Added bezier curves

src/helpers/BezierCurve.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "../defines.hpp"
+#include <deque>
+
+// an implementation of a cubic bezier curve
+// might do better later
+// TODO: n-point curves
+class CBezierCurve {
+public:
+    // sets up the bezier curve.
+    // this EXCLUDES the 0,0 and 1,1 points,
+    void    setup(std::vector<Vector2D>* points);
+
+    float   getYForT(float t);
+    float   getXForT(float t);
+    float   getYForPoint(float x);
+
+private:
+    // this INCLUDES the 0,0 and 1,1 points.
+    std::deque<Vector2D>    m_dPoints;
+
+    std::array<float, 100>  m_aPointsBaked;
+};