var hpp = 10;
var health = 100;
var agip = 10;
var strp = 10;
var regenp = 5;
var pointsp = 5;
var hcheck = hpp * hpp;

function load()
{
	document.getElementById("hpp").innerHTML = hcheck;
	document.getElementById("hcheck").innerHTML = hcheck;
	document.getElementById("hmath").innerHTML = "(" + hpp + "x" + hpp + ")";
	document.getElementById("agip").innerHTML = agip;
	document.getElementById("strp").innerHTML = strp;
	document.getElementById("regenp").innerHTML = regenp;
	document.getElementById("pointsp").innerHTML = pointsp;
	var name = prompt("Hvad er dit navn?", "Name");
	document.getElementById("name").innerHTML = name;
}

function start()
{
	if (pointsp == 0)
	{
		gametick();
		spawntick();
		upgrade_option_delete();
	}
	else
	{
		alert("Du skal bruge alle dine Ability Points")
	}
}

function gametick()
{
	setInterval(function(){
		if (health < hcheck)
		{
			health += regenp;
			document.getElementById("hpp").innerHTML = health;
			if (health > hcheck)
			{
				document.getElementById("hpp").innerHTML = hcheck;
			}
		}
	}, 2500);
}

function spawntick()
{
	setInterval(function(){
		var eRandom = (Math.floor((Math.random()*5)+2));
		document.getElementById("enemy").innerHTML += "<div class='enemy'>" + "<a>Enemy</a><br/>" + "<a id='ehp'>HP: "+ eRandom +"</a><br/>" + "</div>";	
	}, 5000);
}

function upgrade_option_delete()
{
	document.getElementById("hpplus").remove();
	document.getElementById("hpminus").remove();
	document.getElementById("agiplus").remove();
	document.getElementById("agiminus").remove();
	document.getElementById("strplus").remove();
	document.getElementById("strminus").remove();
	document.getElementById("startbutton").remove();
}

function hpm()
{
	if (hpp > 10)
	{	
		hpp -= 1;
		document.getElementById("hcheck").innerHTML = hpp * hpp;
		document.getElementById("hmath").innerHTML = "(" + hpp + "x" + hpp + ")";
		app();
	}
}

function hpp2()
{
	if (pointsp > 0)
	{	
		hpp += 1;
		document.getElementById("hcheck").innerHTML = hpp * hpp;
		document.getElementById("hmath").innerHTML = "(" + hpp + "x" + hpp + ")";
		apm();
	}
}

function agim()
{
	if (agip > 10)
	{	
		agip -= 1;
		document.getElementById("agip").innerHTML = agip;
		app();
	}
}

function agip2()
{
	if (pointsp > 0)
	{	
		agip += 1;
		document.getElementById("agip").innerHTML = agip;
		apm();
	}
}

function strm()
{
	if (strp > 10)
	{	
		strp -= 1;
		regenp -= 0.5;
		document.getElementById("strp").innerHTML = strp;
		document.getElementById("regenp").innerHTML = regenp;
		app();
	}
}

function strp2()
{
	if (pointsp > 0)
	{	
		strp += 1;
		regenp += 0.5;
		document.getElementById("strp").innerHTML = strp;
		document.getElementById("regenp").innerHTML = regenp;
		apm();
	}
}

function apm()
{
	pointsp -= 1;
	document.getElementById("pointsp").innerHTML = pointsp;
}

function app()
{
	pointsp += 1;
	document.getElementById("pointsp").innerHTML = pointsp;
}