From 952c5c128f9efaea89d41d882c4ea3ade7df4591 Mon Sep 17 00:00:00 2001 From: zakk Date: Fri, 26 Aug 2005 04:48:05 +0000 Subject: Itsa me, quake3io! git-svn-id: svn://svn.icculus.org/quake3/trunk@2 edf5b092-35ff-0310-97b2-ce42778d08ea --- code/bspc/prtfile.c | 287 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 287 insertions(+) create mode 100755 code/bspc/prtfile.c (limited to 'code/bspc/prtfile.c') diff --git a/code/bspc/prtfile.c b/code/bspc/prtfile.c new file mode 100755 index 0000000..69834aa --- /dev/null +++ b/code/bspc/prtfile.c @@ -0,0 +1,287 @@ +/* +=========================================================================== +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; + +void WriteFloat2 (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 && !node->detail_seperator) + { + WritePortalFile_r (node->children[0]); + WritePortalFile_r (node->children[1]); + return; + } + + if (node->contents & CONTENTS_SOLID) + 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_VisFlood (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); + for (i=0 ; inumpoints ; i++) + { + fprintf (pf,"("); + WriteFloat2 (pf, w->p[i][0]); + WriteFloat2 (pf, w->p[i][1]); + WriteFloat2 (pf, w->p[i][2]); + fprintf (pf,") "); + } + fprintf (pf,"\n"); + } + } + +} + +/* +================ +FillLeafNumbers_r + +All of the leafs under node will have the same cluster +================ +*/ +void FillLeafNumbers_r (node_t *node, int num) +{ + if (node->planenum == PLANENUM_LEAF) + { + if (node->contents & CONTENTS_SOLID) + node->cluster = -1; + else + node->cluster = num; + return; + } + node->cluster = num; + FillLeafNumbers_r (node->children[0], num); + FillLeafNumbers_r (node->children[1], num); +} + +/* +================ +NumberLeafs_r +================ +*/ +void NumberLeafs_r (node_t *node) +{ + portal_t *p; + + if (node->planenum != PLANENUM_LEAF && !node->detail_seperator) + { // decision node + node->cluster = -99; + NumberLeafs_r (node->children[0]); + NumberLeafs_r (node->children[1]); + return; + } + + // either a leaf or a detail cluster + + if ( node->contents & CONTENTS_SOLID ) + { // solid block, viewpoint never inside + node->cluster = -1; + return; + } + + FillLeafNumbers_r (node, 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_VisFlood (p)) + num_visportals++; + p = p->next[0]; + } + else + p = p->next[1]; + } + +} + + +/* +================ +CreateVisPortals_r +================ +*/ +void CreateVisPortals_r (node_t *node) +{ + // stop as soon as we get to a detail_seperator, which + // means that everything below is in a single cluster + if (node->planenum == PLANENUM_LEAF || node->detail_seperator ) + return; + + MakeNodePortal (node); + SplitNodePortals (node); + + CreateVisPortals_r (node->children[0]); + CreateVisPortals_r (node->children[1]); +} + +/* +================ +FinishVisPortals_r +================ +*/ +void FinishVisPortals2_r (node_t *node) +{ + if (node->planenum == PLANENUM_LEAF) + return; + + MakeNodePortal (node); + SplitNodePortals (node); + + FinishVisPortals2_r (node->children[0]); + FinishVisPortals2_r (node->children[1]); +} + +void FinishVisPortals_r (node_t *node) +{ + if (node->planenum == PLANENUM_LEAF) + return; + + if (node->detail_seperator) + { + FinishVisPortals2_r (node); + return; + } + + FinishVisPortals_r (node->children[0]); + FinishVisPortals_r (node->children[1]); +} + + +int clusterleaf; +void SaveClusters_r (node_t *node) +{ + if (node->planenum == PLANENUM_LEAF) + { + dleafs[clusterleaf++].cluster = node->cluster; + return; + } + SaveClusters_r (node->children[0]); + SaveClusters_r (node->children[1]); +} + +/* +================ +WritePortalFile +================ +*/ +void WritePortalFile (tree_t *tree) +{ + char filename[1024]; + node_t *headnode; + + qprintf ("--- WritePortalFile ---\n"); + + headnode = tree->headnode; + num_visclusters = 0; + num_visportals = 0; + + Tree_FreePortals_r (headnode); + + MakeHeadnodePortals (tree); + + CreateVisPortals_r (headnode); + +// set the cluster field in every leaf and count the total number of portals + + NumberLeafs_r (headnode); + +// 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); + + qprintf ("%5i visclusters\n", num_visclusters); + qprintf ("%5i visportals\n", num_visportals); + + WritePortalFile_r (headnode); + + fclose (pf); + + // we need to store the clusters out now because ordering + // issues made us do this after writebsp... + clusterleaf = 1; + SaveClusters_r (headnode); +} + -- cgit v1.2.3