393 lines
14 KiB
C
393 lines
14 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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typedef struct plane_s
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{
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vec3_t normal;
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float dist;
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} plane_t;
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typedef struct csurface_s
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{
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char name[16];
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int flags;
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int value;
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} q2csurface_t;
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typedef struct cplane_s
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{
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vec3_t normal;
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float dist;
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qbyte type; // for fast side tests
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qbyte signbits; // signx + (signy<<1) + (signz<<1)
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qbyte pad[2];
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} cplane_t;
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/*
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typedef struct trace_s
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{
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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 endpos; // final position
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plane_t plane; // surface normal at impact
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edict_t *ent; // entity the surface is on
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} trace_t;
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*/
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//these two structures must match (except for extra qw members)
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typedef struct trace_s
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{
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//DON'T ADD ANYTHING BETWEEN THIS LINE
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//q2 game dll code will memcpy the lot from trace_t to q2trace_t.
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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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float fraction; // time completed, 1.0 = didn't hit anything (nudged closer to the start point to cover precision issues)
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vec3_t endpos; // final position
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cplane_t plane; // surface normal at impact
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q2csurface_t *surface; // q2-compat surface hit
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int contents; // contents on other side of surface hit
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void *ent; // not set by CM_*() functions
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//AND THIS LINE
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int entnum;
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qboolean inopen, inwater;
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float truefraction; //can be negative, also has floating point precision issues, etc.
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int brush_id;
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int brush_face;
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int surface_id;
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int triangle_id;
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int bone_id;
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} trace_t;
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typedef struct q2trace_s
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{
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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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float fraction; // time completed, 1.0 = didn't hit anything
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vec3_t endpos; // final position
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cplane_t plane; // surface normal at impact
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q2csurface_t *surface; // surface hit
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int contents; // contents on other side of surface hit
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void *ent; // not set by CM_*() functions
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} q2trace_t;
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// edict->flags
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#define FL_FLY (1<<0)
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#define FL_SWIM (1<<1)
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//#define FL_GLIMPSE (1<<2)
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#define FL_CLIENT (1<<3)
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#define FL_INWATER (1<<4)
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#define FL_MONSTER (1<<5)
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#define FL_GODMODE (1<<6)
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#define FL_NOTARGET (1<<7)
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#define FL_ITEM (1<<8)
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#define FL_ONGROUND (1<<9)
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#define FL_PARTIALGROUND (1<<10) // not all corners are valid
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#define FL_WATERJUMP (1<<11) // player jumping out of water
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#define FL_JUMPRELEASED (1<<12)
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//13
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#define FL_FINDABLE_NONSOLID (1<<14) //a cpqwsv feature
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#define FL_MOVECHAIN_ANGLE (1<<15) // hexen2 - when in a move chain, will update the angle
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#define FLQW_LAGGEDMOVE (1<<16)
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#define FLH2_HUNTFACE (1<<16)
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#define FLH2_NOZ (1<<17)
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//18
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//19
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#define FL_HUBSAVERESET (1<<20) //hexen2, ent is reverted to original state on map changes.
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#define FL_CLASS_DEPENDENT (1<<21) //hexen2
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#define MOVE_NORMAL 0
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#define MOVE_NOMONSTERS (1<<0)
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#define MOVE_MISSILE (1<<1)
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#ifndef NOLEGACY
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#define MOVE_WORLDONLY (MOVE_NOMONSTERS|MOVE_MISSILE) //use MOVE_OTHERONLY instead
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#endif
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#define MOVE_HITMODEL (1<<2)
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#define MOVE_RESERVED (1<<3) //so we are less likly to get into tricky situations when we want to steal annother future DP extension.
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#define MOVE_TRIGGERS (1<<4) //triggers must be marked with FINDABLE_NONSOLID (an alternative to solid-corpse)
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#define MOVE_EVERYTHING (1<<5) //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 (1<<6) //trace touches current last-known-state, instead of actual ents (just affects players for now)
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#define MOVE_ENTCHAIN (1<<7) //chain of impacted ents, otherwise result shows only world
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#define MOVE_OTHERONLY (1<<8) //test the trace against a single entity, ignoring non-solid/owner/etc flags (but respecting contents).
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#define MOVE_IGNOREHULL (1u<<31) //used on tracelines etc to simplify the code a little
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#ifdef USEAREAGRID
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//this macro does it in two steps to avoid float precision issues.
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//it also ensures that it will return at least one grid section.
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#define CALCAREAGRIDBOUNDS(w,min,max) \
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ming[0] = floor(((min)[0]+(w)->gridbias[0]) / (w)->gridscale[0]); \
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ming[1] = floor(((min)[1]+(w)->gridbias[1]) / (w)->gridscale[1]); \
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maxg[0] = floor(((max)[0]+(w)->gridbias[0]) / (w)->gridscale[0]); \
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maxg[1] = floor(((max)[1]+(w)->gridbias[1]) / (w)->gridscale[1]); \
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ming[0] = bound(0, ming[0], (w)->gridsize[0]-1); \
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ming[1] = bound(0, ming[1], (w)->gridsize[1]-1); \
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maxg[0] = bound(ming[0], maxg[0], (w)->gridsize[0]-1)+1; \
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maxg[1] = bound(ming[1], maxg[1], (w)->gridsize[1]-1)+1;
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#else
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#define EDICT_FROM_AREA(l) STRUCT_FROM_LINK(l,wedict_t,area)
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#endif
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#if defined(Q2SERVER) || !defined(USEAREAGRID)
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//q2 game code embeds a link_t struct inside the public edicts.
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//this is why we can't have nice things.
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//a binary tree. ents straddling a node are inserted into the parent.
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//this is a problem when your root note passes through '0 0 0' and you have shitty mods with 2000 such ents.
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typedef struct areanode_s
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{
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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 edicts;
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} areanode_t;
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#endif
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typedef struct wedict_s wedict_t;
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#define PROG_TO_WEDICT (wedict_t*)PROG_TO_EDICT
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#define WEDICT_NUM_UB (wedict_t *)EDICT_NUM_UB //ent number isn't bounded
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#define WEDICT_NUM_PB (wedict_t *)EDICT_NUM_PB //pre-bound
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#define G_WEDICT (wedict_t *)G_EDICT
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typedef struct
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{
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qboolean present;
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vec3_t laggedpos;
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} laggedentinfo_t;
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#ifdef USERBE
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typedef struct
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{
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void (QDECL *End)(struct world_s *world);
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void (QDECL *RemoveJointFromEntity)(struct world_s *world, wedict_t *ed);
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void (QDECL *RemoveFromEntity)(struct world_s *world, wedict_t *ed);
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qboolean (QDECL *RagMatrixToBody)(rbebody_t *bodyptr, float *mat);
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qboolean (QDECL *RagCreateBody)(struct world_s *world, rbebody_t *bodyptr, rbebodyinfo_t *bodyinfo, float *mat, wedict_t *ent);
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void (QDECL *RagMatrixFromJoint)(rbejoint_t *joint, rbejointinfo_t *info, float *mat);
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void (QDECL *RagMatrixFromBody)(struct world_s *world, rbebody_t *bodyptr, float *mat);
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void (QDECL *RagEnableJoint)(rbejoint_t *joint, qboolean enabled);
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void (QDECL *RagCreateJoint)(struct world_s *world, rbejoint_t *joint, rbejointinfo_t *info, rbebody_t *body1, rbebody_t *body2, vec3_t aaa2[3]);
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void (QDECL *RagDestroyBody)(struct world_s *world, rbebody_t *bodyptr);
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void (QDECL *RagDestroyJoint)(struct world_s *world, rbejoint_t *joint);
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void (QDECL *RunFrame)(struct world_s *world, double frametime, double gravity);
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void (QDECL *PushCommand)(struct world_s *world, rbecommandqueue_t *cmd);
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// void (QDECL *ExpandBodyAABB)(struct world_s *world, rbebody_t *bodyptr, float *mins, float *maxs); //expands an aabb to include the size of the body.
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void (QDECL *Trace) (struct world_s *world, wedict_t *ed, vec3_t start, vec3_t end, trace_t *trace);
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} rigidbodyengine_t;
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#endif
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struct world_s
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{
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void (QDECL *Event_Touch)(struct world_s *w, wedict_t *s, wedict_t *o, trace_t *trace);
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void (QDECL *Event_Think)(struct world_s *w, wedict_t *s);
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void (QDECL *Event_Sound) (float *origin, wedict_t *entity, int channel, const char *sample, int volume, float attenuation, float pitchadj, float timeoffset, unsigned int flags);
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qboolean (QDECL *Event_ContentsTransition) (struct world_s *w, wedict_t *ent, int oldwatertype, int newwatertype);
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model_t *(QDECL *Get_CModel)(struct world_s *w, int modelindex);
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void (QDECL *Get_FrameState)(struct world_s *w, wedict_t *s, framestate_t *fstate);
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unsigned int keydestmask; //menu:kdm_menu, csqc:kdm_game, server:0
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unsigned int max_edicts; //limiting factor... 1024 fields*4*MAX_EDICTS == a heck of a lot.
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unsigned int num_edicts; // increases towards MAX_EDICTS
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/*FTE_DEPRECATED*/ unsigned int edict_size; //still used in copyentity
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wedict_t *edicts; // can NOT be array indexed.
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struct pubprogfuncs_s *progs;
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qboolean usesolidcorpse; //to disable SOLID_CORPSE when running hexen2 due to conflict.
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model_t *worldmodel;
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unsigned int spawncount; //number of times it got restarted, so we can stop events from happening after vm restarts
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#ifdef USEAREAGRID
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vec2_t gridbias;
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vec2_t gridscale;
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size_t gridsize[2];
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areagridlink_t *gridareas; //[gridsize[0]*gridsize[1]]
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areagridlink_t jumboarea; //node containing ents too large to fit.
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areagridlink_t portallist;
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#else
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areanode_t portallist;
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#endif
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#if defined(Q2SERVER) || !defined(USEAREAGRID)
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areanode_t *areanodes;
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int areanodedepth;
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int numareanodes;
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#endif
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double physicstime; // the last time global physics were run
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unsigned int framenum;
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int lastcheck; // used by PF_checkclient
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double lastchecktime; // for monster ai
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qbyte *lastcheckpvs; // for monster ai
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/*antilag*/
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float lagentsfrac;
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laggedentinfo_t *lagents;
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unsigned int maxlagents;
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/*qc globals*/
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struct {
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int *self;
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int *other;
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int *newmis;
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float *time;
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float *frametime;
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float *force_retouch;
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float *physics_mode;
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float *v_forward;
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float *v_right;
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float *v_up;
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float *defaultgravitydir;
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//used by menu+csqc.
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float *drawfont;
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float *drawfontscale;
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} g;
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#ifdef USERBE
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qboolean rbe_hasphysicsents;
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rigidbodyengine_t *rbe;
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#endif
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#ifdef ENGINE_ROUTING
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void *waypoints;
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#endif
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};
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typedef struct world_s world_t;
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void PF_Common_RegisterCvars(void);
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qboolean QDECL World_RegisterPhysicsEngine(const char *enginename, void(QDECL*World_Bullet_Start)(world_t*world));
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void QDECL World_UnregisterPhysicsEngine(const char *enginename);
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qboolean QDECL World_GenerateCollisionMesh(world_t *world, model_t *mod, wedict_t *ed, vec3_t geomcenter);
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void QDECL World_ReleaseCollisionMesh(wedict_t *ed);
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void World_Destroy (world_t *w);
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void World_RBE_Start(world_t *world);
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void World_RBE_Shutdown(world_t *world);
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void World_ClearWorld (world_t *w, qboolean relink);
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// called after the world model has been loaded, before linking any entities
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void World_ClearWorld_Nodes (world_t *w, qboolean relink); //legacy code for q2 compat.
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void World_UnlinkEdict (wedict_t *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 QDECL World_LinkEdict (world_t *w, wedict_t *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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#ifdef USEAREAGRID
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void World_TouchAllLinks (world_t *w, wedict_t *ent);
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extern size_t areagridsequence;
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#else
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void World_TouchLinks (world_t *w, wedict_t *ent, areanode_t *node);
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#define World_TouchAllLinks(w,e) World_TouchLinks(w,e,(w)->areanodes)
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#endif
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int World_PointContents (world_t *w, 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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wedict_t *World_TestEntityPosition (world_t *w, wedict_t *ent);
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qboolean World_TransformedTrace (struct model_s *model, int hulloverride, framestate_t *framestate, vec3_t start, vec3_t end, vec3_t mins, vec3_t maxs, qboolean capsule, struct trace_s *trace, vec3_t origin, vec3_t angles, unsigned int hitcontentsmask);
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/*
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World_Move:
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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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*/
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trace_t World_Move (world_t *w, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, int type, wedict_t *passedict);
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#ifdef Q2SERVER
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typedef struct q2edict_s q2edict_t;
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void VARGS WorldQ2_LinkEdict(world_t *w, q2edict_t *ent);
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void VARGS WorldQ2_UnlinkEdict(world_t *w, q2edict_t *ent);
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int VARGS WorldQ2_AreaEdicts (world_t *w, vec3_t mins, vec3_t maxs, q2edict_t **list,
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int maxcount, int areatype);
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trace_t WorldQ2_Move (world_t *w, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, int hitcontentsmask, q2edict_t *passedict);
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#endif
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#if defined(Q2BSPS) || defined(Q3BSPS)
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unsigned int Q23BSP_FatPVS(model_t *mod, vec3_t org, pvsbuffer_t *buffer, qboolean merge);
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qboolean Q23BSP_EdictInFatPVS(model_t *mod, struct pvscache_s *ent, qbyte *pvs);
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void Q23BSP_FindTouchedLeafs(model_t *mod, struct pvscache_s *ent, float *mins, float *maxs);
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#endif
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/*sv_move.c*/
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#if defined(CSQC_DAT) || !defined(CLIENTONLY)
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qboolean World_CheckBottom (world_t *world, wedict_t *ent, vec3_t up);
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qboolean World_movestep (world_t *world, wedict_t *ent, vec3_t move, vec3_t axis[3], qboolean relink, qboolean noenemy, void (*set_move_trace)(pubprogfuncs_t *prinst, trace_t *trace));
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qboolean World_MoveToGoal (world_t *world, wedict_t *ent, float dist);
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qboolean World_GetEntGravityAxis(wedict_t *ent, vec3_t axis[3]);
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#endif
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//
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// sv_phys.c
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//
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void WPhys_Init(void);
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void World_Physics_Frame(world_t *w);
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void SV_SetMoveVars(void);
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void WPhys_RunNewmis (world_t *w);
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qboolean SV_Physics (void);
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void WPhys_CheckVelocity (world_t *w, wedict_t *ent);
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trace_t WPhys_Trace_Toss (world_t *w, wedict_t *ent, wedict_t *ignore);
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void SV_ProgStartFrame (void);
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void WPhys_RunEntity (world_t *w, wedict_t *ent);
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qboolean WPhys_RunThink (world_t *w, wedict_t *ent);
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