PhysicsFactory.hh

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/*
 * Copyright 2011 Nate Koenig
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/
/*
 * Desc: Factory for creating physics engine
 * Author: Nate Koenig
 * Date: 21 May 2009
 */

#ifndef _PHYSICSFACTORY_HH_
#define _PHYSICSFACTORY_HH_

#include <string>
#include <map>

#include "physics/PhysicsTypes.hh"

namespace gazebo
{
  namespace physics
  {

    typedef PhysicsEnginePtr (*PhysicsFactoryFn) (WorldPtr world);

    class PhysicsFactory
    {
      public: static void RegisterAll();

      public: static void RegisterPhysicsEngine(std::string _className,
                  PhysicsFactoryFn _factoryfn);

      public: static PhysicsEnginePtr NewPhysicsEngine(
                  const std::string &_className, WorldPtr _world);

      private: static std::map<std::string, PhysicsFactoryFn> engines;
    };

    #define GZ_REGISTER_PHYSICS_ENGINE(name, classname) \
    PhysicsEnginePtr New##classname(WorldPtr _world) \
    { \
      return PhysicsEnginePtr(new gazebo::physics::classname(_world)); \
    } \
    void Register##classname() \
    {\
      PhysicsFactory::RegisterPhysicsEngine(name, New##classname);\
    }

  }
}
#endif