Initial import of KREngine

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extra : convert_revision : svn%3A7752d6cf-9f14-4ad2-affc-04f1e67b81a5/trunk%404

objview/Classes/krengine/KRVector3.h

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+//
+//  KRVector3.h
+//  gldemo
+//
+//  Created by Kearwood Gilbert on 10-12-31.
+//  Copyright 2010 Kearwood Software. All rights reserved.
+//
+
+#ifndef KRVECTOR3
+#define KRVECTOR3
+#include <math.h>
+
+class Vector3
+{
+
+public:
+    float x, y, z;
+    
+	//default constructor
+    
+	Vector3(float X, float Y, float Z);
+	~Vector3();
+    
+	//calculate and return the magnitude of this vector
+	float GetMagnitude();
+    
+	//multiply this vector by a scalar
+	Vector3 operator*(float num) const;
+    
+	//pass in a vector, pass in a scalar, return the product
+	//friend Vector3 operator*(float num, Vector3 const &vec);
+    
+	//add two vectors
+	Vector3 operator+(const Vector3 &vec) const;
+    
+	//subtract two vectors
+	Vector3 operator-(const Vector3 &vec) const;
+    
+	//normalize this vector
+	void normalize();
+	
+	//calculate and return dot product
+	float dot(const Vector3 &vec) const;
+    
+	//calculate and return cross product
+	Vector3 cross(const Vector3 &vec) const;
+};
+
+#endif