シンガポール🇸🇬みたいな円状に均等に星を配置するやつ

circleStars.pde

// 🇸🇬
size(120, 120);
background(255);
noStroke();
fill(152, 251, 152);

int a[] = {1,4,2,5,3};
int b;
float x;
float y;

float center_x;
float center_y;

for (int i = 0; i < 5; i++) {
  center_x = 50 * cos(2 * PI * i / 5 + PI / 2) + 60;
  center_y = 50 * sin(2 * PI * i / 5 - PI / 2) + 60;
  beginShape();
  for (int j = 0; j < 5; j++) {
    b = a[j] - 1;
    x = 10 * cos(2 * PI * b / 5 + PI / 2) + center_x;
    y = 10 * sin(2 * PI * b / 5 - PI / 2) + center_y;
    vertex(x, y);
  }
  endShape();
}