Lluvia

var xPositions = [];
var yPositions = [];
var t = 25;
var t2=0;
var t3=1;
for(var i=0;i<t;i++) {
    xPositions[i]= random(5,395);
    yPositions[i]= random(5,395);
}


draw = function() {
    background(204, 247, 255);

    for (var i = 0; i < xPositions.length; i++) {

        noStroke();
        fill(0, 200, 255);
        if(yPositions[i]>400) {
            yPositions[i]=0;
            xPositions[i]=random(5,395);
        }
        if(mouseIsPressed && (t3>t2)) {
        xPositions.push(mouseX);
        yPositions.push(mouseY);
        t2++;
        } else if(!mouseIsPressed && (t2===t3)) {
            t3++;
        }

        ellipse(xPositions[i], yPositions[i], 10, 10);
        yPositions[i] += 5;
    }

};