static void rna_def_scene_game_data(BlenderRNA *brna)
 	RNA_def_property_ui_text(prop, "Level height", "Max difference in heights of obstacles to enable their interaction");
 	RNA_def_property_update(prop, NC_SCENE, NULL);
 
+	prop= RNA_def_property(srna, "show_obstacle_simulation", PROP_BOOLEAN, PROP_NONE);
+	RNA_def_property_boolean_sdna(prop, NULL, "flag", GAME_SHOW_OBSTACLE_SIMULATION);
+	RNA_def_property_ui_text(prop, "Visualization", "Enable debug visualization for obstacle simulation");
+
 	/* Recast Settings */
 	prop= RNA_def_property(srna, "recast_data", PROP_POINTER, PROP_NONE);
 	RNA_def_property_flag(prop, PROP_NEVER_NULL);
diff --git a/source/gameengine/Converter/KX_ConvertActuators.cpp b/source/gameengine/Converter/KX_ConvertActuators.cpp
index e5c39da1545..2c6dab910d8 100644
--- a/source/gameengine/Converter/KX_ConvertActuators.cpp
+++ b/source/gameengine/Converter/KX_ConvertActuators.cpp
@@ -1058,11 +1058,12 @@ void BL_ConvertActuators(char* maggiename,
 				}
 
 				bool selfTerminated = (stAct->flag & ACT_STEERING_SELFTERMINATED) !=0;
+				bool enableVisualization = (stAct->flag & ACT_STEERING_ENABLEVISUALIZATION) !=0;
 				KX_SteeringActuator *tmpstact
 					= new KX_SteeringActuator(gameobj, mode, targetob, navmeshob,stAct->dist, 
 								stAct->velocity, stAct->acceleration, stAct->turnspeed, 
 								selfTerminated, stAct->updateTime,
-								scene->GetObstacleSimulation());
+								scene->GetObstacleSimulation(), enableVisualization);
 				baseact = tmpstact;
 				break;
 			}
diff --git a/source/gameengine/Ketsji/KX_NavMeshObject.cpp b/source/gameengine/Ketsji/KX_NavMeshObject.cpp
index b4e2c753832..63d84d0c028 100644
--- a/source/gameengine/Ketsji/KX_NavMeshObject.cpp
+++ b/source/gameengine/Ketsji/KX_NavMeshObject.cpp
@@ -446,6 +446,13 @@ bool KX_NavMeshObject::BuildVertIndArrays(RAS_MeshObject* meshobj, float *&verti
 
 bool KX_NavMeshObject::BuildNavMesh()
 {
+	if (m_navMesh)
+	{
+		delete m_navMesh;
+		m_navMesh = NULL;
+	}
+
+
 	if (GetMeshCount()==0)
 		return false;
 
@@ -628,25 +635,23 @@ dtStatNavMesh* KX_NavMeshObject::GetNavMesh()
 	return m_navMesh;
 }
 
-void KX_NavMeshObject::DrawNavMesh()
+void KX_NavMeshObject::DrawNavMesh(NavMeshRenderMode renderMode)
 {
 	if (!m_navMesh)
 		return;
 	MT_Vector3 color(0.f, 0.f, 0.f);
 	
-	enum RenderMode {POLYS ,DETAILED_TRIS, WALLS};
-	static const RenderMode renderMode = DETAILED_TRIS;// DETAILED_TRIS POLYS
 	switch (renderMode)
 	{
-	case POLYS :
-	case WALLS : 
+	case RM_POLYS :
+	case RM_WALLS : 
 		for (int pi=0; pi<m_navMesh->getPolyCount(); pi++)
 		{
 			const dtStatPoly* poly = m_navMesh->getPoly(pi);
 
 			for (int i = 0, j = (int)poly->nv-1; i < (int)poly->nv; j = i++)
 			{	
-				if (poly->n[j] && renderMode==WALLS) 
+				if (poly->n[j] && renderMode==RM_WALLS) 
 					continue;
 				const float* vif = m_navMesh->getVertex(poly->v[i]);
 				const float* vjf = m_navMesh->getVertex(poly->v[j]);
@@ -658,7 +663,7 @@ void KX_NavMeshObject::DrawNavMesh()
 			}
 		}
 		break;
-	case DETAILED_TRIS : 
+	case RM_TRIS : 
 		for (int i = 0; i < m_navMesh->getPolyDetailCount(); ++i)
 		{
 			const dtStatPoly* p = m_navMesh->getPoly(i);
@@ -800,7 +805,7 @@ PyTypeObject KX_NavMeshObject::Type = {
 	Methods,
 	0,
 	0,
-	&CValue::Type,
+	&KX_GameObject::Type,
 	0,0,0,0,0,0,
 	py_base_new
 };
@@ -814,6 +819,7 @@ PyMethodDef KX_NavMeshObject::Methods[] = {
 	KX_PYMETHODTABLE(KX_NavMeshObject, findPath),
 	KX_PYMETHODTABLE(KX_NavMeshObject, raycast),
 	KX_PYMETHODTABLE(KX_NavMeshObject, draw),
+	KX_PYMETHODTABLE(KX_NavMeshObject, rebuild),
 	{NULL,NULL} //Sentinel
 };
 
@@ -854,10 +860,30 @@ KX_PYMETHODDEF_DOC(KX_NavMeshObject, raycast,
 	return PyFloat_FromDouble(hit);
 }
 
-KX_PYMETHODDEF_DOC_NOARGS(KX_NavMeshObject, draw,
-				   "draw(): navigation mesh debug drawing\n")
+KX_PYMETHODDEF_DOC(KX_NavMeshObject, draw,
+				   "draw(mode): navigation mesh debug drawing\n"
+				   "mode: WALLS, POLYS, TRIS\n")
 {
-	DrawNavMesh();
+	char* mode;
+	NavMeshRenderMode renderMode = RM_TRIS;
+	if (PyArg_ParseTuple(args,"s:rebuild",&mode))
+	{
+		STR_String mode_str(mode);
+		if (mode_str.IsEqualNoCase("WALLS"))
+			renderMode = RM_WALLS;
+		else if (mode_str.IsEqualNoCase("POLYS"))
+			renderMode = RM_POLYS;
+		else if (mode_str.IsEqualNoCase("TRIS"))
+			renderMode = RM_TRIS;
+	}
+	DrawNavMesh(renderMode);
+	Py_RETURN_NONE;
+}
+
+KX_PYMETHODDEF_DOC_NOARGS(KX_NavMeshObject, rebuild,
+						  "rebuild(): rebuild navigation mesh\n")
+{
+	BuildNavMesh();
 	Py_RETURN_NONE;
 }
 
diff --git a/source/gameengine/Ketsji/KX_NavMeshObject.h b/source/gameengine/Ketsji/KX_NavMeshObject.h
index f06cd3b455d..d7b0fe033c2 100644
--- a/source/gameengine/Ketsji/KX_NavMeshObject.h
+++ b/source/gameengine/Ketsji/KX_NavMeshObject.h
@@ -60,7 +60,9 @@ public:
 	dtStatNavMesh* GetNavMesh();
 	int FindPath(const MT_Point3& from, const MT_Point3& to, float* path, int maxPathLen);
 	float Raycast(const MT_Point3& from, const MT_Point3& to);
-	void DrawNavMesh();
+
+	enum NavMeshRenderMode {RM_WALLS, RM_POLYS, RM_TRIS};
+	void DrawNavMesh(NavMeshRenderMode mode);
 	void DrawPath(const float *path, int pathLen, const MT_Vector3& color);
 
 	MT_Point3 TransformToLocalCoords(const MT_Point3& wpos);
@@ -72,7 +74,8 @@ public:
 
 	KX_PYMETHOD_DOC(KX_NavMeshObject, findPath);
 	KX_PYMETHOD_DOC(KX_NavMeshObject, raycast);
-	KX_PYMETHOD_DOC_NOARGS(KX_NavMeshObject, draw);
+	KX_PYMETHOD_DOC(KX_NavMeshObject, draw);
+	KX_PYMETHOD_DOC_NOARGS(KX_NavMeshObject, rebuild);
 #endif
 };
 
diff --git a/source/gameengine/Ketsji/KX_ObstacleSimulation.cpp b/source/gameengine/Ketsji/KX_ObstacleSimulation.cpp
index 14487a2e75c..dcaadd23e3f 100644
--- a/source/gameengine/Ketsji/KX_ObstacleSimulation.cpp
+++ b/source/gameengine/Ketsji/KX_ObstacleSimulation.cpp
@@ -166,8 +166,9 @@ static float interpolateToi(float a, const float* dir, const float* toi, const i
 	return 0;
 }
 
-KX_ObstacleSimulation::KX_ObstacleSimulation(MT_Scalar levelHeight)
+KX_ObstacleSimulation::KX_ObstacleSimulation(MT_Scalar levelHeight, bool enableVisualization)
 :	m_levelHeight(levelHeight)
+,	m_enableVisualization(enableVisualization)
 {
 
 }
@@ -276,6 +277,8 @@ void KX_ObstacleSimulation::AdjustObstacleVelocity(KX_Obstacle* activeObst, KX_N
 
 void KX_ObstacleSimulation::DrawObstacles()
 {
+	if (!m_enableVisualization)
+		return;
 	static const MT_Vector3 bluecolor(0,0,1);
 	static const MT_Vector3 normal(0.,0.,1.);
 	static const int SECTORS_NUM = 32;
@@ -341,8 +344,8 @@ bool KX_ObstacleSimulation::FilterObstacle(KX_Obstacle* activeObst, KX_NavMeshOb
 	return true;
 }
 
-KX_ObstacleSimulationTOI::KX_ObstacleSimulationTOI(MT_Scalar levelHeight):
-	KX_ObstacleSimulation(levelHeight),
+KX_ObstacleSimulationTOI::KX_ObstacleSimulationTOI(MT_Scalar levelHeight, bool enableVisualization):
+	KX_ObstacleSimulation(levelHeight, enableVisualization),
 	m_avoidSteps(32),
 	m_minToi(0.5f),
 	m_maxToi(1.2f),
diff --git a/source/gameengine/Ketsji/KX_ObstacleSimulation.h b/source/gameengine/Ketsji/KX_ObstacleSimulation.h
index c5b9a154c3b..b084f54d3b8 100644
--- a/source/gameengine/Ketsji/KX_ObstacleSimulation.h
+++ b/source/gameengine/Ketsji/KX_ObstacleSimulation.h
@@ -74,11 +74,12 @@ protected:
 	std::vector<KX_Obstacle*>	m_obstacles;
 
 	MT_Scalar m_levelHeight;
+	bool m_enableVisualization;
 
 	virtual KX_Obstacle* CreateObstacle(KX_GameObject* gameobj);
 	bool FilterObstacle(KX_Obstacle* activeObstacle, KX_NavMeshObject* activeNavMeshObj, KX_Obstacle* otherObstacle);
 public:
-	KX_ObstacleSimulation(MT_Scalar levelHeight);
+	KX_ObstacleSimulation(MT_Scalar levelHeight, bool enableVisualization);
 	virtual ~KX_ObstacleSimulation();
 
 	void DrawObstacles();
@@ -117,7 +118,7 @@ protected:
 	std::vector<TOICircle*>	m_toiCircles; // TOI circles (one per active agent)
 	virtual KX_Obstacle* CreateObstacle(KX_GameObject* gameobj);
 public:
-	KX_ObstacleSimulationTOI(MT_Scalar levelHeight);
+	KX_ObstacleSimulationTOI(MT_Scalar levelHeight, bool enableVisualization);
 	~KX_ObstacleSimulationTOI();
 	virtual void AdjustObstacleVelocity(KX_Obstacle* activeObst, KX_NavMeshObject* activeNavMeshObj, 
 									MT_Vector3& velocity, MT_Scalar maxDeltaSpeed,MT_Scalar maxDeltaAngle);
diff --git a/source/gameengine/Ketsji/KX_Scene.cpp b/source/gameengine/Ketsji/KX_Scene.cpp
index 950b1ea793d..5c002de6358 100644
--- a/source/gameengine/Ketsji/KX_Scene.cpp
+++ b/source/gameengine/Ketsji/KX_Scene.cpp
@@ -210,11 +210,12 @@ KX_Scene::KX_Scene(class SCA_IInputDevice* keyboarddevice,
 	m_rootnode = NULL;
 
 	m_bucketmanager=new RAS_BucketManager();
-
+	bool showObstacleSimulation = scene->gm.flag & GAME_SHOW_OBSTACLE_SIMULATION;
 	switch (scene->gm.obstacleSimulation)
 	{
 	case OBSTSIMULATION_TOI:
-		m_obstacleSimulation = new KX_ObstacleSimulationTOI((MT_Scalar)scene->gm.levelHeight);
+
+		m_obstacleSimulation = new KX_ObstacleSimulationTOI((MT_Scalar)scene->gm.levelHeight, showObstacleSimulation);
 		break;
 	default:
 		m_obstacleSimulation = NULL;
diff --git a/source/gameengine/Ketsji/KX_SteeringActuator.cpp b/source/gameengine/Ketsji/KX_SteeringActuator.cpp
index b733fc79dee..2153227f0c6 100644
--- a/source/gameengine/Ketsji/KX_SteeringActuator.cpp
+++ b/source/gameengine/Ketsji/KX_SteeringActuator.cpp
@@ -48,13 +48,14 @@ KX_SteeringActuator::KX_SteeringActuator(SCA_IObject *gameobj,
 									int mode,
 									KX_GameObject *target,
 									KX_GameObject *navmesh,
-									MT_Scalar distance,
-									MT_Scalar velocity, 
-									MT_Scalar acceleration,									
-									MT_Scalar turnspeed,
+									float distance,
+									float velocity, 
+									float acceleration,									
+									float turnspeed,
 									bool  isSelfTerminated,
 									int pathUpdatePeriod,
-									KX_ObstacleSimulation* simulation)	 : 
+									KX_ObstacleSimulation* simulation,
+									bool enableVisualization)	 : 
 	SCA_IActuator(gameobj, KX_ACT_STEERING),
 	m_mode(mode),
 	m_target(target),
@@ -67,6 +68,7 @@ KX_SteeringActuator::KX_SteeringActuator(SCA_IObject *gameobj,
 	m_updateTime(0),
 	m_isActive(false),	
 	m_simulation(simulation),	
+	m_enableVisualization(enableVisualization),
 	m_obstacle(NULL),
 	m_pathLen(0),
 	m_wayPointIdx(-1)
@@ -111,13 +113,11 @@ bool KX_SteeringActuator::UnlinkObject(SCA_IObject* clientobj)
 {
 	if (clientobj == m_target)
 	{
-		// this object is being deleted, we cannot continue to use it.
 		m_target = NULL;
 		return true;
 	}
 	else if (clientobj == m_navmesh)
 	{
-		// this object is being deleted, we cannot continue to useit.
 		m_navmesh = NULL;
 		return true;
 	}
@@ -229,10 +229,13 @@ bool KX_SteeringActuator::Update(double curtime, bool frame)
 						steervec = waypoint - mypos;
 						apply_steerforce = true;
 
-						//debug draw
-						static const MT_Vector3 PATH_COLOR(1,0,0);
-						m_navmesh->DrawPath(m_path, m_pathLen, PATH_COLOR);
-
+						
+						if (m_enableVisualization)
+						{
+							//debug draw
+							static const MT_Vector3 PATH_COLOR(1,0,0);
+							m_navmesh->DrawPath(m_path, m_pathLen, PATH_COLOR);
+						}
 					}	
 					
 				}
@@ -251,10 +254,12 @@ bool KX_SteeringActuator::Update(double curtime, bool frame)
 			//adjust velocity to avoid obstacles
 			if (m_simulation && m_obstacle && !newvel.fuzzyZero())
 			{
-				KX_RasterizerDrawDebugLine(mypos, mypos + newvel, MT_Vector3(1.,0.,0.));
+				if (m_enableVisualization)
+					KX_RasterizerDrawDebugLine(mypos, mypos + newvel, MT_Vector3(1.,0.,0.));
 				m_simulation->AdjustObstacleVelocity(m_obstacle, m_mode!=KX_STEERING_PATHFOLLOWING ? m_navmesh : NULL, 
 								newvel, m_acceleration*delta, m_turnspeed/180.0f*M_PI*delta);
-				KX_RasterizerDrawDebugLine(mypos, mypos + newvel, MT_Vector3(0.,1.,0.));
+				if (m_enableVisualization)
+					KX_RasterizerDrawDebugLine(mypos, mypos + newvel, MT_Vector3(0.,1.,0.));
 			}
 
 			if (isdyna)
@@ -313,7 +318,16 @@ PyMethodDef KX_SteeringActuator::Methods[] = {
 };
 
 PyAttributeDef KX_SteeringActuator::Attributes[] = {
+	KX_PYATTRIBUTE_INT_RW("bevaiour", KX_STEERING_NODEF+1, KX_STEERING_MAX-1, true, KX_SteeringActuator, m_mode),
 	KX_PYATTRIBUTE_RW_FUNCTION("target", KX_SteeringActuator, pyattr_get_target, pyattr_set_target),
+	KX_PYATTRIBUTE_RW_FUNCTION("navmesh", KX_SteeringActuator, pyattr_get_navmesh, pyattr_set_navmesh),
+	KX_PYATTRIBUTE_FLOAT_RW("distance", 0.0f, 1000.0f, KX_SteeringActuator, m_distance),
+	KX_PYATTRIBUTE_FLOAT_RW("velocity", 0.0f, 1000.0f, KX_SteeringActuator, m_velocity),
+	KX_PYATTRIBUTE_FLOAT_RW("acceleration", 0.0f, 1000.0f, KX_SteeringActuator, m_acceleration),
+	KX_PYATTRIBUTE_FLOAT_RW("turnspeed", 0.0f, 720.0f, KX_SteeringActuator, m_turnspeed),
+	KX_PYATTRIBUTE_BOOL_RW("selfterminated", KX_SteeringActuator, m_isSelfTerminated),
+	KX_PYATTRIBUTE_BOOL_RW("enableVisualization", KX_SteeringActuator, m_enableVisualization),
+	KX_PYATTRIBUTE_INT_RW("pathUpdatePeriod", -1, 100000, true, KX_SteeringActuator, m_pathUpdatePeriod),
 	{ NULL }	//Sentinel
 };
 
@@ -345,6 +359,34 @@ int KX_SteeringActuator::pyattr_set_target(void *self, const struct KX_PYATTRIBU
 	return PY_SET_ATTR_SUCCESS;
 }
 
+PyObject* KX_SteeringActuator::pyattr_get_navmesh(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef)
+{
+	KX_SteeringActuator* actuator = static_cast<KX_SteeringActuator*>(self);
+	if (!actuator->m_navmesh)	
+		Py_RETURN_NONE;
+	else
+		return actuator->m_navmesh->GetProxy();
+}
+
+int KX_SteeringActuator::pyattr_set_navmesh(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef, PyObject *value)
+{
+	KX_SteeringActuator* actuator = static_cast<KX_SteeringActuator*>(self);
+	KX_GameObject *gameobj;
+
+	if (!ConvertPythonToGameObject(value, &gameobj, true, "actuator.object = value: KX_SteeringActuator"))
+		return PY_SET_ATTR_FAIL; // ConvertPythonToGameObject sets the error
+
+	if (actuator->m_navmesh != NULL)
+		actuator->m_navmesh->UnregisterActuator(actuator);	
+
+	actuator->m_navmesh = dynamic_cast<KX_NavMeshObject*>(gameobj);
+
+	if (actuator->m_navmesh)
+		actuator->m_navmesh->RegisterActuator(actuator);
+
+	return PY_SET_ATTR_SUCCESS;
+}
+
 #endif // DISABLE_PYTHON
 
 /* eof */
diff --git a/source/gameengine/Ketsji/KX_SteeringActuator.h b/source/gameengine/Ketsji/KX_SteeringActuator.h
index 5ac5a9f37c4..b07d906dba3 100644
--- a/source/gameengine/Ketsji/KX_SteeringActuator.h
+++ b/source/gameengine/Ketsji/KX_SteeringActuator.h
@@ -53,16 +53,17 @@ class KX_SteeringActuator : public SCA_IActuator
 	KX_GameObject *m_target;
 	KX_NavMeshObject *m_navmesh;
 	int	m_mode;
-	MT_Scalar m_distance;
-	MT_Scalar m_velocity;
-	MT_Scalar m_acceleration;									
-	MT_Scalar m_turnspeed;
+	float m_distance;
+	float m_velocity;
+	float m_acceleration;									
+	float m_turnspeed;
 	KX_ObstacleSimulation* m_simulation;
 	
 	KX_Obstacle* m_obstacle;
 	double m_updateTime;
 	bool m_isActive;
 	bool m_isSelfTerminated;
+	bool m_enableVisualization;
 	float m_path[MAX_PATH_LENGTH*3];
 	int m_pathLen;
 	int m_pathUpdatePeriod;
@@ -82,13 +83,14 @@ public:
 						int mode,
 						KX_GameObject *target, 
 						KX_GameObject *navmesh,
-						MT_Scalar distance,
-						MT_Scalar velocity, 
-						MT_Scalar acceleration,									
-						MT_Scalar turnspeed,
+						float distance,
+						float velocity, 
+						float acceleration,									
+						float turnspeed,
 						bool  isSelfTerminated,
 						int pathUpdatePeriod,
-						KX_ObstacleSimulation* simulation);
+						KX_ObstacleSimulation* simulation,
+						bool enableVisualization);
 	virtual ~KX_SteeringActuator();
 	virtual bool Update(double curtime, bool frame);
 
@@ -106,6 +108,9 @@ public:
 	/* These are used to get and set m_target */
 	static PyObject* pyattr_get_target(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef);
 	static int pyattr_set_target(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef, PyObject *value);
+	static PyObject* pyattr_get_navmesh(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef);
+	static int pyattr_set_navmesh(void *self, const struct KX_PYATTRIBUTE_DEF *attrdef, PyObject *value);
+	
 
 #endif // DISABLE_PYTHON