/*
============================================================================
    * Name : C3DRenderer.h
    * Part of : Example3D
    * Description : Definition of C3DRenderer
    * Copyright (c) 2007 Nokia Corporation
============================================================================
    */

#ifndef __C3DRENDERER__H__
#define __C3DRENDERER__H__


// INCLUDES
#include <e32base.h>
#include "C3DBase.h"
#include "TBitmap.h"
   
// FORWARD DECLARATIONS
class M3dObject;


// CLASS DECLARATION

/**
*  C3DRenderer contains a list of M3DObject objects
*  This class selects which objects to draw, where and in which order
*  Every object to draw has to be added here with AddObject
*  Every object position and angle change should be done via this class
*/

class C3DRenderer : public CBase
    {
    public:

        /// Two-phased constructor
        /// @param a3DBase pointer to C3DBase class
        /// @param aMaxObjects maximum number of objects to add
        static C3DRenderer* NewL( C3DBase* a3DBase, TInt aMaxObjects );

        /// Destructor
        ~C3DRenderer();

    private:

        /// Second-phase constructor
        void ConstructL();

        /// Default constructor
        C3DRenderer( C3DBase* a3DBase, TInt aMaxObjects );

    public: // New methods

        /// Add a M3DObject to drawlist
        /// @param aObject object to add to drawlist
        /// return added object's index
        TInt AddObject( M3dObject* aObject );

        /// Remove a M3DObject from drawlist
        /// @param aIndex index from to remove
        void RemoveObject( TInt aIndex );

        /// Set object's position in 3D-space
        /// @param aIndex object's index
        /// @param aPosition new position for object
        void SetObjectPosition( TInt aIndex, const TVertex& aPosition );

        /// Set object's angle in 3D-space
        /// @param aIndex object's index
        /// @param aAngle object's new angle
        void SetObjectAngle( TInt aIndex, const TVertex& aAngle );

        /// Set object's "priority" in 3D-space
        /// if you want some object to stay back
        /// put here very big numbers
        /// @param aIndex object's index
        /// @param aPriority new priority for object
        void SetObjectPriority( TInt aIndex, TInt aPriority );

        /// Set camera's place in 3D-space
        /// @param aPosition new position for camera
        void SetCameraPosition( const TVertex& aPosition );

        /// Set camera's angle in 3D-space
        /// @param aAngle new angle for camera
        void SetCameraAngle( const TVertex& aAngle );

        /// Draw everything in drawlist
        /// @param aScreen bitmap to draw everything
        void Draw( const TBitmap& aScreen );


    private: // Data

        C3DBase*    i3DBase;

        TInt        iMaxObjects;        // maximum number of objects in drawlist
        M3dObject** iObject;            // the drawlist
        TVertex*    iObjectPosition;    // list of object positions
        TMatrix*    iObjectMatrix;      // list of object rotate matrices
        TMatrix*    iObjectRotMatrix;   // list of object rotate matrices turned by camera
        TInt*       iObjectPriority;    // list of object priorities

        TInt*       iObjectZ;           // list of object distances from view plane
        TInt*       iObjectN;           // object sort order

        TVertex     iCameraPosition;    // camera position in 3D-space
        TVertex     iCameraAngle;       // camera angle in 3D-space
        
        TInt16*     iCos;               // pointer to cosine table
        TInt16*     iSin;               // pointer to sinus table



    };

#endif