thing.js

var keys = {};
keyPressed = function() {
    keys[keyCode] = true;
};
keyReleased = function() {
    delete keys[keyCode];
};
var Player = {
    w: 50,
    h: 50,
    x: width / 2 - 25,
    y: height - 50,
    alive: true,
    score: 0
};
Player.display = function() {
    fill(129, 255, 139);
    stroke(75);
    strokeWeight(3);
    rect(this.x, this.y, this.w, this.h);
};
Player.update = function() {
    if(keys[37]) {
        this.x -= 3;
    }
    if(keys[39]) {
        this.x += 3;
    }
    this.x = constrain(this.x, 0, width - this.w);
};
var Block = function() {
    this.w = 50;
    this.h = 50;
    this.x = random(0, width-50);
    this.y = -50;
    this.yvel = 0.01;
};
Block.prototype.display = function() {
    fill(0, 139, 255);
    stroke(75);
    strokeWeight(3);
    rect(this.x, this.y, this.w, this.h);
};
Block.prototype.update = function() {
    this.yvel += 0.01 + frameCount/1000;
    this.y += this.yvel;
    this.y++;
};
var blocks = [];
var collideWith = function(ply, obj) {
	return ply.x + ply.w > obj.x && ply.x < obj.x + obj.w && ply.y + ply.h > obj.y && ply.y < obj.y + obj.h;
};
textAlign(CENTER, CENTER);
var draw = function() {
    background(100);
    textFont(createFont('Arial Black'), 30);
    if(!Player.alive) {
        background(50);
        textSize(50);
        text('You Died!\nScore: ' + Player.score, width / 2, height / 2);
        noLoop();
        return;
    }
    Player.score++;
    if(frameCount % 50 - frameCount/1000 <= 0.5) {
        blocks.push(new Block());
    }
    Player.display();
    Player.update();
    blocks.forEach(function(block) {
        if(collideWith(Player, block)) {
            Player.alive = false;
        }
        block.display();
        block.update();
    });
    fill(139, 255, 0);
    text('Score: ' + Player.score, width / 2, 100);
};