101 lines
2.6 KiB
C
101 lines
2.6 KiB
C
/*
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* PVVMUD a 3D MUD
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* Copyright (C) 1998-1999 Programvareverkstedet (pvv@pvv.org)
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*
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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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*
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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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*
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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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*
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*/
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#include "pvvmud.H"
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#include <iostream.h>
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#include <stdio.h>
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#include "bsdtree.H"
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CBSDTreeNode::CBSDTreeNode(double a, double b, double c, double d){
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this->a = a;
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this->b = b;
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this->c = c;
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this->d = d;
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inNode = NULL;
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outNode = NULL;
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}
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int CBSDTreeNode::inside(double x, double y, double z){
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if ( (a*x + b*y + c*z + d ) >= 0.0){
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if (inNode != NULL) return inNode->inside(x,y,z);
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else return TRUE;
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} else {
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if (outNode != NULL) return outNode->inside(x,y,z);
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else return FALSE;
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}
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}
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CBSDTree::CBSDTree(){
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BSDTree = NULL;
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}
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int CBSDTree::load(char * fileName){
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FILE * bsdFile;
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if ((bsdFile = fopen(fileName,"r")) == NULL){
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cdebug << "Failed to open bsdFile " << fileName << "\n";
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return FALSE;
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}
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BSDTree = loadNode(bsdFile);
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fclose(bsdFile);
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return TRUE;
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}
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CBSDTreeNode * CBSDTree::loadNode(FILE * bsdFile){
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CBSDTreeNode * node;
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char nodeType[256];
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double a,b,c,d;
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if (fscanf(bsdFile,"%s",nodeType) == 1){
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if (strcmp(nodeType,"NODE") == 0){
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if (fscanf(bsdFile,"%lf %lf %lf %lf",&a,&b,&c,&d) == 4){
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node = new CBSDTreeNode(a,b,c,d);
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} else {
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cdebug << "File format error in BSDTree file:"
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<< " Error in parameters to NODE\n";
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return NULL;
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}
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} else if (strcmp(nodeType,"IN") == 0){
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return NULL;
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} else if (strcmp(nodeType,"OUT") == 0){
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return NULL;
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} else {
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cdebug << "File format error in BSDTree file: Unknown identifyer\n";
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return FALSE;
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}
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node->setInChild( loadNode(bsdFile) );
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node->setOutChild( loadNode(bsdFile) );
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return node;
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}
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return NULL;
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}
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int CBSDTree::inside(double x, double y, double z){
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if (BSDTree != NULL) return BSDTree->inside(x,y,z);
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else return FALSE;
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}
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int CBSDTree::inside(const CPosition & position){
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return inside(position.getX(),position.getY(),position.getZ());
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}
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