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+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005 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.
+//
+// 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.
+//
+// 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__