// upper design bounds

#define	max_map_hulls		4

#define	max_map_models		256
#define	max_map_brushes		4096
#define	max_map_entities	1024
//#define  max_map_entstring 65536
#define  max_map_entstring 131072

#define	max_map_planes		8192
#define	max_map_nodes		32767		// because negative shorts are contents
#define	max_map_clipnodes	32767		//
#define	max_map_leafs		32767		//
#define	max_map_verts		65535
#define	max_map_faces		65535
#define	max_map_marksurfaces 65535
#define	max_map_texinfo		4096
#define	max_map_edges		256000
#define	max_map_surfedges	512000
#define	max_map_miptex		0x200000
#define	max_map_lighting	0x100000
#define	max_map_visibility	0x100000

// key / value pair sizes

#define	max_key		32
#define	max_value	1024

//=============================================================================


#define bspversion	29

typedef struct
{
	int		fileofs, filelen;
} lump_t;

#define	lump_entities	0
#define	lump_planes		1
#define	lump_textures	2
#define	lump_vertexes	3
#define	lump_visibility	4
#define	lump_nodes		5
#define	lump_texinfo	6
#define	lump_faces		7
#define	lump_lighting	8
#define	lump_clipnodes	9
#define	lump_leafs		10
#define	lump_marksurfaces 11
#define	lump_edges		12
#define	lump_surfedges	13
#define	lump_models		14

#define	header_lumps	15

typedef struct
{
	float		mins[3], maxs[3];
	float		origin[3];
	int			headnode[max_map_hulls];
	int			visleafs;		// not including the solid leaf 0
	int			firstface, numfaces;
} dmodel_t;

typedef struct
{
	int			version;	
	lump_t		lumps[header_lumps];
} dheader_t;

typedef struct
{
	int			nummiptex;
	int			dataofs[4];		// [nummiptex]
} dmiptexlump_t;

#define	miplevels	4
typedef struct miptex_s
{
	char		name[16];
	unsigned	width, height;
	unsigned	offsets[miplevels];		// four mip maps stored
} miptex_t;


typedef struct
{
	float	point[3];
} dvertex_t;


// 0-2 are axial planes
#define	plane_x			0
#define	plane_y			1
#define	plane_z			2

// 3-5 are non-axial planes snapped to the nearest
#define	plane_anyx		3
#define	plane_anyy		4
#define	plane_anyz		5

typedef struct
{
	float	normal[3];
	float	dist;
	int		type;		// plane_x - plane_anyz ?remove? trivial to regenerate
} dplane_t;



#define	contents_empty		-1
#define	contents_solid		-2
#define	contents_water		-3
#define	contents_slime		-4
#define	contents_lava		-5
#define	contents_sky		-6

// !!! if this is changed, it must be changed in asm_i386.h too !!!
typedef struct
{
	int			planenum;
	short		children[2];	// negative numbers are -(leafs+1), not nodes
	short		mins[3];		// for sphere culling
	short		maxs[3];
	unsigned short	firstface;
	unsigned short	numfaces;	// counting both sides
} dnode_t;

typedef struct
{
	int			planenum;
	short		children[2];	// negative numbers are contents
} dclipnode_t;


typedef struct texinfo_s
{
	float		vecs[2][4];		// [s/t][xyz offset]
	int			miptex;
	int			flags;
} texinfo_t;
#define	tex_special		1		// sky or slime, no lightmap or 256 subdivision

// note that edge 0 is never used, because negative edge nums are used for
// counterclockwise use of the edge in a face
typedef struct
{
	unsigned short	v[2];		// vertex numbers
} dedge_t;

#define	maxlightmaps	4
typedef struct
{
	short		planenum;
	short		side;

	int			firstedge;		// we must support > 64k edges
	short		numedges;	
	short		texinfo;

// lighting info
	byte		styles[maxlightmaps];
	int			lightofs;		// start of [numstyles*surfsize] samples
} dface_t;



#define	ambient_water	0
#define	ambient_sky		1
#define	ambient_slime	2
#define	ambient_lava	3

#define	num_ambients			4		// automatic ambient sounds

// leaf 0 is the generic contents_solid leaf, used for all solid areas
// all other leafs need visibility info
typedef struct
{
	int			contents;
	int			visofs;				// -1 = no visibility info

	short		mins[3];			// for frustum culling
	short		maxs[3];

	unsigned short		firstmarksurface;
	unsigned short		nummarksurfaces;

	byte		ambient_level[num_ambients];
} dleaf_t;

//============================================================================

#ifndef quake_game

// the utilities get to be lazy and just use large static arrays

extern	int			nummodels;
extern	dmodel_t	dmodels[max_map_models];

extern	int			visdatasize;
extern	byte		dvisdata[max_map_visibility];

extern	int			lightdatasize;
extern	byte		dlightdata[max_map_lighting];

extern	int			texdatasize;
extern	byte		dtexdata[max_map_miptex]; // (dmiptexlump_t)

extern	int			entdatasize;
extern	char		dentdata[max_map_entstring];

extern	int			numleafs;
extern	dleaf_t		dleafs[max_map_leafs];

extern	int			numplanes;
extern	dplane_t	dplanes[max_map_planes];

extern	int			numvertexes;
extern	dvertex_t	dvertexes[max_map_verts];

extern	int			numnodes;
extern	dnode_t		dnodes[max_map_nodes];

extern	int			numtexinfo;
extern	texinfo_t	texinfo[max_map_texinfo];

extern	int			numfaces;
extern	dface_t		dfaces[max_map_faces];

extern	int			numclipnodes;
extern	dclipnode_t	dclipnodes[max_map_clipnodes];

extern	int			numedges;
extern	dedge_t		dedges[max_map_edges];

extern	int			nummarksurfaces;
extern	unsigned short	dmarksurfaces[max_map_marksurfaces];

extern	int			numsurfedges;
extern	int			dsurfedges[max_map_surfedges];



void	loadbspfile (char *filename);
void	writebspfile (char *filename);
void	printbspfilesizes (void);

#endif