Sarah Choi – Project 11 – Landscape

project-11

//Sarah Choi
//sychoi
//Section D
//Project-11

var buildings = [];
var birds = [];
var terrainSpeed = 0.0001;
var terrainDetail = 0.005;


function setup() {
    createCanvas(480, 480); 
    frameRate(10);
    
    for (var i = 0; i < 10; i++){
        var rx = random(width);
        var ry = random(height);
        buildings[i] = makeBuilding(rx);
        birds[i] = birdsFlying(rx, ry);
    }
}


function draw() {
    background(200); 
    
    displayHorizon();

    drawMountain();
    
    updateAndDisplayBuildings();
    removeBuildingsThatHaveSlippedOutOfView();
    addNewBuildingsWithSomeRandomProbability(); 

    birdsFlying();
    birdMovement();
    displayBird();
    updateBird();
    addBird();
    removeBird();
}

function drawMountain() {
    fill(150, 60, 50);
    noStroke();
    beginShape();
    for (x = 0; x < width; x++) {
        var m = (x * terrainDetail) + (millis() * terrainSpeed);
        var y = map(noise(t), 0, 1, 0, height);
        vertex(x, y);
    }
    vertex(width, height);
    vertex(0, height);
    endShape();
}

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 > 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 = 0.007; 
    if (random(0,1) < newBuildingLikelihood) {
        buildings.push(makeBuilding(width));
    }
}


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

// draw the building and some windows
function buildingDisplay() {
    var floorHeight = 20;
    var bHeight = this.nFloors * floorHeight; 
    fill(255); 
    stroke(0); 
    push();
    translate(this.x, height - 40);
    rect(0, -bHeight, this.breadth, bHeight);
    stroke(200); 
    for (var i = 0; i < this.nFloors; i++) {
        rect(5, -15 - (i * floorHeight), this.breadth - 10, 10);
    }
    pop();
}


function makeBuilding(birthLocationX) {
    var bldg = {x: birthLocationX,
                breadth: 50,
                speed: -1.0,
                nFloors: round(random(2,8)),
                move: buildingMove,
                display: buildingDisplay}
    return bldg;
}


function displayHorizon(){
    stroke(0);
    line (0, height - 50, width, height - 50); 
}

function birdsFlying(birdX, birdY) {
    var bird = {x: birdX,
                y: birdY,
                speed: random(5, 20),
                size: random(5, 20),
                color: random(0, 100),
                move: birdMovement,
                display: displayBird}
    return bird;
}

function birdMovement() {
    this.x += this.speed;
    this.y += this.speed / 5;
}

function displayBird() {
    strokeWeight(1);
    stroke(this.color);
    noFill();
    push();
    translate(this.x, this.y);
    arc(0, 0, this.size, this.size, PI + QUARTER_PI, 0);
    arc(this.size, 0, this.size, this.size, PI, - QUARTER_PI);
    pop();
}

function updateBird() {
    for (i = 0; i < birds.length; i++) {
        birds[i].move();
        birds[i].display();
    }
}

function addBird() {
    var newBird = random(1);
    if (newBird < 0.2) {
        var birdX = 0;
        var birdY = random(height);
        birds.push(displayBird(birdX, birdY));
    }
}

function removeBird() {
    var stayBird = [];
    for (i = 0; i < birds.length; i++) {
        if (birds[i].x + birds[i].size > 0) {
            stayBird.push(birds[i]);
        }
    }
    birds = stayBird;
}

I wanted to show birds with the buildings in the background. Growing up in a city, there were always tall skyscrapers and birds flying everywhere especially next to really big parks. I love walking around in the city where you can breathe in the fresh air and feel so free in an area where you grew up.

I was unable to figure out how to make both the birds and the buildings to appear in my code. Although in the end, I was still unsure how to make my code work, I hope the code is enough to show my efforts.