Author: Claire

sketch

var terrainSpeed = 0.0005;
var terrainDetail = 0.01;
var buildings = [];
var stars = [];
var balls = []; 
var clouds = [];


function preload() {
    castleImage = loadImage("https://i.imgur.com/enlJeCX.png");
}

function setup() {
    createCanvas(480, 320);
    frameRate(10);
    
    for (var i = 0; i < 3; i++){
        var rx = random(width);
        buildings[i] = makeBuilding(rx);
    }
    
    for (var g = 0; g < 150; g ++) {
        var ry = random(width);
        stars[g] = makeStar(ry);
    }
    
    for (var h = 0; h < 5; h ++) {
        var rz = random(width);
        clouds[h] = makeCloud(rz);
    }
}   
 


function draw() {
    background(255);
    
    var sky1 = color(33, 25, 64);
    var sky2 = color(6, 41, 100);
    var sky3 = color(135, 110, 168);
    var sky4 = color(201, 159, 161);
    var sky5 = color(254, 219, 155);
    var sky6 = color(246, 179, 124);

    
    for (var c = 0; c <= height/3.5; c += 1) {
        var amt = map(c, 0, height/3.5, 0, 1);
        var skygradient1 = lerpColor(sky1, sky2, amt);
        noStroke();
        fill(skygradient1);
        rect(0, c, width, 1);
    }
    
    for (var d = 0; d <= height/2.5; d ++ ) {
         var amt = map(d, 0, height/2.5, 0, 1);
         var skygradient2 = lerpColor(sky2, sky4, amt);
         noStroke();
         fill(skygradient2);
         rect(0, c + d, width, 1);
         }
    
    for (var e = 0; e <= height/5; e ++ ) {
         var amt = map(e, 0, height/5, 0, 1);
         var skygradient3 = lerpColor(sky4, sky2, amt);
         noStroke();
         fill(skygradient3);
         rect(0, c + d + e, width, 1);
         }
    
    
    image(castleImage, 20, 70, 120,120);
    
    updateAndDisplayStars();
    removeStarsThatHaveSlippedOutOfView();
    addNewStarsWithSomeRandomProbability();
    createHill();
    drawRectangle();
    createHillShadow();
   
    updateAndDisplayBuildings();
    removeBuildingsThatHaveSlippedOutOfView();
    addNewBuildingsWithSomeRandomProbability(); 
    
    makeballs();
    
    updateAndDisplayClouds();
    removeCloudsThatHaveSlippedOutOfView();
    addNewCloudsWithSomeRandomProbability();
    
    newBalls = []; // Creates an empty array that will store the values of the newly-created balls
        for (var i = 0; i < balls.length; i++) { 
            var p = balls[i];
            p.speedy(); //returns the function speed() which makes the balls move
            p.balls(); //returns the function balls() which assigns the balls their properties
            newBalls.push(p); 
        }
    balls = newBalls;
}



function updateAndDisplayStars(){
    // Update the lantern's positions, and display them.
    for (var i = 0; i < stars.length; i++){
        stars[i].move();
        stars[i].display();
    }
}


function removeStarsThatHaveSlippedOutOfView(){
    var starsToKeep = [];
    for (var i = 0; i < stars.length; i++){
        if (stars[i].x> 0) {
            starsToKeep.push(stars[i]);
        }
    }
    stars = starsToKeep;
}


function addNewStarsWithSomeRandomProbability() {
    // With some possibility, add a new lantern
    var newStarLikelihood = 0.5; 
    if (random(0,1) < newStarLikelihood) {
        stars.push(makeStar(width));
    }
}


// Makes the lanterns move
function starMove() {
    this.x -= this.speed;
}
    

// Draws the lanterns
function starDisplay() {
    fill(250, 254, 149);
    rect(this.breadth, this.x, this.size, this.size*1.5)
}


function makeStar(birthLocationX) {
    var star = {x: birthLocationX,
                y: random(10,70),
                breadth: random(width),
                breadthy: random(height),
                speed: random(0.1,4),
                move: starMove,
                display: starDisplay,
                size: random(2,7)
               }
    return star;
}




function createHill() {
    var noiseScale = 0.001;
    var forestDetail = 0.0005;
    var forestSpeed = 0.0005;

    for (g = 0; g < width; g++) {
        h = (g * forestDetail * 8 + millis() * forestSpeed/8);
        i = map(noise(h), 0, 1, 40, 100);
           stroke(30);
           line(g, i+100, g, height-80);
    }  
}




function drawRectangle() {
    var sky1 = color(33, 25, 64);
    var sky2 = color(37, 55, 127);
    var sky3 = color(135, 110, 168);
    var sky4 = color(201, 159, 161);
    var sky5 = color(254, 219, 155);
    var sky6 = color(246, 179, 124);
    
    for (var e = 0; e <= height/5; e ++ ) {
         var amt = map(e, 0, height/5, 0, 1);
         var skygradient3 = lerpColor(sky6, sky1, amt);
        noStroke();
        fill(skygradient3);
        rect(0, 240+e, width, 1);
         }
    
    fill(sky1);
    rect(0, 240+e, width, height-(240+e))
    
    
}


function createHillShadow() {
    var noiseScale = 0.001;
    var forestDetail = 0.0005;
    var forestSpeed = 0.0005;

    
    var noiseScale = 0.001;
    var forestDetail = 0.0005;
    var forestSpeed = 0.0005;
    
    push();
    translate(0,480)
    scale(1,-1)
    // 3rd "layer" of forest
    for (g = 0; g < width; g++) {
        h = (g * forestDetail * 8 + millis() * forestSpeed/8);
        i = map(noise(h), 0, 1, 40, 100);
           stroke(30,70);
           line(g, i+150, g, height-80);
    }  
    pop();
}




//Below: set of functions that create the boats
function updateAndDisplayBuildings(){
    // Update the building's positions, and display them.
    for (var i = 0; i < buildings.length; i++){
        buildings[i].move();
        buildings[i].display();
    }
}


function removeBuildingsThatHaveSlippedOutOfView(){
    var buildingsToKeep = [];
    for (var i = 0; i < buildings.length; i++){
        if (buildings[i].x + buildings[i].breadth +30 > 0) {
            buildingsToKeep.push(buildings[i]);
        }
    }
    buildings = buildingsToKeep; // remember the surviving buildings
}


function addNewBuildingsWithSomeRandomProbability() {
    // With a very tiny probability, add a new building to the end.
    var newBuildingLikelihood = 0.009; 
    if (random(0,1) < newBuildingLikelihood) {
        buildings.push(makeBuilding(width));
    }
}


// method to update position of a boat every frame
function buildingMove() {
    this.x -= this.speed;
}
    

// draw the boats
function buildingDisplay() {
    var floorHeight = 20;
    var bHeight = this.nFloors * floorHeight; 
    fill(this.R, this.G, this.B); 
    noStroke(); 
    push();
    translate(this.x, height-this.y);
    rect(0, -bHeight, this.breadth, bHeight);
    triangle(-30, -bHeight, 0, -bHeight, 0, 0);
    triangle(this.breadth+30, -bHeight, this.breadth, -bHeight, this.breadth, 0)
    stroke(200); 
    pop();
    
    
    //draws the reflections of the boats
    push();
    fill(this.R, this.G, this.B, 80);
    translate(this.x, height-this.y);
    scale(1,-1)
    rect(0, -bHeight/2, this.breadth, bHeight);
    triangle(-30, -bHeight/2, 0, -bHeight/2, 0, 0);
    triangle(this.breadth+30, -bHeight/2, this.breadth, -bHeight/2, this.breadth, 0)
    stroke(200); 
    pop();
}


function makeBuilding(birthLocationX) {
    var bldg = {x: birthLocationX,
                cloudx: random(width),
                y: random(10,70),
                breadth: random(60,90),
                speed: random(2,3),
                cloudspeed: random(0.5,1),
                R: random(70,90),
                G: random(50,70),
                B: random(10,40),
                transparency: random(100,200),
                nFloors: round(random(1,1.5)),
                move: buildingMove,
                display: buildingDisplay
               }
    return bldg;
}





//Below: set of functions that generate the clouds
function updateAndDisplayClouds(){
    for (var i = 0; i < clouds.length; i++){
        clouds[i].move();
        clouds[i].display();
    }
}


function removeCloudsThatHaveSlippedOutOfView(){
    var cloudsToKeep = [];
    for (var i = 0; i < clouds.length; i++){
        if (clouds[i].x + clouds[i].breadth +30 > 0) {
            cloudsToKeep.push(clouds[i]);
        }
    }
    clouds = cloudsToKeep;
}


function addNewCloudsWithSomeRandomProbability() {
    // With a very tiny probability, add a new building to the end.
    var newCloudLikelihood = 0.02; 
    if (random(0,1) < newCloudLikelihood) {
        clouds.push(makeCloud(width));
    }
}



function cloudMove() {
    this.x -= this.speed;
}
    


function cloudDisplay() { 
    push();
    fill(255, this.transparency);
    translate(this.x+50, 100 + this.y);
    ellipse(0, 0, this.y, this.y*0.5);
    pop();
}


function makeCloud(birthLocationX) {
    var cloud = {x: birthLocationX,
                y: random(10,70),
                breadth: random(60,90),
                speed: random(0.5,1),
                transparency: random(100,200),
                move: cloudMove,
                display: cloudDisplay
               }
    return cloud;
}




function makeballs() {
    var ix = constrain(floor(this.xx), 0, width-1);
    var iy = constrain(floor(this.yy), 0, height-1);
    
    fill(250, 254, 149) 
    noStroke();
    rect(this.x, this.y, this.ballsize, this.ballsize*1.5); // Draws the ellipse at (x,y) with the width and the height dimension of 'ballsize' which is a random number between 2 and 8
}



function ballspeed() {
    this.y += this.dy; // MouseY will be later assigned as 'y'
}



function drawPortrait(placeholderx, placeholdery, placeholderdy) {
    p = {x: placeholderx, 
         y: placeholdery,
         dy: placeholderdy,
         speedy: ballspeed,
         balls: makeballs,
         ballsize : random(4,10)
        }
    return p;
}


// Lanterns generated when the mouse is moved
function mouseMoved() {
        var newball = drawPortrait(mouseX, mouseY, random(-20, 20));
        balls.push(newball);
        x += random(x-3, x+3);
}

I wanted to recreate a scenic setting from my favorite Disney movie – Tangled!!!! There are total five components of the landscape, which are the moving clouds, the hill, the shadow of the hill, the lanterns, and the moving boats. There’s a little surprise hidden in this code; you could perhaps try moving your mouse to find out what it is!

Initially I wanted to make Rapunzel and Flynn Rider to randomly pop up on one of the boats but I had some difficulty coding it. It was a little annoying that I had to make multiple sets of the functions for different objects, but at the end it was rewarding because I got to recreate my favorite Disney movie.

Also I’d like to use one of my grace days for this project. Thank you!