entities never clip against themselves, or their owner
-line of sight checks trace->crosscontent, but bullets don't
+line of sight checks trace->inopen and trace->inwater, but bullets don't
*/
{
Cvar_RegisterVariable(&sv_useareanodes);
Cvar_RegisterVariable(&sv_polygoncollisions);
- Collision_Init ();
+ Collision_Init();
}
+typedef struct
+{
+ // bounding box of entire move area
+ vec3_t boxmins, boxmaxs;
+
+ // size of the moving object
+ vec3_t mins, maxs;
+
+ // size when clipping against monsters
+ vec3_t mins2, maxs2;
+
+ // size when clipping against brush models
+ vec3_t hullmins, hullmaxs;
-void ClearLink (link_t *l);
-void RemoveLink (link_t *l);
-void InsertLinkBefore (link_t *l, link_t *before);
-void InsertLinkAfter (link_t *l, link_t *after);
+ // start and end origin of move
+ vec3_t start, end;
-#define EDICT_FROM_AREA(l) ((edict_t *)((qbyte *)l - (int)&(((edict_t *)0)->area)))
+ // trace results
+ trace_t trace;
+
+ // type of move (like ignoring monsters, or similar)
+ int type;
+
+ // the edict that is moving (if any)
+ edict_t *passedict;
+}
+moveclip_t;
+
+//#define EDICT_FROM_AREA(l) ((edict_t *)((qbyte *)l - (int)&(((edict_t *)0)->area)))
+#define EDICT_FROM_AREA(l) ((edict_t *)l->entity)
//============================================================================
// ClearLink is used for new headnodes
void ClearLink (link_t *l)
{
+ l->entity = NULL;
l->prev = l->next = l;
}
l->prev->next = l->next;
}
-void InsertLinkBefore (link_t *l, link_t *before)
+void InsertLinkBefore (link_t *l, link_t *before, void *ent)
{
+ l->entity = ent;
l->next = before;
l->prev = before->prev;
l->prev->next = l;
l->next->prev = l;
}
+
void InsertLinkAfter (link_t *l, link_t *after)
{
l->next = after->next;
}
-typedef struct
-{
- // bounding box of entire move area
- vec3_t boxmins, boxmaxs;
-
- // size of the moving object
- vec3_t mins, maxs;
-
- // size when clipping against monsters
- vec3_t mins2, maxs2;
-
- // size when clipping against brush models
- vec3_t hullmins, hullmaxs;
-
- // start and end origin of move
- vec3_t start, end;
-
- // trace results
- trace_t trace;
-
- // type of move (like ignoring monsters, or similar)
- int type;
-
- // the edict that is moving (if any)
- edict_t *passedict;
-}
-moveclip_t;
-
-
/*
===============================================================================
typedef struct areanode_s
{
- int axis; // -1 = leaf node
- float dist;
- struct areanode_s *children[2];
- link_t trigger_edicts;
- link_t solid_edicts;
-} areanode_t;
+ // -1 = leaf node
+ int axis;
+ float dist;
+ struct areanode_s *children[2];
+ link_t trigger_edicts;
+ link_t solid_edicts;
+}
+areanode_t;
-#define AREA_DEPTH 10
-#define AREA_NODES (1 << (AREA_DEPTH + 1))
+#define AREA_DEPTH 1
+#define AREA_NODES (1 << (AREA_DEPTH + 1))
-static areanode_t sv_areanodes[AREA_NODES];
-static int sv_numareanodes;
+static areanode_t sv_areanodes[AREA_NODES];
+static int sv_numareanodes;
/*
===============
*/
areanode_t *SV_CreateAreaNode (int depth, vec3_t mins, vec3_t maxs)
{
- areanode_t *anode;
- vec3_t size;
- vec3_t mins1, maxs1, mins2, maxs2;
+ areanode_t *anode;
+ vec3_t size, mins1, maxs1, mins2, maxs2;
anode = &sv_areanodes[sv_numareanodes];
sv_numareanodes++;
return anode;
}
+typedef struct areagrid_s
+{
+ link_t trigger_edicts;
+ link_t solid_edicts;
+}
+areagrid_t;
+
+#define AREA_GRID 32
+#define AREA_GRIDNODES (AREA_GRID * AREA_GRID)
+
+static areagrid_t sv_areagrid[AREA_GRIDNODES];
+static vec3_t sv_areagridbias, sv_areagridscale;
+
+void SV_CreateAreaGrid (vec3_t mins, vec3_t maxs)
+{
+ int i;
+ VectorNegate(mins, sv_areagridbias);
+ sv_areagridscale[0] = AREA_GRID / (maxs[0] + sv_areagridbias[0]);
+ sv_areagridscale[1] = AREA_GRID / (maxs[1] + sv_areagridbias[1]);
+ sv_areagridscale[2] = AREA_GRID / (maxs[2] + sv_areagridbias[2]);
+ for (i = 0;i < AREA_GRIDNODES;i++)
+ {
+ ClearLink (&sv_areagrid[i].trigger_edicts);
+ ClearLink (&sv_areagrid[i].solid_edicts);
+ }
+}
+
/*
===============
SV_ClearWorld
*/
void SV_ClearWorld (void)
{
- memset (sv_areanodes, 0, sizeof(sv_areanodes));
+ memset(sv_areanodes, 0, sizeof(sv_areanodes));
sv_numareanodes = 0;
Mod_CheckLoaded(sv.worldmodel);
- SV_CreateAreaNode (0, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
+ SV_CreateAreaNode(0, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
+ SV_CreateAreaGrid(sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
}
*/
void SV_UnlinkEdict (edict_t *ent)
{
- if (!ent->area.prev)
- return; // not linked in anywhere
- RemoveLink (&ent->area);
- ent->area.prev = ent->area.next = NULL;
+ int i;
+ for (i = 0;i < ENTITYGRIDAREAS;i++)
+ {
+ if (ent->areagrid[i].prev)
+ {
+ RemoveLink (&ent->areagrid[i]);
+ ent->areagrid[i].prev = ent->areagrid[i].next = NULL;
+ }
+ }
+ if (ent->area.prev)
+ {
+ RemoveLink (&ent->area);
+ ent->area.prev = ent->area.next = NULL;
+ }
}
/*
====================
-SV_TouchLinks
+SV_TouchAreaNodes
====================
*/
-void SV_TouchLinks ( edict_t *ent, areanode_t *node )
+void SV_TouchAreaNodes ( edict_t *ent, areanode_t *node )
{
- link_t *l, *next;
- edict_t *touch;
- int old_self, old_other;
+ link_t *l, *next;
+ edict_t *touch;
+ int old_self, old_other;
loc0:
// touch linked edicts
if (ent->v->absmax[node->axis] > node->dist)
{
if (ent->v->absmin[node->axis] < node->dist)
- SV_TouchLinks(ent, node->children[1]); // order reversed to reduce code
+ SV_TouchAreaNodes(ent, node->children[1]); // order reversed to reduce code
node = node->children[0];
goto loc0;
}
}
}
+void SV_TouchAreaGrid(edict_t *ent, areanode_t *node)
+{
+ link_t *l, *next;
+ edict_t *touch;
+ areagrid_t *grid;
+ int old_self, old_other, igrid[3], igridmins[3], igridmaxs[3];
+
+ igridmins[0] = (int) ((ent->v->absmin[0] + sv_areagridbias[0]) * sv_areagridscale[0]);
+ igridmins[1] = (int) ((ent->v->absmin[1] + sv_areagridbias[1]) * sv_areagridscale[1]);
+ //igridmins[2] = (int) ((ent->v->absmin[2] + sv_areagridbias[2]) * sv_areagridscale[2]);
+ igridmaxs[0] = (int) ((ent->v->absmax[0] + sv_areagridbias[0]) * sv_areagridscale[0]) + 1;
+ igridmaxs[1] = (int) ((ent->v->absmax[1] + sv_areagridbias[1]) * sv_areagridscale[1]) + 1;
+ //igridmaxs[2] = (int) ((ent->v->absmax[2] + sv_areagridbias[2]) * sv_areagridscale[2]) + 1;
+ igridmins[0] = max(0, igridmins[0]);
+ igridmins[1] = max(0, igridmins[1]);
+ //igridmins[2] = max(0, igridmins[2]);
+ igridmaxs[0] = min(AREA_GRID, igridmaxs[0]);
+ igridmaxs[1] = min(AREA_GRID, igridmaxs[1]);
+ //igridmaxs[2] = min(AREA_GRID, igridmaxs[2]);
+
+ for (igrid[1] = igridmins[1];igrid[1] < igridmaxs[1];igrid[1]++)
+ {
+ grid = sv_areagrid + igrid[1] * AREA_GRID + igridmins[0];
+ for (igrid[0] = igridmins[0];igrid[0] < igridmaxs[0];igrid[0]++, grid++)
+ {
+ for (l = grid->trigger_edicts.next;l != &grid->trigger_edicts;l = next)
+ {
+ next = l->next;
+ touch = EDICT_FROM_AREA(l);
+ if (touch == ent)
+ continue;
+ if (!touch->v->touch || touch->v->solid != SOLID_TRIGGER)
+ continue;
+ if (ent->v->absmin[0] > touch->v->absmax[0]
+ || ent->v->absmin[1] > touch->v->absmax[1]
+ || ent->v->absmin[2] > touch->v->absmax[2]
+ || ent->v->absmax[0] < touch->v->absmin[0]
+ || ent->v->absmax[1] < touch->v->absmin[1]
+ || ent->v->absmax[2] < touch->v->absmin[2])
+ continue;
+ old_self = pr_global_struct->self;
+ old_other = pr_global_struct->other;
+
+ pr_global_struct->self = EDICT_TO_PROG(touch);
+ pr_global_struct->other = EDICT_TO_PROG(ent);
+ pr_global_struct->time = sv.time;
+ PR_ExecuteProgram (touch->v->touch, "");
+
+ pr_global_struct->self = old_self;
+ pr_global_struct->other = old_other;
+ }
+ }
+ }
+}
+
+void SV_LinkEdict_AreaNode(edict_t *ent)
+{
+ areanode_t *node;
+ // find the first node that the ent's box crosses
+ node = sv_areanodes;
+ while (1)
+ {
+ if (node->axis == -1)
+ break;
+ if (ent->v->absmin[node->axis] > node->dist)
+ node = node->children[0];
+ else if (ent->v->absmax[node->axis] < node->dist)
+ node = node->children[1];
+ else
+ break; // crosses the node
+ }
+
+ // link it in
+
+ if (ent->v->solid == SOLID_TRIGGER)
+ InsertLinkBefore (&ent->area, &node->trigger_edicts, ent);
+ else
+ InsertLinkBefore (&ent->area, &node->solid_edicts, ent);
+}
+
+int SV_LinkEdict_AreaGrid(edict_t *ent)
+{
+ areagrid_t *grid;
+ int igrid[3], igridmins[3], igridmaxs[3], gridnum;
+
+ igridmins[0] = (int) ((ent->v->absmin[0] + sv_areagridbias[0]) * sv_areagridscale[0]);
+ igridmins[1] = (int) ((ent->v->absmin[1] + sv_areagridbias[1]) * sv_areagridscale[1]);
+ //igridmins[2] = (int) ((ent->v->absmin[2] + sv_areagridbias[2]) * sv_areagridscale[2]);
+ igridmaxs[0] = (int) ((ent->v->absmax[0] + sv_areagridbias[0]) * sv_areagridscale[0]) + 1;
+ igridmaxs[1] = (int) ((ent->v->absmax[1] + sv_areagridbias[1]) * sv_areagridscale[1]) + 1;
+ //igridmaxs[2] = (int) ((ent->v->absmax[2] + sv_areagridbias[2]) * sv_areagridscale[2]) + 1;
+ if (igridmins[0] < 0 || igridmaxs[0] > AREA_GRID || igridmins[1] < 0 || igridmaxs[1] > AREA_GRID || ((igridmaxs[0] - igridmins[0]) * (igridmaxs[1] - igridmins[1])) > ENTITYGRIDAREAS)
+ return false;
+
+ gridnum = 0;
+ for (igrid[1] = igridmins[1];igrid[1] < igridmaxs[1];igrid[1]++)
+ {
+ grid = sv_areagrid + igrid[1] * AREA_GRID + igridmins[0];
+ for (igrid[0] = igridmins[0];igrid[0] < igridmaxs[0];igrid[0]++, grid++, gridnum++)
+ {
+ if (ent->v->solid == SOLID_TRIGGER)
+ InsertLinkBefore (&ent->areagrid[gridnum], &grid->trigger_edicts, ent);
+ else
+ InsertLinkBefore (&ent->areagrid[gridnum], &grid->solid_edicts, ent);
+ }
+ }
+ return true;
+}
/*
===============
*/
void SV_LinkEdict (edict_t *ent, qboolean touch_triggers)
{
- model_t *model;
- areanode_t *node;
+ model_t *model;
- if (ent->area.prev)
+ if (ent->area.prev || ent->areagrid[0].prev)
SV_UnlinkEdict (ent); // unlink from old position
if (ent == sv.edicts)
else
{
// SOLID_BSP with no model is valid, mainly because some QC setup code does so temporarily
- VectorAdd (ent->v->origin, ent->v->mins, ent->v->absmin);
- VectorAdd (ent->v->origin, ent->v->maxs, ent->v->absmax);
+ VectorAdd(ent->v->origin, ent->v->mins, ent->v->absmin);
+ VectorAdd(ent->v->origin, ent->v->maxs, ent->v->absmax);
}
}
else
{
- VectorAdd (ent->v->origin, ent->v->mins, ent->v->absmin);
- VectorAdd (ent->v->origin, ent->v->maxs, ent->v->absmax);
+ VectorAdd(ent->v->origin, ent->v->mins, ent->v->absmin);
+ VectorAdd(ent->v->origin, ent->v->maxs, ent->v->absmax);
}
//
if (ent->v->solid == SOLID_NOT)
return;
-// find the first node that the ent's box crosses
- node = sv_areanodes;
- while (1)
- {
- if (node->axis == -1)
- break;
- if (ent->v->absmin[node->axis] > node->dist)
- node = node->children[0];
- else if (ent->v->absmax[node->axis] < node->dist)
- node = node->children[1];
- else
- break; // crosses the node
- }
-
-// link it in
-
- if (ent->v->solid == SOLID_TRIGGER)
- InsertLinkBefore (&ent->area, &node->trigger_edicts);
- else
- InsertLinkBefore (&ent->area, &node->solid_edicts);
+ // try to link into areagrid, if that fails fall back on areanode
+ if (!SV_LinkEdict_AreaGrid(ent))
+ SV_LinkEdict_AreaNode(ent);
// if touch_triggers, touch all entities at this node and descend for more
if (touch_triggers)
- SV_TouchLinks ( ent, sv_areanodes );
+ {
+ SV_TouchAreaNodes(ent, sv_areanodes);
+ SV_TouchAreaGrid(ent, sv_areanodes);
+ }
}
/*
====================
-SV_ClipToLinks
+SV_ClipToAreaNodes
Mins and maxs enclose the entire area swept by the move
====================
*/
-void SV_ClipToLinks ( areanode_t *node, moveclip_t *clip )
+void SV_ClipToAreaNodes ( areanode_t *node, moveclip_t *clip )
{
- link_t *l, *next;
- edict_t *touch;
- trace_t trace;
+ link_t *l, *next;
+ edict_t *touch;
+ trace_t trace;
loc0:
if (clip->trace.allsolid)
if (clip->boxmaxs[node->axis] > node->dist)
{
if (clip->boxmins[node->axis] < node->dist)
- SV_ClipToLinks(node->children[1], clip);
+ SV_ClipToAreaNodes(node->children[1], clip);
node = node->children[0];
goto loc0;
}
}
}
+/*
+====================
+SV_ClipToAreaGrid
+
+Mins and maxs enclose the entire area swept by the move
+====================
+*/
+void SV_ClipToAreaGrid(moveclip_t *clip)
+{
+ link_t *l, *next;
+ edict_t *touch;
+ areagrid_t *grid;
+ int igrid[3], igridmins[3], igridmaxs[3];
+ trace_t trace;
+
+ if (clip->trace.allsolid)
+ return;
+
+ igridmins[0] = (int) ((clip->boxmins[0] + sv_areagridbias[0]) * sv_areagridscale[0]);
+ igridmins[1] = (int) ((clip->boxmins[1] + sv_areagridbias[1]) * sv_areagridscale[1]);
+ //igridmins[2] = (int) ((clip->boxmins[2] + sv_areagridbias[2]) * sv_areagridscale[2]);
+ igridmaxs[0] = (int) ((clip->boxmaxs[0] + sv_areagridbias[0]) * sv_areagridscale[0]) + 1;
+ igridmaxs[1] = (int) ((clip->boxmaxs[1] + sv_areagridbias[1]) * sv_areagridscale[1]) + 1;
+ //igridmaxs[2] = (int) ((clip->boxmaxs[2] + sv_areagridbias[2]) * sv_areagridscale[2]) + 1;
+ igridmins[0] = max(0, igridmins[0]);
+ igridmins[1] = max(0, igridmins[1]);
+ //igridmins[2] = max(0, igridmins[2]);
+ igridmaxs[0] = min(AREA_GRID, igridmaxs[0]);
+ igridmaxs[1] = min(AREA_GRID, igridmaxs[1]);
+ //igridmaxs[2] = min(AREA_GRID, igridmaxs[2]);
+
+ for (igrid[1] = igridmins[1];igrid[1] < igridmaxs[1];igrid[1]++)
+ {
+ grid = sv_areagrid + igrid[1] * AREA_GRID + igridmins[0];
+ for (igrid[0] = igridmins[0];igrid[0] < igridmaxs[0];igrid[0]++, grid++)
+ {
+ for (l = grid->solid_edicts.next;l != &grid->solid_edicts;l = next)
+ {
+ next = l->next;
+ touch = EDICT_FROM_AREA(l);
+ if (touch->v->solid == SOLID_NOT)
+ continue;
+ if (touch == clip->passedict)
+ continue;
+ if (touch->v->solid == SOLID_TRIGGER)
+ {
+ ED_Print(touch);
+ Host_Error ("Trigger in clipping list");
+ }
+
+ if (clip->type == MOVE_NOMONSTERS && touch->v->solid != SOLID_BSP)
+ continue;
+
+ if (clip->boxmins[0] > touch->v->absmax[0]
+ || clip->boxmaxs[0] < touch->v->absmin[0]
+ || clip->boxmins[1] > touch->v->absmax[1]
+ || clip->boxmaxs[1] < touch->v->absmin[1]
+ || clip->boxmins[2] > touch->v->absmax[2]
+ || clip->boxmaxs[2] < touch->v->absmin[2])
+ continue;
+
+ if (clip->passedict)
+ {
+ if (clip->passedict->v->size[0] && !touch->v->size[0])
+ continue; // points never interact
+ if (PROG_TO_EDICT(touch->v->owner) == clip->passedict)
+ continue; // don't clip against own missiles
+ if (PROG_TO_EDICT(clip->passedict->v->owner) == touch)
+ continue; // don't clip against owner
+ // LordHavoc: corpse code
+ if (clip->passedict->v->solid == SOLID_CORPSE && (touch->v->solid == SOLID_SLIDEBOX || touch->v->solid == SOLID_CORPSE))
+ continue;
+ if (clip->passedict->v->solid == SOLID_SLIDEBOX && touch->v->solid == SOLID_CORPSE)
+ continue;
+ }
+
+ // might interact, so do an exact clip
+ if (touch->v->solid == SOLID_BSP)
+ trace = SV_ClipMoveToEntity (touch, clip->start, clip->hullmins, clip->hullmaxs, clip->end);
+ else if ((int)touch->v->flags & FL_MONSTER)
+ trace = SV_ClipMoveToEntity (touch, clip->start, clip->mins2, clip->maxs2, clip->end);
+ else
+ trace = SV_ClipMoveToEntity (touch, clip->start, clip->mins, clip->maxs, clip->end);
+ // LordHavoc: take the 'best' answers from the new trace and combine with existing data
+ if (trace.allsolid)
+ clip->trace.allsolid = true;
+ if (trace.startsolid)
+ {
+ clip->trace.startsolid = true;
+ if (!clip->trace.ent)
+ clip->trace.ent = trace.ent;
+ }
+ if (trace.inopen)
+ clip->trace.inopen = true;
+ if (trace.inwater)
+ clip->trace.inwater = true;
+ if (trace.fraction < clip->trace.fraction)
+ {
+ clip->trace.fraction = trace.fraction;
+ VectorCopy(trace.endpos, clip->trace.endpos);
+ clip->trace.plane = trace.plane;
+ clip->trace.endcontents = trace.endcontents;
+ clip->trace.ent = trace.ent;
+ }
+ if (clip->trace.allsolid)
+ return;
+ }
+ }
+ }
+}
+
/*
==================
// create the bounding box of the entire move
SV_MoveBounds ( start, bigmins, bigmaxs, end, clip.boxmins, clip.boxmaxs );
- SV_ClipToLinks ( sv_areanodes, &clip );
+ SV_ClipToAreaNodes(sv_areanodes, &clip);
+ SV_ClipToAreaGrid(&clip);
return clip.trace;
}
projects / xonotic / darkplaces.git / commitdiff