doomdata.h

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//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 2005-2014 Simon Howard
//
// 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.  See the
// GNU General Public License for more details.
//
// DESCRIPTION:
//  all external data is defined here
//  most of the data is loaded into different structures at run time
//  some internal structures shared by many modules are here
//
 
#ifndef __DOOMDATA__
#define __DOOMDATA__
 
// The most basic types we use, portability.
#include "doomtype.h"
 
// Some global defines, that configure the game.
#include "doomdef.h"
 
 
 
//
// Map level types.
// The following data structures define the persistent format
// used in the lumps of the WAD files.
//
 
// Lump order in a map WAD: each map needs a couple of lumps
// to provide a complete scene geometry description.
enum
{
  ML_LABEL,     // A separator, name, ExMx or MAPxx
  ML_THINGS,        // Monsters, items..
  ML_LINEDEFS,      // LineDefs, from editing
  ML_SIDEDEFS,      // SideDefs, from editing
  ML_VERTEXES,      // Vertices, edited and BSP splits generated
  ML_SEGS,      // LineSegs, from LineDefs split by BSP
  ML_SSECTORS,      // SubSectors, list of LineSegs
  ML_NODES,     // BSP nodes
  ML_SECTORS,       // Sectors, from editing
  ML_REJECT,        // LUT, sector-sector visibility    
  ML_BLOCKMAP       // LUT, motion clipping, walls/grid element
};
 
 
// A single Vertex.
typedef struct
{
  short     x;
  short     y;
} PACKEDATTR mapvertex_t;
 
 
// A SideDef, defining the visual appearance of a wall,
// by setting textures and offsets.
typedef struct
{
  short     textureoffset;
  short     rowoffset;
  char      toptexture[8];
  char      bottomtexture[8];
  char      midtexture[8];
  // Front sector, towards viewer.
  short     sector;
} PACKEDATTR mapsidedef_t;
 
 
 
// A LineDef, as used for editing, and as input
// to the BSP builder.
typedef struct
{
  short     v1;
  short     v2;
  short     flags;
  short     special;
  short     tag;
  // sidenum[1] will be -1 if one sided
  short     sidenum[2];     
} PACKEDATTR maplinedef_t;
 
 
//
// LineDef attributes.
//
 
// Solid, is an obstacle.
#define ML_BLOCKING     1
 
// Blocks monsters only.
#define ML_BLOCKMONSTERS    2
 
// Backside will not be present at all
//  if not two sided.
#define ML_TWOSIDED     4
 
// If a texture is pegged, the texture will have
// the end exposed to air held constant at the
// top or bottom of the texture (stairs or pulled
// down things) and will move with a height change
// of one of the neighbor sectors.
// Unpegged textures allways have the first row of
// the texture at the top pixel of the line for both
// top and bottom textures (use next to windows).
 
// upper texture unpegged
#define ML_DONTPEGTOP       8
 
// lower texture unpegged
#define ML_DONTPEGBOTTOM    16  
 
// In AutoMap: don't map as two sided: IT'S A SECRET!
#define ML_SECRET       32
 
// Sound rendering: don't let sound cross two of these.
#define ML_SOUNDBLOCK       64
 
// Don't draw on the automap at all.
#define ML_DONTDRAW     128
 
// Set if already seen, thus drawn in automap.
#define ML_MAPPED       256
 
 
 
 
// Sector definition, from editing.
typedef struct
{
  short     floorheight;
  short     ceilingheight;
  char      floorpic[8];
  char      ceilingpic[8];
  short     lightlevel;
  short     special;
  short     tag;
} PACKEDATTR mapsector_t;
 
// SubSector, as generated by BSP.
typedef struct
{
  short     numsegs;
  // Index of first one, segs are stored sequentially.
  short     firstseg;   
} PACKEDATTR mapsubsector_t;
 
 
// LineSeg, generated by splitting LineDefs
// using partition lines selected by BSP builder.
typedef struct
{
  short     v1;
  short     v2;
  short     angle;      
  short     linedef;
  short     side;
  short     offset;
} PACKEDATTR mapseg_t;
 
 
 
// BSP node structure.
 
// Indicate a leaf.
#define NF_SUBSECTOR    0x8000
 
typedef struct
{
  // Partition line from (x,y) to x+dx,y+dy)
  short     x;
  short     y;
  short     dx;
  short     dy;
 
  // Bounding box for each child,
  // clip against view frustum.
  short     bbox[2][4];
 
  // If NF_SUBSECTOR its a subsector,
  // else it's a node of another subtree.
  unsigned short    children[2];
 
} PACKEDATTR mapnode_t;
 
 
 
 
// Thing definition, position, orientation and type,
// plus skill/visibility flags and attributes.
typedef struct
{
    short       x;
    short       y;
    short       angle;
    short       type;
    short       options;
} PACKEDATTR mapthing_t;
 
 
 
 
 
#endif          // __DOOMDATA__