diff -r 180072db4a83 -r a39f454a3d7f src/inputvertices.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/inputvertices.h	Sun Jul 03 20:18:34 2022 +0300
@@ -0,0 +1,39 @@
+#pragma once
+#include "src/basics.h"
+
+class InputVertices
+{
+	std::vector<glm::vec3> polygon = {origin};
+	std::size_t numpoints = 1;
+public:
+	bool currentPointOnExistingPoint() const;
+	std::size_t calcNumPoints() const;
+	void updateCurrentPoint(const glm::vec3& p);
+	void removeLastPoint();
+	void finishCurrentPoint();
+	void clear();
+	const glm::vec3& operator[](std::size_t i) const
+	{
+		return this->polygon[i];
+	}
+	std::size_t bufferSize() const
+	{
+		return this->polygon.size();
+	}
+	std::size_t polygonSize() const
+	{
+		return this->numpoints;
+	}
+	auto begin() const
+	{
+		return std::begin(this->polygon);
+	}
+	auto end() const
+	{
+		return std::end(this->polygon);
+	}
+	auto polygonEnd() const
+	{
+		return std::begin(this->polygon) + static_cast<long int>(this->numpoints);
+	}
+};