//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------

#ifndef _OPTIMIZEDPOLYLIST_H_
#define _OPTIMIZEDPOLYLIST_H_

#ifndef _ABSTRACTPOLYLIST_H_
#include "collision/abstractPolyList.h"
#endif

#define DEV 0.01

/// A concrete, renderable PolyList
///
/// This class is used to store geometry from a PolyList query.
///
/// It allows you to render this data, as well.
///
/// @see AbstractPolyList
class OptimizedPolyList : public AbstractPolyList
{
  public:

   struct Poly
   {
      S32 plane;
      SceneObject* object;
      S32 material;
      U32 vertexStart;
      U32 vertexCount;
      U32 surfaceKey;

      U32 triangleLightingStartIndex;

      Poly() { plane = -1; vertexCount = 0; material = -1; };
   };

   struct FullPoly
   {
      PlaneF plane;
      SceneObject* object;
      S32 material;
      U32 surfaceKey;

      Vector<U32> indexes;
      Vector<Point3F> vertexes;
   };

   enum
   {
      NonShared = 0,
      Concave,
      Convex
   };

   struct Edge
   {
      U32 type;
      S32 vertexes[2];
      S32 faces[2];
   };

   struct TriangleLighting
   {
     U32 lightMapId;
	  PlaneF lightMapEquationX;
	  PlaneF lightMapEquationY;
   };

   Vector<TriangleLighting> mTriangleLightingList;

   const TriangleLighting *getTriangleLighting(const U32 index)
   {
      if(index >= mTriangleLightingList.size())
         return NULL;
      return &mTriangleLightingList[index];
   }

   typedef Vector<PlaneF>  PlaneList;
   typedef Vector<Point3F> VertexList;
   typedef Vector<Poly>    PolyList;
   typedef Vector<U32>     IndexList;
   typedef Vector<Edge>    EdgeList;

   PolyList    mPolyList;
   VertexList  mVertexList;
   IndexList   mIndexList;
   PlaneList   mPlaneList;
   EdgeList    mEdgeList;

   PlaneList   mPolyPlaneList;

  public:
   OptimizedPolyList();
   ~OptimizedPolyList();
   void clear();

   // Virtual methods
   U32  addPoint(const Point3F& p);
   U32  addPlane(const PlaneF& plane);
   void begin(U32 material,U32 surfaceKey);
   void plane(U32 v1,U32 v2,U32 v3);
   void plane(const PlaneF& p);
   void plane(const U32 index);
   void vertex(U32 vi);
   void end();

   inline bool isEqual(Point3F& a, Point3F& b)
   {
      return( ( mFabs( a.x - b.x ) < DEV ) &&
              ( mFabs( a.y - b.y ) < DEV ) &&
              ( mFabs( a.z - b.z ) < DEV ) );
   }

   void copyPolyToList(OptimizedPolyList* target, U32 pdx) const;
   void copyPolyToList(OptimizedPolyList* target, const FullPoly& poly) const;
   FullPoly getFullPoly(U32 pdx);

   void render();
   bool isEmpty() const;

  protected:
   const PlaneF& getIndexedPlane(const U32 index);
};

#endif  // _OPTIMIZEDPOLYLIST_H_