272 lines
9.2 KiB
C
272 lines
9.2 KiB
C
/*
|
|
THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
|
|
SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
|
|
END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
|
|
ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
|
|
IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
|
|
SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
|
|
FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
|
|
CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
|
|
AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
|
|
COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* Include file for functions which need to access segment data structure.
|
|
*
|
|
*/
|
|
|
|
#ifndef _SEGMENT_H
|
|
#define _SEGMENT_H
|
|
|
|
#include "physfsx.h"
|
|
#include "pstypes.h"
|
|
#include "fix.h"
|
|
#include "vecmat.h"
|
|
|
|
// Version 1 - Initial version
|
|
// Version 2 - Mike changed some shorts to bytes in segments, so incompatible!
|
|
|
|
#define SIDE_IS_QUAD 1 // render side as quadrilateral
|
|
#define SIDE_IS_TRI_02 2 // render side as two triangles, triangulated along edge from 0 to 2
|
|
#define SIDE_IS_TRI_13 3 // render side as two triangles, triangulated along edge from 1 to 3
|
|
|
|
// Set maximum values for segment and face data structures.
|
|
#define MAX_VERTICES_PER_SEGMENT 8
|
|
#define MAX_SIDES_PER_SEGMENT 6
|
|
#define MAX_VERTICES_PER_POLY 4
|
|
#define WLEFT 0
|
|
#define WTOP 1
|
|
#define WRIGHT 2
|
|
#define WBOTTOM 3
|
|
#define WBACK 4
|
|
#define WFRONT 5
|
|
|
|
#define MAX_SEGMENTS_ORIGINAL 900
|
|
#define MAX_SEGMENT_VERTICES_ORIGINAL (4*MAX_SEGMENTS_ORIGINAL)
|
|
#define MAX_SEGMENTS 9000
|
|
#define MAX_SEGMENT_VERTICES (4*MAX_SEGMENTS)
|
|
|
|
//normal everyday vertices
|
|
|
|
#define DEFAULT_LIGHTING 0 // (F1_0/2)
|
|
|
|
#ifdef EDITOR //verts for the new segment
|
|
# define NUM_NEW_SEG_VERTICES 8
|
|
# define NEW_SEGMENT_VERTICES (MAX_SEGMENT_VERTICES)
|
|
# define MAX_VERTICES (MAX_SEGMENT_VERTICES+NUM_NEW_SEG_VERTICES)
|
|
#else //No editor
|
|
# define MAX_VERTICES (MAX_SEGMENT_VERTICES)
|
|
#endif
|
|
|
|
// Returns true if segnum references a child, else returns false.
|
|
// Note that -1 means no connection, -2 means a connection to the outside world.
|
|
#define IS_CHILD(segnum) (segnum > -1)
|
|
|
|
//Structure for storing u,v,light values.
|
|
//NOTE: this structure should be the same as the one in 3d.h
|
|
typedef struct uvl {
|
|
fix u, v, l;
|
|
} uvl;
|
|
|
|
#ifdef COMPACT_SEGS
|
|
typedef struct side {
|
|
sbyte type; // replaces num_faces and tri_edge, 1 = quad, 2 = 0:2 triangulation, 3 = 1:3 triangulation
|
|
ubyte pad; //keep us longword alligned
|
|
short wall_num;
|
|
short tmap_num;
|
|
short tmap_num2;
|
|
uvl uvls[4];
|
|
//vms_vector normals[2]; // 2 normals, if quadrilateral, both the same.
|
|
} side;
|
|
#else
|
|
typedef struct side {
|
|
sbyte type; // replaces num_faces and tri_edge, 1 = quad, 2 = 0:2 triangulation, 3 = 1:3 triangulation
|
|
ubyte pad; //keep us longword alligned
|
|
short wall_num;
|
|
short tmap_num;
|
|
short tmap_num2;
|
|
uvl uvls[4];
|
|
vms_vector normals[2]; // 2 normals, if quadrilateral, both the same.
|
|
} side;
|
|
#endif
|
|
|
|
struct segment {
|
|
#ifdef EDITOR
|
|
short segnum; // segment number, not sure what it means
|
|
short group; // group number to which the segment belongs.
|
|
#endif
|
|
short objects; // pointer to objects in this segment
|
|
short children[MAX_SIDES_PER_SEGMENT]; // indices of 6 children segments, front, left, top, right, bottom, back
|
|
side sides[MAX_SIDES_PER_SEGMENT]; // 6 sides
|
|
int verts[MAX_VERTICES_PER_SEGMENT]; // vertex ids of 4 front and 4 back vertices
|
|
ubyte special; // what type of center this is
|
|
sbyte matcen_num; // which center segment is associated with.
|
|
fix static_light;
|
|
int degenerated; // true if this segment has gotten turned inside out, or something.
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
short value;
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
sbyte value;
|
|
ubyte s2_flags;
|
|
#endif
|
|
};
|
|
|
|
typedef struct segment segment;
|
|
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
#define segment2 segment
|
|
|
|
#define Segment2s Segments
|
|
// Get pointer to the segment2 for the given segment pointer
|
|
#define s2s2(segp) (segp)
|
|
|
|
#define S2F_AMBIENT_WATER 0x01
|
|
#define S2F_AMBIENT_LAVA 0x02
|
|
#endif
|
|
|
|
//values for special field
|
|
#define SEGMENT_IS_NOTHING 0
|
|
#define SEGMENT_IS_FUELCEN 1
|
|
#define SEGMENT_IS_REPAIRCEN 2
|
|
#define SEGMENT_IS_CONTROLCEN 3
|
|
#define SEGMENT_IS_ROBOTMAKER 4
|
|
#if defined(DXX_BUILD_DESCENT_I)
|
|
#define MAX_CENTER_TYPES 5
|
|
#elif defined(DXX_BUILD_DESCENT_II)
|
|
#define SEGMENT_IS_GOAL_BLUE 5
|
|
#define SEGMENT_IS_GOAL_RED 6
|
|
#define MAX_CENTER_TYPES 7
|
|
#endif
|
|
|
|
#ifdef COMPACT_SEGS
|
|
extern void get_side_normal(segment *sp, int sidenum, int normal_num, vms_vector * vm );
|
|
extern void get_side_normals(segment *sp, int sidenum, vms_vector * vm1, vms_vector *vm2 );
|
|
#endif
|
|
|
|
// Local segment data.
|
|
// This is stuff specific to a segment that does not need to get
|
|
// written to disk. This is a handy separation because we can add to
|
|
// this structure without obsoleting existing data on disk.
|
|
|
|
#define SS_REPAIR_CENTER 0x01 // Bitmask for this segment being part of repair center.
|
|
|
|
//--repair-- typedef struct {
|
|
//--repair-- int special_type;
|
|
//--repair-- short special_segment; // if special_type indicates repair center, this is the base of the repair center
|
|
//--repair-- } lsegment;
|
|
|
|
typedef struct {
|
|
int num_segments;
|
|
int num_vertices;
|
|
short segments[MAX_SEGMENTS];
|
|
int vertices[MAX_VERTICES];
|
|
} group;
|
|
|
|
// Globals from mglobal.c
|
|
#define Segment2s Segments
|
|
extern vms_vector Vertices[MAX_VERTICES];
|
|
extern segment Segments[MAX_SEGMENTS];
|
|
extern int Num_segments;
|
|
extern int Num_vertices;
|
|
|
|
// Get pointer to the segment2 for the given segment pointer
|
|
#define s2s2(segp) (segp)
|
|
|
|
extern const sbyte Side_to_verts[MAX_SIDES_PER_SEGMENT][4]; // Side_to_verts[my_side] is list of vertices forming side my_side.
|
|
extern const int Side_to_verts_int[MAX_SIDES_PER_SEGMENT][4]; // Side_to_verts[my_side] is list of vertices forming side my_side.
|
|
extern const char Side_opposite[MAX_SIDES_PER_SEGMENT]; // Side_opposite[my_side] returns side opposite cube from my_side.
|
|
|
|
#define SEG_PTR_2_NUM(segptr) (Assert((unsigned) (segptr-Segments)<MAX_SEGMENTS),(segptr)-Segments)
|
|
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
// New stuff, 10/14/95: For shooting out lights and monitors.
|
|
// Light cast upon vert_light vertices in segnum:sidenum by some light
|
|
typedef struct {
|
|
short segnum;
|
|
sbyte sidenum;
|
|
sbyte dummy;
|
|
ubyte vert_light[4];
|
|
} delta_light;
|
|
|
|
// Light at segnum:sidenum casts light on count sides beginning at index (in array Delta_lights)
|
|
typedef struct {
|
|
short segnum;
|
|
sbyte sidenum;
|
|
sbyte count;
|
|
short index;
|
|
} dl_index;
|
|
|
|
#define MAX_DL_INDICES 500
|
|
#define MAX_DELTA_LIGHTS 10000
|
|
|
|
#define DL_SCALE 2048 // Divide light to allow 3 bits integer, 5 bits fraction.
|
|
|
|
extern dl_index Dl_indices[MAX_DL_INDICES];
|
|
extern delta_light Delta_lights[MAX_DELTA_LIGHTS];
|
|
extern int Num_static_lights;
|
|
|
|
extern int subtract_light(int segnum, int sidenum);
|
|
extern int add_light(int segnum, int sidenum);
|
|
extern void restore_all_lights_in_mine(void);
|
|
extern void clear_light_subtracted(void);
|
|
|
|
extern ubyte Light_subtracted[MAX_SEGMENTS];
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// --------------------- Segment interrogation functions ----------------------
|
|
// Do NOT read the segment data structure directly. Use these
|
|
// functions instead. The segment data structure is GUARANTEED to
|
|
// change MANY TIMES. If you read the segment data structure
|
|
// directly, your code will break, I PROMISE IT!
|
|
|
|
// Return a pointer to the list of vertex indices for the current
|
|
// segment in vp and the number of vertices in *nv.
|
|
extern void med_get_vertex_list(segment *s,int *nv,int **vp);
|
|
|
|
// Return a pointer to the list of vertex indices for face facenum in
|
|
// vp and the number of vertices in *nv.
|
|
extern void med_get_face_vertex_list(segment *s,int side, int facenum,int *nv,int **vp);
|
|
|
|
// Set *nf = number of faces in segment s.
|
|
extern void med_get_num_faces(segment *s,int *nf);
|
|
|
|
void med_validate_segment_side(segment *sp,int side);
|
|
|
|
// Delete segment function added for curves.c
|
|
extern int med_delete_segment(segment *sp);
|
|
|
|
// Delete segment from group
|
|
extern void delete_segment_from_group(int segment_num, int group_num);
|
|
|
|
// Add segment to group
|
|
extern void add_segment_to_group(int segment_num, int group_num);
|
|
|
|
// Verify that all vertices are legal.
|
|
extern void med_check_all_vertices();
|
|
|
|
#if defined(DXX_BUILD_DESCENT_II)
|
|
/*
|
|
* reads a segment2 structure from a PHYSFS_file
|
|
*/
|
|
void segment2_read(segment2 *s2, PHYSFS_file *fp);
|
|
|
|
/*
|
|
* reads a delta_light structure from a PHYSFS_file
|
|
*/
|
|
void delta_light_read(delta_light *dl, PHYSFS_file *fp);
|
|
|
|
/*
|
|
* reads a dl_index structure from a PHYSFS_file
|
|
*/
|
|
void dl_index_read(dl_index *di, PHYSFS_file *fp);
|
|
|
|
void segment2_write(segment2 *s2, PHYSFS_file *fp);
|
|
void delta_light_write(delta_light *dl, PHYSFS_file *fp);
|
|
void dl_index_write(dl_index *di, PHYSFS_file *fp);
|
|
#endif
|
|
|
|
#endif
|