text: /**
   * Copyright (c) 2006-2021 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_PULLEY_JOINT_H
  #define LOVE_PHYSICS_BOX2D_PULLEY_JOINT_H
  
  // Module
  #include "Joint.h"
  
  namespace love
  {
  namespace physics
  {
  namespace box2d
  {
  
  /**
   * The PulleyJoint The pulley connects two bodies to ground and
   * to each other. As one body goes up, the other goes down. The
   * total length of the pulley rope is conserved according to the
   * initial configuration: length1 + ratio * length2 <= constant.
   **/
  class PulleyJoint : public Joint
  {
  public:
  
  	static love::Type type;
  
  	/**
  	 * Creates a PulleyJoint connecting bodyA to bodyB.
  	 **/
  	PulleyJoint(Body *bodyA, Body *bodyB, b2Vec2 groundAnchorA, b2Vec2 groundAnchorB, b2Vec2 anchorA, b2Vec2 anchorB, float ratio, bool collideConnected);
  
  	virtual ~PulleyJoint();
  
  	/**
  	 * Gets the ground anchors position in world
  	 * coordinates.
  	 **/
  	int getGroundAnchors(lua_State *L);
  
  	/**
  	 * Gets the current length of the segment attached to bodyA.
  	 **/
  	float getLengthA() const;
  
  	/**
  	 * Gets the current length of the segment attached to bodyB.
  	 **/
  	float getLengthB() const;
  
  	/**
  	 * Gets the pulley ratio.
  	 **/
  	float getRatio() const;
  
  private:
  	// The Box2D DistanceJoint object.
  	b2PulleyJoint *joint;
  };
  
  } // box2d
  } // physics
  } // love
  
  #endif // LOVE_PHYSICS_BOX2D_PULLEY_JOINT_H
  