lines moving around

something.pde

int scene = 0;


void setup () {
  //size (1280, 720);
  size (displayWidth, displayHeight);
  smooth();
  noCursor();
}


void draw() {
  background(0);  
  
  // -- 
  //noStroke();
  ////fill(0,(mouseY/float(height) * 255.0));
  //fill(0, 150);
  //rect(0,0,width,height);
  
  
  translate(width/2, height/2);
  //rotate(radians(frameCount * 0.905));
  rotate(radians(90));
  translate(-width/2, -height/2);
  switch(scene) {
    case 0:
      int topNum = 100;
      for (int i = 0; i < topNum; i++) {
        scene0(float(i)/float(topNum) /5.0, float(i)/float(topNum) * float(height));
      }
      break;
    case 1:
    
      break;
    default:
      break;
  }

  
  
}
  
void scene0(float lineYspeed, float lineYoffset) {
  //background(0);
  //float lineYspeed = 0.25;
  //float lineYoffset = 50;
  float lineY = ((((millis()*lineYspeed) + lineYoffset) % height)*-1) + height;
  
  strokeWeight(10);
  stroke(abs((frameCount%510)-255));
  line(width/2 - 10, lineY,width/2 + 20, lineY);
  
  
}