/*
 *        wstructs.h
 *        Wad files data structures.
 *        BW & RQ sometime in 1993 or 1994.
 *        FIXME this file should also contain the definitions for
 *        the wad header and directory entry which are currently
 *        in yadex.h.
 */


/*
This file is part of Yadex.

Yadex incorporates code from DEU 5.21 that was put in the public domain in
1994 by Raphaël Quinet and Brendon Wyber.

The rest of Yadex is Copyright © 1997-2003 André Majorel and others.

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.

You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307, USA.
*/


#ifndef YH_WSTRUCTS                // To prevent multiple inclusion
#define YH_WSTRUCTS                // To prevent multiple inclusion


// FIXME: all identifiers should start with wad_ or WAD_...


// Directory
const size_t WAD_NAME = 8;        // Length of a directory entry name
typedef char wad_name_t[WAD_NAME];
typedef struct Directory *DirPtr;
struct Directory
{
    int32_t start;                        // Offset to start of data
    int32_t size;                        // Byte size of data
    wad_name_t name;                // Name of data block
};


// Textures
const size_t WAD_TEX_NAME = 8;
typedef char wad_tex_name_t[WAD_TEX_NAME];


// Flats
const size_t WAD_FLAT_NAME = WAD_NAME;
typedef char wad_flat_name_t[WAD_FLAT_NAME];


// Pictures (sprites and patches)
const size_t WAD_PIC_NAME = WAD_NAME;
typedef char wad_pic_name_t[WAD_TEX_NAME];


// Level objects properties
typedef int16_t wad_coord_t;        // Map (X,Y) coordinates
typedef int16_t wad_ldn_t;                // Linedef#
typedef int16_t wad_sdn_t;                // Sidedef#
typedef int16_t wad_sn_t;                // Sector#
typedef int16_t wad_tag_t;                // Tag
typedef int16_t wad_tn_t;                // Thing# (theor. there might be more)
typedef int16_t wad_vn_t;                // Vertex#
typedef int16_t wad_z_t;                // Map Z coordinate


// Things
const size_t WAD_THING_BYTES = 10;        // Size in the wad file
const size_t WAD_HEXEN_THING_BYTES = 20;        // Size in the wad file
typedef int16_t wad_ttype_t;
typedef int16_t wad_tangle_t;
typedef int16_t wad_tflags_t;
struct Thing
{
    wad_coord_t xpos;                // FIXME rename to "x"
    wad_coord_t ypos;                // FIXME rename to "y"
    wad_tangle_t angle;
    wad_ttype_t type;
    wad_tflags_t when;                // FIXME rename to "flags"
};
typedef struct
{
    int16_t tid;
    wad_coord_t x;
    wad_coord_t y;
    wad_z_t height;
    wad_tangle_t angle;
    wad_ttype_t type;
    int16_t options;
    uint8_t special;
    uint8_t arg1;
    uint8_t arg2;
    uint8_t arg3;
    uint8_t arg4;
    uint8_t arg5;
} wad_hexen_thing_t;
typedef struct Thing *TPtr;


// Linedefs
const size_t WAD_LINEDEF_BYTES = 14;        // Size in the wad file
const size_t WAD_HEXEN_LINEDEF_BYTES = 16;        // Size in the wad file
typedef int16_t wad_ldflags_t;
typedef int16_t wad_ldtype_t;
struct LineDef
{
    wad_vn_t start;                // # of start vertex
    wad_vn_t end;                // # of end vertex
    wad_ldflags_t flags;
    wad_ldtype_t type;
    wad_tag_t tag;
    wad_sdn_t sidedef1;                // # of first (right) sidedef
    wad_sdn_t sidedef2;                // # of second (left) sidedef or 0xffff
};
typedef struct
{
    wad_vn_t start;
    wad_vn_t end;
    wad_ldflags_t flags;
    uint8_t type;
    uint8_t arg1;
    uint8_t arg2;
    uint8_t arg3;
    uint8_t arg4;
    uint8_t arg5;
    wad_sdn_t sidedef1;
    wad_sdn_t sidedef2;
} wad_hexen_linedef_t;
typedef struct LineDef *LDPtr;


// Sidedefs
const size_t WAD_SIDEDEF_BYTES = 30;        // Size in the wad file
struct SideDef
{
    wad_coord_t xoff;                // FIXME rename to "xofs"
    wad_coord_t yoff;                // FIXME rename to "yofs"
    wad_tex_name_t tex1;        // Name of upper texture
    wad_tex_name_t tex2;        // Name of lower texture
    wad_tex_name_t tex3;        // Name of middle texture
    wad_sn_t sector;                // # of adjacent sector
};
// (it's the same for Hexen)
typedef struct SideDef *SDPtr;


// Vertices
const size_t WAD_VERTEX_BYTES = 4;        // Size in the wad file
struct Vertex
{
    wad_coord_t x;
    wad_coord_t y;
};
// (it's the same for Hexen)
typedef struct Vertex *VPtr;


// Sectors
const size_t WAD_SECTOR_BYTES = 26;        // Size in the wad file
typedef int16_t wad_stype_t;
struct Sector
{
    wad_z_t floorh;                // Floor height
    wad_z_t ceilh;                // Ceiling height
    wad_flat_name_t floort;        // Name of floor texture
    wad_flat_name_t ceilt;        // Name of ceiling texture
    int16_t light;                        // Light level (0-255)
    wad_stype_t special;        // FIXME rename to "type"
    wad_tag_t tag;
};
typedef struct Sector *SPtr;


// The 11 lumps that constitute a Doom/Heretic/Strife level
typedef enum
{
    WAD_LL_LABEL,
    WAD_LL_THINGS,
    WAD_LL_LINEDEFS,
    WAD_LL_SIDEDEFS,
    WAD_LL_VERTEXES,
    WAD_LL_SEGS,
    WAD_LL_SSECTORS,
    WAD_LL_NODES,
    WAD_LL_SECTORS,
    WAD_LL_REJECT,
    WAD_LL_BLOCKMAP,
    // Hexen has a BEHAVIOR lump here
    WAD_LL__
} wad_level_lump_no_t;

typedef struct
{
    const char *const name;
    size_t item_size;
} wad_level_lump_def_t;

const wad_level_lump_def_t wad_level_lump[WAD_LL__] = {
    { NULL,          0 },  // Label -- no fixed name
    { "THINGS",      WAD_THING_BYTES },
    { "LINEDEFS",    WAD_LINEDEF_BYTES },
    { "SIDEDEFS",    WAD_SIDEDEF_BYTES },
    { "VERTEXES",    WAD_VERTEX_BYTES },
    { "SEGS",        0 },
    { "SSECTORS",    0 },
    { "NODES",       0 },
    { "SECTORS",     WAD_SECTOR_BYTES },
    { "REJECT",      0 },
    { "BLOCKMAP",    0 }
    // Hexen has a BEHAVIOR lump here
};


#endif /* DO NOT ADD ANYTHING AFTER THIS LINE */