DOOMDATA.H

//  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;
} 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;
} 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];             
} 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;
} mapsector_t;

// SubSector, as generated by BSP.
typedef struct
{
  short         numsegs;
  // Index of first one, segs are stored sequentially.
  short         firstseg;       
} 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;
} 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];

} 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;
} mapthing_t;


extern char *Color_Names[MAXSKINCOLORS];


#endif                  // __DOOMDATA__
//-----------------------------------------------------------------------------
//
// $Log:$
//
//-----------------------------------------------------------------------------