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# csplugincommon/particlesys/particle.h

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    00001 /*
    00002     Copyright (C) 2003 by Martin Geisse <mgeisse@gmx.net>
    00003
    00004     This library is free software; you can redistribute it and/or
    00005     modify it under the terms of the GNU Library General Public
    00006     License as published by the Free Software Foundation; either
    00007     version 2 of the License, or (at your option) any later version.
    00008
    00009     This library is distributed in the hope that it will be useful,
    00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00012     Library General Public License for more details.
    00013
    00014     You should have received a copy of the GNU Library General Public
    00015     License along with this library; if not, write to the Free
    00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
    00017 */
    00018
    00019 #ifndef __CS_CSPLUGINCOMMON_PARTICLESYS_PARTICLE_H__
    00020 #define __CS_CSPLUGINCOMMON_PARTICLESYS_PARTICLE_H__
    00021
    00026 #include "csextern.h"
    00027
    00028 #include "csgfx/shadervarcontext.h"
    00029 #include "cstool/framedataholder.h"
    00030 #include "cstool/meshobjtmpl.h"
    00031 #include "cstool/rendermeshholder.h"
    00032 #include "csutil/cscolor.h"
    00033 #include "csutil/dirtyaccessarray.h"
    00034 #include "csutil/weakref.h"
    00035
    00036 #include "iengine/lightmgr.h"
    00037 #include "imesh/partsys.h"
    00038 #include "ivideo/rendermesh.h"
    00039
    00047 const int CS_PARTICLE_AUTODELETE        = 1;
    00048
    00050 const int CS_PARTICLE_SCALE             = 2;
    00051
    00053 const int CS_PARTICLE_ROTATE            = 4;
    00054
    00056 const int CS_PARTICLE_AXIS              = 8;
    00057
    00059 const int CS_PARTICLE_ALIGN_Y           = 512;
    00060
    00070 class CS_CRYSTALSPACE_EXPORT csNewParticleSystem :
    00071   public scfImplementationExt1<csNewParticleSystem,
    00072     csMeshObject, iParticleState>
    00073 {
    00074 protected:
    00076   iMeshObjectFactory *Factory;
    00077   csRef<iLightManager> light_mgr;
    00078
    00079   bool initialized;
    00080
    00081   csRenderMeshHolder rmHolder;
    00082   struct PerFrameData
    00083   {
    00084     csRef<csRenderBufferHolder> bufferHolder;
    00085     csRef<iRenderBuffer> vertex_buffer;
    00086   };
    00087   csFrameDataHolder<PerFrameData> perFrameHolder;
    00088   uint lastDataUpdateFrame;
    00089
    00090   int VertexCount;
    00091   int TriangleCount;
    00092   csRef<iRenderBuffer> texel_buffer;
    00093   csRef<iRenderBuffer> normal_buffer;
    00094   csRef<iRenderBuffer> color_buffer;
    00095   csRef<iRenderBuffer> index_buffer;
    00096
    00097   csWeakRef<iGraphics3D> g3d;
    00098
    00099   csTriangle* triangles;
    00100   csVector2* texels;
    00101   csColor* colors;
    00102
    00104   int StorageCount;
    00105
    00107   int ParticleFlags;
    00108
    00110   int ParticleCount;
    00111
    00113   csVector3 *PositionArray;
    00114
    00116   csVector2 Scale;
    00117
    00119   float Angle;
    00120
    00122   csColor Color;
    00123
    00125   uint MixMode;
    00126
    00128   csRef<iMaterialWrapper> Material;
    00129
    00131   csVector3 Axis;
    00132
    00134   csTicks PrevTime;
    00135
    00136   // bounding box
    00137   csBox3 Bounds;
    00138
    00139   // clipping flags (passed from DrawTest to Draw)
    00140   int ClipPortal, ClipPlane, ClipZ;
    00141
    00142   // use lighting ?
    00143   bool Lighting;
    00144
    00145   // lighting data
    00146   csColor *LitColors;
    00147
    00149   bool self_destruct;
    00150   csTicks time_to_live; // msec
    00151
    00153   bool change_color; csColor colorpersecond;
    00155   bool change_size; float scalepersecond;
    00157   bool change_alpha; float alphapersecond; float alpha_now;
    00159   bool change_rotation; float anglepersecond;
    00160
    00166   virtual void Allocate (int newsize, int copysize);
    00167
    00168   virtual void SetupObject ();
    00169
    00173   void SetupParticles (const csReversibleTransform&, csVector3* vertices);
    00174
    00175 public:
    00177   csNewParticleSystem (iEngine *, iMeshObjectFactory *, int ParticleFlags);
    00178
    00180   virtual ~csNewParticleSystem ();
    00181
    00183   void SetCount (int num);
    00184
    00186   void Compact ();
    00187
    00189   void UpdateBounds ();
    00190
    00192   virtual void Update (csTicks passedTime);
    00193
    00195   virtual iMeshObjectFactory* GetFactory () const;
    00196
    00197   virtual csRenderMesh** GetRenderMeshes (int& n, iRenderView* rview,
    00198     iMovable* movable, uint32 frustum_mask);
    00199
    00201   void UpdateLighting (const csArray<iLightSectorInfluence*>&, iMovable*);
    00202
    00204   virtual void NextFrame (csTicks current_time, const csVector3& pos);
    00205
    00207   virtual bool SetColor (const csColor& color);
    00208
    00210   virtual void AddColor (const csColor& color);
    00211
    00213   virtual const csColor& GetColor () const;
    00214
    00216   virtual bool SetMaterialWrapper (iMaterialWrapper* material);
    00217
    00219   virtual iMaterialWrapper* GetMaterialWrapper () const;
    00220
    00222   virtual bool GetLighting () const;
    00223
    00225   virtual void SetLighting (bool enable);
    00226
    00227   virtual void GetObjectBoundingBox (csBox3& bbox)
    00228   {
    00229     SetupObject ();
    00230     bbox = Bounds;
    00231   }
    00232   virtual void SetObjectBoundingBox (const csBox3& bbox)
    00233   {
    00234     Bounds = bbox;
    00235     ShapeChanged ();
    00236   }
    00237
    00239   inline void SetSelfDestruct (csTicks t)
    00240   { self_destruct=true; time_to_live = t; };
    00242   inline void UnSetSelfDestruct () { self_destruct=false; }
    00244   inline bool GetSelfDestruct () const { return self_destruct; }
    00246   inline csTicks GetTimeToLive () const { return time_to_live; }
    00247
    00249   inline void SetChangeColor(const csColor& col)
    00250   {change_color = true; colorpersecond = col;}
    00252   inline void UnsetChangeColor() {change_color=false;}
    00254   inline bool GetChangeColor (csColor& col) const
    00255   { if(!change_color) return false; col = colorpersecond; return true; }
    00256
    00258   inline void SetChangeSize(float factor)
    00259   {change_size = true; scalepersecond = factor;}
    00261   inline void UnsetChangeSize() {change_size=false;}
    00263   inline bool GetChangeSize (float& factor) const
    00264   { if(!change_size) return false; factor = scalepersecond; return true; }
    00265
    00267   inline void SetAlpha(float alpha)
    00268   {alpha_now = alpha; MixMode = CS_FX_SETALPHA (alpha); }
    00270   inline float GetAlpha() const {return alpha_now;}
    00272   inline void SetChangeAlpha(float factor)
    00273   {change_alpha = true; alphapersecond = factor;}
    00275   inline void UnsetChangeAlpha() {change_alpha=false;}
    00277   inline bool GetChangeAlpha (float& factor) const
    00278   { if(!change_alpha) return false; factor = alphapersecond; return true; }
    00279
    00281   inline void SetChangeRotation(float angle)
    00282   {
    00283     change_rotation = true;
    00284     anglepersecond = angle;
    00285     // @@@??? Ok?
    00286     ParticleFlags |= CS_PARTICLE_ROTATE;
    00287   }
    00289   inline void UnsetChangeRotation() { change_rotation=false; }
    00291   inline bool GetChangeRotation (float& angle) const
    00292   { if(!change_rotation) return false; angle = anglepersecond; return true; }
    00293
    00294   virtual void SetMixMode (uint mode) { MixMode = mode; }
    00295   virtual uint GetMixMode () const { return MixMode; }
    00296 };
    00297
    00300 #endif // __CS_CSPLUGINCOMMON_PARTICLESYS_PARTICLE_H__