shu^~

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(0);

  noStroke();

  let hugou = 1.0;

  for (let i=0; i<5000; i++){

    let y = random(height);

    let param = y*100/windowHeight;

    let shift = 100-random(param,100);

    let eita = random(100);

    if (shift < eita){hugou = hugou*(-1.0)}

    let e = 100;

    let shita = random(-(log(windowHeight-y)),log(windowHeight-y))

    let x = random(windowWidth*1/2-(windowHeight-y)+e*hugou, windowWidth*1/2+(windowHeight-y))+e*hugou;

    let diameter;

    if (hugou<=0){    

      fill(random(127, 255), random(0,127),random(0,127),127);

      diameter=random(min(y/10.0,10));

          if (x>windowWidth/2 || x<0){

      continue;

          }

    }

    else{

      fill(random(0,127), random(127,255),random(127,255),127);

      diameter=random(max(10,sqrt((height-y))+5));

          if (x<windowWidth/2 || x>windowWidth){

      continue;

          }

    }

    ellipse(x,y,diameter, diameter);

  }

}

​

​