var Platform = function(x, y) {
    this.width = 40;
    this.height = 10;
    
    if(x && y) {
        this.x = x;
        this.y = y;
    } else {
        this.x = random(0, width - this.width);
        this.y = -random(10, 80);
    }
    
    this.draw = function() {
        rect(this.x, this.y, this.width, this.height);
    };
};

var Player = function() {
    this.x = width/2;
    this.y = height/2;
    this.dx = 0;
    this.dy = 0;
    this.gravity = 0.5;
    this.maxdx = 40;
    
    this.player_width = 20;
    this.player_height = 20;
    
    this.move = function() {
        this.dx = constrain((mouseX - this.x)/5, -this.maxdx, this.maxdx);
        this.dy += this.gravity;
        
        this.x += this.dx;
        this.y += this.dy;
        
        // if all of player left or right of edge, flip sides
        var leftEdge = -this.player_width/2;
        var rightEdge = width + this.player_width/2;
        if(this.x < leftEdge) {
            this.x = rightEdge - (leftEdge - this.x);
        }
        else if(this.x > rightEdge) {
            this.x = leftEdge + (this.x - rightEdge);
        }
    };
    
    this.draw = function() {
        ellipse(this.x, this.y, this.player_width, this.player_height);
    };
};

var Game = function() {
    this.scroll = 0;
    this.platforms = [];
    this.mobs = [];
    this.projectiles = [];
    this.player = new Player();
    
    platforms.push(new Platform(width/2, 300
    
    this.update = function() {
        this.player.move();
        
        for(var i = this.platforms.length-1; i >= 0; i--) {
            
        }
    };
    
    this.draw = function() {
        this.player.draw();
        
        for(var i = 0; i < this.platforms.length; i++) {
            this.platforms[i].draw();
        }
    };
};

var game = new Game();

var draw = function() {
    game.update();
    
    game.draw();
};