diff options
Diffstat (limited to 'q3map/prtfile.c')
| -rwxr-xr-x | q3map/prtfile.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/q3map/prtfile.c b/q3map/prtfile.c new file mode 100755 index 0000000..902ae05 --- /dev/null +++ b/q3map/prtfile.c @@ -0,0 +1,272 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 2 of the License, +or (at your option) any later version. + +Quake III Arena source code is distributed in the hope that it will be +useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Foobar; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +
+#include "qbsp.h"
+
+/*
+==============================================================================
+
+PORTAL FILE GENERATION
+
+Save out name.prt for qvis to read
+==============================================================================
+*/
+
+
+#define PORTALFILE "PRT1"
+
+FILE *pf;
+int num_visclusters; // clusters the player can be in
+int num_visportals;
+int num_solidfaces;
+
+void WriteFloat (FILE *f, vec_t v)
+{
+ if ( fabs(v - Q_rint(v)) < 0.001 )
+ fprintf (f,"%i ",(int)Q_rint(v));
+ else
+ fprintf (f,"%f ",v);
+}
+
+/*
+=================
+WritePortalFile_r
+=================
+*/
+void WritePortalFile_r (node_t *node)
+{
+ int i, s;
+ portal_t *p;
+ winding_t *w;
+ vec3_t normal;
+ vec_t dist;
+
+ // decision node
+ if (node->planenum != PLANENUM_LEAF) {
+ WritePortalFile_r (node->children[0]);
+ WritePortalFile_r (node->children[1]);
+ return;
+ }
+
+ if (node->opaque) {
+ return;
+ }
+
+ for (p = node->portals ; p ; p=p->next[s])
+ {
+ w = p->winding;
+ s = (p->nodes[1] == node);
+ if (w && p->nodes[0] == node)
+ {
+ if (!Portal_Passable(p))
+ continue;
+ // write out to the file
+
+ // sometimes planes get turned around when they are very near
+ // the changeover point between different axis. interpret the
+ // plane the same way vis will, and flip the side orders if needed
+ // FIXME: is this still relevent?
+ WindingPlane (w, normal, &dist);
+ if ( DotProduct (p->plane.normal, normal) < 0.99 )
+ { // backwards...
+ fprintf (pf,"%i %i %i ",w->numpoints, p->nodes[1]->cluster, p->nodes[0]->cluster);
+ }
+ else
+ fprintf (pf,"%i %i %i ",w->numpoints, p->nodes[0]->cluster, p->nodes[1]->cluster);
+ if (p->hint)
+ fprintf (pf, "1 ");
+ else
+ fprintf (pf, "0 ");
+ for (i=0 ; i<w->numpoints ; i++)
+ {
+ fprintf (pf,"(");
+ WriteFloat (pf, w->p[i][0]);
+ WriteFloat (pf, w->p[i][1]);
+ WriteFloat (pf, w->p[i][2]);
+ fprintf (pf,") ");
+ }
+ fprintf (pf,"\n");
+ }
+ }
+
+}
+
+/*
+=================
+WriteFaceFile_r
+=================
+*/
+void WriteFaceFile_r (node_t *node)
+{
+ int i, s;
+ portal_t *p;
+ winding_t *w;
+
+ // decision node
+ if (node->planenum != PLANENUM_LEAF) {
+ WriteFaceFile_r (node->children[0]);
+ WriteFaceFile_r (node->children[1]);
+ return;
+ }
+
+ if (node->opaque) {
+ return;
+ }
+
+ for (p = node->portals ; p ; p=p->next[s])
+ {
+ w = p->winding;
+ s = (p->nodes[1] == node);
+ if (w)
+ {
+ if (Portal_Passable(p))
+ continue;
+ // write out to the file
+
+ if (p->nodes[0] == node)
+ {
+ fprintf (pf,"%i %i ",w->numpoints, p->nodes[0]->cluster);
+ for (i=0 ; i<w->numpoints ; i++)
+ {
+ fprintf (pf,"(");
+ WriteFloat (pf, w->p[i][0]);
+ WriteFloat (pf, w->p[i][1]);
+ WriteFloat (pf, w->p[i][2]);
+ fprintf (pf,") ");
+ }
+ fprintf (pf,"\n");
+ }
+ else
+ {
+ fprintf (pf,"%i %i ",w->numpoints, p->nodes[1]->cluster);
+ for (i = w->numpoints-1; i >= 0; i--)
+ {
+ fprintf (pf,"(");
+ WriteFloat (pf, w->p[i][0]);
+ WriteFloat (pf, w->p[i][1]);
+ WriteFloat (pf, w->p[i][2]);
+ fprintf (pf,") ");
+ }
+ fprintf (pf,"\n");
+ }
+ }
+ }
+}
+
+/*
+================
+NumberLeafs_r
+================
+*/
+void NumberLeafs_r (node_t *node)
+{
+ portal_t *p;
+
+ if ( node->planenum != PLANENUM_LEAF ) {
+ // decision node
+ node->cluster = -99;
+ NumberLeafs_r (node->children[0]);
+ NumberLeafs_r (node->children[1]);
+ return;
+ }
+
+ node->area = -1;
+
+ if ( node->opaque ) {
+ // solid block, viewpoint never inside
+ node->cluster = -1;
+ return;
+ }
+
+ node->cluster = num_visclusters;
+ num_visclusters++;
+
+ // count the portals
+ for (p = node->portals ; p ; )
+ {
+ if (p->nodes[0] == node) // only write out from first leaf
+ {
+ if (Portal_Passable(p))
+ num_visportals++;
+ else
+ num_solidfaces++;
+ p = p->next[0];
+ }
+ else
+ {
+ if (!Portal_Passable(p))
+ num_solidfaces++;
+ p = p->next[1];
+ }
+ }
+}
+
+
+/*
+================
+NumberClusters
+================
+*/
+void NumberClusters(tree_t *tree) {
+ num_visclusters = 0;
+ num_visportals = 0;
+ num_solidfaces = 0;
+
+ qprintf ("--- NumberClusters ---\n");
+
+ // set the cluster field in every leaf and count the total number of portals
+ NumberLeafs_r (tree->headnode);
+
+ qprintf ("%5i visclusters\n", num_visclusters);
+ qprintf ("%5i visportals\n", num_visportals);
+ qprintf ("%5i solidfaces\n", num_solidfaces);
+}
+
+/*
+================
+WritePortalFile
+================
+*/
+void WritePortalFile (tree_t *tree)
+{
+ char filename[1024];
+
+ qprintf ("--- WritePortalFile ---\n");
+
+ // write the file
+ sprintf (filename, "%s.prt", source);
+ _printf ("writing %s\n", filename);
+ pf = fopen (filename, "w");
+ if (!pf)
+ Error ("Error opening %s", filename);
+
+ fprintf (pf, "%s\n", PORTALFILE);
+ fprintf (pf, "%i\n", num_visclusters);
+ fprintf (pf, "%i\n", num_visportals);
+ fprintf (pf, "%i\n", num_solidfaces);
+
+ WritePortalFile_r(tree->headnode);
+ WriteFaceFile_r(tree->headnode);
+
+ fclose (pf);
+}
+
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