Line data    Source code

       1             : /* Copyright (C) 2019 Wildfire Games.
       2             :  * This file is part of 0 A.D.
       3             :  *
       4             :  * 0 A.D. is free software: you can redistribute it and/or modify
       5             :  * it under the terms of the GNU General Public License as published by
       6             :  * the Free Software Foundation, either version 2 of the License, or
       7             :  * (at your option) any later version.
       8             :  *
       9             :  * 0 A.D. is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12             :  * GNU General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU General Public License
      15             :  * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
      16             :  */
      17             : 
      18             : #ifndef INCLUDED_PARTICLEMANAGER
      19             : #define INCLUDED_PARTICLEMANAGER
      20             : 
      21             : #include "graphics/ParticleEmitter.h"
      22             : #include "graphics/ParticleEmitterType.h"
      23             : 
      24             : #include <boost/random/mersenne_twister.hpp>
      25             : #include <list>
      26             : #include <unordered_map>
      27             : 
      28             : class SceneCollector;
      29             : 
      30             : class CParticleManager
      31             : {
      32             : public:
      33             :     CParticleManager();
      34             :     ~CParticleManager();
      35             : 
      36             :     CParticleEmitterTypePtr LoadEmitterType(const VfsPath& path);
      37             : 
      38             :     /**
      39             :      * Tell the manager to handle rendering of an emitter that is no longer
      40             :      * attached to a unit.
      41             :      */
      42             :     void AddUnattachedEmitter(const CParticleEmitterPtr& emitter);
      43             : 
      44             :     /**
      45             :      * Delete unattached emitters if we don't wish to see them anymore (like in actor viewer)
      46             :      */
      47             :     void ClearUnattachedEmitters();
      48             : 
      49             :     void RenderSubmit(SceneCollector& collector, const CFrustum& frustum);
      50             : 
      51             :     void Interpolate(const float simFrameLength);
      52             : 
      53           0 :     float GetCurrentTime() const { return m_CurrentTime; }
      54             : 
      55             :     Status ReloadChangedFile(const VfsPath& path);
      56             : 
      57             :     /// Random number generator shared between all particle emitters.
      58             :     boost::mt19937 m_RNG;
      59             : 
      60             : private:
      61             :     float m_CurrentTime;
      62             : 
      63             :     std::list<CParticleEmitterPtr> m_UnattachedEmitters;
      64             : 
      65             :     std::unordered_map<VfsPath, CParticleEmitterTypePtr> m_EmitterTypes;
      66             : };
      67             : 
      68             : #endif // INCLUDED_PARTICLEMANAGER