void setup(){
size(800, 600);
background(255);
}

void draw(){
  mostraBandeiraBrasil(0, 0, 600);
}

void mostraBandeiraBrasil(int x, int y, int l){
  int m = l/20;
  int a = m*14;


  fill(0, 169, 89);
  noStroke();
  rect(x, y, l, a);

  fill(255, 204, 41);
  int mLos = m+(7*m)/10;

  quad(x+l/2, y+mLos,
       x+l-mLos, y+a/2,
       x+l/2, y+a-mLos,
       x+mLos, y+a/2);

  fill(62, 64, 149);
  int diametro = round((m*3.5)*2);
  ellipse(x + l/2, y + a/2, diametro, diametro);
}