JS1k 2012 - 1246 - Details - A lovely JavaScript golfing competition

Author:

Rebecca

Twitter:

GitHub:

Facebook:

Google+:

Reddit:

/r/

Pouet:

Website:

games.23inch.de/td

Compo:

classic

Demo link:

https://js1k.com/2012-love/demo/1246

Shortlink:

https://js1k.com/1246

Blog post:

please update here!

Bytes:

1024

Chars:

1008

Submission

f="o=wURHmHs=[7:40}];e(P)U2;2+Gx=@-=<-~JD+2>mqRq=:~Bq^sMmq=DPV''+YzV!s^!m[l]^B[60]n=wo(BHS=YHp=X=3PA=8n(Ponclick=wA^n(PxXYJp?p=!p:Bq?`Key?FL++X):>X/3^>1X-=++*3):2>XFM0?F0):X-=2)T=wa.font=i+'px Arial	dText(e,x,y+i*.3)setInval(wUc.height=29LW=S/20>>4;Gj1-i/1_0OLi,29L1p|=!A;U8;Gj.2OiN_,1,225)O_,iN225,1PE$'+X+'  ∿'+W,2Lj1,245Pa.textAlign='cen	E↻▶'[A&&1],p?30:C-Cl*_PE♥	A*24,7N4NZ00'Y=Yz@+x,<+yPE☠	D/`m*161|LQx+@NQy+<*_PV-60?D>0^!++X:A--&0}PBzj.6,(ee=e)&&E♖♜♛'[D],3L@N<NYzV4>x/@-e@)*i+y/<-e<)*izi&&2>eDj1,D-=eD))}PS++%_^0/4>24+W^YLy:lW=(W+55)*2*W^5Lm:W48)z.fil(ws=R[];wfunction(e,i,x){q[x*8+y]ja.globalAlpha=da.fillD._32^||ZdStyle='#fVreturn Ufor*s.P);O,dRect(N*_,Mx:yL0,J,(x|y)>>3^H=[],Gi--;)Fo(Bq=ET('D`eC1Lp?112:@`x<`yBq.e(i=Q{x:i%2.push(=`page-16>>5PZff	,y},})_+shift@*8+<,e:=s.terS%_^(+1	',p^";for(i in g="	<@CDEFGHJLMNOPQUVZ^_`djqwz")with(f.split(g[i]))f=join(pop(l=new Date%8));eval(f)

Description

Defend your heart against waves of skulls by building a maze of towers but without blocking the way completely. Regular towers cost $2 and attack one enemy at a time but you can buy two upgrades to double their power ($3) and hit all enemies near by ($6). Letting eight skulls into your heart ends the game. Controls: * click to (re-)start the game and place or upgrade towers, * shift click to sell a tower for $1, * click outside of the game board to pause, and * refresh to change starting point (indicated by the arrow). Update: smaller board, two tower upgrades, random starting point, click to restart.

Base64 encoded

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

Original source

//////////////////////////////////////////////////////////////////////////
//                             .-.  .-.
//      _   _ ___ ___ ___ ____(%%%\/%%%)__ ____ ____ ___ ___ _   _
//     | |_| | __| _ | _ |_   _\%%%%%%/ _ |_   |   _| _ |  _| |_| |
//     |  _  | __|   |  _| | |  \%%%%/|   | | | | | |   | |_|  _ <
//     |_| |_|___|_|_|_|_| |_|   \%%/ |_|_| |_| |_| |_|_|___|_| |_|
//                                \/                           
//                                      by @veubeke
//////////////////////////////////////////////////////////////////////////
// see http://games.23inch.de/td/ for full documentation
//////////////////////////////////////////////////////////////////////////
// characters used ...
//
// for variables
//   local             e       i       m           s         x y
//   global    a   c                 l   n o p   r
//             A B                               R S T     W X Y
// in program  a b c d e f g h i     l m n o p   r s t u v w x y 
//             A B             I                 R S T     W X Y 
// packing                       j k           q                 z
//  	           C D E F G H   J K L   N O P Q       U V       Z

// cost map generation
genMap = function(e,i,x,y) {
  for(i = dir = [], // directions
      m = [], // cost map
      // starting with the heart, iterate over squares in frontier
      s=[{x:7,y:4,e:0}]; e=s.shift();)
    // check all adjacent squares
    for(i=2;2+i--;)
      x = e.x-i%2,
      y = e.y-~i%2,
      // if square is on the board and new path is shorter...
      (x|y)>>3 || e.e+2>m[x*8+y] || (
        // update directions
        dir[x*8+y] = {x:i%2,y:~i%2},
        // keep going if square is free
        board[x*8+y] || s.push({x:x,y:y,e:m[x*8+y] = e.e+1}));
  // return true if the path hasn't been blocked
  return ''+creeps.filter(function(e,i,x,y) { s = dir[e.x*8+e.y]; return !s }) ||
    !m[start] || board[60]
},

// game setup
setup = function(e,i,x,y) {
  genMap(
    // game board
    board = [],
    // animation step / timer
    step =
    // enemies
    creeps = [],
    // paused state
    paused =
    // money
    money = 3
  );
  // generate map on startup
  life = 8
},
setup();

// click handler
onclick = function(e,i,x,y) {
  // set up game if over
  life || setup();
  x = e.pageX-16 >> 5,
  y = e.pageY-16 >> 5,
  // pause when clicking outside of the board, unpause if paused
  (x|y)>>3 || paused ? paused = !paused
    : board[x*8+y]
      ? e.shiftKey
        // sell tower 
        ? genMap(board[x*8+y]=0,++money)
        // upgrade tower
        : board[x*8+y].e+1>money/3 || board[x*8+y].e>1 || (money-=++board[x*8+y].e*3)
      : 2>money || (
        // try placing tower and...
        genMap(board[x*8+y] = {x:x,y:y,e:0})
          // remove if is blocking the path...
          ? genMap(board[x*8+y]=0)
          // or charge player
          : money -= 2
        )
},

// text drawing
drawText = function(e,i,x,y) {
  a.font = i+'px Arial',
  // draw text relative to board...
  // and add difference between alphabetic baseline and middle
  a.fillText(e,32+x,32+y+i*.3)
},

// main loop
setInterval(function(e,i,x,y) {
    // draw background
    for(i = c.height = 290,
        wave = step/20 >> 4; i--;)
      a.globalAlpha = 1-i/1320,
      a.fillRect(0,i,290,1);
  
    a.fillStyle = '#fff',

    // pause game if no life left
    paused |= !life;

    // draw grid
    for(i=8; i--;)
      a.globalAlpha = .2,
      a.fillRect(32+i*32,32,1,225),
      a.fillRect(32,32+i*32,225,1);

    // print info
    drawText('$'+money+'  ∿'+wave,20,a.globalAlpha=1,245);
    a.textAlign = 'center',

    // draw pause/retry symbol or heart and arrow to show game state
    drawText('↻▶'[life&&1],paused?30:10,paused?112:-10,paused?112:start*32);
    paused || drawText('♥',life*2+14,7*32,4*32,a.fillStyle = '#f00');

    a.fillStyle = '#fff',
    // update creeps
    creeps = creeps.filter(function(e,i,x,y) {
      s = dir[e.x*8+e.y];
      // update position
      paused || step%32 || (e.x += s.x, e.y += s.y);
      // draw creep
      drawText('☠',e.e/e.m*16+11|0,step%32*s.x+e.x*32,step%32*s.y+e.y*32);
      // remove creeps that are dead or reached the heart
      return paused || e.x*8+e.y-60 ? e.e>0 || !++money : life--&0
    });
  
    // update towers
    board.filter(function(e,i,x,y) {
      s = dir[e.x*8+e.y];
      // inactive towers are darker
      a.globalAlpha = .6,
      (ee = e) &&
        // draw tower
        drawText('♖♜♛'[e.e],30,e.x*32,e.y*32,
          // find creeps near tower...
          paused || creeps.filter(function(e,i,x,y) {
            s = dir[e.x*8+e.y];
            return 4>(i=step%32*s.x/32+e.x-ee.x)*i+(i=step%32*s.y/32+e.y-ee.y)*i
          }).filter(function(e,i,x,y) {
            s = dir[e.x*8+e.y];
            // and shoot at them
            i && 2>ee.e || (a.globalAlpha = 1, e.e -= ee.e+1)
          }))
    });
  
    // add new creeps every ~15s
    paused || step++%32 || step%320/4>24+wave || creeps.push({x:0,y:start,e:wave=(wave+55)*2*wave||50,m:wave})
}, 48)

JS1k: The JavaScript code golfing competition

2012 - Love

Heart Attack