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https://github.com/DrBeef/QVR.git
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146 lines
4 KiB
C
146 lines
4 KiB
C
/*
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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 the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// world.h
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#ifndef WORLD_H
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#define WORLD_H
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#include "collision.h"
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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_WORLDONLY 3
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#define MOVE_HITMODEL 4
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#define AREA_GRID 128
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#define AREA_GRIDNODES (AREA_GRID * AREA_GRID)
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typedef struct link_s
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{
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int entitynumber;
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struct link_s *prev, *next;
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} link_t;
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typedef struct world_physics_s
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{
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// for ODE physics engine
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qboolean ode; // if true then ode is activated
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void *ode_world;
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void *ode_space;
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void *ode_contactgroup;
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// number of constraint solver iterations to use (for dWorldQuickStep)
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int ode_iterations;
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// actual step (server frametime / ode_iterations)
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vec_t ode_step;
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// time we need to simulate, for constantstep
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vec_t ode_time;
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// stats
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int ode_numobjects; // total objects cound
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int ode_activeovjects; // active objects count
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// max velocity for a 1-unit radius object at current step to prevent
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// missed collisions
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vec_t ode_movelimit;
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}
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world_physics_t;
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struct prvm_prog_s;
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typedef struct world_s
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{
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// convenient fields
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char filename[MAX_QPATH];
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vec3_t mins;
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vec3_t maxs;
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struct prvm_prog_s *prog;
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int areagrid_stats_calls;
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int areagrid_stats_nodechecks;
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int areagrid_stats_entitychecks;
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link_t areagrid[AREA_GRIDNODES];
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link_t areagrid_outside;
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vec3_t areagrid_bias;
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vec3_t areagrid_scale;
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vec3_t areagrid_mins;
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vec3_t areagrid_maxs;
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vec3_t areagrid_size;
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int areagrid_marknumber;
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// if the QC uses a physics engine, the data for it is here
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world_physics_t physics;
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}
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world_t;
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struct prvm_edict_s;
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// cyclic doubly-linked list functions
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void World_ClearLink(link_t *l);
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void World_RemoveLink(link_t *l);
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void World_InsertLinkBefore(link_t *l, link_t *before, int entitynumber);
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void World_Init(void);
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void World_Shutdown(void);
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/// called after the world model has been loaded, before linking any entities
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void World_SetSize(world_t *world, const char *filename, const vec3_t mins, const vec3_t maxs, struct prvm_prog_s *prog);
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/// unlinks all entities (used before reallocation of edicts)
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void World_UnlinkAll(world_t *world);
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void World_PrintAreaStats(world_t *world, const char *worldname);
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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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void World_UnlinkEdict(struct prvm_edict_s *ent);
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/// Needs to be called any time an entity changes origin, mins, maxs
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void World_LinkEdict(world_t *world, struct prvm_edict_s *ent, const vec3_t mins, const vec3_t maxs);
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/// \returns list of entities touching a box
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int World_EntitiesInBox(world_t *world, const vec3_t mins, const vec3_t maxs, int maxlist, struct prvm_edict_s **list);
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void World_Start(world_t *world);
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void World_End(world_t *world);
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// physics macros
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#ifndef ODE_STATIC
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# define ODE_DYNAMIC 1
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#endif
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#if defined(ODE_STATIC) || defined(ODE_DYNAMIC)
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# define USEODE 1
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#endif
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// update physics
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// this is called by SV_Physics
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void World_Physics_Frame(world_t *world, double frametime, double gravity);
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// change physics properties of entity
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struct prvm_edict_s;
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struct edict_odefunc_s;
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void World_Physics_ApplyCmd(struct prvm_edict_s *ed, struct edict_odefunc_s *f);
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// remove physics data from entity
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// this is called by entity removal
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void World_Physics_RemoveFromEntity(world_t *world, struct prvm_edict_s *ed);
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void World_Physics_RemoveJointFromEntity(world_t *world, struct prvm_edict_s *ed);
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#endif
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