SURFACE.H

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/****************************************************************************************/
/*  Surface.h                                                                           */
/*                                                                                      */
/*  Author: John Pollard                                                                */
/*  Description: Creates the surfaces for a BSP from the GFX data                       */
/*                                                                                      */
/*  The contents of this file are subject to the Genesis3D Public License               */
/*  Version 1.01 (the "License"); you may not use this file except in                   */
/*  compliance with the License. You may obtain a copy of the License at                */
/*  http://www.genesis3d.com                                                            */
/*                                                                                      */
/*  Software distributed under the License is distributed on an "AS IS"                 */
/*  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See                */
/*  the License for the specific language governing rights and limitations              */
/*  under the License.                                                                  */
/*                                                                                      */
/*  The Original Code is Genesis3D, released March 25, 1999.                            */
/*  Genesis3D Version 1.1 released November 15, 1999                                 */
/*  Copyright (C) 1999 WildTangent, Inc. All Rights Reserved           */
/*                                                                                      */
/****************************************************************************************/
#ifndef GE_SURFACE_H
#define GE_SURFACE_H

#include <Assert.h>
#include <Windows.h>

#include "BaseType.h"
#include "PtrTypes.h"
#include "Vec3d.h"
#include "DCommon.h"

#ifdef __cplusplus
extern "C" {
#endif

//================================================================================
//      Structure defines
//================================================================================

// Surface info carries extra info about a face thats not in GFX_Face (File format face)
typedef struct Surf_SurfInfo
{
        DRV_LInfo       LInfo;                                                  // For RDriver use only...

        geVec3d         T2WVecs[2];
        geVec3d         TexOrg;

        geVec3d         VMins;
        geVec3d         VMaxs;
        
        int32           VisFrame;
        
        int32           TexInfo;
        
        int32           XStep;                                                  // Lightmap step values (1:21:10 fixed)
        int32           YStep;
        int32           XScale;
        int32           YScale;

        geFloat         ShiftU;
        geFloat         ShiftV;
        
        int32           NumLTypes;                                              // Number of lightmap types this face has...
        int32           DLightFrame;                                    // == Globals->CurFrame if dlighted
        uint32          DLights;                                                // Bit set for each DLight
        uint32          Flags;                                                  // Surface Flags (NOTE - This is not the flags from the utilities)

} Surf_SurfInfo;

typedef struct Surf_TexVert
{
        geFloat         u, v;
        geFloat         r, g, b, a;
} Surf_TexVert;

// Lit vertex
typedef struct
{
        geFloat X, Y, Z;                                                                        // 3d vertex
        geFloat u, v;                                                                           // Uv's
        geFloat r, g, b, a;                                                             // color
} Surf_LVertex;

// Transformed Lit vertex
typedef struct
{
        geFloat x, y, z;                                                                        // screen points
        geFloat u, v;                                                                           // Uv's
        geFloat r, g, b, a;                                                             // color
} Surf_TLVertex;

//      Surface Flags
#define         SURFINFO_TRANS                          (1<<0)          // Surface is transparent
#define         SURFINFO_LTYPED                         (1<<1)          // This surface has more than one ltype
#define         SURFINFO_LIGHTMAP                       (1<<2)          // This surface has a lightmap
#define         SURFINFO_WAVY                           (1<<3)          // This surface is a wavy surface

//================================================================================
//      Function defines
//================================================================================
geBoolean Surf_EngineInit(geEngine *Engine);
void Surf_EngineShutdown(geEngine *Engine);
geBoolean Surf_SetEngine(geEngine *Engine);
geBoolean Surf_SetWorld(geWorld *World);
geBoolean Surf_SetGBSP(World_BSP *BSP);
geBoolean Surf_WorldInit(geWorld *World);
void Surf_WorldShutdown(geWorld *World);

BOOL Surf_InSurfBoundingBox(Surf_SurfInfo *Surf, geVec3d *Pos, geFloat Box);

#ifdef __cplusplus
}
#endif

#endif

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