class Wave{
  float yoff;
  float xoff;
  float xgoff;
  float speed;
  color c;
  float s=0;
  
  
  Wave(color tempc, float tempXpos, float tempYpos){
    c=tempc;
    xgoff=tempXpos;
    speed=tempYpos;
  }
  
  void up(){
    fill(c);
    noStroke();
    beginShape();
    float xoff = 0;
    for (float x = 0; x <= width; x += 10) {
    float y = map(noise(xoff, yoff), 0, 1, 100,150);
    vertex(x, y+(700-s));
    xoff += 0.05+xgoff;
      }
    yoff += 0.01;
    vertex(width, height);
    vertex(0, height);
    endShape(CLOSE);
    if (millis()>3000){
    s=s+0.1;
    }
  }
}