Lines and Stuff but with rAINBOWS

sketch381484
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float t;
int screenDivs = 3;
 
float x1(float t){
  return sin(t/(mouseX/(width/screenDivs)))*200 + sin(t/6)*300;
}
 
float y1(float t) {
  return cos(t/10)*100;
}
 
int num = random(5, 15);
float x2(float t){
  return sin(t/num)*200 + sin(t)*2;
}
 
float y2(float t) {
  return cos(t/(map(mouseY, 0, height, 0, width)/(width/screenDivs)))*200 + cos(t/12)*20;
}
 
static final int NUM_LINES = 20;
static final int NUM_LINES2 = 20;
 
 
 
void setup(){
  size(screenWidth, screenHeight);
  colorMode(HSB, width, 1, 1, 1)
}
 
 
void draw(){
  background(width, 0, 1, 1);
 
  stroke(mouseX, 1, 1, 1);
  strokeWeight(5);
  translate(width/2, height/2);
   
   stroke(mouseX, 1, 1, 1);
  for (int i = 0; i < NUM_LINES; i++){
    line(x1(-t+i*2), y1(-t+i*2),x2(-t+i), y2(-t+i));
  }
  stroke(mouseY, 1, 1, 1);
    for (int i = 0; i < NUM_LINES2; i++){
    line(x1(t+i), y1(t+i),x2(t+i), y2(t+i));
  }
 
  t += 0.2;
}