さやえんどう

/**
* pea
*
* @author aa_debdeb
* @date 2016/10/02
*/

void setup(){
  size(640, 480);
}

void draw(){
  
  background(0);
  stroke(0, 255, 0);
  strokeWeight(50);
  line(120, height / 2, 520, height / 2);
  stroke(0);
  strokeWeight(40);
  line(120, height / 2, 520, height / 2);  
  noStroke();
  fill(0, 255, 0);
  for(int i = 0; i <= 300; i++){
    if(i % 20 == frameCount % 20){
      float x = map(i, 0, 300, 120, 520);
      ellipse(x, height / 2, 20, 20);
    }
  }
  
}