JS1k: The JavaScript code golfing competition

_='a=documN;d=e=1;Xc=l=p=q=r=t=u=0;w?round;x?pow;b"<^Q{marg`:30px}#c,#d{text-align:cNer;posi:absolute}#d{ft:300px}6^<Q>6Q>";j; 9j8Xfor(i=l;0<=i;i--)m=m7<op Rue="~i7iK6op>""Co`scK@lvldKFlvle7%"g(1@(~d"g(2F(~eLvl: <_bmK6_> $"s$JBatt!%\'z\'>Save / Load"} 9g(k){1dd,dV2ee,eVW9n8
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a.getEmNById("<G onclick=$nfunc.`nerHTML=6G><divw(x(	JO/|$$|/ $$%(),2))6div>;b.children[1]
i").disabd=!: "+=w(h[7 co`s));)JUpgrade letionJ~ id="K|"+InterR(==kc>=Timeout(,1E3n}(c-=$\\%4")"HP6</7+\'8{9 ?=Math.@Sword FArmor GbuttonJ">K+"NentQpreRvalV++Wj}Xm="";Z,1.5)^sty>_sect`in~\'+&&';for(Y in $='~`_^ZXWVRQNKJGF@?98764%$	
')with(_.split($[Y]))_=join(pop());eval(_)

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

/*
		
		VARIABLES AND FUNCTIONS:
		a = document
		b = document.body (shim)
		c = coins
		d = sword level
		e = armor level
		f = timeout variable
		g() = upgrade
		h = inside function variable
		i = looping variable
		j() = update pre
		l = max level
		m = whatever
		n() = battle update
		o() = attack
		p = player hp
		q = enemy hp
		r = enemy max hp
		s() = initiate battle
		t = battle interval
		u = enemy dmg
		v() = button countdown
		w = f.round
		x = f.pow
		z() = load game
		
		IDs:
		a = <pre>
		b = quest level
		c = player ascii
		d = enemy ascii
		g = player hp number
		h = enemy hp number
		i = attack button
		
*/
	
a=document;
d=e=1;
m="";
c=l=p=q=r=t=u=0;
w=Math.round;
x=Math.pow;

b.innerHTML='<style>pre{margin:30px}#c,#d{text-align:center;position:absolute}#d{left:300px}</style><pre></pre>';

j();

function j(){
	m="";
	for(i=l;i>=0;i--)m=m+'<option value="'+i+'">'+i+'</option>';
	b.children[1].innerHTML='Coins: '+c+'\nSword lvl: '+d+'\nArmor lvl: '+e+'\n\n<button onclick="g(1)">Upgrade Sword ('+w(x(d,2))+' coins)</button>\n<button onclick="g(2)">Upgrade Armor ('+w(x(e,2))+' coins)</button>\n\nLvl: <select id="b">'+m+'</select> <button onclick="s()">Battle!</button>\n\n<button onclick=\'z()\'>Save / Load</button>'
}
function g(h){
	if(h==1){if(c>=w(x(d,2))){c-=w(x(d,2));d++;}}
	if(h==2){if(c>=w(x(e,2))){c-=w(x(e,2));e++;}}
	j()
}
function n(){
	a.getElementById("g").innerHTML="HP: "+p;
	a.getElementById("h").innerHTML="HP: "+q;
	if(q<1){c+=w(r/2);if(u==l){l++;}}
	if(q<1||p<1){clearInterval(t);clearTimeout(f);j()}
}
function o(){
	q-=w(x(d,1.5));a.getElementById("i").disabled=true;f=setTimeout(function(){a.getElementById("i").disabled=false},1000)
	n()
}
function s(){
	u=a.getElementById("b").value;
	r=q=w(x(u,1.5))+3;
	p=e*5;
	b.children[1].innerHTML='<div id="c">\nO\n/|\\\n|\n/ \\\n\nYou<div id="g">'+p+'</div></div><div id="d">\nO\n/|\\\n|\n/ \\\n\nDummy Bot<div id="h">'+q+'</div></div>\n\n\n\n\n\n\n\n\n<button onclick="o()" id="i">Attack!</button>';
	t=setInterval("p-=u;n()",1000);
	n()
}
function z(){
	h=atob(prompt("",btoa(c+"|"+d+"|"+e+"|"+l))).split("|");
	c=w(h[0]);
	d=w(h[1]);
	e=w(h[2]);
	l=w(h[3]);
	j()
}