84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1997 Greg Lewis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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See file, 'COPYING', for details.
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*/
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#pragma once
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#include <common/bspfile.hh>
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#include <qbsp/brush.hh>
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#include <qbsp/qbsp.hh>
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#include <atomic>
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#include <memory>
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struct side_t;
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struct tree_t;
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struct portal_t
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{
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qbsp_plane_t plane;
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// nullptr = portal to the outside of the world (one of six sides of a box)
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node_t *onnode;
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// .front/.back side of planenum
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twosided<node_t *> nodes;
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// front = next portal in nodes[0]'s list of portals
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twosided<portal_t *> next;
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winding_t winding;
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// front = the brush side visible on nodes.front - it could come from a brush in nodes.back
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// nullptr = non-visible
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twosided<side_t *> sides;
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// false if ->side hasn't been checked
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bool sidefound;
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};
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// helper used for building the portals in paralllel.
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struct buildportal_t
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{
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qbsp_plane_t plane;
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// nullptr = portal to the outside of the world (one of six sides of a box)
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node_t *onnode = nullptr;
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// .front/.back side of planenum
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twosided<node_t *> nodes = {nullptr, nullptr};
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winding_t winding;
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};
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struct portalstats_t : logging::stat_tracker_t
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{
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stat &c_tinyportals = register_stat("tiny portals");
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};
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contentflags_t ClusterContents(const node_t *node);
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bool Portal_VisFlood(const portal_t *p);
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bool Portal_EntityFlood(const portal_t *p, int32_t s);
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enum class portaltype_t
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{
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TREE,
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VIS
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};
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std::list<buildportal_t> MakeTreePortals_r(node_t *node, portaltype_t type, std::list<buildportal_t> boundary_portals,
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portalstats_t &stats, logging::percent_clock &clock);
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void MakeTreePortals(tree_t &tree);
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std::list<buildportal_t> MakeHeadnodePortals(tree_t &tree);
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void MakePortalsFromBuildportals(tree_t &tree, std::list<buildportal_t> &buildportals);
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void EmitAreaPortals(node_t *headnode);
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void MarkVisibleSides(tree_t &tree, bspbrush_t::container &brushes);
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