12 |
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#include "rhdisp.h" |
13 |
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#include "rhdriver.h" |
14 |
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|
15 |
+ |
#ifndef MAXDIST |
16 |
+ |
#define MAXDIST 13 /* maximum distance outside section */ |
17 |
+ |
#endif |
18 |
+ |
|
19 |
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extern GCOORD *getviewcells(); |
20 |
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|
21 |
+ |
static VIEW dvw; /* current view corresponding to beam list */ |
22 |
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|
23 |
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typedef struct { |
24 |
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int hd; /* holodeck section number (-1 if inactive) */ |
25 |
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int i[3]; /* voxel index (may be outside section) */ |
162 |
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} |
163 |
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|
164 |
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|
165 |
+ |
cbeamadj(v, hr, vr) /* adjust our beam list */ |
166 |
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VIEW *v; |
167 |
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int hr, vr; |
168 |
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{ |
169 |
+ |
register PACKHEAD *pa; |
170 |
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register int i; |
171 |
+ |
int n; |
172 |
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/* first handle additions */ |
173 |
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pa = (PACKHEAD *)malloc(xcbeams*sizeof(PACKHEAD)); |
174 |
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if (xcbeams && pa == NULL) |
175 |
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goto memerr; |
176 |
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for (i = xcbeams; i--; ) { |
177 |
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pa[i].hd = cbeam[ncbeams+i].hd; |
178 |
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pa[i].bi = cbeam[ncbeams+i].bi; |
179 |
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pa[i].nr = npixels(v, hr, vr, hdlist[pa[i].hd], pa[i].bi) + 1; |
180 |
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} |
181 |
+ |
n = xcbeams; /* now sort list for deletions */ |
182 |
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cbeamsort(0); |
183 |
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pa = (PACKHEAD *)realloc((char *)pa, (n+xcbeams)*sizeof(PACKHEAD)); |
184 |
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if (n+xcbeams && pa == NULL) |
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goto memerr; |
186 |
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for (i = xcbeams; i--; ) { |
187 |
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pa[n+i].hd = cbeam[ncbeams+i].hd; |
188 |
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pa[n+i].bi = cbeam[ncbeams+i].bi; |
189 |
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pa[n+i].nr = 0; |
190 |
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} |
191 |
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n += xcbeams; |
192 |
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xcbeams = 0; /* delete orphans */ |
193 |
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serv_request(DR_ADJSET, n*sizeof(PACKHEAD), (char *)pa); |
194 |
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free((char *)pa); |
195 |
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return; |
196 |
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memerr: |
197 |
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error(SYSTEM, "out of memory in cbeamadj"); |
198 |
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} |
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|
200 |
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|
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cbeamop(op, bl, n, v, hr, vr) /* update beams on server list */ |
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int op; |
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register struct beamcomp *bl; |
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n++; |
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} |
301 |
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} |
302 |
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/* check for really stupid move */ |
303 |
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if (bestd > MAXDIST) { |
304 |
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error(COMMAND, "move past outer limits"); |
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return(0); |
306 |
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} |
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/* warn of dangerous moves */ |
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if (n < lastn && bestd >= lastd) |
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error(WARNING, "moving outside holodeck section"); |
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GCOORD *gcp; |
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register struct cellact *cap; |
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{ |
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register HOLO *hp = hdlist[voxel[cap->vi].hd]; |
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FVECT org, dir[4]; |
357 |
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FVECT gp, cv[4], vc; |
357 |
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FVECT vgp, cgp, vc; |
358 |
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FVECT v1, v2; |
359 |
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struct beamact bo; |
360 |
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int axmax, j; |
361 |
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double d, avmax; |
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register int i; |
363 |
< |
/* compute cell vertices */ |
364 |
< |
hdcell(cv, hdlist[voxel[cap->vi].hd], gcp); |
365 |
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/* compute cell and voxel centers */ |
366 |
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for (i = 0; i < 3; i++) { |
367 |
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org[i] = 0.5*(cv[0][i] + cv[2][i]); |
368 |
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gp[i] = voxel[cap->vi].i[i] + 0.5; |
369 |
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} |
370 |
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hdworld(vc, hdlist[voxel[cap->vi].hd], gp); |
371 |
< |
/* compute voxel pyramid using vector trick */ |
372 |
< |
for (i = 0; i < 3; i++) { |
373 |
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dir[0][i] = vc[i] - cv[0][i]; /* to 3 */ |
374 |
< |
dir[2][i] = vc[i] - cv[3][i]; /* to 0 */ |
375 |
< |
if (gcp->w & 1) { /* watch vertex order! */ |
376 |
< |
dir[1][i] = vc[i] - cv[2][i]; /* to 1 */ |
377 |
< |
dir[3][i] = vc[i] - cv[1][i]; /* to 2 */ |
378 |
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} else { |
379 |
< |
dir[1][i] = vc[i] - cv[1][i]; /* to 2 */ |
380 |
< |
dir[3][i] = vc[i] - cv[2][i]; /* to 1 */ |
363 |
> |
/* compute cell center */ |
364 |
> |
cgp[gcp->w>>1] = gcp->w&1 ? hp->grid[gcp->w>>1] : 0 ; |
365 |
> |
cgp[((gcp->w>>1)+1)%3] = gcp->i[0] + .5; |
366 |
> |
cgp[((gcp->w>>1)+2)%3] = gcp->i[1] + .5; |
367 |
> |
hdworld(org, hp, cgp); |
368 |
> |
/* compute direction to voxel center */ |
369 |
> |
for (i = 3; i--; ) |
370 |
> |
vgp[i] = voxel[cap->vi].i[i] + 0.5; |
371 |
> |
hdworld(vc, hp, vgp); |
372 |
> |
for (i = 3; i--; ) |
373 |
> |
vc[i] -= org[i]; |
374 |
> |
/* compute maximum area axis */ |
375 |
> |
axmax = -1; avmax = 0; |
376 |
> |
for (i = 3; i--; ) { |
377 |
> |
d = vgp[i] - cgp[i]; |
378 |
> |
if (d < 0) d = -d; |
379 |
> |
if (d > avmax) { |
380 |
> |
avmax = d; |
381 |
> |
axmax = i; |
382 |
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} |
383 |
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} |
384 |
+ |
#ifdef DEBUG |
385 |
+ |
if (axmax < 0) |
386 |
+ |
error(CONSISTENCY, "botched axis computation in docell"); |
387 |
+ |
#endif |
388 |
+ |
/* compute offset vectors */ |
389 |
+ |
d = 0.5/hp->grid[j=(axmax+1)%3]; |
390 |
+ |
for (i = 3; i--; ) |
391 |
+ |
v1[i] = hp->xv[j][i] * d; |
392 |
+ |
d = 0.5/hp->grid[j=(axmax+2)%3]; |
393 |
+ |
if (DOT(hp->wn[axmax], vc) < 0) |
394 |
+ |
d = -d; /* reverse vertex ordering */ |
395 |
+ |
for (i = 3; i--; ) |
396 |
+ |
v2[i] = hp->xv[j][i] * d; |
397 |
+ |
/* compute voxel pyramid */ |
398 |
+ |
for (i = 3; i--; ) { |
399 |
+ |
dir[0][i] = vc[i] - v1[i] - v2[i]; |
400 |
+ |
dir[1][i] = vc[i] + v1[i] - v2[i]; |
401 |
+ |
dir[2][i] = vc[i] + v1[i] + v2[i]; |
402 |
+ |
dir[3][i] = vc[i] - v1[i] + v2[i]; |
403 |
+ |
} |
404 |
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/* visit beams for opposite cells */ |
405 |
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copystruct(&bo.ca, cap); |
406 |
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copystruct(&bo.gc, gcp); |
407 |
< |
return(visit_cells(org, dir, hdlist[voxel[cap->vi].hd], dobeam, &bo)); |
407 |
> |
return(visit_cells(org, dir, hp, dobeam, &bo)); |
408 |
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} |
409 |
|
|
410 |
|
|
433 |
|
struct cellact oca, nca; |
434 |
|
int ocnt, ncnt; |
435 |
|
int c; |
436 |
+ |
GCOORD *ogcl, *ngcl; |
437 |
|
register GCOORD *ogcp, *ngcp; |
438 |
|
/* get old and new cell lists */ |
439 |
< |
ogcp = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
440 |
< |
ngcp = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
439 |
> |
ogcp = ogcl = getviewcells(&ocnt, hdlist[voxel[voxi].hd], vold); |
440 |
> |
ngcp = ngcl = getviewcells(&ncnt, hdlist[voxel[voxi].hd], vnew); |
441 |
|
/* set up actions */ |
442 |
|
oca.vi = nca.vi = voxi; |
443 |
|
oca.rev = nca.rev = 0; |
446 |
|
ocnt = -ocnt; |
447 |
|
if ((nca.rev = ncnt < 0)) |
448 |
|
ncnt = -ncnt; |
449 |
< |
/* add and delete cells in order */ |
450 |
< |
while (ocnt > 0 & ncnt > 0) |
451 |
< |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
452 |
< |
netchange += docell(ngcp++, &nca); |
453 |
< |
ncnt--; |
454 |
< |
} else if (c < 0) { /* obsolete cell */ |
455 |
< |
netchange -= docell(ogcp++, &oca); |
456 |
< |
ocnt--; |
457 |
< |
} else { /* same cell? */ |
458 |
< |
if (oca.rev != nca.rev) /* not */ |
459 |
< |
netchange += docell(ngcp, &nca) - |
460 |
< |
docell(ogcp, &oca); |
388 |
< |
ogcp++; ocnt--; |
389 |
< |
ngcp++; ncnt--; |
390 |
< |
} |
449 |
> |
if (nca.rev == oca.rev) /* add and delete cells in order */ |
450 |
> |
while (ocnt > 0 & ncnt > 0) |
451 |
> |
if ((c = cellcmp(ogcp, ngcp)) > 0) { /* new cell */ |
452 |
> |
netchange += docell(ngcp++, &nca); |
453 |
> |
ncnt--; |
454 |
> |
} else if (c < 0) { /* old cell */ |
455 |
> |
netchange -= docell(ogcp++, &oca); |
456 |
> |
ocnt--; |
457 |
> |
} else { /* same cell */ |
458 |
> |
ogcp++; ocnt--; |
459 |
> |
ngcp++; ncnt--; |
460 |
> |
} |
461 |
|
/* take care of list tails */ |
462 |
|
for ( ; ncnt > 0; ncnt--) |
463 |
|
netchange += docell(ngcp++, &nca); |
464 |
|
for ( ; ocnt > 0; ocnt--) |
465 |
|
netchange -= docell(ogcp++, &oca); |
466 |
|
/* clean up */ |
467 |
< |
if (ogcp != NULL) free((char *)ogcp); |
468 |
< |
if (ngcp != NULL) free((char *)ngcp); |
467 |
> |
if (ogcl != NULL) free((char *)ogcl); |
468 |
> |
if (ngcl != NULL) free((char *)ngcl); |
469 |
|
return(netchange); |
470 |
|
} |
471 |
|
|
476 |
|
} |
477 |
|
|
478 |
|
|
479 |
< |
beam_view(vo, vn) /* change beam view */ |
480 |
< |
VIEW *vo, *vn; |
479 |
> |
beam_view(vn) /* change beam view (if advisable) */ |
480 |
> |
VIEW *vn; |
481 |
|
{ |
482 |
|
struct cellact ca; |
483 |
|
VOXL vlnew[8]; |
487 |
|
set_voxels(vlnew, 0); |
488 |
|
cbeamop(DR_DELSET, cbeam, ncbeams, NULL, 0, 0); |
489 |
|
ncbeams = 0; |
490 |
< |
return; |
490 |
> |
copystruct(&dvw, vn); |
491 |
> |
return(1); |
492 |
|
} |
493 |
|
/* find our new voxels */ |
494 |
|
n = get_voxels(vlnew, vn->vp); |
495 |
+ |
if (dvw.type && !n) { |
496 |
+ |
copystruct(vn, &dvw); /* cancel move */ |
497 |
+ |
return(0); |
498 |
+ |
} |
499 |
|
/* set the new voxels */ |
500 |
|
comn = set_voxels(vlnew, n); |
501 |
< |
if (!vo->type) |
501 |
> |
if (!dvw.type) |
502 |
|
comn = 0; |
503 |
|
ca.add = 1; /* update our beam list */ |
504 |
|
for (ca.vi = n; ca.vi--; ) |
505 |
|
if (comn & 1<<ca.vi) /* change which cells we see */ |
506 |
< |
mvview(ca.vi, vo, vn); |
506 |
> |
mvview(ca.vi, &dvw, vn); |
507 |
|
else /* else add all new cells */ |
508 |
|
doview(&ca, vn); |
509 |
+ |
#if 1 |
510 |
+ |
cbeamadj(vn, odev.hres, odev.vres); |
511 |
+ |
#else |
512 |
|
/* inform server of new beams */ |
513 |
|
cbeamop(DR_ADDSET, cbeam+ncbeams, xcbeams, vn, odev.hres, odev.vres); |
514 |
|
/* sort list to put orphans at end */ |
516 |
|
/* tell server to delete orphans */ |
517 |
|
cbeamop(DR_DELSET, cbeam+ncbeams, xcbeams, NULL, 0, 0); |
518 |
|
xcbeams = 0; /* truncate our list */ |
519 |
+ |
#endif |
520 |
+ |
copystruct(&dvw, vn); /* record new view */ |
521 |
+ |
return(1); |
522 |
|
} |