ported the University CGI demo from WINDOWS + GLUT + GLEW + GLU + OpenGL 4 to LINUX WAYLAND + EGL + GLES 2 with minimal cuts

GL_STUFF/HEADERS/CURVES/CurveIterator.hpp

@@ -0,0 +1,35 @@
+#pragma once
+#include "./Curve.hpp"
+
+enum class CurveIterationMode
+{
+	BASIC,
+	LENGTH
+};
+
+class CurveIterator {
+private:
+	Curve *curve;
+	unsigned int steps;
+	CurveIterationMode iterationMode;
+	float estimatedLength;
+	int basicStepCounter;
+	float lengthStepCounter;
+	float leftBound;
+	float rightBound;
+	float lastIncrement;
+
+	void resetIterator();
+	void computeLength();
+
+public:
+	CurveIterator(Curve *curve, unsigned int steps, CurveIterationMode basicOrLength);
+	void nextStep();
+	float getStep();
+	void setProgress(float at);
+	glm::vec3 evaluation();
+	glm::vec3 derivation();
+
+	Curve* getCurve();
+
+};