Initial Mercurial commit.

src/modules/physics/box2d/DistanceJoint.h

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+/**
+* Copyright (c) 2006-2009 LOVE Development Team
+* 
+* This software is provided 'as-is', without any express or implied
+* warranty.  In no event will the authors be held liable for any damages
+* arising from the use of this software.
+* 
+* Permission is granted to anyone to use this software for any purpose,
+* including commercial applications, and to alter it and redistribute it
+* freely, subject to the following restrictions:
+* 
+* 1. The origin of this software must not be misrepresented; you must not
+*    claim that you wrote the original software. If you use this software
+*    in a product, an acknowledgment in the product documentation would be
+*    appreciated but is not required.
+* 2. Altered source versions must be plainly marked as such, and must not be
+*    misrepresented as being the original software.
+* 3. This notice may not be removed or altered from any source distribution.
+**/
+
+#ifndef LOVE_PHYSICS_BOX2D_DISTANCE_JOINT_H
+#define LOVE_PHYSICS_BOX2D_DISTANCE_JOINT_H
+
+// Module
+#include "Joint.h"
+
+namespace love
+{
+namespace physics
+{
+namespace box2d
+{
+	/**
+	* The DistanceJoint keeps Bodies at a fixed distance 
+	* from eachother.
+	**/
+	class DistanceJoint : public Joint
+	{
+	private:
+		// The Box2D DistanceJoint object.
+		b2DistanceJoint * joint;
+	public:
+
+		/**
+		* Creates a DistanceJoint connecting body1 to body2. 
+		**/
+		DistanceJoint(Body * body1, Body * body2, float x1, float y1, float x2, float y2);
+		
+		virtual ~DistanceJoint();
+
+		/**
+		* Sets the equilibrium distance between the two bodies.
+		**/
+		void setLength(float length);
+
+		/**
+		* Gets the equilibrium distance between the two bodies.
+		**/
+		float getLength() const;
+
+		/**
+		* Sets the response speed.
+		**/
+		void setFrequency(float hz);
+
+		/**
+		* Gets the response speed.
+		**/
+		float getFrequency() const;
+
+		/**
+		* Sets the damping ratio.
+		* 0 = no damping, 1 = critical damping.
+		**/
+		void setDamping(float d);
+
+		/**
+		* Gets the damping ratio.
+		* 0 = no damping, 1 = critical damping.
+		**/
+		float getDamping() const;
+
+	};
+
+} // box2d
+} // physics
+} // love
+
+#endif // LOVE_PHYSICS_BOX2D_DISTANCE_JOINT_H