1 /* -------------------------------------------------------------------------------
3 Copyright (C) 1999-2007 id Software, Inc. and contributors.
4 For a list of contributors, see the accompanying CONTRIBUTORS file.
6 This file is part of GtkRadiant.
8 GtkRadiant is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 GtkRadiant is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GtkRadiant; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 ----------------------------------------------------------------------------------
24 This code has been altered significantly from its original form, to support
25 several games based on the Quake III Arena engine, in the form of "Q3Map2."
27 ------------------------------------------------------------------------------- */
42 void RemovePortalFromNode (portal_t *portal, node_t *l);
44 node_t *NodeForPoint (node_t *node, vec3_t origin)
49 while (node->planenum != PLANENUM_LEAF)
51 plane = &mapplanes[node->planenum];
52 d = DotProduct (origin, plane->normal) - plane->dist;
54 node = node->children[0];
56 node = node->children[1];
69 void FreeTreePortals_r (node_t *node)
75 if (node->planenum != PLANENUM_LEAF)
77 FreeTreePortals_r (node->children[0]);
78 FreeTreePortals_r (node->children[1]);
82 for (p=node->portals ; p ; p=nextp)
84 s = (p->nodes[1] == node);
87 RemovePortalFromNode (p, p->nodes[!s]);
98 void FreeTree_r (node_t *node)
101 if (node->planenum != PLANENUM_LEAF)
103 FreeTree_r (node->children[0]);
104 FreeTree_r (node->children[1]);
108 FreeBrushList (node->brushlist);
112 FreeBrush (node->volume);
123 void FreeTree (tree_t *tree)
125 FreeTreePortals_r (tree->headnode);
126 FreeTree_r (tree->headnode);
130 //===============================================================
132 void PrintTree_r (node_t *node, int depth)
138 for (i=0 ; i<depth ; i++)
140 if (node->planenum == PLANENUM_LEAF)
142 if (!node->brushlist)
143 Sys_Printf ("NULL\n");
146 for (bb=node->brushlist ; bb ; bb=bb->next)
147 Sys_Printf ("%d ", bb->original->brushNum);
153 plane = &mapplanes[node->planenum];
154 Sys_Printf ("#%d (%5.2f %5.2f %5.2f):%5.2f\n", node->planenum,
155 plane->normal[0], plane->normal[1], plane->normal[2],
157 PrintTree_r (node->children[0], depth+1);
158 PrintTree_r (node->children[1], depth+1);