Changeset 3321 in orxonox.OLD for orxonox/branches/parenting/src/curve.cc

Timestamp:

Jan 3, 2005, 12:25:49 PM (19 years ago)

Author:

bensch

Message:

orxonox/branches/parenting: derivation-curve implemented.

File:

• orxonox/branches/parenting/src/curve.cc (modified) (5 diffs)

orxonox/branches/parenting/src/curve.cc

@@ -50 +50 @@
 BezierCurve::BezierCurve (void)
 {
-  nodeCount = 0;
-  firstNode = new PathNode;
-  currentNode = firstNode;
+  this->derivation = 0;
+  dirCurve = new BezierCurve(1);
+  this->init();
+}
 
-  firstNode->position = Vector (.0, .0, .0);
-  firstNode->number = 0;
-  firstNode->next = 0; // not sure if this really points to NULL!!
-
-  return;
+/**
+   \brief Creates a new BezierCurve-Derivation-Curve
+*/
+BezierCurve::BezierCurve (int derivation)
+{
+  this->derivation = derivation;
+  dirCurve=NULL;
+  this->init();
 }
 
@@ -76 +80 @@
       delete tmpNode;
     }
+  if (dirCurve)
+    delete dirCurve;
+}
+
+/**
+   \brief Initializes a BezierCurve
+*/
+void BezierCurve::init(void)
+{
+  nodeCount = 0;
+  firstNode = new PathNode;
+  currentNode = firstNode;
+
+  firstNode->position = Vector (.0, .0, .0);
+  firstNode->number = 0;
+  firstNode->next = 0; // not sure if this really points to NULL!!
+
+  return;
 }
 
@@ -85 +107 @@
   PathNode* tmpNode = firstNode;
 
+  // rebuilding the Curve itself
   int k=0;
   int binCoef = 1;
@@ -96 +119 @@
       tmpNode->factor = binCoef;
       tmpNode = tmpNode->next;
+    }
+
+  // rebuilding the Derivation curve
+  if(this->derivation == 0)
+    {
+      tmpNode = firstNode;
+      delete dirCurve;
+      dirCurve = new BezierCurve(1);
+      while(tmpNode->next)
+        {
+          Vector tmpVector = (tmpNode->next->position)- (tmpNode->position);
+          tmpVector.x*=(float)nodeCount;
+          tmpVector.y*=(float)nodeCount;
+          tmpVector.z*=(float)nodeCount;
+          tmpVector.normalize();
+          this->dirCurve->addNode(tmpVector);
+          tmpNode = tmpNode->next;
+        }
     }
 }
@@ -134 +175 @@
 Vector BezierCurve::calcDir (float t)
 {
-  PathNode* tmpNode = firstNode;
-  BezierCurve* tmpCurve = new BezierCurve();
-  Vector ret;
-  Vector tmpVector;
-
-  while (tmpNode->next != 0)
-    {
-      tmpVector = (tmpNode->next->position)- (tmpNode->position);
-      tmpVector.x*=(float)nodeCount;
-      tmpVector.y*=(float)nodeCount;
-      tmpVector.z*=(float)nodeCount;
-
-      tmpCurve->addNode(tmpVector);
-      tmpNode = tmpNode->next;
-    }
-  ret = tmpCurve->calcPos(t);
-  ret.normalize();
-
-  return ret;
+  return static_cast<BezierCurve*>(dirCurve)->calcPos(t);
 }