JS1k 2018 - 3105 - Details - A volatile JavaScript golfing competition

m=(z,r)=>{q=s/6;y=s-s/3;r&&j++;u=[,"4f6","ed6","fcd","f46","98a","fff","090"];n=o=>{c.fillStyle=o?"#"+u[o]:"#cbb";c.beginPath();f=o!=2?o?i?y:25:s:0;x=o!=2?o?q:0:q*3;c[o==2?"arc":"rect"](x+(i+(r?!i?l-4:l:0)-1-(j-1)*l)*s,l*3+x+j*s+(!i||r?0:s),f||y/3,f,2*Math.PI);c.fill()};i?n():c.clearRect(0,0,l*s*2,60);n(z)};а=e=>{k=k||e.keyCode;v="";в=i=j=0;switch(k){case 26:k++;return;case 27:top.reload();case 38:p-=l*2;case 40:p+=l+1;case 37:p--;default:p--;case 39:t++;if(p++<1)p=1;k=Math.random();t%2&&p%2&&(v+=" SPIKES! ",в=-l*k>>0);p>l*l&&(l++,p=1,g=l+t*k>>0,з=g*2-l>>0);p==g&&(g=0,т+=5+k*l>>0,v=" COIN "+v);p==з&&(з=-1,в+=5+k*l>>0,v+=" HP+");k<l/(99+l*5)?(k=l*k*9>>0,v=" BATTLE! "+v,в-=k,k=32):k=0;s=(60-l*1.5);for(h+=в;i<=l*l;i++)m((i==p?1:i==g?2:i==з?7:32==k&&i?3:i%2?t%2?4:5:6),i/l==i/l>>0)};c.fillStyle="#333";c.font="20px Arial";c.fillText("Gold:"+т+"  HP:"+h,8,24);c.fillText("Stage:"+(l-4)+"/"+t+" ."+(h<=0?(k=26)&&v+в+" GAME OVER":v+(в||"..")),8,52)};б=c=>{l=c;з=g=h=13;onkeydown=а;а(т=p=t=k=j=0)};б(5)

Description

Dungeon Crawler. Use ARROW Keys to Move and SPACE to Wait a turn. Press ESC to restart the game. Each stage of this dungeon features a deadly spiked field. Try to stroll safely along and through the traps by carefully not stepping onto the red squares. Get to the next stage by reaching the bottom of the current one. Fight dangerous battles while collecting every gold coin and health potion on your way deeply into the vast dungeon. Enjoy!

Base64 encoded

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Original source

m=(z,r)=>{
  q=s/6;
  y=s-s/3;
  r&&j++;
  u = [,"4f6","ed6","fcd","f46","98a","fff","090"];
  n=o=>{
    c.fillStyle = o ? "#"+u[o] : "#cbb";
    c.beginPath();
    f = o!=2?o?i?y:25:s:0;
    x = o!=2?o?q:0:q*3;
    c[o==2?"arc":"rect"](x+(i+(r?!i?l-4:l:0)-1-(j-1)*l)*s, l*3+x+j*s+(!i||r?0:s), f||y/3, f, 2*Math.PI);
    c.fill()
  };
  i ? n() : c.clearRect(0, 0, l*s*2, 52);
  n(z)
};
а=e=>{
  k=k||e.keyCode;
  v="";в=i=j=0;
  switch(k){
    case 26:k++;return;
    case 27:top.reload();
    case 38:p-=l*2;
    case 40:p+=l+1;
    case 37:p--;
    default:p--;
    case 39:
      t++;if(p++<1)p=1;
      k=Math.random();
      t%2&&p%2&&(v+=" SPIKES! ",в=-l*k>>0);
      p>l*l&&(l++,p=1,g=l+t*k>>0,з=g*2-l>>0);
      p==g&&(g=0,т+=5+k*l>>0,v=" COIN "+v);
      p==з&&(з=-1,в+=5+k*l>>0,v+=" HP+");
      k<l/(99+l*5)?(k=l*k*9>>0,v=" BATTLE! "+v,в-=k,k=32):k=0;
      s=(60-l*1.5);
      for(h+=в;i<=l*l;i++) m((i==p?1:i==g?2:i==з?7:32==k&&i?3:i%2?t%2?4:5:6),i/l==i/l>>0)
  };
  c.fillStyle = "#333";
  c.font = "20px Arial";
  c.fillText("Gold:"+т+"  HP:"+h,8,24);
  c.fillText((l-4)+"/"+t+" ."+(h<=0 ? (k=26)&&v+в+" GAME OVER" : v+(в||"..")),8,52)
};
б=c=>{
  l=c;
  з=g=h=13;
  onkeydown=а;
  а(т=p=t=k=j=0)
};
б(5)

JS1k: The JavaScript code golfing competition

2018 - The Volatile Coin Mine

Spiked for a Penny