// key "f" for brush color

var painting;

​

function setup() {

    initializeFields();

    createCanvas(900, 700);

    background(253, 253, 250);

    fill(96, 169, 166, 160);

    frameRate(120);

    stroke(10);

}

​

function draw() {

    noStroke();

    rect(0, 0, width, 20);

    textSize(12);

    text("f - change brush color", width-170, height-30); 

    text("b - change background color", width-170, height-45);

    if (painting === true) {

        var ellipseHW = random(40, 90);

        stroke(0, 20);

        ellipse(mouseX, mouseY, ellipseHW, ellipseHW);

    }

}

​

function mouseClicked() {

    painting = !painting;

    print(painting);

}

​

function keyReleased() {

    if (key == 'b' || key == 'B') {

        background(random(200, 230), random(210, 220), random(200, 210));

    }

    if (key == 'f' || key == 'F') {

        fill(random(160, 255), random(160, 220), random(160, 220), random(140, 210));

    }

    if (key == 's' || key == 'S') {

        save("image-" + frameCount + ".jpg");

    }

}

​

function initializeFields() {

    painting = false;

}

​

​