1 files changed, 65 insertions, 0 deletions
diff --git a/kue/vector.h b/kue/vector.h
new file mode 100644
index 00000000..f1a0947a
--- /dev/null
+++ b/kue/vector.h
@@ -0,0 +1,65 @@
+#ifndef _VECTOR_H
+#define _VECTOR_H
+
+#include <math.h>
+#include "point.h"
+
+// Implements a vector in 2D
+class vector {
+  public:
+	// Normal constructors
+	vector(double magnitude, double direction) { _magnitude = magnitude; _direction = direction; }
+	vector(const point& source, const point& dest);
+	vector();
+
+	// Copy constructor
+	vector(const vector&);
+
+	// Accessors, sorta
+	double componentX() const { return (_magnitude * cos(_direction)); };
+	double componentY() const { return (_magnitude * sin(_direction)); };
+
+	// Sets individual components
+	// Wrappers around setComponents(double, double) - below
+	void setComponentX(double x);
+	void setComponentY(double y);
+
+	// Sets both components at once
+	void setComponents(double x, double y);
+
+	// Accessors
+	double magnitude() const { return _magnitude; }
+	double direction() const { return _direction; }
+	void setMagnitude(double m) { _magnitude = m; }
+	void setDirection(double d) { _direction = d; }
+
+	// Vector math
+	vector operator+(const vector&);
+	vector operator-(const vector&);
+
+	vector& operator+=(const vector&);
+	vector& operator-=(const vector&);
+
+	// Dot product
+	double operator*(const vector&);
+
+	// Magnitude math
+	vector operator+(double m) { return vector(_magnitude + m, _direction); }
+	vector operator-(double m) { return vector(_magnitude - m, _direction); }
+	vector operator*(double m) { return vector(_magnitude * m, _direction); }
+	vector operator/(double m) { return vector(_magnitude / m, _direction); }
+
+	vector& operator+=(double m);
+	vector& operator-=(double m);
+	vector& operator*=(double m);
+	vector& operator/=(double m);
+
+	// Return the vector's equalivent on the unit circle
+	vector unit() const { return vector(1.0, _direction); }
+
+  protected:
+	double _magnitude;
+	double _direction;
+};
+
+#endif