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/***************************************************************************
Polygon.h - description
-------------------
begin : Wed Jan 26 2000
copyright : (C) 2000 by Henrik Enqvist
email : henqvist@excite.com
***************************************************************************/
#ifndef POLYGON_H
#define POLYGON_H
//#define EM_POLY_FLAT 1
//#define EM_POLY_SMOOTH 2
//#define EM_POLY_HIDDEN 4
//#define EM_WIREFRAME 8
//#define EM_ALLWAYS_LIT 16
//#define EM_POLY_DOUBLE 32
#define EM_POLY_TRANS 64
//#define EM_POLY_CCW_VIEW 128
using namespace std;
#include <vector>
#include "EMath.h"
class Shape3D;
/**
* Polygons are part of Shape3Ds. Polygons are built by first creating
* a Polygon object and then adding the vertices which define the polygon.
*
* Look out i can be a bit confusing to handle two types of indices. Will
* call the vertex index in the shape for shindex and the index for the edge in the
* polygon for polyindex. A polyindex edge always has a connection to one shindex vertex.
* A shindex vertex may be refered by several polygons ie. polyindex edges.
* @see Shape3D
*/
class Polygon3D {
public:
Polygon3D(Shape3D* s, int size = 3);
~Polygon3D();
void copy(Polygon3D * poly);
/** Add add a shape vertex into this polygon- */
void add(int shindex);
/** Returns the polyindex if the vertex is included. Else -1. */
int includes(int shindex);
void setProperty(int p);
void unsetProperty(int p);
int getProperties();
/** Get shape vertex index for edge in polygon. */
int getIndex(int polyindex);
int getIndexSize();
void setColor(float r, float g, float b, float a);
Color * getColor(int polyindex);
void setColor(int polyindex, float r, float g, float b, float a);
TexCoord * getTexCoord(int polyindex);
void setTexCoord(int polyindex, float u, float v);
Shape3D * getShape3D() { return p_Shape3D; };
void countNormal();
void decrement(int shindex);
/** Move vertex at index one step up in polygon order. */
void moveUp(int polyindex);
void moveDown(int polyindex);
/** Are the vertices follow each other in this polygon. */
bool connected(int shindexA, int shindexB);
/* private:
friend class Shape3D;
friend class RendererVisitor;
friend class PNormalVisitor;
friend class PointLightVisitor;
friend class NCollisionVisitor;
friend class GLightVisitor;
friend class NestedBounds;
friend class ClipperVisitor;
friend class PaintersSorter;
friend class OpenGLVisitor;*/
Vertex3D m_nmlSrc;
Vertex3D m_nmlTrans;
Color m_colFlatLight;
vector<int> m_vIndex;
int m_iProperties;
Shape3D* p_Shape3D;
};
#endif // POLYGON_H
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