function Drop() {
this.x = random(width);
this.y = random(-500, -50);
this.z = random(0, 20);
this.len = map(this.z, 0, 20, 10, 20);
this.yspeed = map(this.z, 0, 20, 1, 20);
this.fall = function() {
this.y = this.y + this.yspeed;
var grav = map(this.z, 0, 20, 0, 0.2);
this.yspeed = this.yspeed + grav;
if (this.y > height) {
this.y = random(-200, -100);
this.yspeed = map(this.z, 0, 20, 4, 10);
}
}
this.show = function() {
var thick = map(this.z, 0, 20, 1, 3);
strokeWeight(thick);
stroke(138, 43, 226);
line(this.x, this.y, this.x, this.y+this.len);
}
}