mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 21:02:50 +00:00
95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
/*
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
This program 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.
|
|
|
|
This program 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 this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
See file, 'COPYING', for details.
|
|
|
|
$Id$
|
|
*/
|
|
|
|
#ifndef qfbsp_portals_h
|
|
#define qfbsp_portals_h
|
|
|
|
/** \defgroup qfbsp_portals Portal Functions
|
|
\ingroup qfbsp
|
|
|
|
A portal is the polygonal interface between two leaf nodes, regardless
|
|
of the contents of the two leaf nodes.
|
|
|
|
Decision nodes will not have portals on them, though as part of the
|
|
portal building process, they will temporarily have portals.
|
|
*/
|
|
//@{
|
|
|
|
struct node_s;
|
|
|
|
typedef struct portal_s {
|
|
int planenum; ///< plane holding this portal
|
|
struct node_s *nodes[2]; ///< [0] = front side of plane
|
|
struct portal_s *next[2]; ///< [0] = front side of plane
|
|
struct winding_s *winding; ///< this portal's polygon
|
|
} portal_t;
|
|
|
|
extern struct node_s outside_node; // portals outside the world face this
|
|
|
|
/** Allocate a new portal.
|
|
|
|
Increases \c c_activeportals by one.
|
|
|
|
\return Pointer to the new portal.
|
|
*/
|
|
portal_t *AllocPortal (void);
|
|
|
|
/** Free a portal.
|
|
|
|
Only the first portal will be freed. If the portal is linked to other
|
|
portals, those portals will have to be freed seperately.
|
|
|
|
Reduces \c c_activeportals by one.
|
|
|
|
\param p The portal to free.
|
|
*/
|
|
void FreePortal (portal_t *p);
|
|
|
|
/** Builds the exact polyhedrons for the nodes and leafs.
|
|
|
|
\param headnode The root of the world bsp.
|
|
*/
|
|
void PortalizeWorld (struct node_s *headnode);
|
|
|
|
/** Builds the exact polyhedrons for the nodes and leafs.
|
|
|
|
Like PortalizeWorld, but stop at detail nodes - Alexander Malmberg.
|
|
|
|
\param headnode The root of the world bsp.
|
|
*/
|
|
void PortalizeWorldDetail (struct node_s *headnode); // stop at detail nodes
|
|
|
|
/** Free all portals from a node and its decendents.
|
|
|
|
\param node The node from which to remove and free portals.
|
|
*/
|
|
void FreeAllPortals (struct node_s *node);
|
|
|
|
/** Write the map's portals to the portal file.
|
|
|
|
\param headnode The root of the map's bsp.
|
|
*/
|
|
void WritePortalfile (struct node_s *headnode);
|
|
|
|
//@}
|
|
|
|
#endif//qfbsp_portals_h
|