//----------------------------------------------------------------------------
// File: C3DIndices.h 
// Class: C3DIndices [v4]-- Common 3D Vertices Class
// Type: 3D Object
// Author: Ken Anderson
// Date: 3/16/04
// OS dependant: NA
// Desc: A class designated to manage both a block of indicies and its
//		 corresponding vertices.
// Versions: 
// 1.0[1/9/06] -- Class created.
// Notes: 
// Required headers: <Headers that are required in numerical order and why>
//	1) C3DTypes.h -- Contains structures, error codes, & enumations the class
//                   relies on.
//  2) Banks3d.h -- Contains a list of renderbanks used by the common & renderer system.
//  3) CRSGlobal.h -- Contains the global CRS Manager.  There is only one CRS Manager
//					  per system.
//  4) C3DVertices.h -- Contains the vertices class responsible for managing a
//						block of vertices.
//----------------------------------------------------------------------------

#ifndef __C3DINDICES__
#define __C3DINDICES__

#include "C3DTypes.h"
#include "C3DVertices.h"
#include "Banks3D.h"
#include "CRSGlobal.h"

class C3DIndices
{
private:
	PSC3DIndices	m_pIndices;		//A pointer to the index pipeline.
	Dword			m_dwCurrIdx;	//The current index being loaded.
	Dword			m_dwVertNum;	//Number of vertices for quick access.
	HRBE			m_hCallback;	//A handle to BEI (Bank Element Indices) for updating.
	
public:

	//Constructor & Destructor.
	C3DIndices();
	C3DIndices(const C3DIndices& indices);
	~C3DIndices();

	//Creation/Deletion Functions.
	C3DERR Create(Dword dwNumIndx, C3DVertices* pVerts);
	void Clear();
	C3DERR SetVertices(C3DVertices* pVerts);

	C3DERR Render(Byte byStage, Dword dwStartPoint, Dword dwNumVertices, C3DPrimitiveType PrimType);
	C3DERR Render(Byte byStage);
	C3DERR Render();

	//Primitive Settings.
	C3DERR SetPrimitiveType(C3DPrimitiveType PrimType);
	C3DPrimitiveType GetPrimitiveType();

	//Performance Modifiers.
	void Hold();
	void ReleaseHold();

	C3DERR Index(Dword dwVertex);
	C3DERR Index(Dword dwIndex, Dword dwVertex);

	//Get current vertex or vertex at index.
	Dword ReturnIndicesAmount();
	Dword GetIndex();
	Dword GetIndex(Dword dwIndex);

private:
	void Cleanup();
	C3DERR UpdateIndexBank(PSC3DIndices pI, C3DVertices* pVerts, TRBE trbe);
};

#endif