cl_collision.h File Reference

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Macros
#define	CL_PointSuperContents(point)

Functions
trace_t	CL_Cache_TraceLineSurfaces (const vec3_t start, const vec3_t end, int type, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
void	CL_FindNonSolidLocation (const vec3_t in, vec3_t out, vec_t radius)
int	CL_GenericHitSuperContentsMask (const prvm_edict_t *edict)
model_t *	CL_GetModelByIndex (int modelindex)
model_t *	CL_GetModelFromEdict (prvm_edict_t *ed)
void	CL_LinkEdict (prvm_edict_t *ent)
float	CL_SelectTraceLine (const vec3_t start, const vec3_t end, vec3_t impact, vec3_t normal, int *hitent, entity_render_t *ignoreent)
trace_t	CL_TraceBox (const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int type, prvm_edict_t *passedict, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, float extend, qbool hitnetworkbrushmodels, qbool hitnetworkplayers, int *hitnetworkentity, qbool hitcsqcentities)
trace_t	CL_TraceLine (const vec3_t start, const vec3_t end, int type, prvm_edict_t *passedict, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, float extend, qbool hitnetworkbrushmodels, qbool hitnetworkplayers, int *hitnetworkentity, qbool hitcsqcentities, qbool hitsurfaces)
trace_t	CL_TracePoint (const vec3_t start, int type, prvm_edict_t *passedict, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, qbool hitnetworkbrushmodels, qbool hitnetworkplayers, int *hitnetworkentity, qbool hitcsqcentities)

Macro Definition Documentation

CL_PointSuperContents

#define CL_PointSuperContents

(

point

)

Value:

(CL_TracePoint((point), sv_gameplayfix_swiminbmodels.integer ? MOVE_NOMONSTERS : MOVE_WORLDONLY, NULL, 0, 0, 0, true, false, NULL, false).startsupercontents)

Definition at line 17 of file cl_collision.h.

Referenced by CL_CheckBottom(), CL_movestep(), CL_NewParticlesFromEffectinfo(), CL_ParticleEffect_Fallback(), CL_ParticleExplosion(), R_DrawParticles(), V_CalcViewBlend(), VM_CL_checkbottom(), and VM_CL_pointcontents().

Function Documentation

CL_Cache_TraceLineSurfaces()

trace_t CL_Cache_TraceLineSurfaces	(	const vec3_t	start,
		const vec3_t	end,
		int	type,
		int	hitsupercontentsmask,
		int	skipsupercontentsmask,
		int	skipmaterialflagsmask )

Definition at line 902 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    int i;
    prvm_edict_t *touch;
    trace_t trace;
    // bounding box of entire move area
    vec3_t clipboxmins, clipboxmaxs;
    // start and end origin of move
    vec3_t clipstart, clipend;
    // trace results
    trace_t cliptrace;
    // matrices to transform into/out of other entity's space
    matrix4x4_t matrix, imatrix;
    // model of other entity
    model_t *model;
    // list of entities to test for collisions
    int numtouchedicts;
    static prvm_edict_t *touchedicts[MAX_EDICTS];
 
    VectorCopy(start, clipstart);
    VectorCopy(end, clipend);
#if COLLISIONPARANOID >= 3
    Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
#endif
 
    // clip to world
    Collision_Cache_ClipLineToWorldSurfaces(&cliptrace, cl.worldmodel, clipstart, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
    cliptrace.worldstartsolid = cliptrace.bmodelstartsolid = cliptrace.startsolid;
    if (cliptrace.startsolid || cliptrace.fraction < 1)
        cliptrace.ent = prog ? prog->edicts : NULL;
    if (type == MOVE_WORLDONLY)
        goto finished;
 
    // create the bounding box of the entire move
    for (i = 0;i < 3;i++)
    {
        clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) - 1;
        clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + 1;
    }
 
    // if the passedict is world, make it NULL (to avoid two checks each time)
    // this checks prog because this function is often called without a CSQC
    // VM context
 
    // collide against network entities
    for (i = 0;i < cl.num_brushmodel_entities;i++)
    {
        entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
        if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
            continue;
        Collision_Cache_ClipLineToGenericEntitySurfaces(&trace, ent->model, &ent->matrix, &ent->inversematrix, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
        Collision_CombineTraces(&cliptrace, &trace, NULL, true);
    }
 
    // clip to entities
    // because this uses World_EntitiestoBox, we know all entity boxes overlap
    // the clip region, so we can skip culling checks in the loop below
    // note: if prog is NULL then there won't be any linked entities
    numtouchedicts = 0;
    if (prog != NULL)
    {
        numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
        if (numtouchedicts > MAX_EDICTS)
        {
            // this never happens
            Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
            numtouchedicts = MAX_EDICTS;
        }
    }
    for (i = 0;i < numtouchedicts;i++)
    {
        touch = touchedicts[i];
        // might interact, so do an exact clip
        // only hit entity models, not collision shapes
        model = CL_GetModelFromEdict(touch);
        if (!model)
            continue;
        // animated models are not suitable for caching
        if ((touch->priv.server->frameblend[0].lerp != 1.0 || touch->priv.server->frameblend[0].subframe != 0) || touch->priv.server->skeleton.relativetransforms)
            continue;
        if (type == MOVE_NOMONSTERS && PRVM_clientedictfloat(touch, solid) != SOLID_BSP)
            continue;
        Matrix4x4_CreateFromQuakeEntity(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2], PRVM_clientedictvector(touch, angles)[0], PRVM_clientedictvector(touch, angles)[1], PRVM_clientedictvector(touch, angles)[2], 1);
        Matrix4x4_Invert_Simple(&imatrix, &matrix);
        Collision_Cache_ClipLineToGenericEntitySurfaces(&trace, model, &matrix, &imatrix, clipstart, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
        Collision_CombineTraces(&cliptrace, &trace, (void *)touch, PRVM_clientedictfloat(touch, solid) == SOLID_BSP);
    }
 
finished:
    return cliptrace;
}

References angles, trace_t::bmodelstartsolid, BoxesOverlap, client_state_t::brushmodel_entities, cl, CL_GetModelFromEdict(), CLVM_prog, Collision_Cache_ClipLineToGenericEntitySurfaces(), Collision_Cache_ClipLineToWorldSurfaces(), Collision_CombineTraces(), Con_Printf(), prvm_prog_t::edicts, trace_t::endpos, trace_t::ent, client_state_t::entities, trace_t::fraction, i, entity_render_t::inversematrix, entity_render_t::matrix, Matrix4x4_CreateFromQuakeEntity(), Matrix4x4_Invert_Simple(), max, MAX_EDICTS, entity_render_t::maxs, min, entity_render_t::mins, entity_render_t::model, model, MOVE_NOMONSTERS, MOVE_WORLDONLY, NULL, client_state_t::num_brushmodel_entities, origin, prvm_edict_t::priv, PRVM_clientedictfloat, PRVM_clientedictvector, entity_t::render, prvm_edict_t::server, solid, SOLID_BSP, trace_t::startsolid, type, VectorCopy, client_state_t::world, World_EntitiesInBox(), client_state_t::worldmodel, and trace_t::worldstartsolid.

Referenced by R_CanSeeBox(), R_DrawCorona(), and R_Shadow_BounceGrid_TracePhotons_Shot().

CL_FindNonSolidLocation()

void CL_FindNonSolidLocation	(	const vec3_t	in,
		vec3_t	out,
		vec_t	radius )

Definition at line 79 of file cl_collision.c.

{
    // FIXME: check multiple brush models
    if (cl.worldmodel && cl.worldmodel->brush.FindNonSolidLocation)
        cl.worldmodel->brush.FindNonSolidLocation(cl.worldmodel, in, out, radius);
}

CL_GenericHitSuperContentsMask()

int CL_GenericHitSuperContentsMask

(

const prvm_edict_t *

edict

)

Definition at line 175 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    if (passedict)
    {
        int dphitcontentsmask = (int)PRVM_clientedictfloat(passedict, dphitcontentsmask);
        if (dphitcontentsmask)
            return dphitcontentsmask;
        else if (PRVM_clientedictfloat(passedict, solid) == SOLID_SLIDEBOX)
        {
            if ((int)PRVM_clientedictfloat(passedict, flags) & FL_MONSTER)
                return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_MONSTERCLIP;
            else
                return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_PLAYERCLIP;
        }
        else if (PRVM_clientedictfloat(passedict, solid) == SOLID_CORPSE)
            return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
        else if (PRVM_clientedictfloat(passedict, solid) == SOLID_TRIGGER)
            return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY;
        else
            return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
    }
    else
        return SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_CORPSE;
}

References CLVM_prog, dphitcontentsmask, FL_MONSTER, flags, int(), PRVM_clientedictfloat, solid, SOLID_CORPSE, SOLID_SLIDEBOX, SOLID_TRIGGER, SUPERCONTENTS_BODY, SUPERCONTENTS_CORPSE, SUPERCONTENTS_MONSTERCLIP, SUPERCONTENTS_PLAYERCLIP, and SUPERCONTENTS_SOLID.

Referenced by CL_CheckBottom(), CL_movestep(), CL_Trace_Toss(), VM_CL_checkbottom(), VM_CL_droptofloor(), VM_CL_tracebox(), and VM_CL_traceline().

CL_GetModelByIndex()

model_t * CL_GetModelByIndex

(

int

modelindex

)

Definition at line 86 of file cl_collision.c.

{
    if(!modelindex)
        return NULL;
    if (modelindex < 0)
    {
        modelindex = -(modelindex+1);
        if (modelindex < MAX_MODELS)
            return cl.csqc_model_precache[modelindex];
    }
    else
    {
        if(modelindex < MAX_MODELS)
            return cl.model_precache[modelindex];
    }
    return NULL;
}

CL_GetModelFromEdict()

model_t * CL_GetModelFromEdict

(

prvm_edict_t *

ed

)

Definition at line 104 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    if (!ed || ed->free)
        return NULL;
    return CL_GetModelByIndex((int)PRVM_clientedictfloat(ed, modelindex));
}

References CL_GetModelByIndex(), CLVM_prog, prvm_edict_t::free, modelindex, NULL, and PRVM_clientedictfloat.

Referenced by CL_Cache_TraceLineSurfaces(), CL_GetEntityLocalTagMatrix(), CL_GetExtendedTagInfo(), CL_GetPitchSign(), CL_GetTagIndex(), CL_GetTagMatrix(), CL_TraceBox(), CL_TraceLine(), CL_TracePoint(), CL_VM_GetEntitySoundOrigin(), CSQC_AddRenderEdict(), getmodel(), VM_CL_gettagindex(), and VM_CL_gettaginfo().

CL_LinkEdict()

void CL_LinkEdict

(

prvm_edict_t *

ent

)

Definition at line 112 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    vec3_t mins, maxs;
 
    if (ent == prog->edicts)
        return;     // don't add the world
 
    if (ent->free)
        return;
 
    // set the abs box
 
    if (PRVM_clientedictfloat(ent, solid) == SOLID_BSP)
    {
        model_t *model = CL_GetModelByIndex( (int)PRVM_clientedictfloat(ent, modelindex) );
        if (model == NULL)
        {
            Con_Printf("edict %i: SOLID_BSP with invalid modelindex!\n", PRVM_NUM_FOR_EDICT(ent));
 
            model = CL_GetModelByIndex( 0 );
        }
 
        if( model != NULL )
        {
            if (!model->TraceBox)
                Con_DPrintf("edict %i: SOLID_BSP with non-collidable model\n", PRVM_NUM_FOR_EDICT(ent));
 
            if (PRVM_clientedictvector(ent, angles)[0] || PRVM_clientedictvector(ent, angles)[2] || PRVM_clientedictvector(ent, avelocity)[0] || PRVM_clientedictvector(ent, avelocity)[2])
            {
                VectorAdd(PRVM_clientedictvector(ent, origin), model->rotatedmins, mins);
                VectorAdd(PRVM_clientedictvector(ent, origin), model->rotatedmaxs, maxs);
            }
            else if (PRVM_clientedictvector(ent, angles)[1] || PRVM_clientedictvector(ent, avelocity)[1])
            {
                VectorAdd(PRVM_clientedictvector(ent, origin), model->yawmins, mins);
                VectorAdd(PRVM_clientedictvector(ent, origin), model->yawmaxs, maxs);
            }
            else
            {
                VectorAdd(PRVM_clientedictvector(ent, origin), model->normalmins, mins);
                VectorAdd(PRVM_clientedictvector(ent, origin), model->normalmaxs, maxs);
            }
        }
        else
        {
            // SOLID_BSP with no model is valid, mainly because some QC setup code does so temporarily
            VectorAdd(PRVM_clientedictvector(ent, origin), PRVM_clientedictvector(ent, mins), mins);
            VectorAdd(PRVM_clientedictvector(ent, origin), PRVM_clientedictvector(ent, maxs), maxs);
        }
    }
    else
    {
        VectorAdd(PRVM_clientedictvector(ent, origin), PRVM_clientedictvector(ent, mins), mins);
        VectorAdd(PRVM_clientedictvector(ent, origin), PRVM_clientedictvector(ent, maxs), maxs);
    }
 
    VectorCopy(mins, PRVM_clientedictvector(ent, absmin));
    VectorCopy(maxs, PRVM_clientedictvector(ent, absmax));
 
    World_LinkEdict(&cl.world, ent, mins, maxs, cl_areagrid_link_SOLID_NOT.integer);
}

References absmax, absmin, angles, avelocity, cl, cl_areagrid_link_SOLID_NOT, CL_GetModelByIndex(), CLVM_prog, Con_DPrintf(), Con_Printf(), prvm_prog_t::edicts, prvm_edict_t::free, cvar_t::integer, maxs, mins, model, modelindex, NULL, origin, PRVM_clientedictfloat, PRVM_clientedictvector, PRVM_NUM_FOR_EDICT, solid, SOLID_BSP, VectorAdd, VectorCopy, client_state_t::world, and World_LinkEdict().

Referenced by CL_movestep(), CLVM_end_increase_edicts(), SetMinMaxSizePRVM(), VM_CL_copyentity(), VM_CL_setorigin(), VM_CL_setsize(), and VM_nudgeoutofsolid().

CL_SelectTraceLine()

float CL_SelectTraceLine	(	const vec3_t	start,
		const vec3_t	end,
		vec3_t	impact,
		vec3_t	normal,
		int *	hitent,
		entity_render_t *	ignoreent )

Definition at line 5 of file cl_collision.c.

{
    float maxfrac;
    int n;
    entity_render_t *ent;
    vec_t tracemins[3], tracemaxs[3];
    trace_t trace;
    vec_t tempnormal[3], starttransformed[3], endtransformed[3];
 
    memset (&trace, 0 , sizeof(trace_t));
    trace.fraction = 1;
    VectorCopy (end, trace.endpos);
 
    if (hitent)
        *hitent = 0;
    if (cl.worldmodel && cl.worldmodel->TraceLine)
        cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, start, end, SUPERCONTENTS_SOLID, 0, 0);
 
    if (normal)
        VectorCopy(trace.plane.normal, normal);
    maxfrac = trace.fraction;
 
    tracemins[0] = min(start[0], end[0]);
    tracemaxs[0] = max(start[0], end[0]);
    tracemins[1] = min(start[1], end[1]);
    tracemaxs[1] = max(start[1], end[1]);
    tracemins[2] = min(start[2], end[2]);
    tracemaxs[2] = max(start[2], end[2]);
 
    // look for embedded bmodels
    for (n = 0;n < cl.num_entities;n++)
    {
        if (!cl.entities_active[n])
            continue;
        ent = &cl.entities[n].render;
        if (!BoxesOverlap(ent->mins, ent->maxs, tracemins, tracemaxs))
            continue;
        if (!ent->model || !ent->model->TraceLine)
            continue;
        if ((ent->flags & RENDER_EXTERIORMODEL) && !chase_active.integer)
            continue;
        // if transparent and not selectable, skip entity
        if (!(cl.entities[n].state_current.effects & EF_SELECTABLE) && (ent->alpha < 1 || (ent->effects & (EF_ADDITIVE | EF_NODEPTHTEST))))
            continue;
        if (ent == ignoreent)
            continue;
        Matrix4x4_Transform(&ent->inversematrix, start, starttransformed);
        Matrix4x4_Transform(&ent->inversematrix, end, endtransformed);
        Collision_ClipTrace_Box(&trace, ent->model->normalmins, ent->model->normalmaxs, starttransformed, vec3_origin, vec3_origin, endtransformed, SUPERCONTENTS_SOLID, 0, 0, SUPERCONTENTS_SOLID, 0, NULL);
        if (maxfrac < trace.fraction)
            continue;
 
        ent->model->TraceLine(ent->model, ent->frameblend, ent->skeleton, &trace, starttransformed, endtransformed, SUPERCONTENTS_SOLID, 0, 0);
 
        if (maxfrac > trace.fraction)
        {
            if (hitent)
                *hitent = n;
            maxfrac = trace.fraction;
            if (normal)
            {
                VectorCopy(trace.plane.normal, tempnormal);
                Matrix4x4_Transform3x3(&ent->matrix, tempnormal, normal);
            }
        }
    }
    maxfrac = bound(0, maxfrac, 1);
    //maxrealfrac = bound(0, maxrealfrac, 1);
    //if (maxfrac < 0 || maxfrac > 1) Con_Printf("fraction out of bounds %f %s:%d\n", maxfrac, __FILE__, __LINE__);
    if (impact)
        VectorLerp(start, maxfrac, end, impact);
    return maxfrac;
}

References entity_render_t::alpha, bound, BoxesOverlap, chase_active, cl, Collision_ClipTrace_Box(), EF_ADDITIVE, EF_NODEPTHTEST, EF_SELECTABLE, entity_render_t::effects, entity_state_t::effects, trace_t::endpos, client_state_t::entities, client_state_t::entities_active, entity_render_t::flags, trace_t::fraction, entity_render_t::frameblend, cvar_t::integer, entity_render_t::inversematrix, entity_render_t::matrix, Matrix4x4_Transform(), Matrix4x4_Transform3x3(), max, entity_render_t::maxs, min, entity_render_t::mins, entity_render_t::model, n, normal, plane_t::normal, model_t::normalmaxs, model_t::normalmins, NULL, client_state_t::num_entities, trace_t::plane, entity_t::render, RENDER_EXTERIORMODEL, entity_render_t::skeleton, entity_t::state_current, SUPERCONTENTS_SOLID, model_t::TraceLine, vec3_origin, VectorCopy, VectorLerp, and client_state_t::worldmodel.

Referenced by CL_UpdatePrydonCursor().

CL_TraceBox()

trace_t CL_TraceBox	(	const vec3_t	start,
		const vec3_t	mins,
		const vec3_t	maxs,
		const vec3_t	end,
		int	type,
		prvm_edict_t *	passedict,
		int	hitsupercontentsmask,
		int	skipsupercontentsmask,
		int	skipmaterialflagsmask,
		float	extend,
		qbool	hitnetworkbrushmodels,
		qbool	hitnetworkplayers,
		int *	hitnetworkentity,
		qbool	hitcsqcentities )

Definition at line 651 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    vec3_t hullmins, hullmaxs;
    int i, bodysupercontents;
    int passedictprog;
    qbool pointtrace;
    prvm_edict_t *traceowner, *touch;
    trace_t trace;
    // temporary storage because prvm_vec_t may need conversion
    vec3_t touchmins, touchmaxs;
    // bounding box of entire move area
    vec3_t clipboxmins, clipboxmaxs;
    // size of the moving object
    vec3_t clipmins, clipmaxs;
    // size when clipping against monsters
    vec3_t clipmins2, clipmaxs2;
    // start and end origin of move
    vec3_t clipstart, clipend;
    // trace results
    trace_t cliptrace;
    // matrices to transform into/out of other entity's space
    matrix4x4_t matrix, imatrix;
    // model of other entity
    model_t *model;
    // list of entities to test for collisions
    int numtouchedicts;
    static prvm_edict_t *touchedicts[MAX_EDICTS];
    int clipgroup;
    if (VectorCompare(mins, maxs))
    {
        vec3_t shiftstart, shiftend;
        VectorAdd(start, mins, shiftstart);
        VectorAdd(end, mins, shiftend);
        if (VectorCompare(start, end))
            trace = CL_TracePoint(shiftstart, type, passedict, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
        else
            trace = CL_TraceLine(shiftstart, shiftend, type, passedict, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities, false);
        VectorSubtract(trace.endpos, mins, trace.endpos);
        return trace;
    }
 
    if (hitnetworkentity)
        *hitnetworkentity = 0;
 
    VectorCopy(start, clipstart);
    VectorCopy(end, clipend);
    VectorCopy(mins, clipmins);
    VectorCopy(maxs, clipmaxs);
    VectorCopy(mins, clipmins2);
    VectorCopy(maxs, clipmaxs2);
#if COLLISIONPARANOID >= 3
    Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
#endif
 
    // clip to world
    Collision_ClipToWorld(&cliptrace, cl.worldmodel, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend);
    cliptrace.worldstartsolid = cliptrace.bmodelstartsolid = cliptrace.startsolid;
    if (cliptrace.startsolid || cliptrace.fraction < 1)
        cliptrace.ent = prog ? prog->edicts : NULL;
    if (type == MOVE_WORLDONLY)
        goto finished;
 
    if (type == MOVE_MISSILE)
    {
        // LadyHavoc: modified this, was = -15, now -= 15
        for (i = 0;i < 3;i++)
        {
            clipmins2[i] -= 15;
            clipmaxs2[i] += 15;
        }
    }
 
    // get adjusted box for bmodel collisions if the world is q1bsp or hlbsp
    if (cl.worldmodel && cl.worldmodel->brush.RoundUpToHullSize)
        cl.worldmodel->brush.RoundUpToHullSize(cl.worldmodel, clipmins, clipmaxs, hullmins, hullmaxs);
    else
    {
        VectorCopy(clipmins, hullmins);
        VectorCopy(clipmaxs, hullmaxs);
    }
 
    // create the bounding box of the entire move
    for (i = 0;i < 3;i++)
    {
        clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + min(hullmins[i], clipmins2[i]) - 1;
        clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + max(hullmaxs[i], clipmaxs2[i]) + 1;
    }
 
    // debug override to test against everything
    if (sv_debugmove.integer)
    {
        clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = (vec_t)-999999999;
        clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  (vec_t)999999999;
    }
 
    // if the passedict is world, make it NULL (to avoid two checks each time)
    // this checks prog because this function is often called without a CSQC
    // VM context
    if (prog == NULL || passedict == prog->edicts)
        passedict = NULL;
    // precalculate prog value for passedict for comparisons
    passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
    // figure out whether this is a point trace for comparisons
    pointtrace = VectorCompare(clipmins, clipmaxs);
    // precalculate passedict's owner edict pointer for comparisons
    traceowner = passedict ? PRVM_PROG_TO_EDICT(PRVM_clientedictedict(passedict, owner)) : NULL;
 
    clipgroup = passedict ? (int)PRVM_clientedictfloat(passedict, clipgroup) : 0;
 
    // collide against network entities
    if (hitnetworkbrushmodels)
    {
        for (i = 0;i < cl.num_brushmodel_entities;i++)
        {
            entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
            if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
                continue;
            Collision_ClipToGenericEntity(&trace, ent->model, ent->frameblend, ent->skeleton, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, mins, maxs, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend);
            if (cliptrace.fraction > trace.fraction && hitnetworkentity)
                *hitnetworkentity = cl.brushmodel_entities[i];
            Collision_CombineTraces(&cliptrace, &trace, NULL, true);
        }
    }
 
    // collide against player entities
    if (hitnetworkplayers)
    {
        vec3_t origin, entmins, entmaxs;
        matrix4x4_t entmatrix, entinversematrix;
 
        if(IS_OLDNEXUIZ_DERIVED(gamemode))
        {
            // don't hit network players, if we are a nonsolid player
            if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
                goto skipnetworkplayers;
        }
 
        for (i = 1;i <= cl.maxclients;i++)
        {
            entity_render_t *ent = &cl.entities[i].render;
 
            // don't hit ourselves
            if (i == cl.playerentity)
                continue;
 
            // don't hit players that don't exist
            if (!cl.entities_active[i])
                continue;
            if (!cl.scores[i-1].name[0])
                continue;
 
            if(IS_OLDNEXUIZ_DERIVED(gamemode))
            {
                // don't hit spectators or nonsolid players
                if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
                    continue;
            }
 
            Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
            VectorAdd(origin, cl.playerstandmins, entmins);
            VectorAdd(origin, cl.playerstandmaxs, entmaxs);
            if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
                continue;
            Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
            Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
            Collision_ClipToGenericEntity(&trace, NULL, NULL, NULL, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, mins, maxs, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend);
            if (cliptrace.fraction > trace.fraction && hitnetworkentity)
                *hitnetworkentity = i;
            Collision_CombineTraces(&cliptrace, &trace, NULL, false);
        }
 
skipnetworkplayers:
        ;
    }
 
    // clip to entities
    // because this uses World_EntitiestoBox, we know all entity boxes overlap
    // the clip region, so we can skip culling checks in the loop below
    // note: if prog is NULL then there won't be any linked entities
    numtouchedicts = 0;
    if (hitcsqcentities && prog != NULL)
    {
        numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
        if (numtouchedicts > MAX_EDICTS)
        {
            // this never happens
            Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
            numtouchedicts = MAX_EDICTS;
        }
    }
    for (i = 0;i < numtouchedicts;i++)
    {
        touch = touchedicts[i];
 
        if (PRVM_clientedictfloat(touch, solid) < SOLID_BBOX)
            continue;
        if (type == MOVE_NOMONSTERS && PRVM_clientedictfloat(touch, solid) != SOLID_BSP)
            continue;
 
        if (passedict)
        {
            // don't clip against self
            if (passedict == touch)
                continue;
            // don't clip owned entities against owner
            if (traceowner == touch)
                continue;
            // don't clip owner against owned entities
            if (passedictprog == PRVM_clientedictedict(touch, owner))
                continue;
            // don't clip against any entities in the same clipgroup (DP_RM_CLIPGROUP)
            if (clipgroup && clipgroup == (int)PRVM_clientedictfloat(touch, clipgroup))
                continue;
            // don't clip points against points (they can't collide)
            if (pointtrace && VectorCompare(PRVM_clientedictvector(touch, mins), PRVM_clientedictvector(touch, maxs)) && (type != MOVE_MISSILE || !((int)PRVM_clientedictfloat(touch, flags) & FL_MONSTER)))
                continue;
        }
 
        bodysupercontents = PRVM_clientedictfloat(touch, solid) == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 
        // might interact, so do an exact clip
        model = NULL;
        if ((int) PRVM_clientedictfloat(touch, solid) == SOLID_BSP || type == MOVE_HITMODEL)
            model = CL_GetModelFromEdict(touch);
        if (model)
            Matrix4x4_CreateFromQuakeEntity(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2], PRVM_clientedictvector(touch, angles)[0], PRVM_clientedictvector(touch, angles)[1], PRVM_clientedictvector(touch, angles)[2], 1);
        else
            Matrix4x4_CreateTranslate(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2]);
        Matrix4x4_Invert_Simple(&imatrix, &matrix);
        VectorCopy(PRVM_clientedictvector(touch, mins), touchmins);
        VectorCopy(PRVM_clientedictvector(touch, maxs), touchmaxs);
        if ((int)PRVM_clientedictfloat(touch, flags) & FL_MONSTER)
            Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touchmins, touchmaxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend);
        else
            Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touchmins, touchmaxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins, clipmaxs, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend);
 
        if (cliptrace.fraction > trace.fraction && hitnetworkentity)
            *hitnetworkentity = 0;
        Collision_CombineTraces(&cliptrace, &trace, (void *)touch, PRVM_clientedictfloat(touch, solid) == SOLID_BSP);
    }
 
finished:
    return cliptrace;
}

References angles, trace_t::bmodelstartsolid, BoxesOverlap, client_state_t::brushmodel_entities, cl, CL_GetModelFromEdict(), CL_TraceLine(), CL_TracePoint(), clipgroup, CLVM_prog, Collision_ClipToGenericEntity(), Collision_ClipToWorld(), Collision_CombineTraces(), Con_Printf(), prvm_prog_t::edicts, trace_t::endpos, trace_t::ent, client_state_t::entities, client_state_t::entities_active, FL_MONSTER, flags, trace_t::fraction, scoreboard_t::frags, entity_render_t::frameblend, gamemode, i, int(), cvar_t::integer, entity_render_t::inversematrix, IS_OLDNEXUIZ_DERIVED, entity_render_t::matrix, Matrix4x4_CreateFromQuakeEntity(), Matrix4x4_CreateTranslate(), Matrix4x4_Invert_Simple(), Matrix4x4_OriginFromMatrix(), max, MAX_EDICTS, client_state_t::maxclients, entity_render_t::maxs, maxs, min, entity_render_t::mins, mins, entity_render_t::model, model, MOVE_HITMODEL, MOVE_MISSILE, MOVE_NOMONSTERS, MOVE_WORLDONLY, scoreboard_t::name, NULL, client_state_t::num_brushmodel_entities, origin, owner, client_state_t::playerentity, client_state_t::playerstandmaxs, client_state_t::playerstandmins, prvm_edict_t::priv, PRVM_clientedictedict, PRVM_clientedictfloat, PRVM_clientedictvector, PRVM_EDICT_TO_PROG, PRVM_PROG_TO_EDICT, entity_t::render, client_state_t::scores, prvm_edict_t::server, entity_render_t::skeleton, solid, SOLID_BBOX, SOLID_BSP, SOLID_CORPSE, trace_t::startsolid, SUPERCONTENTS_BODY, SUPERCONTENTS_CORPSE, sv_debugmove, type, vec3_origin, VectorAdd, VectorCompare, VectorCopy, VectorSubtract, client_state_t::world, World_EntitiesInBox(), client_state_t::worldmodel, and trace_t::worldstartsolid.

Referenced by CL_ClientMovement_Move(), CL_ClientMovement_Physics_Walk(), CL_ClientMovement_Unstick(), CL_ClientMovement_UpdateStatus(), CL_movestep(), CL_Trace_Toss(), PHYS_TraceBox(), VM_CL_droptofloor(), and VM_CL_tracebox().

CL_TraceLine()

trace_t CL_TraceLine	(	const vec3_t	start,
		const vec3_t	end,
		int	type,
		prvm_edict_t *	passedict,
		int	hitsupercontentsmask,
		int	skipsupercontentsmask,
		int	skipmaterialflagsmask,
		float	extend,
		qbool	hitnetworkbrushmodels,
		qbool	hitnetworkplayers,
		int *	hitnetworkentity,
		qbool	hitcsqcentities,
		qbool	hitsurfaces )

Definition at line 427 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    int i, bodysupercontents;
    int passedictprog;
    prvm_edict_t *traceowner, *touch;
    trace_t trace;
    // temporary storage because prvm_vec_t may need conversion
    vec3_t touchmins, touchmaxs;
    // bounding box of entire move area
    vec3_t clipboxmins, clipboxmaxs;
    // size when clipping against monsters
    vec3_t clipmins2, clipmaxs2;
    // start and end origin of move
    vec3_t clipstart, clipend;
    // trace results
    trace_t cliptrace;
    // matrices to transform into/out of other entity's space
    matrix4x4_t matrix, imatrix;
    // model of other entity
    model_t *model;
    // list of entities to test for collisions
    int numtouchedicts;
    static prvm_edict_t *touchedicts[MAX_EDICTS];
    int clipgroup;
    if (VectorCompare(start, end))
        return CL_TracePoint(start, type, passedict, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, hitnetworkbrushmodels, hitnetworkplayers, hitnetworkentity, hitcsqcentities);
 
    if (hitnetworkentity)
        *hitnetworkentity = 0;
 
    VectorCopy(start, clipstart);
    VectorCopy(end, clipend);
    VectorClear(clipmins2);
    VectorClear(clipmaxs2);
#if COLLISIONPARANOID >= 3
    Con_Printf("move(%f %f %f,%f %f %f)", clipstart[0], clipstart[1], clipstart[2], clipend[0], clipend[1], clipend[2]);
#endif
 
    // clip to world
    Collision_ClipLineToWorld(&cliptrace, cl.worldmodel, clipstart, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend, hitsurfaces);
    cliptrace.worldstartsolid = cliptrace.bmodelstartsolid = cliptrace.startsolid;
    if (cliptrace.startsolid || cliptrace.fraction < 1)
        cliptrace.ent = prog ? prog->edicts : NULL;
    if (type == MOVE_WORLDONLY)
        goto finished;
 
    if (type == MOVE_MISSILE)
    {
        // LadyHavoc: modified this, was = -15, now -= 15
        for (i = 0;i < 3;i++)
        {
            clipmins2[i] -= 15;
            clipmaxs2[i] += 15;
        }
    }
 
    // create the bounding box of the entire move
    for (i = 0;i < 3;i++)
    {
        clipboxmins[i] = min(clipstart[i], cliptrace.endpos[i]) + clipmins2[i] - 1;
        clipboxmaxs[i] = max(clipstart[i], cliptrace.endpos[i]) + clipmaxs2[i] + 1;
    }
 
    // debug override to test against everything
    if (sv_debugmove.integer)
    {
        clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = (vec_t)-999999999;
        clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  (vec_t)999999999;
    }
 
    // if the passedict is world, make it NULL (to avoid two checks each time)
    // this checks prog because this function is often called without a CSQC
    // VM context
    if (prog == NULL || passedict == prog->edicts)
        passedict = NULL;
    // precalculate prog value for passedict for comparisons
    passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
    // precalculate passedict's owner edict pointer for comparisons
    traceowner = passedict ? PRVM_PROG_TO_EDICT(PRVM_clientedictedict(passedict, owner)) : NULL;
 
    clipgroup = passedict ? (int)PRVM_clientedictfloat(passedict, clipgroup) : 0;
 
    // collide against network entities
    if (hitnetworkbrushmodels)
    {
        for (i = 0;i < cl.num_brushmodel_entities;i++)
        {
            entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
            if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
                continue;
            Collision_ClipLineToGenericEntity(&trace, ent->model, ent->frameblend, ent->skeleton, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend, hitsurfaces);
            if (cliptrace.fraction > trace.fraction && hitnetworkentity)
                *hitnetworkentity = cl.brushmodel_entities[i];
            Collision_CombineTraces(&cliptrace, &trace, NULL, true);
        }
    }
 
    // collide against player entities
    if (hitnetworkplayers)
    {
        vec3_t origin, entmins, entmaxs;
        matrix4x4_t entmatrix, entinversematrix;
 
        if(IS_OLDNEXUIZ_DERIVED(gamemode))
        {
            // don't hit network players, if we are a nonsolid player
            if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
                goto skipnetworkplayers;
        }
 
        for (i = 1;i <= cl.maxclients;i++)
        {
            entity_render_t *ent = &cl.entities[i].render;
 
            // don't hit ourselves
            if (i == cl.playerentity)
                continue;
 
            // don't hit players that don't exist
            if (!cl.entities_active[i])
                continue;
            if (!cl.scores[i-1].name[0])
                continue;
 
            if(IS_OLDNEXUIZ_DERIVED(gamemode))
            {
                // don't hit spectators or nonsolid players
                if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
                    continue;
            }
 
            Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
            VectorAdd(origin, cl.playerstandmins, entmins);
            VectorAdd(origin, cl.playerstandmaxs, entmaxs);
            if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
                continue;
            Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
            Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
            Collision_ClipLineToGenericEntity(&trace, NULL, NULL, NULL, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend, hitsurfaces);
            if (cliptrace.fraction > trace.fraction && hitnetworkentity)
                *hitnetworkentity = i;
            Collision_CombineTraces(&cliptrace, &trace, NULL, false);
        }
 
skipnetworkplayers:
        ;
    }
 
    // clip to entities
    // because this uses World_EntitiestoBox, we know all entity boxes overlap
    // the clip region, so we can skip culling checks in the loop below
    // note: if prog is NULL then there won't be any linked entities
    numtouchedicts = 0;
    if (hitcsqcentities && prog != NULL)
    {
        numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
        if (numtouchedicts > MAX_EDICTS)
        {
            // this never happens
            Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
            numtouchedicts = MAX_EDICTS;
        }
    }
    for (i = 0;i < numtouchedicts;i++)
    {
        touch = touchedicts[i];
 
        if (PRVM_clientedictfloat(touch, solid) < SOLID_BBOX)
            continue;
        if (type == MOVE_NOMONSTERS && PRVM_clientedictfloat(touch, solid) != SOLID_BSP)
            continue;
 
        if (passedict)
        {
            // don't clip against self
            if (passedict == touch)
                continue;
            // don't clip owned entities against owner
            if (traceowner == touch)
                continue;
            // don't clip owner against owned entities
            if (passedictprog == PRVM_clientedictedict(touch, owner))
                continue;
            // don't clip against any entities in the same clipgroup (DP_RM_CLIPGROUP)
            if (clipgroup && clipgroup == (int)PRVM_clientedictfloat(touch, clipgroup))
                continue;
            // don't clip points against points (they can't collide)
            if (VectorCompare(PRVM_clientedictvector(touch, mins), PRVM_clientedictvector(touch, maxs)) && (type != MOVE_MISSILE || !((int)PRVM_clientedictfloat(touch, flags) & FL_MONSTER)))
                continue;
        }
 
        bodysupercontents = PRVM_clientedictfloat(touch, solid) == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 
        // might interact, so do an exact clip
        model = NULL;
        if ((int) PRVM_clientedictfloat(touch, solid) == SOLID_BSP || type == MOVE_HITMODEL)
            model = CL_GetModelFromEdict(touch);
        if (model)
            Matrix4x4_CreateFromQuakeEntity(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2], PRVM_clientedictvector(touch, angles)[0], PRVM_clientedictvector(touch, angles)[1], PRVM_clientedictvector(touch, angles)[2], 1);
        else
            Matrix4x4_CreateTranslate(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2]);
        Matrix4x4_Invert_Simple(&imatrix, &matrix);
        VectorCopy(PRVM_clientedictvector(touch, mins), touchmins);
        VectorCopy(PRVM_clientedictvector(touch, maxs), touchmaxs);
        if (type == MOVE_MISSILE && (int)PRVM_clientedictfloat(touch, flags) & FL_MONSTER)
            Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touchmins, touchmaxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend);
        else
            Collision_ClipLineToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touchmins, touchmaxs, bodysupercontents, &matrix, &imatrix, clipstart, clipend, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, extend, hitsurfaces);
 
        if (cliptrace.fraction > trace.fraction && hitnetworkentity)
            *hitnetworkentity = 0;
        Collision_CombineTraces(&cliptrace, &trace, (void *)touch, PRVM_clientedictfloat(touch, solid) == SOLID_BSP);
    }
 
finished:
    return cliptrace;
}

References angles, trace_t::bmodelstartsolid, BoxesOverlap, client_state_t::brushmodel_entities, cl, CL_GetModelFromEdict(), CL_TracePoint(), clipgroup, CLVM_prog, Collision_ClipLineToGenericEntity(), Collision_ClipLineToWorld(), Collision_ClipToGenericEntity(), Collision_CombineTraces(), Con_Printf(), prvm_prog_t::edicts, trace_t::endpos, trace_t::ent, client_state_t::entities, client_state_t::entities_active, FL_MONSTER, flags, trace_t::fraction, scoreboard_t::frags, entity_render_t::frameblend, gamemode, i, int(), cvar_t::integer, entity_render_t::inversematrix, IS_OLDNEXUIZ_DERIVED, entity_render_t::matrix, Matrix4x4_CreateFromQuakeEntity(), Matrix4x4_CreateTranslate(), Matrix4x4_Invert_Simple(), Matrix4x4_OriginFromMatrix(), max, MAX_EDICTS, client_state_t::maxclients, entity_render_t::maxs, maxs, min, entity_render_t::mins, mins, entity_render_t::model, model, MOVE_HITMODEL, MOVE_MISSILE, MOVE_NOMONSTERS, MOVE_WORLDONLY, scoreboard_t::name, NULL, client_state_t::num_brushmodel_entities, origin, owner, client_state_t::playerentity, client_state_t::playerstandmaxs, client_state_t::playerstandmins, prvm_edict_t::priv, PRVM_clientedictedict, PRVM_clientedictfloat, PRVM_clientedictvector, PRVM_EDICT_TO_PROG, PRVM_PROG_TO_EDICT, entity_t::render, client_state_t::scores, prvm_edict_t::server, entity_render_t::skeleton, solid, SOLID_BBOX, SOLID_BSP, SOLID_CORPSE, trace_t::startsolid, SUPERCONTENTS_BODY, SUPERCONTENTS_CORPSE, sv_debugmove, type, vec3_origin, VectorAdd, VectorClear, VectorCompare, VectorCopy, client_state_t::world, World_EntitiesInBox(), client_state_t::worldmodel, and trace_t::worldstartsolid.

Referenced by CL_CheckBottom(), CL_ClientMovement_Physics_Walk(), CL_LinkNetworkEntity(), CL_NewParticle(), CL_ParticleExplosion(), CL_SpawnDecalParticleForPoint(), CL_TraceBox(), R_CanSeeBox(), R_CompleteLightPoint(), R_DrawParticles(), R_MoveExplosion(), R_NewExplosion(), R_Shadow_BounceGrid_TracePhotons_Shot(), R_Shadow_SelectLightInView(), R_Shadow_SetCursorLocationForView(), Sbar_ShowFPS(), V_CalcRefdefUsing(), VM_CL_checkbottom(), and VM_CL_traceline().

CL_TracePoint()

trace_t CL_TracePoint	(	const vec3_t	start,
		int	type,
		prvm_edict_t *	passedict,
		int	hitsupercontentsmask,
		int	skipsupercontentsmask,
		int	skipmaterialflagsmask,
		qbool	hitnetworkbrushmodels,
		qbool	hitnetworkplayers,
		int *	hitnetworkentity,
		qbool	hitcsqcentities )

Definition at line 206 of file cl_collision.c.

{
    prvm_prog_t *prog = CLVM_prog;
    int i, bodysupercontents;
    int passedictprog;
    prvm_edict_t *traceowner, *touch;
    trace_t trace;
    // temporary storage because prvm_vec_t may need conversion
    vec3_t touchmins, touchmaxs;
    // bounding box of entire move area
    vec3_t clipboxmins, clipboxmaxs;
    // size when clipping against monsters
    vec3_t clipmins2, clipmaxs2;
    // start and end origin of move
    vec3_t clipstart;
    // trace results
    trace_t cliptrace;
    // matrices to transform into/out of other entity's space
    matrix4x4_t matrix, imatrix;
    // model of other entity
    model_t *model;
    // list of entities to test for collisions
    int numtouchedicts;
    static prvm_edict_t *touchedicts[MAX_EDICTS];
    int clipgroup;
 
    if (hitnetworkentity)
        *hitnetworkentity = 0;
 
    VectorCopy(start, clipstart);
    VectorClear(clipmins2);
    VectorClear(clipmaxs2);
#if COLLISIONPARANOID >= 3
    Con_Printf("move(%f %f %f)", clipstart[0], clipstart[1], clipstart[2]);
#endif
 
    // clip to world
    Collision_ClipPointToWorld(&cliptrace, cl.worldmodel, clipstart, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
    cliptrace.worldstartsolid = cliptrace.bmodelstartsolid = cliptrace.startsolid;
    if (cliptrace.startsolid || cliptrace.fraction < 1)
        cliptrace.ent = prog ? prog->edicts : NULL;
    if (type == MOVE_WORLDONLY)
        goto finished;
 
    if (type == MOVE_MISSILE)
    {
        // LadyHavoc: modified this, was = -15, now -= 15
        for (i = 0;i < 3;i++)
        {
            clipmins2[i] -= 15;
            clipmaxs2[i] += 15;
        }
    }
 
    // create the bounding box of the entire move
    for (i = 0;i < 3;i++)
    {
        clipboxmins[i] = clipstart[i] - 1;
        clipboxmaxs[i] = clipstart[i] + 1;
    }
 
    // debug override to test against everything
    if (sv_debugmove.integer)
    {
        clipboxmins[0] = clipboxmins[1] = clipboxmins[2] = (vec_t)-999999999;
        clipboxmaxs[0] = clipboxmaxs[1] = clipboxmaxs[2] =  (vec_t)999999999;
    }
 
    // if the passedict is world, make it NULL (to avoid two checks each time)
    // this checks prog because this function is often called without a CSQC
    // VM context
    if (prog == NULL || passedict == prog->edicts)
        passedict = NULL;
    // precalculate prog value for passedict for comparisons
    passedictprog = prog != NULL ? PRVM_EDICT_TO_PROG(passedict) : 0;
    // precalculate passedict's owner edict pointer for comparisons
    traceowner = passedict ? PRVM_PROG_TO_EDICT(PRVM_clientedictedict(passedict, owner)) : NULL;
 
    clipgroup = passedict ? (int)PRVM_clientedictfloat(passedict, clipgroup) : 0;
 
    // collide against network entities
    if (hitnetworkbrushmodels)
    {
        for (i = 0;i < cl.num_brushmodel_entities;i++)
        {
            entity_render_t *ent = &cl.entities[cl.brushmodel_entities[i]].render;
            if (!BoxesOverlap(clipboxmins, clipboxmaxs, ent->mins, ent->maxs))
                continue;
            Collision_ClipPointToGenericEntity(&trace, ent->model, ent->frameblend, ent->skeleton, vec3_origin, vec3_origin, 0, &ent->matrix, &ent->inversematrix, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
            if (cliptrace.fraction > trace.fraction && hitnetworkentity)
                *hitnetworkentity = cl.brushmodel_entities[i];
            Collision_CombineTraces(&cliptrace, &trace, NULL, true);
        }
    }
 
    // collide against player entities
    if (hitnetworkplayers)
    {
        vec3_t origin, entmins, entmaxs;
        matrix4x4_t entmatrix, entinversematrix;
 
        if(IS_OLDNEXUIZ_DERIVED(gamemode))
        {
            // don't hit network players, if we are a nonsolid player
            if(cl.scores[cl.playerentity-1].frags == -666 || cl.scores[cl.playerentity-1].frags == -616)
                goto skipnetworkplayers;
        }
 
        for (i = 1;i <= cl.maxclients;i++)
        {
            entity_render_t *ent = &cl.entities[i].render;
 
            // don't hit ourselves
            if (i == cl.playerentity)
                continue;
 
            // don't hit players that don't exist
            if (!cl.entities_active[i])
                continue;
            if (!cl.scores[i-1].name[0])
                continue;
 
            if(IS_OLDNEXUIZ_DERIVED(gamemode))
            {
                // don't hit spectators or nonsolid players
                if(cl.scores[i-1].frags == -666 || cl.scores[i-1].frags == -616)
                    continue;
            }
 
            Matrix4x4_OriginFromMatrix(&ent->matrix, origin);
            VectorAdd(origin, cl.playerstandmins, entmins);
            VectorAdd(origin, cl.playerstandmaxs, entmaxs);
            if (!BoxesOverlap(clipboxmins, clipboxmaxs, entmins, entmaxs))
                continue;
            Matrix4x4_CreateTranslate(&entmatrix, origin[0], origin[1], origin[2]);
            Matrix4x4_CreateTranslate(&entinversematrix, -origin[0], -origin[1], -origin[2]);
            Collision_ClipPointToGenericEntity(&trace, NULL, NULL, NULL, cl.playerstandmins, cl.playerstandmaxs, SUPERCONTENTS_BODY, &entmatrix, &entinversematrix, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
            if (cliptrace.fraction > trace.fraction && hitnetworkentity)
                *hitnetworkentity = i;
            Collision_CombineTraces(&cliptrace, &trace, NULL, false);
        }
 
skipnetworkplayers:
        ;
    }
 
    // clip to entities
    // because this uses World_EntitiestoBox, we know all entity boxes overlap
    // the clip region, so we can skip culling checks in the loop below
    // note: if prog is NULL then there won't be any linked entities
    numtouchedicts = 0;
    if (hitcsqcentities && prog != NULL)
    {
        numtouchedicts = World_EntitiesInBox(&cl.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
        if (numtouchedicts > MAX_EDICTS)
        {
            // this never happens
            Con_Printf("CL_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
            numtouchedicts = MAX_EDICTS;
        }
    }
    for (i = 0;i < numtouchedicts;i++)
    {
        touch = touchedicts[i];
 
        if (PRVM_clientedictfloat(touch, solid) < SOLID_BBOX)
            continue;
        if (type == MOVE_NOMONSTERS && PRVM_clientedictfloat(touch, solid) != SOLID_BSP)
            continue;
 
        if (passedict)
        {
            // don't clip against self
            if (passedict == touch)
                continue;
            // don't clip owned entities against owner
            if (traceowner == touch)
                continue;
            // don't clip owner against owned entities
            if (passedictprog == PRVM_clientedictedict(touch, owner))
                continue;
            // don't clip against any entities in the same clipgroup (DP_RM_CLIPGROUP)
            if (clipgroup && clipgroup == (int)PRVM_clientedictfloat(touch, clipgroup))
                continue;
            // don't clip points against points (they can't collide)
            if (VectorCompare(PRVM_clientedictvector(touch, mins), PRVM_clientedictvector(touch, maxs)) && (type != MOVE_MISSILE || !((int)PRVM_clientedictfloat(touch, flags) & FL_MONSTER)))
                continue;
        }
 
        bodysupercontents = PRVM_clientedictfloat(touch, solid) == SOLID_CORPSE ? SUPERCONTENTS_CORPSE : SUPERCONTENTS_BODY;
 
        // might interact, so do an exact clip
        model = NULL;
        if ((int) PRVM_clientedictfloat(touch, solid) == SOLID_BSP || type == MOVE_HITMODEL)
            model = CL_GetModelFromEdict(touch);
        if (model)
            Matrix4x4_CreateFromQuakeEntity(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2], PRVM_clientedictvector(touch, angles)[0], PRVM_clientedictvector(touch, angles)[1], PRVM_clientedictvector(touch, angles)[2], 1);
        else
            Matrix4x4_CreateTranslate(&matrix, PRVM_clientedictvector(touch, origin)[0], PRVM_clientedictvector(touch, origin)[1], PRVM_clientedictvector(touch, origin)[2]);
        Matrix4x4_Invert_Simple(&imatrix, &matrix);
        VectorCopy(PRVM_clientedictvector(touch, mins), touchmins);
        VectorCopy(PRVM_clientedictvector(touch, maxs), touchmaxs);
        if ((int)PRVM_clientedictfloat(touch, flags) & FL_MONSTER)
            Collision_ClipToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touchmins, touchmaxs, bodysupercontents, &matrix, &imatrix, clipstart, clipmins2, clipmaxs2, clipstart, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, 0.0f);
        else
            Collision_ClipPointToGenericEntity(&trace, model, touch->priv.server->frameblend, &touch->priv.server->skeleton, touchmins, touchmaxs, bodysupercontents, &matrix, &imatrix, clipstart, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
 
        if (cliptrace.fraction > trace.fraction && hitnetworkentity)
            *hitnetworkentity = 0;
        Collision_CombineTraces(&cliptrace, &trace, (void *)touch, PRVM_clientedictfloat(touch, solid) == SOLID_BSP);
    }
 
finished:
    return cliptrace;
}

References angles, trace_t::bmodelstartsolid, BoxesOverlap, client_state_t::brushmodel_entities, cl, CL_GetModelFromEdict(), clipgroup, CLVM_prog, Collision_ClipPointToGenericEntity(), Collision_ClipPointToWorld(), Collision_ClipToGenericEntity(), Collision_CombineTraces(), Con_Printf(), prvm_prog_t::edicts, trace_t::ent, client_state_t::entities, client_state_t::entities_active, FL_MONSTER, flags, trace_t::fraction, scoreboard_t::frags, entity_render_t::frameblend, gamemode, i, int(), cvar_t::integer, entity_render_t::inversematrix, IS_OLDNEXUIZ_DERIVED, entity_render_t::matrix, Matrix4x4_CreateFromQuakeEntity(), Matrix4x4_CreateTranslate(), Matrix4x4_Invert_Simple(), Matrix4x4_OriginFromMatrix(), MAX_EDICTS, client_state_t::maxclients, entity_render_t::maxs, maxs, entity_render_t::mins, mins, entity_render_t::model, model, MOVE_HITMODEL, MOVE_MISSILE, MOVE_NOMONSTERS, MOVE_WORLDONLY, scoreboard_t::name, NULL, client_state_t::num_brushmodel_entities, origin, owner, client_state_t::playerentity, client_state_t::playerstandmaxs, client_state_t::playerstandmins, prvm_edict_t::priv, PRVM_clientedictedict, PRVM_clientedictfloat, PRVM_clientedictvector, PRVM_EDICT_TO_PROG, PRVM_PROG_TO_EDICT, entity_t::render, client_state_t::scores, prvm_edict_t::server, entity_render_t::skeleton, solid, SOLID_BBOX, SOLID_BSP, SOLID_CORPSE, trace_t::startsolid, SUPERCONTENTS_BODY, SUPERCONTENTS_CORPSE, sv_debugmove, type, vec3_origin, VectorAdd, VectorClear, VectorCompare, VectorCopy, client_state_t::world, World_EntitiesInBox(), client_state_t::worldmodel, and trace_t::worldstartsolid.

Referenced by CL_ClientMovement_Physics_Swim(), CL_ClientMovement_UpdateStatus(), CL_TraceBox(), CL_TraceLine(), and R_Shadow_BounceGrid_RefractiveIndexAtPoint().