Author: Eunice

sketch

/*Eunice Choe
Section E
ejchoe@andrew.cmu.edu
Final Project*/

// options variable
var option = 1;

// scene 1
var Px = [];
var Py = [];
var Pdx = [];
var Pdy = [];
var newP = [];

// scene 2
var r = 220;
var g = 247;
var b = 255;
var cloud = [];
var landscape = 0.002;
var spot = [];
var flowers = [];

// scene 3
var img;

// spring constants (blinds pulling bar)
var springHeight = 32;
var left;
var right;
var maxHeight = 100;
var minHeight = 200;
var over = false;
var move = false;

// spring constants (main blinds)
var mass = 0.8;
var sConstant = 0.2;
var damping = 0.92;
var rest = 40;

// spring movement variables
var ps = rest;   // position
var vs = 0.0; // velocity
var as = 0;   // acceleration
var f = 0;    // force

//scene 4
var img4;
var input;
var analyzer;


function preload() {
    img = loadImage("https://i.imgur.com/IdD3GJq.png");
    img4 = loadImage("https://i.imgur.com/sR307j6.png?2");
}

function setup(){
    createCanvas(480, 300);
// initializing floating particles
    for (i = 0; i < 100; i++) {
        Px[i] = random(480);
        Py[i] = random(300);
        Pdx[i] = random(-5, 5);
        Pdy[i] = random(-5, 5);
    }
    frameRate(10);

    push();
    angleMode(DEGREES);
    // initial collection of flowers and clouds
    for (var i = 0; i < 10; i++) {
        var cloudX = random(width);
        var rx = random(width);
        cloud[i] = makeCloud(cloudX);
        flowers[i] = makeFlowers(rx);
    }

// initializing lefts and rights for spring
    left = width/2 - 150;
    right = width/2 + 150;

// initializing audio input
    input = new p5.AudioIn();
    input.start();
}

function draw() {
    background(220, 247, 255);
    noStroke();
// scene 1
    if (option == 1){
        scene1();
    }
// scene 2
    else if (option == 2) {
        scene2();
    }
// scene 3
    else if (option == 3) {
        scene3();
    }
// scene 4
    else if (option == 4) {
        scene4();
    }
}

function scene1() {
    translate(width / 2, height / 2);
// flower petals
    for (var i = 0; i < 20; i ++) {
        fill(255, 224, 122, 90);
        ellipse(0, 30, 100, 500);
        rotate(PI * 8);
  }
// flower center
    for (var i = 0; i < 10; i ++) {
        fill(84, 46, 13, 80);
        ellipse(0, 0, 100, 200);
        rotate(PI * 8);
  }
// floating particles
    for (i = 0; i < 500; i++) {
        fill(255, 90);
        ellipse(Px[i], Py[i], 10, 10);
        Px[i] += Pdx[i];
        Py[i] += Pdy[i];
    }
}

function scene2(){
    background(r, g, b);
    if (mouseX > 0 & mouseX < width) {
        r = 229 - mouseX / 20;
        g = 247 - mouseX / 50;
        b = 224 + mouseX / 20;
    }
// grass in the back; randomizes when page refreshed
    beginShape();
    fill(139, 189, 125);
    vertex(0, height);
    for (var x = 0; x < width; x++) {
        var t = x * landscape;
        var y = map(noise(t), 0, 1, 0, height / 2);
        vertex(x, y + 100);
    }
    vertex(width, height);
    endShape();
    updateFlowers();
// rain when mouse is pressed
    if (mouseIsPressed) {
        frameRate(90);
        fill(255);
        spot.x = random(width);
        spot.y = random(height);
        ellipse(spot.x, spot.y, 5, 70);
    }
// clouds
    for (var i = 0; i < cloud.length; i++) {
        cloud[i].draw();
        cloud[i].move();
    }
}

function scene3() {
    image(img, 0, 0);
    fill(156, 38, 27);
    rect(0, 0, 100, height);
    rect(380, 0, 100, height);
    rect(100, 0, 280, 40);
    rect(100, 260, 280, 40);
    fill(242, 235, 202);
    rect(90, 270, 300, 10);
    fill(201, 196, 168);
    quad(100, 260, 380, 260, 390, 270, 90, 270);
    stroke(74, 89, 79);
    noFill();
    strokeWeight(10);
// sky gets darker when mouse is in window
    if ((mouseX > 100) & (mouseX < 380) &&
        (mouseY > 40) && (mouseY < 260)) {
        fill(43, 29, 133, 50);
    }
    rect(100, 40, 280, 220);
    updateSpring();
    drawSpring();
}

function scene4() {
    image(img4, 0, 0);
    push();
    var volume = input.getLevel();
// if the volume of the sound goes above threshold, then a firefly will appear
// fireflies are at random positions and their sizes reflect the volume
    var threshold = 0.05;
    if (volume > threshold) {
        push();
        frameRate(10);
        noStroke();
        fill(199, 255, 57);
        ellipse(random(width), random(170, height), volume * 50, volume * 50);
        pop();
    }
    fill(161, 156, 125);
    rect(40, 120, 60, 145);
    pop();
}

function updateFlowers() {
    // Update the flowers positions; random when page refreshed
    for (var i = 0; i < flowers.length; i++){
        flowers[i].display();
    }
}

function flowersDisplay() {
    var floorHeight = 10;
    var bHeight = this.nFloors * floorHeight * 2;
    noStroke();
    push();
    translate(this.x, height);
    fill(204, 187, 145);
    rect(0, -bHeight, this.breadth, bHeight);
    noStroke();
    translate(0, -bHeight);
    for (var i = 0; i < 20; i ++) {
        fill(255, 224, 122, 90);
        ellipse(0, 30, 20, 50);
        rotate(PI * 8);
    }
    fill(84, 46, 13, 90);
    ellipse(0, 0, 30, 30);
    pop();

}

function makeFlowers(birthLocationX) {
    var fl = {x: birthLocationX,
             breadth: 5,
             nFloors: round(random(2,8)),
             display: flowersDisplay}
    return fl;
}

function cloudDraw() {
    push();
    translate(this.xPos, this.yOffset);
    stroke(255, 255, 255, 70);
    strokeWeight(this.cHeight);
    line(0, 0, this.cSize, 0);
    pop();
}

function cloudMove() {
    this.xPos += this.speed;
    if(this.xPos < 0 - this.cSize - 30) {
        this.cHeight = random(10, 50);
        this.cSize = random(30, 150);
        this.xPos = width + this.cSize + random(-25, 25);
    }
}

function makeCloud() {
    var cloud = {xPos: random(width), //, width*4
                speed: random(-3, -1),
                cSize: random(30, 150),
                cHeight: random(20, 60),
                yOffset: random(50, height),
                draw: cloudDraw,
                move: cloudMove};
    return cloud;
}

function drawSpring() {
// draw main cream blinds
    noStroke();
    fill(255, 251, 243);
    rect(100, ps + springHeight, 280, - height);
    var baseWidth = 20;
    push();
    rectMode(CORNERS);
// if mouse is over gray bar, turn white
    if (over || move) {
        fill(255);
    } else {
        fill(204);
    }

    rect(left, ps, right, ps + springHeight);
    pop();
}

function updateSpring() {
// update the spring position
    if (!move) {
        f = -sConstant * ( ps - rest );
        as = f / mass; // acceleration
        vs = damping * (vs + as); // velocity
        ps = ps + vs;        // updated position
    }

    if (abs(vs) < 0.1) {
        vs = 0.0;
    }

  // see if mouse is over bottom bar
    if (mouseX > left & mouseX < right && mouseY > ps && mouseY < ps + springHeight) {
        over = true;
    } else {
        over = false;
    }

// constrain position of bottom bar
    if (move) {
        ps = mouseY - springHeight/2;
        ps = constrain(ps, minHeight, maxHeight);
    }
}

function mousePressed() {
    if (over) {
        move = true;
    }
}

function mouseReleased() {
    move = false;
}

// move through 4 slides
function keyPressed() {
    option++;
    if (option > 4) option = 1;
}

My final project is based off of a book I enjoyed from childhood called Zoom, by Istvan Banyai. I tried to replicate a small glimpse of the premise of the book, which is to keep zooming out as each page is turned. My project starts off with a zoomed in sunflower and it eventually zooms out to a house. In my project, I wanted to make the zoom outs seem less static, so I incorporated movement and interactions in each scene. Some interactions include clicking for a spring effect, pressing for rain, moving the mouse around for color changes, and making sounds for objects to appear.

Instructions:
Press any key to move on to the next scene.