ref: ee35eec9bac04ce55e5fe1ae1eeb5428b47d91a8
dir: /src/rt_draw.h/
/*
Copyright (C) 1994-1995 Apogee Software, Ltd.
Copyright (C) 2002-2015 icculus.org, GNU/Linux port
Copyright (C) 2017-2018 Steven LeVesque
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef _rt_draw_public
#define _rt_draw_public
//***************************************************************************
//
// RT_DRAW.C - Draw-o-rama
//
//***************************************************************************
#define MAXVISIBLE 256
extern int whereami;
extern byte * shadingtable; // Shading table for DrawPost
typedef struct
{
int viewheight;
int viewx;
int shapenum;
int altshapenum;
int shapesize;
int x1,x2,h1,h2;
int texturestart;
int textureend;
byte * colormap;
} visobj_t;
extern word tilemap[MAPSIZE][MAPSIZE]; // wall values only
extern byte spotvis[MAPSIZE][MAPSIZE];
extern int tics;
extern int wstart;
extern int fandc;
//
// math tables
//
extern short tantable[FINEANGLES];
extern fixed sintable[FINEANGLES+FINEANGLEQUAD+1];
extern fixed *costable;
//
// refresh variables
//
extern fixed viewx,viewy; // the focal point
extern int viewangle;
extern fixed viewsin,viewcos;
//
// ray tracing variables
//
extern visobj_t vislist[MAXVISIBLE];
extern visobj_t *visptr,*visstep,*farthest;
extern long xintercept,yintercept;
extern byte mapseen[MAPSIZE][MAPSIZE];
extern unsigned long * lights;
extern int hp_startfrac;
extern int hp_srcstep;
extern int levelheight;
extern int maxheight;
extern int nominalheight;
extern int actortime;
extern int drawtime;
extern int c_startx;
extern int c_starty;
extern const int dirangle8[9];
extern const int dirangle16[16];
extern int firstcoloffset;
//=========================== macros =============================
#define LightSourceAt(x,y) (*(lights+((x)<<7)+(y)))
#define SetLight(x,y,level) (LightSourceAt((x),(y))|=(unsigned long)(level))
//=========================== functions =============================
void BuildTables (void);
void CalcTics (void);
void ThreeDRefresh (void);
void FlipPage ( void );
void TurnShakeOff( void );
void AdaptDetail ( void );
int CalcHeight (void);
void DoLoadGameSequence( void );
void RotateBuffer (int startangle, int endangle, int startscale, int endscale, int time);
void RotateScreenScaleFloat(float startAngle, float endAngle, float startScale, float endScale, int time, boolean fadeOut, boolean drawPlayScreen);
void ApogeeTitle (void);
void DopefishTitle (void);
void RotationFun (void);
void GetRainBoundingBox (int * xmin, int * xmax, int * ymin, int * ymax);
void StartupScreenSaver ( void );
void ShutdownScreenSaver ( void );
void UpdateScreenSaver ( void );
void DoEndCinematic ( void );
void DoCreditScreen ( void );
void DoMicroStoryScreen ( void );
void DoInBetweenCinematic (int yoffset, int lump, int delay, char * string );
#endif