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diff --git a/source/gameengine/Ketsji/KX_ConstraintActuator.h b/source/gameengine/Ketsji/KX_ConstraintActuator.h
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+/**
+ * KX_ConstraintActuator.h
+ *
+ * $Id$
+ *
+ * ***** BEGIN GPL/BL DUAL 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, 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/BL DUAL LICENSE BLOCK *****
+ */
+
+#ifndef __KX_CONSTRAINTACTUATOR
+#define __KX_CONSTRAINTACTUATOR
+
+#include "SCA_IActuator.h"
+#include "MT_Scalar.h"
+
+
+class KX_ConstraintActuator : public SCA_IActuator
+{
+	Py_Header;
+	
+	// Damp time (int),
+	int m_dampTime;
+	// min (float),
+	float m_minimumBound;
+	// max (float),
+	float m_maximumBound;
+	// locrotxyz choice (pick one): only one choice allowed at a time!
+	int m_locrot;
+
+	/**
+	 * Clamp <var> to <min>, <max>. Borders are included (in as far as
+	 * float comparisons are good for equality...).
+	 */
+	void Clamp(MT_Scalar &var, float min, float max);
+
+	
+ public:
+	enum KX_CONSTRAINTTYPE {
+		KX_ACT_CONSTRAINT_NODEF = 0,
+		KX_ACT_CONSTRAINT_LOCX,
+		KX_ACT_CONSTRAINT_LOCY,
+		KX_ACT_CONSTRAINT_LOCZ,
+		KX_ACT_CONSTRAINT_ROTX,
+		KX_ACT_CONSTRAINT_ROTY,
+		KX_ACT_CONSTRAINT_ROTZ,
+		KX_ACT_CONSTRAINT_MAX
+	};
+
+	bool IsValidMode(KX_CONSTRAINTTYPE m); 
+
+	KX_ConstraintActuator(SCA_IObject* gameobj,
+						  int damptime,
+						  float min,
+						  float max,
+						  int locrot,
+						  PyTypeObject* T=&Type);
+	virtual ~KX_ConstraintActuator();
+	virtual CValue* GetReplica() {
+		KX_ConstraintActuator* replica = new KX_ConstraintActuator(*this);
+		replica->ProcessReplica();
+		// this will copy properties and so on...
+		CValue::AddDataToReplica(replica);
+		return replica;
+	};
+
+	virtual bool Update(double curtime,double deltatime);
+
+	/* --------------------------------------------------------------------- */
+	/* Python interface ---------------------------------------------------- */
+	/* --------------------------------------------------------------------- */
+
+	virtual PyObject*  _getattr(char *attr);
+
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,SetDamp);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,GetDamp);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,SetMin);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,GetMin);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,SetMax);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,GetMax);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,SetLimit);
+	KX_PYMETHOD_DOC(KX_ConstraintActuator,GetLimit);
+
+};
+#endif //__KX_CONSTRAINTACTUATOR