#include "quakedef.h"
#include "polygon.h"
-#define COLLISION_SNAPSCALE (8.0f)
+#define COLLISION_SNAPSCALE (32.0f)
#define COLLISION_SNAP (1.0f / COLLISION_SNAPSCALE)
+#define COLLISION_PLANE_DIST_EPSILON (1.0f / 32.0f)
cvar_t collision_impactnudge = {0, "collision_impactnudge", "0.03125", "how much to back off from the impact"};
cvar_t collision_startnudge = {0, "collision_startnudge", "0", "how much to bias collision trace start"};
for (k = 0;k < brush->numplanes;k++)
{
d = DotProduct(brush->points[j].v, brush->planes[k].normal) - brush->planes[k].dist;
- if (d > (1.0f / 8.0f))
+ if (d > COLLISION_PLANE_DIST_EPSILON)
{
Con_Printf("Collision_ValidateBrush: point #%i (%f %f %f) infront of plane #%i (%f %f %f %f)\n", j, brush->points[j].v[0], brush->points[j].v[1], brush->points[j].v[2], k, brush->planes[k].normal[0], brush->planes[k].normal[1], brush->planes[k].normal[2], brush->planes[k].dist);
printbrush = true;
}
- if (fabs(d) > 0.125f)
+ if (fabs(d) > COLLISION_PLANE_DIST_EPSILON)
pointsoffplanes++;
else
pointonplanes++;
}
-colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes)
+colbrushf_t *Collision_NewBrushFromPlanes(mempool_t *mempool, int numoriginalplanes, const colplanef_t *originalplanes, int supercontents)
{
// TODO: planesbuf could be replaced by a remapping table
int j, k, m, w;
int numpointsbuf = 0, maxpointsbuf = 256, numplanesbuf = 0, maxplanesbuf = 256, numelementsbuf = 0, maxelementsbuf = 256;
+ double maxdist;
colbrushf_t *brush;
colpointf_t pointsbuf[256];
colplanef_t planesbuf[256];
memset(polypointbuf, 0, sizeof(polypointbuf));
memset(p, 0, sizeof(p));
#endif
+ // figure out how large a bounding box we need to properly compute this brush
+ maxdist = 0;
+ for (j = 0;j < numoriginalplanes;j++)
+ maxdist = max(maxdist, originalplanes[j].dist);
+ // now make it large enough to enclose the entire brush, and round it off to a reasonable multiple of 1024
+ maxdist = floor(maxdist * (4.0 / 1024.0) + 1) * 1024.0;
// construct a collision brush (points, planes, and renderable mesh) from
// a set of planes, this also optimizes out any unnecessary planes (ones
// whose polygon is clipped away by the other planes)
// create a large polygon from the plane
w = 0;
- PolygonD_QuadForPlane(p[w], originalplanes[j].normal[0], originalplanes[j].normal[1], originalplanes[j].normal[2], originalplanes[j].dist, 1024.0*1024.0*1024.0);
+ PolygonD_QuadForPlane(p[w], originalplanes[j].normal[0], originalplanes[j].normal[1], originalplanes[j].normal[2], originalplanes[j].dist, maxdist);
pnumpoints = 4;
// clip it by all other planes
for (k = 0;k < numoriginalplanes && pnumpoints && pnumpoints <= pmaxpoints;k++)
{
// we want to keep the inside of the brush plane so we flip
// the cutting plane
- PolygonD_Divide(pnumpoints, p[w], -originalplanes[k].normal[0], -originalplanes[k].normal[1], -originalplanes[k].normal[2], -originalplanes[k].dist, 1.0/32.0, pmaxpoints, p[!w], &pnumpoints, 0, NULL, NULL, NULL);
+ PolygonD_Divide(pnumpoints, p[w], -originalplanes[k].normal[0], -originalplanes[k].normal[1], -originalplanes[k].normal[2], -originalplanes[k].dist, COLLISION_PLANE_DIST_EPSILON, pmaxpoints, p[!w], &pnumpoints, 0, NULL, NULL, NULL);
w = !w;
}
}
int l, m;
m = 0;
for (l = 0;l < numoriginalplanes;l++)
- if (fabs(DotProduct(&p[w][k*3], originalplanes[l].normal) - originalplanes[l].dist) < 1.0/8.0)
+ if (fabs(DotProduct(&p[w][k*3], originalplanes[l].normal) - originalplanes[l].dist) < COLLISION_PLANE_DIST_EPSILON)
m++;
if (m < 3)
break;
// add the new plane
VectorCopy(originalplanes[j].normal, planesbuf[numplanesbuf].normal);
planesbuf[numplanesbuf].dist = originalplanes[j].dist;
- planesbuf[numplanesbuf].supercontents = originalplanes[j].supercontents;
planesbuf[numplanesbuf].q3surfaceflags = originalplanes[j].q3surfaceflags;
planesbuf[numplanesbuf].texture = originalplanes[j].texture;
numplanesbuf++;
for (j = 0;j < numplanesbuf;j++)
{
float d = furthestplanedist_float(planesbuf[j].normal, pointsbuf, numpointsbuf);
- if (fabs(planesbuf[j].dist - d) > (1.0f/32.0f))
+ if (fabs(planesbuf[j].dist - d) > COLLISION_PLANE_DIST_EPSILON)
Con_Printf("plane %f %f %f %f mismatches dist %f\n", planesbuf[j].normal[0], planesbuf[j].normal[1], planesbuf[j].normal[2], planesbuf[j].dist, d);
}
// allocate the brush and copy to it
brush = (colbrushf_t *)Mem_Alloc(mempool, sizeof(colbrushf_t) + sizeof(colpointf_t) * numpointsbuf + sizeof(colplanef_t) * numplanesbuf + sizeof(int) * numelementsbuf);
+ brush->supercontents = supercontents;
brush->numplanes = numplanesbuf;
brush->numpoints = numpointsbuf;
brush->numtriangles = numelementsbuf / 3;
brush->planes[j].normal[1] = planesbuf[j].normal[1];
brush->planes[j].normal[2] = planesbuf[j].normal[2];
brush->planes[j].dist = planesbuf[j].dist;
- brush->planes[j].supercontents = planesbuf[j].supercontents;
brush->planes[j].q3surfaceflags = planesbuf[j].q3surfaceflags;
brush->planes[j].texture = planesbuf[j].texture;
- brush->supercontents |= brush->planes[j].supercontents;
}
for (j = 0;j < brush->numtriangles * 3;j++)
brush->elements[j] = elementsbuf[j];
{
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))
+ if (DotProduct(p->v, brush->planes[i].normal) > brush->planes[i].dist + COLLISION_PLANE_DIST_EPSILON)
Con_Printf("Error in brush plane generation, plane %i\n", i);
}
}
// NOTE: start and end of each brush pair must have same numplanes/numpoints
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 = true, fendsolid = true, brushsolid, hitsupercontents = 0, hitq3surfaceflags = 0;
+ int nplane, nplane2, fstartsolid = true, fendsolid = true, brushsolid, hitq3surfaceflags = 0;
float enterfrac = -1, leavefrac = 1, d1, d2, f, imove, newimpactnormal[3], enterfrac2 = -1;
const colplanef_t *startplane, *endplane;
texture_t *hittexture = NULL;
return;
}
f = furthestplanedist_float(startplane->normal, thisbrush_start->points, thisbrush_start->numpoints);
- if (fabs(f - startplane->dist) > 0.125f)
+ if (fabs(f - startplane->dist) > COLLISION_PLANE_DIST_EPSILON)
Con_Printf("startplane->dist %f != calculated %f (thisbrush_start)\n", startplane->dist, f);
}
d1 = nearestplanedist_float(startplane->normal, thisbrush_start->points, thisbrush_start->numpoints) - furthestplanedist_float(startplane->normal, thatbrush_start->points, thatbrush_start->numpoints) - collision_startnudge.value;
return;
}
f = furthestplanedist_float(startplane->normal, thatbrush_start->points, thatbrush_start->numpoints);
- if (fabs(f - startplane->dist) > 0.125f)
+ if (fabs(f - startplane->dist) > COLLISION_PLANE_DIST_EPSILON)
Con_Printf("startplane->dist %f != calculated %f (thatbrush_start)\n", startplane->dist, f);
}
d1 = nearestplanedist_float(startplane->normal, thisbrush_start->points, thisbrush_start->numpoints) - startplane->dist - collision_startnudge.value;
enterfrac = f;
enterfrac2 = f - collision_impactnudge.value * imove;
VectorLerp(startplane->normal, enterfrac, endplane->normal, newimpactnormal);
- hitsupercontents = startplane->supercontents;
hitq3surfaceflags = startplane->q3surfaceflags;
hittexture = startplane->texture;
}
if (enterfrac < trace->realfraction)
{
enterfrac2 = enterfrac - collision_impactnudge.value * imove;
- trace->hitsupercontents = thatbrush_start->planes[0].supercontents;
+ trace->hitsupercontents = thatbrush_start->supercontents;
trace->hitq3surfaceflags = thatbrush_start->planes[0].q3surfaceflags;
trace->hittexture = thatbrush_start->planes[0].texture;
trace->realfraction = bound(0, enterfrac, 1);
else
#endif
{
- trace->hitsupercontents = hitsupercontents;
+ trace->hitsupercontents = thatbrush_start->supercontents;
trace->hitq3surfaceflags = hitq3surfaceflags;
trace->hittexture = hittexture;
trace->realfraction = bound(0, enterfrac, 1);
// NOTE: start and end brush pair must have same numplanes/numpoints
void Collision_TraceLineBrushFloat(trace_t *trace, const vec3_t linestart, const vec3_t lineend, const colbrushf_t *thatbrush_start, const colbrushf_t *thatbrush_end)
{
- int nplane, fstartsolid = true, fendsolid = true, brushsolid, hitsupercontents = 0, hitq3surfaceflags = 0;
+ int nplane, fstartsolid = true, fendsolid = true, brushsolid, hitq3surfaceflags = 0;
float enterfrac = -1, leavefrac = 1, d1, d2, f, imove, newimpactnormal[3], enterfrac2 = -1;
const colplanef_t *startplane, *endplane;
texture_t *hittexture = NULL;
if (thatbrush_start->numpoints)
{
f = furthestplanedist_float(startplane->normal, thatbrush_start->points, thatbrush_start->numpoints);
- if (fabs(f - startplane->dist) > 0.125f)
+ if (fabs(f - startplane->dist) > COLLISION_PLANE_DIST_EPSILON)
Con_Printf("startplane->dist %f != calculated %f\n", startplane->dist, f);
}
}
enterfrac = f;
enterfrac2 = f - collision_impactnudge.value * imove;
VectorLerp(startplane->normal, enterfrac, endplane->normal, newimpactnormal);
- hitsupercontents = startplane->supercontents;
hitq3surfaceflags = startplane->q3surfaceflags;
hittexture = startplane->texture;
}
if (enterfrac < trace->realfraction)
{
enterfrac2 = enterfrac - collision_impactnudge.value * imove;
- trace->hitsupercontents = hitsupercontents;
+ trace->hitsupercontents = thatbrush_start->supercontents;
trace->hitq3surfaceflags = hitq3surfaceflags;
trace->hittexture = hittexture;
trace->realfraction = bound(0, enterfrac, 1);
else
#endif
{
- trace->hitsupercontents = hitsupercontents;
+ trace->hitsupercontents = thatbrush_start->supercontents;
trace->hitq3surfaceflags = hitq3surfaceflags;
trace->hittexture = hittexture;
trace->realfraction = bound(0, enterfrac, 1);
polyf_brush.supercontents = supercontents;
for (i = 0;i < polyf_brush.numplanes;i++)
{
- polyf_brush.planes[i].supercontents = supercontents;
polyf_brush.planes[i].q3surfaceflags = q3surfaceflags;
polyf_brush.planes[i].texture = texture;
}
Matrix4x4_Transform(polygonmatrixend, points + i * 3, polyf_brushend.points[i].v);
for (i = 0;i < polyf_brushstart.numplanes;i++)
{
- polyf_brushstart.planes[i].supercontents = supercontents;
polyf_brushstart.planes[i].q3surfaceflags = q3surfaceflags;
polyf_brushstart.planes[i].texture = texture;
}
brush->supercontents = supercontents;
for (j = 0;j < brush->numplanes;j++)
{
- brush->planes[j].supercontents = supercontents;
brush->planes[j].q3surfaceflags = q3surfaceflags;
brush->planes[j].texture = texture;
brush->planes[j].dist = furthestplanedist_float(brush->planes[j].normal, brush->points, brush->numpoints);
projects / xonotic / darkplaces.git / blobdiff