gistfile1.txt

/*
	 NATO (North Atlantic Treaty Organization)'s Logo using turtle
	 author: Manthan Patil, 26, september 2023
*/

#include "simplecpp"
#include <math.h>

void backward(int n) {
	left(180);
	forward(n);
	left(180);
}

void fbpool(int n) {
	forward(n); backward(n);
}

void draw_circle(int r) {
	penDown();
	int step = 10;
	int d = 0;
	int f = 3;
	for(int i=0; i<r; i++) {
		if (i +d < f) penUp();
		else if(abs(i -r +d) < f) penUp();
		else if(abs(i - r/4 +d) < f) penUp();
		else if(abs(i - (r/2) +d) < f) penUp();
		else if(abs(i - (r/2) - (r/4) +d) < f) penUp();
		else penDown();
		backward(step); left(360/r);
	}
	left(step-10);
	backward(step/4 + 1);
	right(180);
	penDown();
}

int main(void){
	turtleSim();
	left(90);

	// forward 120
	penUp();
	forward(80);
	right(90);
	draw_circle(60);
	left(180+90);
	forward(40);
	right(165);
	penDown();

	for(int i =0 ; i< 7; i++) {
		forward(110);
		
		right(60);
		fbpool(35);
		left(60);

		left(60);
		forward(110);

		right(75);
		right(90);
		fbpool(135);
		left(90);
		right(75);
	}
	wait(100);
}