3 #include "cl_collision.h"
5 float CL_SelectTraceLine(const vec3_t start, const vec3_t end, vec3_t impact, vec3_t normal, int *hitent, entity_render_t *ignoreent)
7 float maxfrac, maxrealfrac;
10 float tracemins[3], tracemaxs[3];
12 float tempnormal[3], starttransformed[3], endtransformed[3];
14 memset (&trace, 0 , sizeof(trace_t));
16 trace.realfraction = 1;
17 VectorCopy (end, trace.endpos);
21 if (cl.worldmodel && cl.worldmodel->TraceBox)
22 cl.worldmodel->TraceBox(cl.worldmodel, 0, &trace, start, vec3_origin, vec3_origin, end, SUPERCONTENTS_SOLID);
25 VectorCopy(trace.plane.normal, normal);
26 maxfrac = trace.fraction;
27 maxrealfrac = trace.realfraction;
29 tracemins[0] = min(start[0], end[0]);
30 tracemaxs[0] = max(start[0], end[0]);
31 tracemins[1] = min(start[1], end[1]);
32 tracemaxs[1] = max(start[1], end[1]);
33 tracemins[2] = min(start[2], end[2]);
34 tracemaxs[2] = max(start[2], end[2]);
36 // look for embedded bmodels
37 for (n = 0;n < cl.num_entities;n++)
39 if (!cl.entities_active[n])
41 ent = &cl.entities[n].render;
42 if (!BoxesOverlap(ent->mins, ent->maxs, tracemins, tracemaxs))
44 if (!ent->model || !ent->model->TraceBox)
46 if ((ent->flags & RENDER_EXTERIORMODEL) && !chase_active.integer)
48 // if transparent and not selectable, skip entity
49 if (!(cl.entities[n].state_current.effects & EF_SELECTABLE) && (ent->alpha < 1 || (ent->effects & (EF_ADDITIVE | EF_NODEPTHTEST))))
53 Matrix4x4_Transform(&ent->inversematrix, start, starttransformed);
54 Matrix4x4_Transform(&ent->inversematrix, end, endtransformed);
56 //if (ent->model && ent->model->TraceBox)
57 ent->model->TraceBox(ent->model, ent->frameblend[0].frame, &trace, starttransformed, vec3_origin, vec3_origin, endtransformed, SUPERCONTENTS_SOLID);
59 if (maxrealfrac > trace.realfraction)
63 maxfrac = trace.fraction;
64 maxrealfrac = trace.realfraction;
67 VectorCopy(trace.plane.normal, tempnormal);
68 Matrix4x4_Transform3x3(&ent->matrix, tempnormal, normal);
72 maxfrac = bound(0, maxfrac, 1);
73 maxrealfrac = bound(0, maxrealfrac, 1);
74 //if (maxfrac < 0 || maxfrac > 1) Con_Printf("fraction out of bounds %f %s:%d\n", maxfrac, __FILE__, __LINE__);
76 VectorLerp(start, maxfrac, end, impact);
80 void CL_FindNonSolidLocation(const vec3_t in, vec3_t out, vec_t radius)
82 // FIXME: check multiple brush models
83 if (cl.worldmodel && cl.worldmodel->brush.FindNonSolidLocation)
84 cl.worldmodel->brush.FindNonSolidLocation(cl.worldmodel, in, out, radius);
87 model_t *CL_GetModelByIndex(int modelindex)
93 modelindex = -(modelindex+1);
94 if (modelindex < MAX_MODELS)
95 return cl.csqc_model_precache[modelindex];
99 if(modelindex < MAX_MODELS)
100 return cl.model_precache[modelindex];
105 model_t *CL_GetModelFromEdict(prvm_edict_t *ed)
107 if (!ed || ed->priv.server->free)
109 return CL_GetModelByIndex((int)ed->fields.client->modelindex);
112 void CL_LinkEdict(prvm_edict_t *ent)
114 if (ent == prog->edicts)
115 return; // don't add the world
117 if (ent->priv.server->free)
120 VectorAdd(ent->fields.client->origin, ent->fields.client->mins, ent->fields.client->absmin);
121 VectorAdd(ent->fields.client->origin, ent->fields.client->maxs, ent->fields.client->absmax);
123 World_LinkEdict(&cl.world, ent, ent->fields.client->absmin, ent->fields.client->absmax);
126 int CL_GenericHitSuperContentsMask(const prvm_edict_t *passedict)
131 val = PRVM_EDICTFIELDVALUE(passedict, prog->fieldoffsets.dphitcontentsmask);
132 if (val && val->_float)
133 return (int)val->_float;
134 else if (passedict->fields.client->solid == SOLID_SLIDEBOX)
136 if ((int)passedict->fields.client->flags & FL_MONSTER)
137 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_MONSTERCLIP;
139 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_PLAYERCLIP;
141 else if (passedict->fields.client->solid == SOLID_CORPSE)
142 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
144 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
147 return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
155 extern cvar_t sv_debugmove;
156 trace_t CL_Move(const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict, int hitsupercontentsmask, qboolean hitnetworkbrushmodels, qboolean hitnetworkplayers, int *hitnetworkentity, qboolean hitcsqcentities)
158 vec3_t hullmins, hullmaxs;
162 prvm_edict_t *traceowner, *touch;
164 // bounding box of entire move area
165 vec3_t clipboxmins, clipboxmaxs;
166 // size of the moving object
167 vec3_t clipmins, clipmaxs;
168 // size when clipping against monsters
169 vec3_t clipmins2, clipmaxs2;
170 // start and end origin of move
171 vec3_t clipstart, clipend;
174 // matrices to transform into/out of other entity's space
175 matrix4x4_t matrix, imatrix;
176 // model of other entity
178 // list of entities to test for collisions
180 prvm_edict_t *touchedicts[MAX_EDICTS];
182 if (hitnetworkentity)
183 *hitnetworkentity = 0;
185 VectorCopy(start, clipstart);
186 VectorCopy(end, clipend);
187 VectorCopy(mins, clipmins);
188 VectorCopy(maxs, clipmaxs);
189 VectorCopy(mins, clipmins2);
190 VectorCopy(maxs, clipmaxs2);
191 #if COLLISIONPARANOID >= 3
192 Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
196 Collision_ClipToWorld(&cliptrace, cl.worldmodel, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask);
197 cliptrace.bmodelstartsolid = cliptrace.startsolid;
198 if (cliptrace.startsolid || cliptrace.fraction < 1)
199 cliptrace.ent = prog ? prog->edicts : NULL;
200 if (type == MOVE_WORLDONLY)
203 if (type == MOVE_MISSILE)
205 // LordHavoc: modified this, was = -15, now -= 15
206 for (i = 0;i < 3;i++)
213 // get adjusted box for bmodel collisions if the world is q1bsp or hlbsp
214 if (cl.worldmodel && cl.worldmodel->brush.RoundUpToHullSize)
215 cl.worldmodel->brush.RoundUpToHullSize(cl.worldmodel, clipmins, clipmaxs, hullmins, hullmaxs);
218 VectorCopy(clipmins, hullmins);
219 VectorCopy(clipmaxs, hullmaxs);
222 // create the bounding box of the entire move
223 for (i = 0;i < 3;i++)
225 clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + min(hullmins[i], clipmins2[i]) - 1;
226 clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + max(hullmaxs[i], clipmaxs2[i]) + 1;
229 // debug override to test against everything
230 if (sv_debugmove.integer)
232 clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = -999999999;
233 clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] = 999999999;
236 // if the passedict is world, make it NULL (to avoid two checks each time)
237 // this checks prog because this function is often called without a CSQC
239 if (prog == NULL || passedict == prog->edicts)
241 // precalculate prog value for passedict for comparisons
242 passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
243 // figure out whether this is a point trace for comparisons
244 pointtrace = VectorCompare(clipmins, clipmaxs);
245 // precalculate passedict's owner edict pointer for comparisons
246 traceowner = passedict ? PRVM_PROG_TO_EDICT(passedict->fields.client->owner) : 0;
248 // collide against network entities
249 if (hitnetworkbrushmodels)
251 for (i = 0;i < cl.num_brushmodel_entities;i++)
253 entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
254 if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
256 Collision_ClipToGenericEntity(&trace, ent->model, ent->frame, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, mins, maxs, end, hitsupercontentsmask);
257 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
258 *hitnetworkentity = cl.brushmodel_entities[i];
259 Collision_CombineTraces(&cliptrace, &trace, NULL, true);
263 // collide against player entities
264 if (hitnetworkplayers)
266 vec3_t origin, entmins, entmaxs;
267 matrix4x4_t entmatrix, entinversematrix;
268 for (i = 1;i < cl.maxclients+1;i++)
270 entity_render_t *ent = &cl.entities[i].render;
271 // don't hit ourselves
272 if (i == cl.playerentity)
274 Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
275 VectorAdd(origin, cl.playerstandmins, entmins);
276 VectorAdd(origin, cl.playerstandmaxs, entmaxs);
277 if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
279 Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
280 Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
281 Collision_ClipToGenericEntity(&trace, NULL, 0, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, mins, maxs, end, hitsupercontentsmask);
282 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
283 *hitnetworkentity = i;
284 Collision_CombineTraces(&cliptrace, &trace, NULL, false);
289 // because this uses World_EntitiestoBox, we know all entity boxes overlap
290 // the clip region, so we can skip culling checks in the loop below
291 // note: if prog is NULL then there won't be any linked entities
293 if (hitcsqcentities && prog != NULL)
295 numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
296 if (numtouchedicts > MAX_EDICTS)
298 // this never happens
299 Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
300 numtouchedicts = MAX_EDICTS;
303 for (i = 0;i < numtouchedicts;i++)
305 touch = touchedicts[i];
307 if (touch->fields.client->solid < SOLID_BBOX)
309 if (type == MOVE_NOMONSTERS && touch->fields.client->solid != SOLID_BSP)
314 // don't clip against self
315 if (passedict == touch)
317 // don't clip owned entities against owner
318 if (traceowner == touch)
320 // don't clip owner against owned entities
321 if (passedictprog == touch->fields.client->owner)
323 // don't clip points against points (they can't collide)
324 if (pointtrace && VectorCompare(touch->fields.client->mins, touch->fields.client->maxs) && (type != MOVE_MISSILE || !((int)touch->fields.client->flags & FL_MONSTER)))
328 // might interact, so do an exact clip
330 if ((int) touch->fields.client->solid == SOLID_BSP || type == MOVE_HITMODEL)
332 unsigned int modelindex = (unsigned int)touch->fields.client->modelindex;
333 // if the modelindex is 0, it shouldn't be SOLID_BSP!
334 if (modelindex > 0 && modelindex < MAX_MODELS)
335 model = CL_GetModelByIndex((int)touch->fields.client->modelindex);
336 Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2], touch->fields.client->angles[0], touch->fields.client->angles[1], touch->fields.client->angles[2], 1);
339 Matrix4x4_CreateTranslate(&matrix, touch->fields.client->origin[0], touch->fields.client->origin[1], touch->fields.client->origin[2]);
340 Matrix4x4_Invert_Simple(&imatrix, &matrix);
341 if ((int)touch->fields.client->flags & FL_MONSTER)
342 Collision_ClipToGenericEntity(&trace, model, touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, SUPERCONTENTS_BODY, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask);
344 Collision_ClipToGenericEntity(&trace, model, touch->fields.client->frame, touch->fields.client->mins, touch->fields.client->maxs, SUPERCONTENTS_BODY, &matrix, &imatrix, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask);
345 if (cliptrace.realfraction > trace.realfraction && hitnetworkentity)
346 *hitnetworkentity = 0;
347 Collision_CombineTraces(&cliptrace, &trace, (void *)touch, touch->fields.client->solid == SOLID_BSP);