VectorSubtract(brush->points[i].v, brush->points[j].v, brush->edgedirs[j].v);
}
-colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents, int q3surfaceflags, texture_t *texture, int hasaabbplanes)
+colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents, int q3surfaceflags, const texture_t *texture, int hasaabbplanes)
{
// TODO: planesbuf could be replaced by a remapping table
int j, k, l, m, w, xyzflags;
}
}
-colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents, int q3surfaceflags, texture_t *texture)
+colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents, int q3surfaceflags, const texture_t *texture)
{
colbrushf_t *brush;
brush = (colbrushf_t *)Mem_Alloc(mempool, sizeof(colbrushf_t) + sizeof(colplanef_t) * (numpoints + 2) + sizeof(colpointf_t) * numpoints);
vec4_t startplane;
vec4_t endplane;
vec4_t newimpactplane;
- texture_t *hittexture = NULL;
+ const texture_t *hittexture = NULL;
vec_t startdepth = 1;
vec3_t startdepthnormal;
vec4_t startplane;
vec4_t endplane;
vec4_t newimpactplane;
- texture_t *hittexture = NULL;
+ const texture_t *hittexture = NULL;
vec_t startdepth = 1;
vec3_t startdepthnormal;
}
}
-void Collision_TraceBrushTriangleMeshFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs)
+void Collision_TraceBrushTriangleMeshFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, const texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs)
{
int i;
colpointf_t points[3];
}
}
-void Collision_TraceLineTriangleMeshFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs)
+void Collision_TraceLineTriangleMeshFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, const texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs)
{
int i;
// FIXME: snap vertices?
}
}
-void Collision_BrushForBox(colboxbrushf_t *boxbrush, const vec3_t mins, const vec3_t maxs, int supercontents, int q3surfaceflags, texture_t *texture)
+void Collision_TraceBrushTriangleFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const float *v0, const float *v1, const float *v2, int supercontents, int q3surfaceflags, const texture_t *texture)
+{
+ int i;
+ colpointf_t points[3];
+ colpointf_t edgedirs[3];
+ colplanef_t planes[5];
+ colbrushf_t brush;
+ memset(&brush, 0, sizeof(brush));
+ brush.isaabb = false;
+ brush.hasaabbplanes = false;
+ brush.numpoints = 3;
+ brush.numedgedirs = 3;
+ brush.numplanes = 5;
+ brush.points = points;
+ brush.edgedirs = edgedirs;
+ brush.planes = planes;
+ brush.supercontents = supercontents;
+ brush.q3surfaceflags = q3surfaceflags;
+ brush.texture = texture;
+ for (i = 0;i < brush.numplanes;i++)
+ {
+ brush.planes[i].q3surfaceflags = q3surfaceflags;
+ brush.planes[i].texture = texture;
+ }
+ VectorCopy(v0, points[0].v);
+ VectorCopy(v1, points[1].v);
+ VectorCopy(v2, points[2].v);
+ Collision_SnapCopyPoints(brush.numpoints, points, points, COLLISION_SNAPSCALE, COLLISION_SNAP);
+ Collision_CalcEdgeDirsForPolygonBrushFloat(&brush);
+ Collision_CalcPlanesForPolygonBrushFloat(&brush);
+ //Collision_PrintBrushAsQHull(&brush, "brush");
+ Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, &brush, &brush);
+}
+
+void Collision_BrushForBox(colboxbrushf_t *boxbrush, const vec3_t mins, const vec3_t maxs, int supercontents, int q3surfaceflags, const texture_t *texture)
{
int i;
memset(boxbrush, 0, sizeof(*boxbrush));
return impactdist / linelength;
}
-void Collision_TraceLineTriangleFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const float *point0, const float *point1, const float *point2, int supercontents, int q3surfaceflags, texture_t *texture)
+void Collision_TraceLineTriangleFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const float *point0, const float *point1, const float *point2, int supercontents, int q3surfaceflags, const texture_t *texture)
{
#if 1
// more optimized
// the q3 surfaceflags of the impacted surface
int hitq3surfaceflags;
// the texture of the impacted surface
- struct texture_s *hittexture;
+ const struct texture_s *hittexture;
// initially false, set when the start leaf is found
// (set only by Q1BSP tracing and entity box tracing)
int startfound;
trace_t;
void Collision_Init(void);
-void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture);
-void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture);
+void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture);
+void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture);
typedef struct colpointf_s
{
typedef struct colplanef_s
{
- struct texture_s *texture;
+ const struct texture_s *texture;
int q3surfaceflags;
vec3_t normal;
vec_t dist;
int numtriangles;
int *elements;
// texture data for cases where an edgedir is used
- struct texture_s *texture;
+ const struct texture_s *texture;
int q3surfaceflags;
// optimized collisions for common cases
int isaabb; // indicates this is an axis aligned box
colboxbrushf_t;
void Collision_CalcPlanesForPolygonBrushFloat(colbrushf_t *brush);
-colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents, int q3surfaceflags, texture_t *texture);
-colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents, int q3surfaceflags, texture_t *texture, int hasaabbplanes);
+colbrushf_t *Collision_AllocBrushFromPermanentPolygonFloat(mempool_t *mempool, int numpoints, float *points, int supercontents, int q3surfaceflags, const texture_t *texture);
+colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents, int q3surfaceflags, const texture_t *texture, int hasaabbplanes);
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);
-void Collision_TraceBrushTriangleMeshFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs);
+void Collision_TraceBrushTriangleMeshFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, const texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs);
void Collision_TraceLineBrushFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const colbrushf_t *thatbrush_start, const colbrushf_t *thatbrush_end);
-void Collision_TraceLineTriangleMeshFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs);
+void Collision_TraceLineTriangleMeshFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, int numtriangles, const int *element3i, const float *vertex3f, int stride, float *bbox6f, int supercontents, int q3surfaceflags, const texture_t *texture, const vec3_t segmentmins, const vec3_t segmentmaxs);
void Collision_TracePointBrushFloat(trace_t *trace, const vec3_t point, const colbrushf_t *thatbrush);
qboolean Collision_PointInsideBrushFloat(const vec3_t point, const colbrushf_t *brush);
-void Collision_BrushForBox(colboxbrushf_t *boxbrush, const vec3_t mins, const vec3_t maxs, int supercontents, int q3surfaceflags, texture_t *texture);
+void Collision_BrushForBox(colboxbrushf_t *boxbrush, const vec3_t mins, const vec3_t maxs, int supercontents, int q3surfaceflags, const texture_t *texture);
void Collision_BoundingBoxOfBrushTraceSegment(const colbrushf_t *start, const colbrushf_t *end, vec3_t mins, vec3_t maxs, float startfrac, float endfrac);
float Collision_ClipTrace_Line_Sphere(double *linestart, double *lineend, double *sphereorigin, double sphereradius, double *impactpoint, double *impactnormal);
-void Collision_TraceLineTriangleFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const float *point0, const float *point1, const float *point2, int supercontents, int q3surfaceflags, texture_t *texture);
+void Collision_TraceLineTriangleFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const float *point0, const float *point1, const float *point2, int supercontents, int q3surfaceflags, const texture_t *texture);
+void Collision_TraceBrushTriangleFloat(trace_t *trace, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const float *v0, const float *v1, const float *v2, int supercontents, int q3surfaceflags, const texture_t *texture);
// traces a box move against a single entity
// mins and maxs are relative
cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
cvar_t mod_q3bsp_nolightmaps = {CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
cvar_t mod_q3bsp_tracelineofsight_brushes = {0, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
+cvar_t mod_collision_bih = {0, "mod_collision_bih", "0", "enables use of generated Bounding Interval Hierarchy tree instead of compiled bsp tree in collision code"};
static texture_t mod_q1bsp_texture_solid;
static texture_t mod_q1bsp_texture_sky;
Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
+ Cvar_RegisterVariable(&mod_collision_bih);
memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
return Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
}
-void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture)
+void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
{
#if 1
colbrushf_t cbox;
#endif
}
-void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture)
+void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
{
memset(trace, 0, sizeof(trace_t));
trace->fraction = 1;
}
}
+static void Mod_BIH_TracePoint_RecursiveBIHNode(trace_t *trace, dp_model_t *model, int nodenum, const vec3_t point)
+{
+ const bih_leaf_t *leaf;
+ const bih_node_t *node;
+ const colbrushf_t *brush;
+ int axis;
+ while (nodenum >= 0)
+ {
+ node = model->collision_bih.nodes + nodenum;
+ axis = node->type - BIH_SPLITX;
+ if (point[axis] <= node->backmax)
+ {
+ if (point[axis] >= node->frontmin)
+ Mod_BIH_TracePoint_RecursiveBIHNode(trace, model, node->front, point);
+ nodenum = node->back;
+ }
+ else if (point[axis] >= node->frontmin)
+ nodenum = node->front;
+ else // no overlap with either child? just return
+ return;
+ }
+ if (!model->collision_bih.leafs)
+ return;
+ leaf = model->collision_bih.leafs + (-1-nodenum);
+ switch(leaf->type)
+ {
+ case BIH_LEAF:
+ // brush
+ brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
+ Collision_TracePointBrushFloat(trace, point, brush);
+ break;
+ case BIH_LEAF + 1:
+ // triangle - skipped because they have no volume
+ break;
+ default:
+ break;
+ }
+}
+
+static void Mod_BIH_TraceLine_RecursiveBIHNode(trace_t *trace, dp_model_t *model, int nodenum, const vec3_t start, const vec3_t end, const vec3_t linestart, const vec3_t lineend)
+{
+ const bih_leaf_t *leaf;
+ const bih_node_t *node;
+ const colbrushf_t *brush;
+ const int *e;
+ const texture_t *texture;
+ int axis;
+#if 0
+ int sideflags;
+ vec_t frontdist1;
+ vec_t frontdist2;
+ vec_t frontfrac;
+ vec_t backdist1;
+ vec_t backdist2;
+ vec_t backfrac;
+ vec3_t clipped[2];
+#endif
+ vec3_t segmentmins;
+ vec3_t segmentmaxs;
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ while (nodenum >= 0)
+ {
+ node = model->collision_bih.nodes + nodenum;
+#if 0
+ if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
+ return;
+#endif
+ axis = node->type - BIH_SPLITX;
+#if 1
+ if (segmentmins[axis] <= node->backmax)
+ {
+ if (segmentmaxs[axis] >= node->frontmin)
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, end, linestart, lineend);
+ nodenum = node->back;
+ }
+ else if (segmentmaxs[axis] >= node->frontmin)
+ nodenum = node->front;
+ else
+ return; // trace falls between children
+#else
+ frontdist1 = start[axis] - node->backmax;
+ frontdist2 = end[axis] - node->backmax;
+ backdist1 = start[axis] - node->frontmin;
+ backdist2 = end[axis] - node->frontmin;
+ sideflags = 0;
+ if (frontdist1 < 0)
+ sideflags |= 1;
+ if (frontdist2 < 0)
+ sideflags |= 2;
+ if (backdist1 < 0)
+ sideflags |= 4;
+ if (backdist2 < 0)
+ sideflags |= 8;
+ switch(sideflags)
+ {
+ case 0:
+ // start end START END
+ nodenum = node->front;
+ continue;
+ case 1:
+ // START end START END
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[0]);
+ start = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->front;
+ break;
+ case 2:
+ // start END START END
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[0]);
+ end = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->front;
+ break;
+ case 3:
+ // START END START END
+ return; // line falls in gap between children
+ case 4:
+ // start end start END
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, end, linestart, lineend);
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ end = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 5:
+ // START end start END
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[1]);
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, clipped[1], end, linestart, lineend);
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ end = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 6:
+ // start END start END
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[1]);
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, clipped[1], linestart, lineend);
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ end = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 7:
+ // START END start END
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ end = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 8:
+ // start end START end
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, end, linestart, lineend);
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ start = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 9:
+ // START end START end
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[1]);
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, clipped[1], end, linestart, lineend);
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ start = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 10:
+ // start END START end
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[1]);
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, clipped[1], linestart, lineend);
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ start = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 11:
+ // START END START end
+ backfrac = backdist1 / (backdist1 - backdist2);
+ VectorLerp(start, backfrac, end, clipped[0]);
+ start = clipped[0];
+ segmentmins[0] = min(start[0], end[0]);
+ segmentmins[1] = min(start[1], end[1]);
+ segmentmins[2] = min(start[2], end[2]);
+ segmentmaxs[0] = max(start[0], end[0]);
+ segmentmaxs[1] = max(start[1], end[1]);
+ segmentmaxs[2] = max(start[2], end[2]);
+ nodenum = node->back;
+ break;
+ case 12:
+ // start end start end
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, end, linestart, lineend);
+ nodenum = node->back;
+ break;
+ case 13:
+ // START end start end
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[1]);
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, clipped[1], end, linestart, lineend);
+ nodenum = node->back;
+ break;
+ case 14:
+ // start END start end
+ frontfrac = frontdist1 / (frontdist1 - frontdist2);
+ VectorLerp(start, frontfrac, end, clipped[1]);
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, node->front, start, clipped[1], linestart, lineend);
+ nodenum = node->back;
+ break;
+ case 15:
+ // START END start end
+ nodenum = node->back;
+ continue;
+ }
+#endif
+ }
+ if (!model->collision_bih.leafs)
+ return;
+ leaf = model->collision_bih.leafs + (-1-nodenum);
+#if 1
+ if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
+ return;
+#endif
+ switch(leaf->type)
+ {
+ case BIH_LEAF:
+ // brush
+ brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
+ Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
+ break;
+ case BIH_LEAF + 1:
+ // triangle
+ e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
+ texture = model->data_textures + leaf->textureindex;
+ Collision_TraceLineTriangleFloat(trace, linestart, lineend, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
+ break;
+ default:
+ break;
+ }
+}
+
+static void Mod_BIH_TraceBrush_RecursiveBIHNode(trace_t *trace, dp_model_t *model, int nodenum, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, const vec3_t segmentmins, const vec3_t segmentmaxs)
+{
+ const bih_leaf_t *leaf;
+ const bih_node_t *node;
+ const colbrushf_t *brush;
+ const int *e;
+ const texture_t *texture;
+ int axis;
+ while (nodenum >= 0)
+ {
+ node = model->collision_bih.nodes + nodenum;
+ axis = node->type - BIH_SPLITX;
+#if 0
+#if 0
+ if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
+ return;
+#endif
+ Mod_BIH_TraceBrush_RecursiveBIHNode(trace, model, node->front, thisbrush_start, thisbrush_end, segmentmins, segmentmaxs);
+ nodenum = node->back;
+ continue;
+#endif
+ if (segmentmins[axis] <= node->backmax)
+ {
+ if (segmentmaxs[axis] >= node->frontmin)
+ Mod_BIH_TraceBrush_RecursiveBIHNode(trace, model, node->front, thisbrush_start, thisbrush_end, segmentmins, segmentmaxs);
+ nodenum = node->back;
+ }
+ else if (segmentmaxs[axis] >= node->frontmin)
+ nodenum = node->front;
+ else
+ return; // trace falls between children
+ }
+ if (!model->collision_bih.leafs)
+ return;
+ leaf = model->collision_bih.leafs + (-1-nodenum);
+#if 1
+ if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
+ return;
+#endif
+ switch(leaf->type)
+ {
+ case BIH_LEAF:
+ // brush
+ brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
+ Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
+ break;
+ case BIH_LEAF + 1:
+ // triangle
+ e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
+ texture = model->data_textures + leaf->textureindex;
+ Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
+ break;
+ default:
+ break;
+ }
+}
+
static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t point, int markframe)
{
int i;
trace->fraction = 1;
trace->realfraction = 1;
trace->hitsupercontentsmask = hitsupercontentsmask;
- if (model->brush.submodel)
+ if (mod_collision_bih.integer)
+ Mod_BIH_TracePoint_RecursiveBIHNode(trace, model, model->collision_bih.rootnode, start);
+ else if (model->brush.submodel)
{
for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
if (brush->colbrushf)
segmentmaxs[0] = max(start[0], end[0]) + 1;
segmentmaxs[1] = max(start[1], end[1]) + 1;
segmentmaxs[2] = max(start[2], end[2]) + 1;
- if (model->brush.submodel)
+ if (mod_collision_bih.integer)
+ Mod_BIH_TraceLine_RecursiveBIHNode(trace, model, model->collision_bih.rootnode, start, end, start, end);
+ else if (model->brush.submodel)
{
for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
if (brush->colbrushf)
VectorAdd(end, boxmaxs, boxendmaxs);
Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
- if (model->brush.submodel)
+ if (mod_collision_bih.integer)
+ Mod_BIH_TraceBrush_RecursiveBIHNode(trace, model, model->collision_bih.rootnode, &thisbrush_start.brush, &thisbrush_end.brush, segmentmins, segmentmaxs);
+ else if (model->brush.submodel)
{
for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
if (brush->colbrushf)
int i;
int supercontents = 0;
q3mbrush_t *brush;
+ if (mod_collision_bih.integer)
+ {
+ trace_t trace;
+ Mod_Q3BSP_TracePoint(model, NULL, NULL, &trace, point, 0);
+ supercontents = trace.startsupercontents;
+ }
// test if the point is inside each brush
- if (model->brush.submodel)
+ else if (model->brush.submodel)
{
// submodels are effectively one leaf
for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
surface = model->data_surfaces + model->firstmodelsurface;
for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
bihnumleafs += surface->num_collisiontriangles;
- bihmaxnodes = bihnumleafs >> 1;
+ bihmaxnodes = bihnumleafs - 1;
// allocate the memory for the BIH leaf nodes
bihleafs = Mem_Alloc(loadmodel->mempool, sizeof(bih_leaf_t) * bihnumleafs);
bihleafs[bihleafindex].textureindex = brush->texture - model->data_textures;
bihleafs[bihleafindex].itemindex = brushindex+model->firstmodelbrush;
VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].mins);
- VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].maxs);
+ VectorCopy(brush->colbrushf->maxs, bihleafs[bihleafindex].maxs);
bihleafindex++;
}
collisionvertex3f = model->brush.data_collisionvertex3f;
for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
{
- e = collisionelement3i + surface->num_firstcollisiontriangle;
- for (triangleindex = 0;triangleindex < surface->num_collisiontriangles;triangleindex++)
+ e = collisionelement3i + 3*surface->num_firstcollisiontriangle;
+ for (triangleindex = 0;triangleindex < surface->num_collisiontriangles;triangleindex++, e += 3)
{
bihleafs[bihleafindex].type = BIH_LEAF + 1;
bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firstcollisiontriangle;
- bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0]));
- bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1]));
- bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2]));
- bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0]));
- bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1]));
- bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2]));
+ bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) - 1;
+ bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) - 1;
+ bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) - 1;
+ bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) + 1;
+ bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) + 1;
+ bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) + 1;
bihleafindex++;
}
}
projects / xonotic / darkplaces.git / commitdiff