2048 Game Online – Play Free Puzzle Game | TrendTracker Live

2048 Game

Swipe or use arrow keys to join the numbers and reach 2048.
Score0
Best0
On a computer, click the board first, then use the arrow keys or W A S D.
(function(){var b=[],score=0,best=0,over=false,won=false,hist=null,bd,sx=0,sy=0;function $(i){return document.getElementById(i)}function ge(a,c){return Math.max(a,c)===a}function ix(i,p,d){return d===0?i*4+p:d===2?i*4+3-p:d===1?p*4+i:(3-p)*4+i}function msg(t){$("t48m").textContent=t}function slide(a){var r=[],g=[],sc=0,k=0,v,nx;a=a.filter(Boolean);while(k!==a.length){v=a[k];nx=(k+1!==a.length)?a[k+1]:0;if(v===nx){r.push(v*2);g.push(1);sc+=v*2;k+=2}else{r.push(v);g.push(0);k+=1}}while(r.length!==4){r.push(0);g.push(0)}return {r:r,g:g,s:sc};}function spawn(){var e=[],k;for(k=0;k!==16;k++){if(b[k]===0){e.push(k)}}if(e.length===0){return -1}var q=e[Math.floor(Math.random()*e.length)];b[q]=Math.floor(Math.random()*10)===0?4:2;return q;}function can(){var k,c,r;for(k=0;k!==16;k++){if(b[k]===0){return true}c=k%4;r=(k-c)/4;if(c!==3){if(b[k]===b[k+1]){return true}}if(r!==3){if(b[k]===b[k+4]){return true}}}return false;}function render(mg,nw){var k,t,v;for(k=0;k!==16;k++){t=bd.children[k];v=b[k];t.textContent=(v===0?"":String(v));t.className="tt-t"+(v===0?"":(ge(v,4096)?" vx":" v"+v))+(k===nw?" n":"")+(mg.indexOf(k)!==-1?" m":"");}$("t48s").textContent=String(score);$("t48r").textContent=String(best);}function start(){var k;b=[];for(k=0;k!==16;k++){b.push(0)}score=0;over=false;won=false;hist=null;$("t48").className="";spawn();var c=spawn();render([],c);msg("Swipe the board or use arrow keys.");}function move(d){if(over){return}var prev=b.slice(),ps=score,moved=false,gain=0,mg=[],i,p,q,line,o;for(i=0;i!==4;i++){line=[];for(p=0;p!==4;p++){line.push(b[ix(i,p,d)])}o=slide(line);for(p=0;p!==4;p++){q=ix(i,p,d);if(b[q]!==o.r[p]){moved=true}b[q]=o.r[p];if(o.g[p]===1){mg.push(q)}}gain+=o.s;}if(!moved){return}hist={b:prev,s:ps};score+=gain;if(ge(score,best+1)){best=score;try{localStorage.setItem("t48best",String(best))}catch(e){}}var nw=spawn();render(mg,nw);if(!won){for(i=0;i!==16;i++){if(ge(b[i],2048)){won=true;msg("You made 2048! Keep playing for a higher score.")}}}if(!can()){over=true;$("t48").className="dead";msg("Game over. Press New game to try again.")}}function undo(){if(hist===null){return}b=hist.b;score=hist.s;hist=null;over=false;$("t48").className="";render([],-1);msg("Move undone.");}function bind(){bd=$("t48b");bd.addEventListener("pointerdown",function(e){sx=e.clientX;sy=e.clientY;try{bd.setPointerCapture(e.pointerId);bd.focus({preventScroll:true})}catch(x){}});bd.addEventListener("pointerup",function(e){var dx=e.clientX-sx,dy=e.clientY-sy,ax=Math.abs(dx),ay=Math.abs(dy);if(ge(Math.max(ax,ay),24)){if(ge(ax,ay)){move(ge(dx,0)?2:0)}else{move(ge(dy,0)?3:1)}}});bd.addEventListener("keydown",function(e){var m={ArrowLeft:0,ArrowUp:1,ArrowRight:2,ArrowDown:3,a:0,w:1,d:2,s:3}[e.key];if(m!==undefined){e.preventDefault();move(m)}});}window.tg48={start:start,undo:undo};try{best=parseInt(localStorage.getItem("t48best"),10)||0}catch(e){best=0}bind();start();})();