}
#endif
-void Collision_RoundUpToHullSize(const model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
-{
- vec3_t size;
- const hull_t *hull;
-
- VectorSubtract(inmaxs, inmins, size);
- if (cmodel->brushq1.ishlbsp)
- {
- if (size[0] < 3)
- hull = &cmodel->brushq1.hulls[0]; // 0x0x0
- else if (size[0] <= 32)
- {
- if (size[2] < 54) // pick the nearest of 36 or 72
- hull = &cmodel->brushq1.hulls[3]; // 32x32x36
- else
- hull = &cmodel->brushq1.hulls[1]; // 32x32x72
- }
- else
- hull = &cmodel->brushq1.hulls[2]; // 64x64x64
- }
- else
- {
- if (size[0] < 3)
- hull = &cmodel->brushq1.hulls[0]; // 0x0x0
- else if (size[0] <= 32)
- hull = &cmodel->brushq1.hulls[1]; // 32x32x56
- else
- hull = &cmodel->brushq1.hulls[2]; // 64x64x88
- }
- VectorCopy(inmins, outmins);
- VectorAdd(inmins, hull->clip_size, outmaxs);
-}
-
static hull_t box_hull;
static dclipnode_t box_clipnodes[6];
static mplane_t box_planes[6];
#define COLLISIONEPSILON2 0//(1.0f / 32.0f)
// NOTE: start and end of each brush pair must have same numplanes/numpoints
-float Collision_TraceBrushBrushFloat(const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const colbrushf_t *thatbrush_start, const colbrushf_t *thatbrush_end, float *impactnormal, int *startsolid, int *allsolid)
+void Collision_TraceBrushBrushFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const colbrushf_t *thatbrush_start, const colbrushf_t *thatbrush_end)
{
int nplane, nplane2, fstartsolid, fendsolid;
float enterfrac, leavefrac, d1, d2, f, newimpactnormal[3];
{
// moving into brush
if (d2 > 0)
- return 1;
+ return;
if (d1 < 0)
continue;
// enter
{
// moving out of brush
if (d1 > 0)
- return 1;
+ return;
if (d2 < 0)
continue;
// leave
if (fstartsolid)
{
- if (startsolid)
- *startsolid = true;
- if (fendsolid && allsolid)
- *allsolid = true;
+ trace->startsolid = true;
+ if (fendsolid)
+ trace->allsolid = true;
}
// LordHavoc: we need an epsilon nudge here because for a point trace the
// penetrating line segment is normally zero length if this brush was
// generated from a polygon (infinitely thin), and could even be slightly
// positive or negative due to rounding errors in that case.
- if (enterfrac > -1 && enterfrac < 1 && enterfrac - (1.0f / 1024.0f) <= leavefrac)
+ if (enterfrac > -1 && enterfrac < trace->fraction && enterfrac - (1.0f / 1024.0f) <= leavefrac)
{
- //if (enterfrac < (1.0f / 1024.0f))
- // enterfrac = 0;
- enterfrac = bound(0, enterfrac, 1);
- VectorCopy(newimpactnormal, impactnormal);
- return enterfrac;
+ trace->fraction = bound(0, enterfrac, 1);
+ VectorCopy(newimpactnormal, trace->plane.normal);
}
- return 1;
}
static colplanef_t polyf_planes[256 + 2];
static colbrushf_t polyf_brush;
-float Collision_TraceBrushPolygonFloat(const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numpoints, const float *points, float *impactnormal, int *startsolid, int *allsolid)
+void Collision_TraceBrushPolygonFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numpoints, const float *points)
{
if (numpoints > 256)
{
Con_Printf("Polygon with more than 256 points not supported yet (fixme!)\n");
- return 1;
+ return;
}
polyf_brush.numpoints = numpoints;
polyf_brush.numplanes = numpoints + 2;
polyf_brush.planes = polyf_planes;
Collision_CalcPlanesForPolygonBrushFloat(&polyf_brush);
//Collision_PrintBrushAsQHull(&polyf_brush, "polyf_brush");
- return Collision_TraceBrushBrushFloat(thisbrush_start, thisbrush_end, &polyf_brush, &polyf_brush, impactnormal, startsolid, allsolid);
+ Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, &polyf_brush, &polyf_brush);
}
static colpointf_t polyf_pointsstart[256], polyf_pointsend[256];
static colplanef_t polyf_planesstart[256 + 2], polyf_planesend[256 + 2];
static colbrushf_t polyf_brushstart, polyf_brushend;
-float Collision_TraceBrushPolygonTransformFloat(const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numpoints, const float *points, float *impactnormal, const matrix4x4_t *polygonmatrixstart, const matrix4x4_t *polygonmatrixend, int *startsolid, int *allsolid)
+void Collision_TraceBrushPolygonTransformFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numpoints, const float *points, const matrix4x4_t *polygonmatrixstart, const matrix4x4_t *polygonmatrixend)
{
int i;
if (numpoints > 256)
{
Con_Printf("Polygon with more than 256 points not supported yet (fixme!)\n");
- return 1;
+ return;
}
polyf_brushstart.numpoints = numpoints;
polyf_brushstart.numplanes = numpoints + 2;
//Collision_PrintBrushAsQHull(&polyf_brushstart, "polyf_brushstart");
//Collision_PrintBrushAsQHull(&polyf_brushend, "polyf_brushend");
- return Collision_TraceBrushBrushFloat(thisbrush_start, thisbrush_end, &polyf_brushstart, &polyf_brushend, impactnormal, startsolid, allsolid);
-}
-
-colbrushd_t *Collision_AllocBrushDouble(mempool_t *mempool, int numpoints, int numplanes)
-{
- colbrushd_t *brush;
- brush = Mem_Alloc(mempool, sizeof(colbrushd_t) + sizeof(colpointd_t) * numpoints + sizeof(colplaned_t) * numplanes);
- brush->numpoints = numpoints;
- brush->numplanes = numplanes;
- brush->planes = (void *)(brush + 1);
- brush->points = (void *)(brush->planes + brush->numplanes);
- return brush;
-}
-
-void Collision_CalcPlanesForPolygonBrushDouble(colbrushd_t *brush)
-{
- int i;
- double edge0[3], edge1[3], normal[3], dist, bestdist;
- colpointd_t *p, *p2;
-
- // choose best surface normal for polygon's plane
- bestdist = 0;
- for (i = 2, p = brush->points + 2;i < brush->numpoints;i++, p++)
- {
- VectorSubtract(p[-1].v, p[0].v, edge0);
- VectorSubtract(p[1].v, p[0].v, edge1);
- CrossProduct(edge0, edge1, normal);
- dist = DotProduct(normal, normal);
- if (i == 2 || bestdist < dist)
- {
- bestdist = dist;
- VectorCopy(normal, brush->planes->normal);
- }
- }
-
- VectorNormalize(brush->planes->normal);
- brush->planes->dist = DotProduct(brush->points->v, brush->planes->normal);
-
- // negate plane to create other side
- VectorNegate(brush->planes[0].normal, brush->planes[1].normal);
- brush->planes[1].dist = -brush->planes[0].dist;
- for (i = 0, p = brush->points + (brush->numpoints - 1), p2 = brush->points + 2;i < brush->numpoints;i++, p = p2, p2++)
- {
- VectorSubtract(p->v, p2->v, edge0);
- CrossProduct(edge0, brush->planes->normal, brush->planes[i].normal);
- VectorNormalize(brush->planes[i].normal);
- brush->planes[i].dist = DotProduct(p->v, brush->planes[i].normal);
- }
-
-#if 1
- // validity check - will be disabled later
- for (i = 0;i < brush->numplanes;i++)
- {
- int j;
- for (j = 0, p = brush->points;j < brush->numpoints;j++, p++)
- if (DotProduct(p->v, brush->planes[i].normal) > brush->planes[i].dist + (1.0 / 32.0))
- Con_Printf("Error in brush plane generation, plane %i\n");
- }
-#endif
-}
-
-colbrushd_t *Collision_AllocBrushFromPermanentPolygonDouble(mempool_t *mempool, int numpoints, double *points)
-{
- colbrushd_t *brush;
- brush = Mem_Alloc(mempool, sizeof(colbrushd_t) + sizeof(colplaned_t) * (numpoints + 2));
- brush->numpoints = numpoints;
- brush->numplanes = numpoints + 2;
- brush->planes = (void *)(brush + 1);
- brush->points = (colpointd_t *)points;
- return brush;
-}
-
-
-double nearestplanedist_double(const double *normal, const colpointd_t *points, int numpoints)
-{
- double dist, bestdist;
- bestdist = DotProduct(points->v, normal);
- points++;
- while(--numpoints)
- {
- dist = DotProduct(points->v, normal);
- if (bestdist > dist)
- bestdist = dist;
- points++;
- }
- return bestdist;
-}
-
-double furthestplanedist_double(const double *normal, const colpointd_t *points, int numpoints)
-{
- double dist, bestdist;
- bestdist = DotProduct(points->v, normal);
- points++;
- while(--numpoints)
- {
- dist = DotProduct(points->v, normal);
- if (bestdist < dist)
- bestdist = dist;
- points++;
- }
- return bestdist;
-}
-
-// NOTE: start and end of each brush pair must have same numplanes/numpoints
-double Collision_TraceBrushBrushDouble(const colbrushd_t *thisbrush_start, const colbrushd_t *thisbrush_end, const colbrushd_t *thatbrush_start, const colbrushd_t *thatbrush_end, double *impactnormal)
-{
- int nplane;
- double enterfrac, leavefrac, d1, d2, f, newimpactnormal[3];
- const colplaned_t *startplane, *endplane;
-
- enterfrac = -1;
- leavefrac = 1;
-
- for (nplane = 0;nplane < thatbrush_start->numplanes;nplane++)
- {
- startplane = thatbrush_start->planes + nplane;
- endplane = thatbrush_end->planes + nplane;
- d1 = nearestplanedist_double(startplane->normal, thisbrush_start->points, thisbrush_start->numpoints) - furthestplanedist_double(startplane->normal, thatbrush_start->points, thatbrush_start->numpoints);
- d2 = nearestplanedist_double(endplane->normal, thisbrush_end->points, thisbrush_start->numpoints) - furthestplanedist_double(endplane->normal, thatbrush_end->points, thatbrush_start->numpoints) - (1.0 / 32.0);
-
- f = d1 - d2;
- if (f >= 0)
- {
- // moving into brush
- if (d2 > 0)
- return 1;
- if (d1 < 0)
- continue;
- // enter
- f = d1 / f;
- if (enterfrac < f)
- {
- enterfrac = f;
- VectorSubtract(endplane->normal, startplane->normal, newimpactnormal);
- VectorMA(startplane->normal, enterfrac, impactnormal, newimpactnormal);
- }
- }
- else
- {
- // moving out of brush
- if (d1 > 0)
- return 1;
- if (d2 < 0)
- continue;
- // leave
- f = d1 / f;
- if (leavefrac > f)
- leavefrac = f;
- }
- }
-
- for (nplane = 0;nplane < thisbrush_start->numplanes;nplane++)
- {
- startplane = thisbrush_start->planes + nplane;
- endplane = thisbrush_end->planes + nplane;
- d1 = nearestplanedist_double(startplane->normal, thisbrush_start->points, thisbrush_start->numpoints) - furthestplanedist_double(startplane->normal, thatbrush_start->points, thatbrush_start->numpoints);
- d2 = nearestplanedist_double(endplane->normal, thisbrush_end->points, thisbrush_start->numpoints) - furthestplanedist_double(endplane->normal, thatbrush_end->points, thatbrush_start->numpoints) - (1.0 / 32.0);
-
- f = d1 - d2;
- if (f >= 0)
- {
- // moving into brush
- if (d2 > 0)
- return 1;
- if (d1 < 0)
- continue;
- // enter
- f = d1 / f;
- if (enterfrac < f)
- {
- enterfrac = f;
- VectorSubtract(endplane->normal, startplane->normal, newimpactnormal);
- VectorMA(startplane->normal, enterfrac, impactnormal, newimpactnormal);
- }
- }
- else
- {
- // moving out of brush
- if (d1 > 0)
- return 1;
- if (d2 < 0)
- continue;
- // leave
- f = d1 / f;
- if (leavefrac > f)
- leavefrac = f;
- }
- }
-
- // LordHavoc: we need an epsilon nudge here because for a point trace the
- // penetrating line segment is normally zero length if this brush was
- // generated from a polygon (infinitely thin), and could even be slightly
- // positive or negative due to rounding errors in that case.
- enterfrac -= (1.0 / 16384.0);
- if (leavefrac - enterfrac >= 0 && enterfrac > -1)
- {
- VectorCopy(newimpactnormal, impactnormal);
- enterfrac = bound(0, enterfrac, 1);
- return enterfrac;
- }
- return 1;
-}
-
-static colplaned_t polyd_planes[256 + 2];
-static colbrushd_t polyd_brush;
-double Collision_TraceBrushPolygonDouble(const colbrushd_t *thisbrush_start, const colbrushd_t *thisbrush_end, int numpoints, const double *points, double *impactnormal)
-{
- if (numpoints > 256)
- {
- Con_Printf("Polygon with more than 256 points not supported yet (fixme!)\n");
- return 1;
- }
- polyd_brush.numpoints = numpoints;
- polyd_brush.numplanes = numpoints + 2;
- polyd_brush.points = (colpointd_t *)points;
- polyd_brush.planes = polyd_planes;
- Collision_CalcPlanesForPolygonBrushDouble(&polyd_brush);
- return Collision_TraceBrushBrushDouble(thisbrush_start, thisbrush_end, &polyd_brush, &polyd_brush, impactnormal);
-}
-
-
-
-
-typedef struct colbrushbmodelinfo_s
-{
- model_t *model;
- const matrix4x4_t *modelmatrixstart;
- const matrix4x4_t *modelmatrixend;
- const colbrushf_t *thisbrush_start;
- const colbrushf_t *thisbrush_end;
- float impactnormal[3];
- float tempimpactnormal[3];
- float fraction;
- int startsolid;
- int allsolid;
-}
-colbrushbmodelinfo_t;
-
-static int colframecount = 1;
-
-void Collision_RecursiveTraceBrushNode(colbrushbmodelinfo_t *info, mnode_t *node)
-{
- if (node->contents)
- {
- // collide with surfaces marked by this leaf
- int i, *mark;
- float result;
- mleaf_t *leaf = (mleaf_t *)node;
- msurface_t *surf;
- for (i = 0, mark = leaf->firstmarksurface;i < leaf->nummarksurfaces;i++, mark++)
- {
- surf = info->model->brushq1.surfaces + *mark;
- // don't check a surface twice
- if (surf->colframe != colframecount)
- {
- surf->colframe = colframecount;
- if (surf->flags & SURF_SOLIDCLIP)
- {
- result = Collision_TraceBrushPolygonFloat(info->thisbrush_start, info->thisbrush_end, surf->poly_numverts, surf->poly_verts, info->tempimpactnormal, &info->startsolid, &info->allsolid);
- //result = Collision_TraceBrushPolygonTransformFloat(info->thisbrush_start, info->thisbrush_end, surf->poly_numverts, surf->poly_verts, info->tempimpactnormal, info->modelmatrixstart, info->modelmatrixend, &info->startsolid, &info->allsolid);
- if (info->fraction > result)
- {
- info->fraction = result;
- // use the surface's plane instead of the actual
- // collision plane because the actual collision plane
- // might be to the side (on a seam between polygons)
- // or something, we want objects to bounce off the
- // front...
- //if (surf->flags & SURF_PLANEBACK)
- // VectorNegate(surf->plane->normal, info->impactnormal);
- //else
- // VectorCopy(surf->plane->normal, info->impactnormal);
- VectorCopy(info->tempimpactnormal, info->impactnormal);
- }
- }
- }
- }
- }
- else
- {
- // recurse down node sides
- int i;
- float dist;
- colpointf_t *ps, *pe;
- // FIXME? if TraceBrushPolygonTransform were to be made usable, the
- // node planes would need to be transformed too
- dist = node->plane->dist - (1.0f / 8.0f);
- for (i = 0, ps = info->thisbrush_start->points, pe = info->thisbrush_end->points;i < info->thisbrush_start->numpoints;i++, ps++, pe++)
- {
- if (DotProduct(ps->v, node->plane->normal) > dist || DotProduct(pe->v, node->plane->normal) > dist)
- {
- Collision_RecursiveTraceBrushNode(info, node->children[0]);
- break;
- }
- }
- dist = node->plane->dist + (1.0f / 8.0f);
- for (i = 0, ps = info->thisbrush_start->points, pe = info->thisbrush_end->points;i < info->thisbrush_start->numpoints;i++, ps++, pe++)
- {
- if (DotProduct(ps->v, node->plane->normal) < dist || DotProduct(pe->v, node->plane->normal) < dist)
- {
- Collision_RecursiveTraceBrushNode(info, node->children[1]);
- break;
- }
- }
- }
-}
-
-float Collision_TraceBrushBModel(const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, model_t *model, float *impactnormal, int *startsolid, int *allsolid)
-{
- colbrushbmodelinfo_t info;
- colframecount++;
- info.model = model;
- info.thisbrush_start = thisbrush_start;
- info.thisbrush_end = thisbrush_end;
- info.fraction = 1;
- info.startsolid = false;
- info.allsolid = false;
- Collision_RecursiveTraceBrushNode(&info, model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode);
- if (info.fraction < 1)
- VectorCopy(info.impactnormal, impactnormal);
- if (startsolid)
- *startsolid = info.startsolid;
- if (allsolid)
- *allsolid = info.allsolid;
- return info.fraction;
-}
-
-float Collision_TraceBrushBModelTransform(const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, model_t *model, float *impactnormal, const matrix4x4_t *modelmatrixstart, const matrix4x4_t *modelmatrixend, int *startsolid, int *allsolid)
-{
- colbrushbmodelinfo_t info;
- colframecount++;
- info.model = model;
- info.modelmatrixstart = modelmatrixstart;
- info.modelmatrixend = modelmatrixend;
- info.thisbrush_start = thisbrush_start;
- info.thisbrush_end = thisbrush_end;
- info.fraction = 1;
- info.startsolid = false;
- info.allsolid = false;
- Collision_RecursiveTraceBrushNode(&info, model->brushq1.nodes);
- if (info.fraction < 1)
- VectorCopy(info.impactnormal, impactnormal);
- if (startsolid)
- *startsolid = info.startsolid;
- if (allsolid)
- *allsolid = info.allsolid;
- return info.fraction;
+ Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, &polyf_brushstart, &polyf_brushend);
}
return brush;
}
-void Collision_PolygonClipTrace (trace_t *trace, const void *cent, model_t *cmodel, const vec3_t corigin, const vec3_t cangles, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end)
-{
- vec3_t impactnormal;
- //vec3_t mins2, maxs2;
- matrix4x4_t cmatrix, cimatrix, startmatrix, endmatrix;
- matrix4x4_t mstartmatrix, mendmatrix, identitymatrix;
- colbrushf_t *thisbrush_start, *thisbrush_end, *cbrush;
-
- Matrix4x4_CreateFromQuakeEntity(&cmatrix, corigin[0], corigin[1], corigin[2], cangles[0], cangles[1], cangles[2], 1);
- Matrix4x4_Invert_Simple(&cimatrix, &cmatrix);
- Matrix4x4_CreateTranslate(&startmatrix, start[0], start[1], start[2]);
- Matrix4x4_CreateTranslate(&endmatrix, end[0], end[1], end[2]);
-
- Matrix4x4_CreateIdentity(&identitymatrix);
- Matrix4x4_Concat(&mstartmatrix, &cimatrix, &startmatrix);
- Matrix4x4_Concat(&mendmatrix, &cimatrix, &endmatrix);
- thisbrush_start = Collision_BrushForBox(&mstartmatrix, mins, maxs);
- //mins2[0] = mins[0] - 0.0625;mins2[1] = mins[1] - 0.0625;mins2[2] = mins[2] - 0.0625;
- //maxs2[0] = maxs[0] + 0.0625;maxs2[1] = maxs[1] + 0.0625;maxs2[2] = maxs[2] + 0.0625;
- thisbrush_end = Collision_BrushForBox(&mendmatrix, mins, maxs);
-
- //Collision_PrintBrushAsQHull(thisbrush_start, "thisbrush_start");
- //Collision_PrintBrushAsQHull(thisbrush_end, "thisbrush_end");
- memset (trace, 0, sizeof(trace_t));
- if (cmodel && cmodel->type == mod_brush)
- {
- // brush model
- trace->fraction = Collision_TraceBrushBModel(thisbrush_start, thisbrush_end, cmodel, impactnormal, &trace->startsolid, &trace->allsolid);
- //trace->fraction = Collision_TraceBrushBModelTransform(thisbrush_start, thisbrush_end, cmodel, trace->plane.normal, &cmatrix, &cmatrix, &trace->startsolid, &trace->allsolid);
- }
- else
- {
- // bounding box
- cbrush = Collision_BrushForBox(&identitymatrix, cmins, cmaxs);
- trace->fraction = Collision_TraceBrushBrushFloat(thisbrush_start, thisbrush_end, cbrush, cbrush, impactnormal, &trace->startsolid, &trace->allsolid);
- //cbrush = Collision_BrushForBox(&cmatrix, cmins, cmaxs);
- //trace->fraction = Collision_TraceBrushBrushFloat(thisbrush_start, thisbrush_end, cbrush, cbrush, trace->plane.normal, &trace->startsolid, &trace->allsolid);
- }
-
- if (trace->fraction < 0 || trace->fraction > 1)
- Con_Printf("fraction out of bounds %f %s:%d\n", trace->fraction, __FILE__, __LINE__);
-
- if (trace->fraction < 1)
- {
- trace->ent = (void *) cent;
- VectorBlend(start, end, trace->fraction, trace->endpos);
- Matrix4x4_Transform(&cmatrix, impactnormal, trace->plane.normal);
- VectorNormalize(trace->plane.normal);
- //Con_Printf("fraction %f normal %f %f %f\n", trace->fraction, trace->plane.normal[0], trace->plane.normal[1], trace->plane.normal[2]);
- }
- else
- VectorCopy(end, trace->endpos);
-}
-
-
// LordHavoc: currently unused and not yet tested
// note: this can be used for tracing a moving sphere vs a stationary sphere,
// by simply adding the moving sphere's radius to the sphereradius parameter,
projects / xonotic / darkplaces.git / blobdiff