diff --git a/libs/openengine/bullet/physic.cpp b/libs/openengine/bullet/physic.cpp
index ca7709c2c..4ced2db90 100644
--- a/libs/openengine/bullet/physic.cpp
+++ b/libs/openengine/bullet/physic.cpp
@@ -36,6 +36,10 @@ namespace Physic
         mEngine->addRigidBody(mBody, false);  //Add rigid body to dynamics world, but do not add to object map
         pmove = new playerMove;
         pmove->mEngine = mEngine;
+        btBoxShape* box = static_cast<btBoxShape*> (mBody->getCollisionShape());
+        btVector3 size = box->getHalfExtentsWithMargin();
+        Ogre::Vector3 halfExtents = Ogre::Vector3(size.getX(), size.getY(), size.getZ());
+        pmove->ps.halfExtents = halfExtents;
     }
 
     PhysicActor::~PhysicActor()
@@ -58,6 +62,11 @@ namespace Physic
     {
         pmove->ps.gravity = gravity;
     }
+    
+    void PhysicActor::setSpeed(float speed)
+    {
+        pmove->ps.speed = speed;
+    }
 
     void PhysicActor::enableCollisions(bool collision)
     {
@@ -137,6 +146,10 @@ namespace Physic
         //Create the newly scaled rigid body
         mBody = mEngine->createAndAdjustRigidBody(mMesh, mName, scale, position, rotation);
         mEngine->addRigidBody(mBody, false);  //Add rigid body to dynamics world, but do not add to object map
+        btBoxShape* box = static_cast<btBoxShape*> (mBody->getCollisionShape());
+        btVector3 size = box->getHalfExtentsWithMargin();
+        Ogre::Vector3 halfExtents = Ogre::Vector3(size.getX(), size.getY(), size.getZ());
+        pmove->ps.halfExtents = halfExtents;
     }
 
     void PhysicActor::runPmove(){
diff --git a/libs/openengine/bullet/physic.hpp b/libs/openengine/bullet/physic.hpp
index 56b7f1fb7..a69d80e53 100644
--- a/libs/openengine/bullet/physic.hpp
+++ b/libs/openengine/bullet/physic.hpp
@@ -81,6 +81,8 @@ namespace Physic
 
         void setGravity(float gravity);
 
+        void setSpeed(float speed);
+
         void setJumpVelocity(float velocity);
 
         void enableCollisions(bool collision);
diff --git a/libs/openengine/bullet/pmove.cpp b/libs/openengine/bullet/pmove.cpp
index f3e1a470a..645abf205 100644
--- a/libs/openengine/bullet/pmove.cpp
+++ b/libs/openengine/bullet/pmove.cpp
@@ -231,7 +231,7 @@ bool	PM_SlideMove( bool gravity )
 		// see if we can make it there
 		//pm->trace ( &trace, pm->ps->origin, pm->mins, pm->maxs, end, pm->ps->clientNum, pm->tracemaskg);
 		//tracefunc(&trace, *(const D3DXVECTOR3* const)&(pm->ps.origin), *(const D3DXVECTOR3* const)&(end), *(const D3DXVECTOR3* const)&(pm->ps.velocity), 0, pml.traceObj);
-		newtrace(&trace, pm->ps.origin, end, halfExtents, Ogre::Math::DegreesToRadians (pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+		newtrace(&trace, pm->ps.origin, end, pm->ps.halfExtents, Ogre::Math::DegreesToRadians (pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 
 		if (trace.allsolid) 
 		{
@@ -449,7 +449,7 @@ int PM_StepSlideMove( bool gravity )
 	//pm->trace (&trace, start_o, pm->mins, pm->maxs, down, pm->ps->clientNum, pm->tracemask);
 	//tracefunc(&trace, start_o, down, , 0, pml.scene);
 	//tracefunc(&trace, *(const D3DXVECTOR3* const)&start_o, *(const D3DXVECTOR3* const)&down, D3DXVECTOR3(0.0f, -STEPSIZE, 0.0f), 0, pml.traceObj);
-	newtrace(&trace, down, start_o, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+	newtrace(&trace, down, start_o, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 	
 	// up = vec3(0, 0, 1)
 	//VectorSet(up, 0, 0, 1);
@@ -479,7 +479,7 @@ int PM_StepSlideMove( bool gravity )
 	// test the player position if they were a stepheight higher
 	//pm->trace (&trace, start_o, pm->mins, pm->maxs, up, pm->ps->clientNum, pm->tracemask);
 	//tracefunc(&trace, *(const D3DXVECTOR3* const)&start_o, *(const D3DXVECTOR3* const)&up, D3DXVECTOR3(0.0f, STEPSIZE, 0.0f), 0, pml.traceObj);
-	newtrace(&trace, start_o, up, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+	newtrace(&trace, start_o, up, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 	if ( trace.allsolid ) 
 	{
 		//if ( pm->debugLevel ) 
@@ -510,7 +510,7 @@ int PM_StepSlideMove( bool gravity )
 
 	//pm->trace (&trace, pm->ps->origin, pm->mins, pm->maxs, down, pm->ps->clientNum, pm->tracemask);
 	//tracefunc(&trace, *(const D3DXVECTOR3* const)&(pm->ps.origin), *(const D3DXVECTOR3* const)&down, D3DXVECTOR3(0.0f, -STEPSIZE, 0.0f), 0, pml.traceObj);
-	newtrace(&trace, pm->ps.origin, down, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+	newtrace(&trace, pm->ps.origin, down, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 	if ( !trace.allsolid )
 		//VectorCopy (trace.endpos, pm->ps->origin);
 		pm->ps.origin = trace.endpos;
@@ -902,7 +902,7 @@ static void PM_WalkMove( playerMove* const pmove )
 				if (pmove->hasWater )
 				{
 					const float waterHeight = pmove->waterHeight;
-					const float waterSoundStepHeight = waterHeight + halfExtents.y;
+					const float waterSoundStepHeight = waterHeight + pm->ps.halfExtents.y;
 					if (pmove->ps.origin.y < waterSoundStepHeight)
 						step_underwater = true;
 				}
@@ -1182,7 +1182,7 @@ void PM_GroundTraceMissed()
 
 		//pm->trace (&trace, pm->ps->origin, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask);
 		//tracefunc(&trace, *(const D3DXVECTOR3* const)&(pm->ps.origin), *(const D3DXVECTOR3* const)&point, D3DXVECTOR3(0.0f, -64.0f, 0.0f), 0, pml.traceObj);
-		newtrace(&trace, pm->ps.origin, point, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+		newtrace(&trace, pm->ps.origin, point, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 		//It hit the ground below
         if ( trace.fraction < 1.0 && pm->ps.origin.z > trace.endpos.z) 
 		{
@@ -1228,7 +1228,7 @@ static bool PM_CorrectAllSolid(traceResults* const trace)
 
 				//pm->trace (trace, point, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask);
 				//tracefunc(trace, *(const D3DXVECTOR3* const)&point, *(const D3DXVECTOR3* const)&point, D3DXVECTOR3(0.0f, 0.0f, 0.0f), 0, pml.traceObj);
-				newtrace(trace, point, point, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+				newtrace(trace, point, point, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 
 				if ( !trace->allsolid ) 
 				{
@@ -1240,7 +1240,7 @@ static bool PM_CorrectAllSolid(traceResults* const trace)
 
 					//pm->trace (trace, pm->ps->origin, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask);
 					//tracefunc(trace, *(const D3DXVECTOR3* const)&(pm->ps.origin), *(const D3DXVECTOR3* const)&point, D3DXVECTOR3(0.0f, -0.25f, 0.0f), 0, pml.traceObj);
-					newtrace(trace, pm->ps.origin, point, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+					newtrace(trace, pm->ps.origin, point, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 					pml.groundTrace = *trace;
 					return true;
 				}
@@ -1341,7 +1341,7 @@ static void PM_CrashLand( void )
 			{
 				
 					const float waterHeight = pm->waterHeight;
-					const float waterHeightSplash = waterHeight + halfExtents.y;
+					const float waterHeightSplash = waterHeight + pm->ps.halfExtents.y;
 					if (pm->ps.origin.z < waterHeightSplash)
 					{
 						splashSound = true;
@@ -1416,7 +1416,7 @@ static void PM_GroundTrace( void )
 
 	//pm->trace (&trace, pm->ps->origin, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask);
 	//tracefunc(&trace, *(const D3DXVECTOR3* const)&(pm->ps.origin), *(const D3DXVECTOR3* const)&point, D3DXVECTOR3(0.0f, -0.25f, 0.0f), 0, pml.traceObj);
-	newtrace(&trace, pm->ps.origin, point, halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
+	newtrace(&trace, pm->ps.origin, point, pm->ps.halfExtents, Ogre::Math::DegreesToRadians(pm->ps.viewangles.y), pm->isInterior, pm->mEngine);
 	pml.groundTrace = trace;
 
 	// do something corrective if the trace starts in a solid...
diff --git a/libs/openengine/bullet/pmove.h b/libs/openengine/bullet/pmove.h
index 63d03f86a..fa303184e 100644
--- a/libs/openengine/bullet/pmove.h
+++ b/libs/openengine/bullet/pmove.h
@@ -23,7 +23,7 @@ Quake 3 Arena is copyright (C) 1999-2005 Id Software, Inc.
 extern SceneInstance* global_lastscene;
 #endif*/
 
-static const Ogre::Vector3 halfExtents(14.64f * 2, 14.24f * 2, 33.25f * 2);
+static const Ogre::Vector3 halfExtentsDefault(14.64f * 2, 14.24f * 2, 33.25f * 2);
 
 #define	MAX_CLIP_PLANES	5
 #define	OVERCLIP 1.001f
@@ -89,7 +89,7 @@ struct playerMove
 {
 	struct playerStruct
 	{
-		playerStruct() : gravity(800.0f), speed(480.0f), jump_velocity(270), pmove_framecount(20), groundEntityNum(ENTITYNUM_NONE), commandTime(40), move_type(PM_NOCLIP), pm_time(0), snappingImplemented(true), bSnap(false), counter(-1)
+		playerStruct() : gravity(800.0f), speed(480.0f), jump_velocity(270), pmove_framecount(20), groundEntityNum(ENTITYNUM_NONE), commandTime(40), move_type(PM_NOCLIP), pm_time(0), snappingImplemented(true), bSnap(false), counter(-1), halfExtents(halfExtentsDefault)
 		{
 			origin = Ogre::Vector3(0.0f, 0.0f, 0.0f);
 			velocity = Ogre::Vector3(0.0f, 0.0f, 0.0f);
@@ -116,6 +116,7 @@ struct playerMove
 
 		Ogre::Vector3 velocity;
 		Ogre::Vector3 origin;
+        Ogre::Vector3 halfExtents;
         bool bSnap;
         bool snappingImplemented;
         int counter;