/****************************************************************************
*                   express.h
*
*  This module contains all defines, typedefs, and prototypes for EXPRESS.C.
*
*  from Persistence of Vision(tm) Ray Tracer
*  Copright 1995,1999 Persistence of Vision Team
*---------------------------------------------------------------------------
*  NOTICE: This source code file is provided so that users may experiment
*  with enhancements to POV-Ray and to port the software to platforms other
*  than those supported by the POV-Ray Team.  There are strict rules under
*  which you are permitted to use this file.  The rules are in the file
*  named POVLEGAL.DOC which should be distributed with this file.
*  If POVLEGAL.DOC is not available or for more info please contact the POV-Ray
*  Team Coordinator by email to team-coord@povray.org or visit us on the web at
*  http://www.povray.org. The latest version of POV-Ray may be found at this site.
*
* This program is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
*
*****************************************************************************/


#ifndef EXPRESS_H
#define EXPRESS_H



/*****************************************************************************
* Global preprocessor defines
******************************************************************************/




/*****************************************************************************
* Global typedefs
******************************************************************************/




/*****************************************************************************
* Global variables
******************************************************************************/
extern short Have_Vector;



/*****************************************************************************
* Global functions
******************************************************************************/

void Parse_Colour (COLOUR Colour);
BLEND_MAP *Parse_Blend_Map (int Blend_Type, int Pat_Type);
BLEND_MAP *Parse_Colour_Map (void);
BLEND_MAP *Parse_Blend_List (int Count, BLEND_MAP *Def_Map, int Blend_Type);
DBL Parse_Raw_Number (void);
DBL Parse_Float (void);
DBL Allow_Float (DBL defval);
void Parse_UV_Vect (UV_VECT UV_Vect);
void Parse_Vector (VECTOR Vector);
void Parse_Vector4D (VECTOR Vector);
int Parse_Unknown_Vector (EXPRESS Express);
void Parse_Scale_Vector (VECTOR Vector);
DBL Parse_Float_Param (void);
void Parse_Float_Param2 (DBL *Val1, DBL *Val2);
char *Parse_String (void);
char *Parse_Formatted_String (void);
void Init_Random_Generators (void);
void Destroy_Random_Generators (void);
DBL Parse_Signed_Float(void);

#endif