//Amalia Kutin
//15-104 B
var bergSize;
var polar;
var pieces = [];
var afterNoon;
var skyColor;
var clouds = [];
var skyOrb;
var skyOrbColor;


function setup() {
    createCanvas(500, 500);
    background(158, 198, 255);
    bergSize = 400;
    skyColor = 125;
    skyOrb = 0;
    skyOrbColor = false;
    noStroke();
    polar = {x: 250, y: 350, dx: 0};
    for(let i = 0; i < 10; i++) clouds[i] = {x: random()*500, y: random()*180};
}

function draw() {
    background(158, 198, 255);
    fill(61, 120, 204);
    rect(0, 200, 500, 300);
    fill(143, 185, 191);
    beginShape();
    vertex(250-(bergSize/2), 350);
    vertex(250-(bergSize/4), 350-(bergSize/4));
    vertex(250+(bergSize/4), 350-(bergSize/4));
    vertex(250+(bergSize/2), 350);
    vertex(250+(bergSize/4), 350+(bergSize/4));
    vertex(250-(bergSize/4), 350+(bergSize/4));
    endShape(CLOSE);
    for(let i = 0; i < pieces.length; i++) drawIce(pieces[i]);
    drawSky();
    for(let i = 0; i < clouds.length; i++) drawClouds(clouds[i]);
    drawBear(polar);
}

function drawBear(b) {
    fill(255);
    beginShape();
    vertex(b.x-20, b.y-20);
    vertex(b.x+10, b.y-30);
    vertex(b.x+20, b.y-25);
    vertex(b.x+15, b.y-10);
    vertex(b.x+20, b.y+10);
    vertex(b.x+10, b.y+10);
    vertex(b.x, b.y);
    vertex(b.x-10, b.y+5);
    vertex(b.x-10, b.y+10);
    vertex(b.x-20, b.y+10);
    vertex(b.x-30, b.y+5);
    vertex(b.x-35, b.y-5);
    endShape(CLOSE);
    fill(156, 96, 114);
    circle(b.x+20, b.y-25, 5);
    fill(0);
    circle(b.x+10, b.y-22, 5);
    circle(b.x+13, b.y-27, 5);
    b.x += random()*6 - 3;
    b.y += random()*6 - 3;
    if(b.x < 260-bergSize/2) b.x += 10;
    if(b.x > 240+bergSize/2) b.x -= 10;
    if(b.y < 360-bergSize/4) b.y += 10;
    if(b.y > 340+bergSize/4) b.y -= 10;
}

function drawIce(i) {
    fill(143, 185, 191);
    beginShape();
    vertex(i.x-(i.s/2), i.y);
    vertex(i.x-(i.s/4), i.y-(i.s/4));
    vertex(i.x+(i.s/4), i.y-(i.s/4));
    vertex(i.x+(i.s/2), i.y);
    vertex(i.x+(i.s/4), i.y+(i.s/4));
    vertex(i.x-(i.s/4), i.y+(i.s/4));
    endShape(CLOSE);
    if(i.c % 8 < 2) i.x++;
    else if(i.c % 8 < 4) i.y++;
    else if(i.c % 8 < 6) i.x--;
    else i.y--;
    i.c++;
}

function drawSky() {
    if(afterNoon) skyColor-=0.25;
    else skyColor+=0.25;
    fill(skyColor, skyColor, 120+skyColor/2);
    rect(0, 0, 500, 200);
    if(skyColor == 200) afterNoon = true;
    if(skyColor == 50) afterNoon = false;
    if (skyOrbColor) fill(219, 252, 255);
    else fill(235, 196, 68);
    circle(skyOrb, 100, 60);
    skyOrb+=(0.25*500/150);
    if (skyOrb > 500) {
        skyOrb = 0;
        if (skyOrbColor) skyOrbColor = false;
        else skyOrbColor = true;
    }
}

function drawClouds(c) {
    fill(255);
    ellipse(c.x%500, c.y, 50, 30);
    c.x++;
}

function mousePressed() {
    if(bergSize > 150) bergSize -= 10;
    var newPiece;
    for(let i = 0; i < 20; i++) newPiece = {x: random()*500, y: 200+random()*300, s: random()*60, c: 0};
    pieces[pieces.length] = newPiece;
}