2 Copyright (C) 1999-2007 id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 ----------------------------------------------------------------------------------
23 This code has been altered significantly from its original form, to support
24 several games based on the Quake III Arena engine, in the form of "Q3Map2."
26 ------------------------------------------------------------------------------- */
41 void RemovePortalFromNode (portal_t *portal, node_t *l);
43 node_t *NodeForPoint (node_t *node, vec3_t origin)
48 while (node->planenum != PLANENUM_LEAF)
50 plane = &mapplanes[node->planenum];
51 d = DotProduct (origin, plane->normal) - plane->dist;
53 node = node->children[0];
55 node = node->children[1];
68 void FreeTreePortals_r (node_t *node)
74 if (node->planenum != PLANENUM_LEAF)
76 FreeTreePortals_r (node->children[0]);
77 FreeTreePortals_r (node->children[1]);
81 for (p=node->portals ; p ; p=nextp)
83 s = (p->nodes[1] == node);
86 RemovePortalFromNode (p, p->nodes[!s]);
97 void FreeTree_r (node_t *node)
100 if (node->planenum != PLANENUM_LEAF)
102 FreeTree_r (node->children[0]);
103 FreeTree_r (node->children[1]);
107 FreeBrushList (node->brushlist);
111 FreeBrush (node->volume);
122 void FreeTree (tree_t *tree)
124 FreeTreePortals_r (tree->headnode);
125 FreeTree_r (tree->headnode);
129 //===============================================================
131 void PrintTree_r (node_t *node, int depth)
137 for (i=0 ; i<depth ; i++)
139 if (node->planenum == PLANENUM_LEAF)
141 if (!node->brushlist)
142 Sys_Printf ("NULL\n");
145 for (bb=node->brushlist ; bb ; bb=bb->next)
146 Sys_Printf ("%d ", bb->original->brushNum);
152 plane = &mapplanes[node->planenum];
153 Sys_Printf ("#%d (%5.2f %5.2f %5.2f):%5.2f\n", node->planenum,
154 plane->normal[0], plane->normal[1], plane->normal[2],
156 PrintTree_r (node->children[0], depth+1);
157 PrintTree_r (node->children[1], depth+1);