Project 11 – Airplane and parachute

/* Jiayi Chen
   jiayiche    Section A */
//arrays for display
var birds=[];
var clouds=[];
var flyObject =[];

//array for image storage
var birdsImg=[];
var cloudsImg=[];
var flyObjectImg =[];
//array for links
var cloudLinks = [
    "https://i.imgur.com/suIXMup.png",
    "https://i.imgur.com/7ZHCI63.png",
    "https://i.imgur.com/EFb0w3u.png",
    "https://i.imgur.com/PxLKy41.png"];

var birdLinks = [
    "https://i.imgur.com/Gr1VTU5.png",
    "https://i.imgur.com/EmRp42l.png",
    "https://i.imgur.com/vLWSU4h.png",
    "https://i.imgur.com/Y9BecjA.png"];

var flyObjectLink = [
    "https://i.imgur.com/IXz53Lj.png",
    'https://i.imgur.com/UsKzDwg.png'];

//load the images
function preload(){
    airplane = loadImage("https://i.imgur.com/bEPeF8a.png");
    for (var i = 0; i < cloudLinks.length; i++){
        cloudsImg[i] = loadImage(cloudLinks[i]);
    }
    for (var i = 0; i < birdLinks.length; i++){
        birdsImg[i] = loadImage(birdLinks[i]);
    }
    for (var i = 0; i < flyObjectLink.length; i++){
        flyObjectImg[i] = loadImage(flyObjectLink[i]);
    }
}

function setup() {
    createCanvas(480, 480);
    imageMode(CENTER);
    //initial clouds 
    for (var i = 0; i < 3; i++){
        var rc = floor(random(cloudsImg.length));
        clouds[i] = makeCloud(random(width),random(100,300),random(height),cloudsImg[rc]);
    }
    frameRate(10);
}

function draw() {
    background(135,206,235);
    sun()
    updateAndDisplayClouds();
    addNewobjectsWithSomeRandomProbability();
    removeObjectsThatHaveSlippedOutOfView();
    image(airplane,200,constrain(250+random(-5,5),240,260),200,200);
}

function sun(){
    push();
    fill('orange');
    circle(60,60,50);
    fill('red');
    circle(60,60,40);

}
function updateAndDisplayClouds(){
    // Update the clouds's positions, and display them.
    for (var i = 0; i < clouds.length; i++){
        clouds[i].move();
        clouds[i].display();
    }
    // Update the birds's positions, and display them.
    for (var i = 0; i < birds.length; i++){
        birds[i].move();
        birds[i].display();
    }
    // Update the flyThings's positions, and display them.
    for (var i = 0; i < flyObject.length; i++){
        flyObject[i].move();
        flyObject[i].display();
    }
}

//remove out of sight things
function removeObjectsThatHaveSlippedOutOfView(){
    //remove out of sight clouds
    var cloudsToKeep = [];
    for (var i = 0; i < clouds.length; i++){
        if (clouds[i].x + clouds[i].size/2 > 0) {
            cloudsToKeep.push(clouds[i]);
        }
    }
    clouds = cloudsToKeep; // remember the surviving clouds

    //remove out of sight birds
    var birdsToKeep = [];
    for (var i = 0; i < birds.length; i++){
        if (birds[i].x + birds[i].size/2 > 0){
            birdsToKeep.push(birds[i]);
        }
    }
    birds = birdsToKeep; // remember the surviving birds

    //remove out of sight fly things
    var FlyesToKeep = [];
    for (var i = 0; i < flyObject.length; i++){
        if (flyObject[i].x + flyObject[i].size/2 > 0) {
             FlyesToKeep.push(flyObject[i]);
        }
    }
    flyObject = FlyesToKeep; // remember the surviving fly things
}


function addNewobjectsWithSomeRandomProbability() {
    // With a low probability, add a new clouds to the end.
    var newCloudLikelihood = 0.02; 
    if (random(0,1) < newCloudLikelihood) {
        var rc = floor(random(cloudsImg.length));
        clouds.push(makeCloud(width+75,random(100,150),random(height),cloudsImg[rc]));
    }
    // With a low probability, add a new birds to the end.
    var newbirdLikelihood = 0.03; 
    if (random(0,1) < newbirdLikelihood) {
        var rc = floor(random(birdsImg.length));
        clouds.push(makeBirds(width+30,random(30,60),random(height),floor(random(birdsImg.length))));
    }
    // With a low probability, add a new flying things to the end.
    var newObejctLikelihood = 0.01; 
    if (random(0,1) < newObejctLikelihood) {
        var rc = floor(random(flyObjectImg.length));
        clouds.push(makeFly(width+50,random(50,100),random(0,240),flyObjectImg[rc]));
    }
}

//make clouds as objects
function makeCloud(birthLocationX,cs,ch,cloudCartoon) {
    var cldg = {x: birthLocationX,
                size: cs,
                y:ch,
                speed: -1.0,
                cartoon:cloudCartoon,
                move: cloudMove,
                display: cloudDisplay}
    return cldg;
}

function cloudMove() {//move clouds
    this.x += this.speed;
}

function cloudDisplay(){
    image(this.cartoon, this.x, this.y,this.size, this.size); 
}

//make birds as objects
function makeBirds(birthLocationX,cs,ch,birdCartoon) {
    var mb = {x: birthLocationX,
                size: cs,
                y:ch,
                speed: -3.0,
                cartoonNumber:birdCartoon,
                move: birdsMove,
                display: birdsDisplay}
    return mb;
}

function birdsMove() {
    if(this.cartoonNumber == 0 || this.cartoonNumber == 1){
        this.x += this.speed/2;    //birds facing to the left are flying slower
        this.y += random(-3,3);    //randomly fly
    }else{
        this.x += this.speed;
        this.y += random(-5,5);    //randomly fly
    }

}

function birdsDisplay(){
    image(birdsImg[this.cartoonNumber], this.x, this.y,this.size, this.size); 
}

//make other flying things as objects
function makeFly(birthLocationX,cs,ch,flyCartoon) {
    var mf = {x: birthLocationX,
                size: cs,
                y:ch,
                speed: -2.0,
                cartoon:flyCartoon,
                move: flyMove,
                display: flyDisplay}
    return mf;
}

function flyMove() {//move flying objects
    this.x += this.speed;
    //gravity for things without wings
    this.y -=this.speed/4;
}

function flyDisplay(){
    image(this.cartoon, this.x, this.y,this.size, this.size); 
}