wavy circles
@author
void setup(){
size(640, 640);
background(0, 0, 10);
}
void draw(){
fill(0, 0, 10, 100);
noStroke();
rect(0, 0, width, height);
translate(width / 2, height / 2);
noFill();
for(int i = 0; i < 10; i++){
float radiusBase = 25 * (i + 1);
float angleBase = cos(map(frameCount % 100, 0, 99, -PI, PI)) * HALF_PI;
if(i % 2 == 0){
stroke(249, 231, 0, 200);
} else {
stroke(216, 46, 139, 200);
angleBase *= -1;
}
beginShape();
for(float angle = 0; angle < 360; angle += 1){
float radian = radians(angle);
float radius = radiusBase + 10 * sin(radian * 24 + angleBase);
vertex(radius * cos(radian), radius * sin(radian));
}
endShape(CLOSE);
}
}