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.
27 #include "collision.h"
30 #define MOVE_NOMONSTERS 1
31 #define MOVE_MISSILE 2
32 #define MOVE_WORLDONLY 3
33 #define MOVE_HITMODEL 4
36 #define AREA_GRIDNODES (AREA_GRID * AREA_GRID)
44 typedef struct world_physics_s
46 // for ODE physics engine
47 qbool ode; // if true then ode is activated
50 void *ode_contactgroup;
51 // number of constraint solver iterations to use (for dWorldQuickStep)
53 // actual step (server frametime / ode_iterations)
55 // time we need to simulate, for constantstep
58 int ode_numobjects; // total objects cound
59 int ode_activeovjects; // active objects count
60 // max velocity for a 1-unit radius object at current step to prevent
68 typedef struct world_s
71 char filename[MAX_QPATH];
74 struct prvm_prog_s *prog;
76 int areagrid_stats_calls;
77 int areagrid_stats_nodechecks;
78 int areagrid_stats_entitychecks;
80 link_t areagrid[AREA_GRIDNODES];
81 link_t areagrid_outside;
83 vec3_t areagrid_scale;
87 int areagrid_marknumber;
89 // if the QC uses a physics engine, the data for it is here
90 world_physics_t physics;
96 // cyclic doubly-linked list functions
97 void World_ClearLink(link_t *l);
98 void World_RemoveLink(link_t *l);
99 void World_InsertLinkBefore(link_t *l, link_t *before, int entitynumber);
101 void World_Init(void);
102 void World_Shutdown(void);
104 /// called after the world model has been loaded, before linking any entities
105 void World_SetSize(world_t *world, const char *filename, const vec3_t mins, const vec3_t maxs, struct prvm_prog_s *prog);
106 /// unlinks all entities (used before reallocation of edicts)
107 void World_UnlinkAll(world_t *world);
109 void World_PrintAreaStats(world_t *world, const char *worldname);
111 /// call before removing an entity, and before trying to move one,
112 /// so it doesn't clip against itself
113 void World_UnlinkEdict(struct prvm_edict_s *ent);
115 /// Needs to be called any time an entity changes origin, mins, maxs
116 void World_LinkEdict(world_t *world, struct prvm_edict_s *ent, const vec3_t mins, const vec3_t maxs);
118 /// \returns list of entities touching a box
119 int World_EntitiesInBox(world_t *world, const vec3_t mins, const vec3_t maxs, int maxlist, struct prvm_edict_s **list);
121 void World_Start(world_t *world);
122 void World_End(world_t *world);
125 // this is called by SV_Physics
126 void World_Physics_Frame(world_t *world, double frametime, double gravity);
128 // change physics properties of entity
130 struct edict_odefunc_s;
131 void World_Physics_ApplyCmd(struct prvm_edict_s *ed, struct edict_odefunc_s *f);
133 // remove physics data from entity
134 // this is called by entity removal
135 void World_Physics_RemoveFromEntity(world_t *world, struct prvm_edict_s *ed);
136 void World_Physics_RemoveJointFromEntity(world_t *world, struct prvm_edict_s *ed);