<script>
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								window.addEventListener("keydown", function(e)
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								{
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								    // space and arrow keys
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								    if([32, 37, 38, 39, 40].indexOf(e.keyCode) > -1)
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								    {
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								        e.preventDefault();
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								    }
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								}, false);
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								window.onload = function()
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								{
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								    var canvas = document.getElementById("canvasZP");
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								    var c = canvas.getContext('2d');
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								    c.fillStyle= "black";
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								    c.fillRect(0,0,canvas.width,canvas.height);
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								};
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								function playZP()
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								{
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								    var animate = window.requestAnimationFrame ||
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								        window.webkitRequestAnimationFrame ||
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								        window.mozRequestAnimationFrame || function (callback)
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								    {
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								        window.setTimeout(callback, 1000 / 60)
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								    };
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								    var canvas = document.getElementById("canvasZP");
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								    var width = 700;
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								    var height = 700;
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								    canvas.style.textAlign = 'center';
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								    var context = canvas.getContext('2d');
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								    var keysDown = {};
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								    var score = 0;
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								    var dead = false;
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								    //player
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								    var Player = function(x,y)
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								    {
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								        this.x = x;
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								        this.y = y;
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								        this.width = 25;
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								        this.height = 25;
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								        this.speed = 3;
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								        this.facing = 40;
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								        this.updateDirection = function(key)
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								        {
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								            facing = key;
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								        }
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								        this.render = function()
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								        {
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								            context.fillStyle = "rgba(0, 45, 160, 1)"; //green
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								            context.fillRect(this.x, this.y, this.width,this.height);
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								        }
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								        this.move = function()
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								        {
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								            for (var key in keysDown)
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								            {
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								                var value = Number(key);
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								                if (value == 37) //left
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								                {
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								                    this.x = this.x - this.speed;
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								                }
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								                else if (value == 39) //right
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								                {
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								                    this.x = this.x + this.speed
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								                }
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								                else if(value == 38) //up
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								                {
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								                    this.y = this.y - this.speed
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								                }
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								                else if(value == 40) //down
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								                {
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								                    this.y = this.y + this.speed
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								                }
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								                else if(value == 32)
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								                {
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								                    var added = false;
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								                    for(i = 0; i< bullets.length; i++)
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								                    {
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								                        if(bullets[i] == -1)
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								                        {
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								                           bullets[i] = new Bullet();
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								                           added = true;
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								                           break;
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								                        }
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								                    }
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								                    if(added == false)
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								                        bullets.push(new Bullet());
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								                }
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								            }
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								        }
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								    }
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								    var p = new Player(350, 350);
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								    //bullet
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								    var Bullet = function()
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								    {
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								        this.x = p.x;
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								        this.y = p.y;
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								        this.width = 10;
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								        this.height = 10;
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								        this.speed = 4;
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								        this.facing = p.facing;
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								        this.move = function()
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								        {
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								            if (this.facing == 37) //left
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								                this.x = this.x - this.speed;
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								            else if (this.facing == 39) //right
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								                this.x = this.x + this.speed
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								            else if(this.facing == 38) //up
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								                this.y = this.y - this.speed
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								            else if(this.facing == 40) //down
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								                this.y = this.y + this.speed
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								        }
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								        this.render = function()
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								        {
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								            context.fillStyle = "rgba(255, 0, 199, 1)"; //green
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								            context.fillRect(this.x, this.y, this.width,this.height);
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								        }
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								    }
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								    var bullets = [];
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								    function getRandomIntInclusive(min, max) {
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								      min = Math.ceil(min);
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								      max = Math.floor(max);
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								      return Math.floor(Math.random() * (max - min + 1)) + min;
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								    }
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								    //zombie
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								    var Zombie = function(x,y)
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								    {
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								        this.x = x;
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								        this.y = y;
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								        this.width = 25;
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								        this.height = 25;
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								        this.speed = 3;
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								        var side = getRandomIntInclusive(0,3);
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								        var mid = getRandomIntInclusive(0,700);
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								        if(side === 1)
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								        {
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								            this.x = mid;
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								            this.y = 0;
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								        }
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								        else if(side === 2)
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								        {
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								            this.x = 700;
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								            this.y = mid;
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								        }
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								        else if(side === 3)
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								        {
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								            this.y = 700;
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								            this.x = mid;
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								        }
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								        else
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								        {
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								            this.x = 0;
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								            this.y = mid;
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								        }
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								        this.render = function()
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								        {
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								            context.fillStyle = "rgba(0, 160, 0, 1)"; //green
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								            context.fillRect(this.x, this.y, this.width,this.height);
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								        }
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								        this.move = function()
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								        {
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								            if(this.x  > p.x + this.speed)
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								                this.x -= this.speed;
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								            else if(this.x + this.speed < p.x )
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								                this.x += this.speed;
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								            if(this.y > p.y + this.speed)
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								                this.y -= this.speed;
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								            else if(this.y + this.speed < p.y )
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								                this.y += this.speed;
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								        }
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								    }
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								    var zombies = [];
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								    zombies.push(new Zombie());
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								    var render = function()
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								    {
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								        context.fillStyle = "#000000";
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								        context.fillRect(0, 0, width, height);
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								        context.fillStyle = "rgba(255, 255, 255, 1)";
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								        context.font= "20px Georgia";
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								        context.fillText("Score: " + score,10,25);
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								        for(i = 0; i< zombies.length; i++)
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								        {
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								            if(zombies[i] != -1)
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								            {
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								                zombies[i].render();
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								            }
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								        }
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								        for(i = 0; i< bullets.length; i++)
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								        {
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								            if(bullets[i] != -1)
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								            {
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								               bullets[i].render();
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								            }
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								        }
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								        p.render();
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								    }
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								    var update = function()
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								    {
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								        addZombie();
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								        p.move();
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								        for(i = 0; i< zombies.length; i++)
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								        {
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								            for(z = 0;z < bullets.length; z++)
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								            {
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								                if(zombies[i] != -1 && bullets[z] != -1)
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								                {
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								                    if(Math.abs(zombies[i].x - bullets[z].x) < 25 &&
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								                        Math.abs(zombies[i].y - bullets[z].y) < 25)
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								                    {
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								                        score++;
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								                        zombies[i] = -1;
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								                        bullets[z] = -1;
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								                    }
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								                }
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								            }
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								            if(zombies[i] != -1)
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								            {
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								               zombies[i].move();
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								            }
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								        }
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								        for(i = 0; i< bullets.length; i++)
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								        {
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								            //checks to see if goes out of bounds
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								            if(bullets[i].x < 0 || bullets[i].y < 0 ||
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								                bullets[i].x > 700 || bullets[i].y > 700)
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								            {
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								                bullets[i] = -1;
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								            }
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								            if(bullets[i] != -1)
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								            {
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								               bullets[i].move();
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								            }
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								        }
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								        for(i=0; i<zombies.length; i++)
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								        {
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								            if(zombies[i] != -1 &&
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								                Math.abs(p.x - zombies[i].x) < 25 &&
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								                Math.abs(p.y - zombies[i].y) < 25)
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								            {
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								                dead = true;
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								            }
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								        }
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								    }
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								    var counter2 = 0;
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								    var counter = 0;
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								    var rate = 180;
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								    var addZombie = function()
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								    {
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								        counter2++;
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								        counter++;
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								        var added = false;
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								        if(counter >= rate)
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								        {
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								            for(i = 0; i< zombies.length; i++)
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								            {
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								                if(zombies[i] == -1)
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								                {
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								                   zombies[i] = new Zombie();
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								                   added = true;
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								                   break;
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								                }
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								            }
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								            if(added == false)
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								            {
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								                zombies.push(new Zombie());
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								            }
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								            counter = 0;
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								        }
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								        if(counter2 >= 60)
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								        {
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								            if(rate > 30)
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								            {
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								                rate = rate -5;
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								            }
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								            counter2 = 0;
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								        }
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								    }
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								    var sent = false;
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								    var tic = function()
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								    {
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								        if(dead)
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								        {
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								            context.fillStyle = "#000000";
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								            context.fillRect(0, 0, width, height);
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								            context.fillStyle = "rgba(255, 255, 255, 1)"; //green
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								            context.font= "20px Georgia";
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								            context.fillText("You died with a score of " + score,200,340);
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						|
								
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								            if(!sent)
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								            {
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								                document.body.innerHTML += '<form id="dynForm" ' +
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								                    'action="insertScore.php" method="post">' +
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								                    '<input type="hidden" name="game_new_score" ' +
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								                    'value=true><input type="hidden" name="game" value=2>' +
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								                    '<input type="hidden" name="user_id_score" value=' +
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								                    '<?php echo $_SESSION['user_id']; ?>><input ' +
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								            'type="hidden" name="score_validate" value=' + score + '>' +
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								            '</form>';
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								                document.getElementById("dynForm").submit();
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								                sent = !sent;
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								            }
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								        }
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								        else
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								        {
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								            update();
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								            render()
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								        }
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						|
								
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								        animate(tic);
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								    }
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						|
								
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								    window.addEventListener("keydown", function (event)
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								    {
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								        if(event.keyCode >=37 && event.keyCode <=40)
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								        {
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								            p.facing = event.keyCode;
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								        }
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						|
								
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								        keysDown[event.keyCode] = true;
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						|
								    });
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						|
								
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						|
								    window.addEventListener("keyup", function (event)
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								    {
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						|
								        delete keysDown[event.keyCode];
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								    });
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								    animate(tic);
							 | 
						|
								
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								}
							 | 
						|
								
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								</script>
							 | 
						|
								
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						|
								<div><canvas id="canvasZP" width="700" height="700"></canvas></div>
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						|
								<div><input type="submit" name="play" value="Play Game" onclick="
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						|
								this.blur();playZP()"/></div>
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