From 2c9e137ea35af80be7acf70b60b9d771faa607b2 Mon Sep 17 00:00:00 2001
From: nedko <nedko@internedko.net>
Date: Mon, 12 Sep 2022 17:18:30 +0300
Subject: [PATCH] Initial commit with working code

---
 .gitignore |   2 ++
 Makefile   |   2 ++
 main.cpp   | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 105 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 main.cpp

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..471d180
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+polygon
+polygon.exe
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..e1a80ec
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+all:
+	g++ main.cpp -o polygon
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..e85ba3e
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,101 @@
+#include <iostream>
+#include <string>
+
+#include <math.h>
+
+using namespace std;
+
+constexpr int Y_DIR = 1;
+
+double radians(double degrees)
+{
+	return degrees * M_PI / 180.0;
+}
+
+void usage(const string& name)
+{
+	cout << "Usage: " << name << "<x> <y> <center> <count> <angle> <length>" << endl;
+	cout << "\tx - x coordinate of first point" << endl;
+	cout << "\ty - y coordinate of first point" << endl;
+	cout << "\tcenter - 0/1 - whether first point is center of polygon" << endl;
+	cout << "\tcount - ammount of points" << endl;
+	cout << "\tangle - rotation in degrees" << endl;
+	cout << "\tlength - length of side (when not center) - external radius of polygon (when center)" << endl;
+}
+
+void center_polygon(double x, double y, int count, double angle, double radius)
+{
+	double x_calc;
+	double y_calc;
+
+	for (int i = 0; i < count; ++i)
+	{
+		x_calc = cos(radians((360.0 / count) * i + angle)) * radius + x;
+		y_calc = sin(radians((360.0 / count) * i + angle)) * radius + y;
+
+		cout << x_calc << "," << y_calc << endl;
+	}
+}
+
+void corner_polygon(double x, double y, int count, double angle, double length)
+{
+	double x_calc;
+	double y_calc;
+
+	x_calc = 0;
+	y_calc = 0;
+
+	cout << x << "," << y << endl;
+
+	for (int i = 0; i < count - 1; ++i)
+	{
+		x_calc = x_calc + cos(radians(angle)) * length;
+		y_calc = y_calc + sin(radians(angle)) * length;
+
+		cout << x_calc + x << "," << y_calc + y << endl;
+
+		angle += (360.0 / count);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	double x;
+	double y;
+	bool center;
+	int count;
+	double angle;
+	double length;
+
+	if (argc < 7)
+	{
+		usage(argv[0]);
+		cout << "Insufficient arguments" << endl;
+		return -1;
+	}
+
+	x = stod(argv[1]);
+	y = stod(argv[2]);
+	center = (0 != stoi(argv[3]));
+	count = stoi(argv[4]);
+	angle = stod(argv[5]);
+	length = stod(argv[6]);
+
+	if (count < 1)
+	{
+		usage(argv[0]);
+		cout << "Wrong ammount of points" << endl;
+		return -1;
+	}
+
+	if (center)
+	{
+		center_polygon(x, y, count, angle, length);
+	}
+	else
+	{
+		corner_polygon(x, y, count, angle, length);
+	}
+
+	return 0;
+}