Geometry - interface

// (C) 2011 Tim Gurto

#ifndef GEOMETRY_H
#define GEOMETRY_H

#include <map>
#include "d3d_wrappers.h"
#include "Shape.h"

typedef std::map<int, Shape> shapesIndex_t;

//Maintains a contiguous list of "shapes" (sets of vertices),
//which can be independently transformed or removed.

class Geometry{

   const static size_t ARRAY_CHUNK_SIZE;
   const static size_t VERTEX_BUFFER_SIZE;

   //a directory of shapes within the array
   shapesIndex_t shapesIndex_;

   //next shape index; removed shapes' indices are not reclaimed
   int nextIndex_;

   //the vertex array
   CUSTOMVERTEX *array_;
   size_t
      arraySize_,
      totalVertices_;



public:
   Geometry(LPDIRECT3DVERTEXBUFFER9 *vertexBuffer = 0);
   ~Geometry();

   int addShape(CUSTOMVERTEX* start, size_t size, D3DMATERIAL9 *material = 0); //returns index
   void removeShape(int index);

   //copies vertices into the buffer
   void pushBuffer() const;

   //renders geometry
   void render() const;

   //transform shape
   void translate(int index, float x, float y);
   void rotate(int index, double angle);
   void scale(int index, float x, float y);

   //debugging
   void printShapes() const;
};

#endif