Author: Bob Ross

// variables for images
var bear; 
var home; 
var factory;
var fire;
var bottle;

//variable for bear & obstacles
var bearx = 90;
var beary = 550;
var fires = [];
var factories = [];
var bottles = [];

// variables for background color
var colorR = 255;
var colorG = 253;
var colorB = 240;
var stepR;
var stepG;
var stepB;

// variable for timer
var timer = 60;

// variable for lives
var lives = 60; 

// variables for winning
var victory = false;
var angle = 0;

function preload() {
    bear = loadImage("https://i.imgur.com/P6jBMLN.png");
    home = loadImage("https://i.imgur.com/GZBJAQt.png");
    factory = loadImage("https://i.imgur.com/8uJDtMZ.png");
    fire = loadImage("https://i.imgur.com/P8Og7bN.png");
    bottle = loadImage("https://i.imgur.com/Q3Qch7G.png");
}

function setup() {
    createCanvas(500, 600);
    imageMode(CENTER);
    home.resize(170, 0);
    bear.resize(100, 0);
    fire.resize(60, 0);
    factory.resize(60, 0);
    bottle.resize(60, 0);
    // get dimensions of images
    print("fire width" + " " + fire.width);
    print("fire height" + " " + fire.height); 
    print("bear width" + " " + bear.width);
    print("bear height" + " " + bear.height);
    print("factory width" + " " + factory.width);
    print("factory height" + " " + factory.height); 
    print("bottle width" + " " + bottle.width);
    print("bottle height" + " " + bottle.height); 
    
    // make obstacles 
    for (var i = 0; i < 3; i ++) {
        var startposition = random(0, width/5)*5;
        var startspeed = random(0, 3);
        fires.push(makeFire(startposition, 0, startspeed));
    }

    for (var i = 0; i < 3; i ++) {
        var startposition = random(0, width/5)*5;
        var startspeed = random(0, 3);
        factories.push(makeFactory(startposition, 0, startspeed));   
    }

    for (var i = 0; i < 3; i ++) {
        var startposition = random(0, width/5)*5;
        var startspeed = random(0, 3);
        bottles.push(makeBottle(startposition, 0, startspeed));   
    }
}

function draw() {
    background(colorR, colorG, colorB); // initial cream color

    // game over melted ice will be blue => (177, 224, 230)
    stepR = (255 - 177) / 60;
    stepG = (253 - 224) / 60;
    stepB = (240 - 230) / 60;

    // timer 
    textSize(20);
    textAlign(CENTER);
    text("Timer: " + timer, 430, 580);
    text("Lives: " + lives, 330, 580);
        
    if (frameCount % 60 == 0 & timer > 0) {
        timer -= 1; // counts down 
    } 
    if (timer == 0) { // if times run out, game ends
        gameover();
    }

    image(home, width/2, 70); 
    image(bear, bearx, beary);

    // controlling bear's position through arrow keys 
    if (keyIsPressed & victory == false) {
        if (keyCode === LEFT_ARROW && bearx >= 50) {
            bearx -= 2;
        }
        if (keyCode === RIGHT_ARROW & bearx <= width - 50) {
            bearx += 2;
        }
        if (keyCode === UP_ARROW & beary >= 28.5) {
            beary -= 2;
        }
        if (keyCode === DOWN_ARROW & beary <= height - 28.5) {
            beary += 2;
        }
    }
    
    if (bearx >= width/2 - 20 & bearx <= width/2 + 20 && beary >= 50 && beary <= 90) { // if bear reaches home
        win();
    }

    obstacles(fires, 44);
    obstacles(factories, 35);
    obstacles(bottles, 26.5);
}

// function to show & update obstacles + interaction 
function obstacles(array, size) {
    for (var i = 0; i < array.length; i++) {
        array[i].show();
        array[i].update();
        if ((bearx >= array[i].x - 80 & bearx <= array[i].x + 80) && (beary >= array[i].y - size && beary <= array[i].y + size)) {
            if (colorR >= 177 || colorG >= 224 || colorB >= 230) {
                colorR -= stepR;
                colorG -= stepG;
                colorB -= stepB;
                lives -= 1;
            } else {
                gameover(); break;
            }
        } 
    }
}


// fire object
function makeFire(fx, fy, fspeed) {
    var fireobject = {x: fx, y: fy, speed: fspeed, show: fireShow, update: fireUpdate};
    return fireobject;
}

function fireShow() {
    image(fire, this.x, this.y);
}

function fireUpdate() {
    this.y += this.speed;
    if (this.y - 44 >= height) {
        this.y = -44;
    }
}

// factory object 
function makeFactory(facx, facy, facspeed) {
    var factoryobject = {x: facx, y: facy, speed: facspeed, show: factoryShow, update: factoryUpdate};
    return factoryobject;
}

function factoryShow() {
    image(factory, this.x, this.y);
}

function factoryUpdate() {
    this.y += this.speed;
    if (this.y - 35 >= height) {
        this.y = -35;
    }
}

// bottle object
function makeBottle(bx, by, bspeed) {
    var bottleobject = {x: bx, y: by, speed: bspeed, show: bottleShow, update: bottleUpdate};
    return bottleobject;
}

function bottleShow() {
    image(bottle, this.x, this.y);
}

function bottleUpdate() {
    this.y += this.speed;
    if (this.y - 26.5 >= height) {
        this.y = -26.5;
    }
}

// game over function
function gameover() {
    background(212, 36, 17); // red background if game over
    textSize(45);
    text("GAME OVER!", width/2, height/2);
    //stopping everything else
    fires = [];
    factories = [];
    bottles = [];
    victory = true;
    noLoop();
}

// you win function 
function win() {
    background(149, 217, 143); // green background if win
    textSize(45);
    text("YOU WIN!", width/2, height/2);
    // rotating the bear if win
    push();
    translate(width/2, 200);
    rotate(radians(angle));
    imageMode(CENTER);
    image(bear, 0, 0);
    pop();
    angle += 5;
    //stopping everything else
    fires = [];
    factories = [];
    bottles = [];
    victory = true;
}