mirror of
https://git.code.sf.net/p/quake/quakeforge
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155 lines
4.9 KiB
C
155 lines
4.9 KiB
C
/*
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world.h
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@description@
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the 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 this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __world_h
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#define __world_h
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#include "QF/link.h"
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#include "QF/mathlib.h"
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#include "QF/model.h"
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typedef struct {
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qboolean present;
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vec3_t laggedpos;
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} laggedentinfo_t;
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typedef enum {
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tr_point,
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tr_box,
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tr_ellipsoid,
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} trace_e;
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typedef struct trace_s {
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qboolean allsolid; // if true, plane is not valid
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qboolean startsolid; // if true, the initial point was in a solid area
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qboolean inopen, inwater;
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float fraction; // time completed, 1.0 = didn't hit anything
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vec3_t extents; // 1/2 size of traced box
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trace_e type; // type of trace to perform
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vec3_t endpos; // final position
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plane_t plane; // surface normal at impact
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struct edict_s *ent; // entity the surface is on
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unsigned contents; // contents of leafs touched by trace
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} trace_t;
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#define MOVE_NORMAL 0
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#define MOVE_NOMONSTERS 1
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#define MOVE_MISSILE 2
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#define MOVE_HITMODEL 4
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#define MOVE_RESERVED 8
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#define MOVE_TRIGGERS 16 //triggers must be marked with FINDABLE_NONSOLID (an alternative to solid-corpse)
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#define MOVE_EVERYTHING 32 //can return triggers and non-solid items if they're marked with FINDABLE_NONSOLID (works even if the items are not properly linked)
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#define MOVE_LAGGED 64 //trace touches current last-known-state, instead of actual ents (just affects players for now)
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#define MOVE_ENTCHAIN 128 //chain of impacted ents, otherwise result shows only world
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typedef struct areanode_s {
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int axis; // -1 = leaf node
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float dist;
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struct areanode_s *children[2];
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link_t trigger_edicts;
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link_t solid_edicts;
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} areanode_t;
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#define AREA_DEPTH 4
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#define AREA_NODES 32
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extern areanode_t sv_areanodes[AREA_NODES];
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void SV_FreeAllEdictLeafs (void);
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void SV_InitHull (hull_t *hull, mclipnode_t *clipnodes, plane_t *planes);
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void SV_ClearWorld (void);
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// called after the world model has been loaded, before linking any entities
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void SV_UnlinkEdict (struct edict_s *ent);
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// call before removing an entity, and before trying to move one,
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// so it doesn't clip against itself
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// flags ent->v.modified
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void SV_LinkEdict (struct edict_s *ent, qboolean touch_triggers);
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// Needs to be called any time an entity changes origin, mins, maxs, or solid
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// flags ent->v.modified
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// sets ent->v.absmin and ent->v.absmax
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// if touchtriggers, calls prog functions for the intersected triggers
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int SV_PointContents (const vec3_t p);
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int SV_TruePointContents (const vec3_t p);
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// returns the CONTENTS_* value from the world at the given point.
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// does not check any entities at all
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// the non-true version remaps the water current contents to content_water
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struct edict_s *SV_TestEntityPosition (struct edict_s *ent);
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trace_t SV_Move (const vec3_t start, const vec3_t mins, const vec3_t maxs,
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const vec3_t end, int type, struct edict_s *passedict);
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// mins and maxs are reletive
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// if the entire move stays in a solid volume, trace.allsolid will be set
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// if the starting point is in a solid, it will be allowed to move out
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// to an open area
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// nomonsters is used for line of sight or edge testing, where mosnters
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// shouldn't be considered solid objects
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// passedict is explicitly excluded from clipping checks (normally NULL)
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struct edict_s *SV_TestPlayerPosition (struct edict_s *ent,
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const vec3_t origin);
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int SV_HullPointContents (hull_t *hull, int num, const vec3_t p);
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hull_t *SV_HullForEntity (struct edict_s *ent, const vec3_t mins,
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const vec3_t maxs, vec3_t extents, vec3_t offset);
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void MOD_TraceLine (hull_t *hull, int num,
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const vec3_t start, const vec3_t end, trace_t *trace);
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int MOD_HullContents (hull_t *hull, int num, const vec3_t origin,
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trace_t *trace);
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typedef struct clipport_s {
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int planenum;
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struct clipport_s *next[2]; ///< front, back
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struct clipleaf_s *leafs[2]; ///< front, back
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struct winding_s *winding;
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struct winding_s *edges; ///< unit vectors along edges
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} clipport_t;
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typedef struct clipleaf_s {
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clipport_t *portals;
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int contents;
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int test_count;
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} clipleaf_t;
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typedef struct nodeleaf_s {
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clipleaf_t *leafs[2]; ///< front, back. If null, node's child is a node
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} nodeleaf_t;
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nodeleaf_t *MOD_BuildBrushes (hull_t *hull);
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void MOD_FreeBrushes (hull_t *hull);
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#endif // __world_h
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