Recovered from microbel

common/lib/srvcli/bsdtree.C

@@ -0,0 +1,100 @@
+/*
+ * PVVMUD a 3D MUD
+ * Copyright (C) 1998-1999  Programvareverkstedet (pvv@pvv.org)
+ *
+ * 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
+ *
+ */
+#include "pvvmud.H"
+#include <iostream.h>
+#include <stdio.h>
+#include "bsdtree.H"
+
+CBSDTreeNode::CBSDTreeNode(double a, double b, double c, double d){
+  this->a = a;
+  this->b = b;
+  this->c = c;
+  this->d = d;
+  inNode = NULL;
+  outNode = NULL;
+}
+
+int CBSDTreeNode::inside(double x, double y, double z){
+  if ( (a*x + b*y + c*z + d ) >= 0.0){
+    if (inNode != NULL) return inNode->inside(x,y,z);
+      else return TRUE;
+  } else {
+    if (outNode != NULL) return outNode->inside(x,y,z);
+      else return FALSE;
+  }
+}
+
+CBSDTree::CBSDTree(){
+  BSDTree = NULL;
+}
+
+int CBSDTree::load(char * fileName){
+  FILE * bsdFile;
+
+  if ((bsdFile = fopen(fileName,"r")) == NULL){
+    cdebug << "Failed to open bsdFile " << fileName << "\n";
+    return FALSE;
+  }
+
+  BSDTree = loadNode(bsdFile);
+
+  fclose(bsdFile);
+  return TRUE;
+}
+
+CBSDTreeNode * CBSDTree::loadNode(FILE * bsdFile){
+
+  CBSDTreeNode * node;
+  char nodeType[256];
+  double a,b,c,d;
+
+  if (fscanf(bsdFile,"%s",nodeType) == 1){
+
+    if (strcmp(nodeType,"NODE") == 0){
+      if (fscanf(bsdFile,"%lf %lf %lf %lf",&a,&b,&c,&d) == 4){
+        node = new CBSDTreeNode(a,b,c,d);        
+      } else {
+        cdebug << "File format error in BSDTree file:"
+             << " Error in parameters to NODE\n";
+        return NULL;
+      }
+    } else if (strcmp(nodeType,"IN") == 0){
+      return NULL;
+    } else if (strcmp(nodeType,"OUT") == 0){
+      return NULL;
+    } else {
+      cdebug << "File format error in BSDTree file: Unknown identifyer\n";
+      return FALSE;
+    }
+    node->setInChild( loadNode(bsdFile) );
+    node->setOutChild( loadNode(bsdFile) );
+    return node;
+  }
+  return NULL;
+}
+
+int CBSDTree::inside(double x, double y, double z){
+  if (BSDTree != NULL) return BSDTree->inside(x,y,z);
+    else return FALSE;
+}
+
+int CBSDTree::inside(const CPosition & position){
+  return inside(position.getX(),position.getY(),position.getZ());
+}