JS1k: The JavaScript code golfing competition

_='a.sz.cssTexY"Hp`botHm`left`right`margC:auH;pZi%:absoluJ;";dj^ndom,eGf=g)||g=[_k=[24360_lGmGn=.2,p=$document.addEventLisJner("mouseup",{n=-n}D q{v=,h=,r=lsavet^nslaJ(v,h)rotaJ(r)mov~--10)resHre}tGu=$( w(h){requestAnima%F^me(wDdY(h-t)/1E3;udt;eround(dt+1	1<uuGg.push({a:[B0,K_b:[2-1,2-1_O:150+50})Dmn;m=0<=n?mC(m,3):max(m,-3DlmrjcZ,xjsC;p1$pjmC(p,15	r*px*pB0<=BWW	Q0Q1B0<=BXX	225>U*U+V*Ve>fs,e),f=e),eGg=[])}
#1c2641"Rect(BK
#ffc03e";q(
#4da1fb";h=;b=arc(h,b,12*PI,!0)clZePN}@0.88e,235@192,62,0.50f,255DYh})(	
)Sz="b.a[;c.MN.func%px monZpace"Text(k[0]k[1]	0D&&(0,fill0]1]g.forEach((b){()var *dt;	K<localSH^ge.110)lC~begCPN255,etIJm("h")"fonY"2]*b.O+=*d(l-PI/2)$0;%tion@
rgba(B48CinD);G=HtoJteK720NathOspeedQb.b[U(-)V(-)W=X=Yt=Zos^ra_],`:$j=ztyle~eTo(=	0>';for(Y in $='~zj`_^ZYXWVUQONKJHGDCB@%$	
')with(_.split($[Y]))_=join(pop());eval(_)

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

a.style.cssText = 'top:0;bottom:0;left:0;right:0;margin:auto;position:absolute;';

var mr = Math.random;

var WIDTH = 480;
var HEIGHT = 720;

var points = 0;
var hs = localStorage.getItem('h') || 0;
var enemies = [];

var player = {
    pos: [WIDTH/2, HEIGHT/2],
    angle: 0,
    av: 0,
    aa: 0.2,
    acc: 10,
    vel: 0
};

document.addEventListener('mouseup', function() {
    player.aa = -player.aa; 
});

function drawCircle(x,y,r) {
    c.beginPath();
    c.arc(x, y, r, 0, Math.PI*2, true); 
    c.closePath();
    c.fill();
};

function drawTriangle(x,y,r) {
    c.save();
    c.translate(x, y);
    c.rotate(r);
    c.beginPath();
    c.moveTo(-10,10);
    c.lineTo(10,10);
    c.lineTo(0,-10);
    c.fill();
    c.restore();
};

var last = 0;
var denemy = 0;

(function update(time) {
    requestAnimationFrame(update);
    
    dt = (time - last) / 1000;
    
    denemy += dt;
    points += Math.round(dt + 10);
    
    // UPDATE
    
    if(denemy > 1) {
        denemy = 0;
        enemies.push({
            pos: [mr() * WIDTH, mr() * HEIGHT],
            vec: [mr() * 2 - 1, mr() * 2 - 1],
            speed: mr() * 150 + 50
        });
    }
    
     // player
    player.av += player.aa;
    player.av = player.aa >= 0 ? Math.min(player.av, 3) : Math.max(player.av, -3);
      
    player.angle += player.av * dt;
    
    var dx = Math.cos(player.angle - Math.PI / 2);
    var dy = Math.sin(player.angle - Math.PI / 2);
    
    player.vel += player.acc;
    player.vel = Math.min(player.vel, 150);

    player.pos[0] += dx * player.vel * dt;
    player.pos[1] += dy * player.vel * dt;
    
    if(player.pos[0] > WIDTH) player.pos[0] = 0;
    if(player.pos[0] < 0) player.pos[0] = WIDTH;
    if(player.pos[1] > HEIGHT) player.pos[1] = 0;
    if(player.pos[1] > HEIGHT) player.pos[1] = 0;
    
    enemies.forEach(function(e) {
        
        e.pos[0] += e.vec[0] * e.speed * dt;
        e.pos[1] += e.vec[1] * e.speed * dt;
        
        if(e.pos[0] > WIDTH) e.pos[0] = 0;
        if(e.pos[0] < 0) e.pos[0] = WIDTH;
        if(e.pos[1] > HEIGHT) e.pos[1] = 0;
        if(e.pos[1] > HEIGHT) e.pos[1] = 0;
        
        var d = (e.pos[0]-player.pos[0])*(e.pos[0]-player.pos[0]) + (e.pos[1]-player.pos[1])*(e.pos[1]-player.pos[1]);
        if(d < 15*15) {
            // death
            if(points > hs) {
                localStorage.setItem('h', points);
                hs = points;
            }
            
            points = 0;
            enemies = [];
        }
    });
    
    // RENDER
    
    // clear background
    c.fillStyle = '#1c2641';
    c.fillRect(0, 0, WIDTH, HEIGHT);
    
    // draw player
    c.fillStyle = '#ffc03e'
    drawTriangle(player.pos[0], player.pos[1], player.angle);
    
    c.fillStyle = '#4da1fb'
    enemies.forEach(function(e) {
        drawCircle(e.pos[0], e.pos[1], 10);
    });

    // draw points
    c.fillStyle = 'rgba(255,255,255,0.8)'
    c.font = '28px monospace';
    c.fillText(points, 20, 35);
    
    c.fillStyle = 'rgba(255,192,62,0.5)'
    c.font = '20px monospace';
    c.fillText(hs, 20, 55);
    
    last = time;
    
})(0);