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