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code/bspc/l_bsp_q1.h
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275
code/bspc/l_bsp_q1.h
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/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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// upper design bounds
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#define Q1_MAX_MAP_HULLS 4
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#define Q1_MAX_MAP_MODELS 256
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#define Q1_MAX_MAP_BRUSHES 4096
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#define Q1_MAX_MAP_ENTITIES 1024
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#define Q1_MAX_MAP_ENTSTRING 65536
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#define Q1_MAX_MAP_PLANES 8192
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#define Q1_MAX_MAP_NODES 32767 // because negative shorts are contents
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#define Q1_MAX_MAP_CLIPNODES 32767 //
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#define Q1_MAX_MAP_LEAFS 32767 //
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#define Q1_MAX_MAP_VERTS 65535
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#define Q1_MAX_MAP_FACES 65535
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#define Q1_MAX_MAP_MARKSURFACES 65535
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#define Q1_MAX_MAP_TEXINFO 4096
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#define Q1_MAX_MAP_EDGES 256000
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#define Q1_MAX_MAP_SURFEDGES 512000
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#define Q1_MAX_MAP_MIPTEX 0x200000
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#define Q1_MAX_MAP_LIGHTING 0x100000
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#define Q1_MAX_MAP_VISIBILITY 0x100000
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// key / value pair sizes
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#define MAX_KEY 32
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#define MAX_VALUE 1024
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//=============================================================================
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#define Q1_BSPVERSION 29
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typedef struct
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{
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int fileofs, filelen;
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} q1_lump_t;
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#define Q1_LUMP_ENTITIES 0
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#define Q1_LUMP_PLANES 1
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#define Q1_LUMP_TEXTURES 2
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#define Q1_LUMP_VERTEXES 3
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#define Q1_LUMP_VISIBILITY 4
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#define Q1_LUMP_NODES 5
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#define Q1_LUMP_TEXINFO 6
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#define Q1_LUMP_FACES 7
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#define Q1_LUMP_LIGHTING 8
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#define Q1_LUMP_CLIPNODES 9
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#define Q1_LUMP_LEAFS 10
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#define Q1_LUMP_MARKSURFACES 11
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#define Q1_LUMP_EDGES 12
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#define Q1_LUMP_SURFEDGES 13
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#define Q1_LUMP_MODELS 14
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#define Q1_HEADER_LUMPS 15
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typedef struct
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{
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float mins[3], maxs[3];
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float origin[3];
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int headnode[Q1_MAX_MAP_HULLS];
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int visleafs; // not including the solid leaf 0
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int firstface, numfaces;
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} q1_dmodel_t;
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typedef struct
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{
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int version;
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q1_lump_t lumps[Q1_HEADER_LUMPS];
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} q1_dheader_t;
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typedef struct
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{
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int nummiptex;
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int dataofs[4]; // [nummiptex]
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} q1_dmiptexlump_t;
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#define MIPLEVELS 4
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typedef struct q1_miptex_s
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{
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char name[16];
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unsigned width, height;
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unsigned offsets[MIPLEVELS]; // four mip maps stored
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} q1_miptex_t;
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typedef struct
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{
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float point[3];
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} q1_dvertex_t;
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// 0-2 are axial planes
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#define PLANE_X 0
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#define PLANE_Y 1
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#define PLANE_Z 2
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// 3-5 are non-axial planes snapped to the nearest
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#define PLANE_ANYX 3
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#define PLANE_ANYY 4
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#define PLANE_ANYZ 5
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typedef struct
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{
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float normal[3];
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float dist;
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int type; // PLANE_X - PLANE_ANYZ ?remove? trivial to regenerate
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} q1_dplane_t;
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#define Q1_CONTENTS_EMPTY -1
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#define Q1_CONTENTS_SOLID -2
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#define Q1_CONTENTS_WATER -3
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#define Q1_CONTENTS_SLIME -4
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#define Q1_CONTENTS_LAVA -5
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#define Q1_CONTENTS_SKY -6
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// !!! if this is changed, it must be changed in asm_i386.h too !!!
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typedef struct
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{
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int planenum;
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short children[2]; // negative numbers are -(leafs+1), not nodes
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short mins[3]; // for sphere culling
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short maxs[3];
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unsigned short firstface;
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unsigned short numfaces; // counting both sides
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} q1_dnode_t;
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typedef struct
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{
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int planenum;
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short children[2]; // negative numbers are contents
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} q1_dclipnode_t;
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typedef struct q1_texinfo_s
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{
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float vecs[2][4]; // [s/t][xyz offset]
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int miptex;
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int flags;
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} q1_texinfo_t;
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#define TEX_SPECIAL 1 // sky or slime, no lightmap or 256 subdivision
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// note that edge 0 is never used, because negative edge nums are used for
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// counterclockwise use of the edge in a face
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typedef struct
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{
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unsigned short v[2]; // vertex numbers
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} q1_dedge_t;
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#define MAXLIGHTMAPS 4
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typedef struct
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{
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short planenum;
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short side;
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int firstedge; // we must support > 64k edges
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short numedges;
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short texinfo;
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// lighting info
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byte styles[MAXLIGHTMAPS];
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int lightofs; // start of [numstyles*surfsize] samples
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} q1_dface_t;
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#define AMBIENT_WATER 0
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#define AMBIENT_SKY 1
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#define AMBIENT_SLIME 2
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#define AMBIENT_LAVA 3
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#define NUM_AMBIENTS 4 // automatic ambient sounds
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// leaf 0 is the generic Q1_CONTENTS_SOLID leaf, used for all solid areas
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// all other leafs need visibility info
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typedef struct
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{
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int contents;
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int visofs; // -1 = no visibility info
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short mins[3]; // for frustum culling
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short maxs[3];
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unsigned short firstmarksurface;
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unsigned short nummarksurfaces;
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byte ambient_level[NUM_AMBIENTS];
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} q1_dleaf_t;
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//============================================================================
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#ifndef QUAKE_GAME
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// the utilities get to be lazy and just use large static arrays
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extern int q1_nummodels;
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extern q1_dmodel_t *q1_dmodels;//[MAX_MAP_MODELS];
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extern int q1_visdatasize;
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extern byte *q1_dvisdata;//[MAX_MAP_VISIBILITY];
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extern int q1_lightdatasize;
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extern byte *q1_dlightdata;//[MAX_MAP_LIGHTING];
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extern int q1_texdatasize;
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extern byte *q1_dtexdata;//[MAX_MAP_MIPTEX]; // (dmiptexlump_t)
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extern int q1_entdatasize;
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extern char *q1_dentdata;//[MAX_MAP_ENTSTRING];
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extern int q1_numleafs;
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extern q1_dleaf_t *q1_dleafs;//[MAX_MAP_LEAFS];
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extern int q1_numplanes;
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extern q1_dplane_t *q1_dplanes;//[MAX_MAP_PLANES];
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extern int q1_numvertexes;
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extern q1_dvertex_t *q1_dvertexes;//[MAX_MAP_VERTS];
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extern int q1_numnodes;
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extern q1_dnode_t *q1_dnodes;//[MAX_MAP_NODES];
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extern int q1_numtexinfo;
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extern q1_texinfo_t *q1_texinfo;//[MAX_MAP_TEXINFO];
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extern int q1_numfaces;
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extern q1_dface_t *q1_dfaces;//[MAX_MAP_FACES];
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extern int q1_numclipnodes;
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extern q1_dclipnode_t *q1_dclipnodes;//[MAX_MAP_CLIPNODES];
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extern int q1_numedges;
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extern q1_dedge_t *q1_dedges;//[MAX_MAP_EDGES];
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extern int q1_nummarksurfaces;
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extern unsigned short *q1_dmarksurfaces;//[MAX_MAP_MARKSURFACES];
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extern int q1_numsurfedges;
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extern int *q1_dsurfedges;//[MAX_MAP_SURFEDGES];
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void Q1_AllocMaxBSP(void);
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void Q1_FreeMaxBSP(void);
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void Q1_LoadBSPFile(char *filename, int offset, int length);
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void Q1_WriteBSPFile(char *filename);
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void Q1_PrintBSPFileSizes(void);
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void Q1_ParseEntities(void);
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void Q1_UnparseEntities(void);
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#endif
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