void setup() {
   size(600, 600);
   background(255);
   noLoop();
   } // setup()

void draw() {
   // Draw a polygon
   stroke(0);
   polygon(100, 100, 5, 150);
   
   // Draw a filled polygon
   noStroke();
   fill(252, 107, 107);
   filledPolygon(width/2, height/2, 6, 300);
   
   } // draw()

void polygon(float x, float y, int N, float s) {
   // Draw a  polygon of N sides of size, s at <x, y>
   float r = s/2;
   float theta = 0.0;
   float delta = TWO_PI/N;
   void setup() {
 size(600, 600);
 background(255);
 noLoop();
 } // setup()

void draw() {
   // Draw a polygon
   stroke(0);
   polygon(100, 100, 5, 150);
   
   // Draw a filled polygon
   noStroke();
   fill(252, 107, 107);
   filledPolygon(width/2, height/2, 6, 300);
   
   } // draw()

void polygon(float x, float y, int N, float s) {
   // Draw a  polygon of N sides of size, s at <x, y>
   float r = s/2;
   float theta = 0.0;
   float delta = TWO_PI/N;
   
   pushMatrix();
   translate(x, y);
   float x1 = r * cos(theta);
   float y1 = r * sin(theta);
   for (int i=1; i <= N; i++) {
   theta = theta + delta;
   float x2 = r*cos(theta);
   float y2 = r* sin(theta);
   stroke(0);
   line(x1, y1, x2, y2);
   x1 = x2;
   y1 = y2;

 }
   popMatrix();
   } // polygon()

void filledPolygon(float x, float y, int N, float s) {
   // Draw a  fillable polygon of N sides of size, s at <x, y>
   float r = s/2;
   float theta = 0.0;
   float delta = TWO_PI/N;
   
   pushMatrix();
   translate(x, y);
   beginShape();
   for (int i=1; i <= N+1; i++) {
   theta = theta + delta;
   float x1 = r*cos(theta);
   float y1 = r*sin(theta);
   vertex(x1, y1);
   }
   endShape(CLOSE);
   popMatrix();
   } // filledPolygon()