2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 #include "collision.h"
28 #define MOVE_NOMONSTERS 1
29 #define MOVE_MISSILE 2
30 #define MOVE_WORLDONLY 3
31 #define MOVE_HITMODEL 4
34 #define AREA_GRIDNODES (AREA_GRID * AREA_GRID)
39 struct link_s *prev, *next;
42 typedef struct world_physics_s
44 // for ODE physics engine
45 qboolean ode; // if true then ode is activated
48 void *ode_contactgroup;
49 // number of constraint solver iterations to use (for dWorldStepFast)
51 // actual step (server frametime / ode_iterations)
53 // max velocity for a 1-unit radius object at current step to prevent
59 typedef struct world_s
62 char filename[MAX_QPATH];
66 int areagrid_stats_calls;
67 int areagrid_stats_nodechecks;
68 int areagrid_stats_entitychecks;
70 link_t areagrid[AREA_GRIDNODES];
71 link_t areagrid_outside;
73 vec3_t areagrid_scale;
77 int areagrid_marknumber;
79 // if the QC uses a physics engine, the data for it is here
80 world_physics_t physics;
86 // cyclic doubly-linked list functions
87 void World_ClearLink(link_t *l);
88 void World_RemoveLink(link_t *l);
89 void World_InsertLinkBefore(link_t *l, link_t *before, int entitynumber);
91 void World_Init(void);
92 void World_Shutdown(void);
94 /// called after the world model has been loaded, before linking any entities
95 void World_SetSize(world_t *world, const char *filename, const vec3_t mins, const vec3_t maxs);
96 /// unlinks all entities (used before reallocation of edicts)
97 void World_UnlinkAll(world_t *world);
99 void World_PrintAreaStats(world_t *world, const char *worldname);
101 /// call before removing an entity, and before trying to move one,
102 /// so it doesn't clip against itself
103 void World_UnlinkEdict(struct prvm_edict_s *ent);
105 /// Needs to be called any time an entity changes origin, mins, maxs
106 void World_LinkEdict(world_t *world, struct prvm_edict_s *ent, const vec3_t mins, const vec3_t maxs);
108 /// \returns list of entities touching a box
109 int World_EntitiesInBox(world_t *world, const vec3_t mins, const vec3_t maxs, int maxlist, struct prvm_edict_s **list);
111 void World_Start(world_t *world);
112 void World_End(world_t *world);
115 // this is called by SV_Physics
116 void World_Physics_Frame(world_t *world, double frametime, double gravity);
118 // remove physics data from entity
119 // this is called by entity removal
121 void World_Physics_RemoveFromEntity(world_t *world, struct prvm_edict_s *ed);
122 void World_Physics_RemoveJointFromEntity(world_t *world, struct prvm_edict_s *ed);