The object of this competition is to create a cool JavaScript "application" no larger than 1k. Starting out as a joke, the first version ended with a serious amount of submissions, prizes and quality.
overflow
Submission
function R(c){if(S>1&&S<2){for(i=0;i<16;i++)w=parseInt(l[i+L*16]),x=i%4*g+G,y=(i/4|0)*g+G,w&&(b[x+q+y]={x:x,y:y,p:0,P:w});S++}k=0,v=[];for(o in b){v[k]=j=b[o],p=j.p+=(j.P-j.p)/3,I=j.i,x=j.x+=[,4,,-4][I]||0,y=j.y+=[4,,-4][I]||0;for(i=4;i--&&p>4;)b[o+i]={x:x,y:y,p:1,P:1,i:i},b[o]=0;(x<-G||y<-G||x>n+G||y>n+G||!j||I+1&&(c=b[x+q+y]))&&(delete b[o],c&&(c.P+=c.P)),k++}P>3&&(S=P=0,b=[]),S-2||k||(S=P=0,L++);for(y=0;y<n;y+=2)for(x=0;x<n;x+=2){C=0;for(V=k;V--;)o=v[V],o&&(X=o.x-x,Y=o.y-y,C+=o.p/(X*X+Y*Y+1));C*=1e4,O=S<1?0:~~C*((x-G)%g&&(y-G)%g?1:2),a[F]="rgb("+(L>1?O:0)+","+(L<4?O:0)+",0)",a.fillRect(x,y,2,2)}a[F]="#fff",S>1?a.fillText(P+q+3,5,16):a.fillText(L<6?(S+=.04,L>4?"final level":"level "+(L+1)):W+" clicks",105,125),setTimeout(R)}n=c.width=c.height=240,b={},F="fillStyle",W=S=L=P=0,g=60,G=30,q=" / ",l="000004400120000041222222214222221141242411411121114211212244121202404004200222422220221221240240",a.font="13px arial",c.onclick=function(a){x=a.pageX,y=a.pageY,x-=x%g-G,y-=y%g-G,z=b[x+q+y],z&&(z.P*=2,P++,W++)},R()Description
A puzzle game with metaballs in < 1k. Click the bubbles until they pop to trigger a chainreaction. Remove all blobs with 3 clicks to complete a level.
Update:
-added 3 Levels
-improved rendering speed
Original source
n=c.width=c.height=240;
b={};
F='fillStyle';
W=S=L=P=0;
g=60;
G=30; // G = g/2
q=' / ';
/* Level 1 */
l = '0000'+
'0440'+
'0120'+
'0000'+
/* Level 2 */
'4122'+
'2222'+
'2142'+
'2222'+
/* Level 3*/
'1141'+
'2424'+
'1141'+
'1121'+
/* Level 4*/
'1142'+
'1121'+
'2244'+
'1212'+
/* Level 5*/
'0240'+
'4004'+
'2002'+
'2242'+
/* Level 6*/
'2220'+
'2212'+
'2124'+
'0240';
a.font='13px arial';
c.onclick = function(e){
x = e.pageX;
y = e.pageY;
x -=x%g-G;
y -=y%g-G;
z=b[x+q+y];
z&&(z.P*=2,P++,W++) //inc power
}
function R(f){//bugfix: f must be defined
//load new level
if(S>1&&S<2){
for(i=0;i<16;i++){
w = parseInt(l[i+L*16]);
x = i%4*g+G;
y = ((i/4)|0)*g+G;
w&&(b[x+q+y]={x:x,y:y,p:0,P:w});
}
S++
}
k=0;
v=[];
for(o in b){//update blobs
v[k]=j=b[o];
p=j.p+=(j.P-j.p)/3;//tween power
I=j.i;
x=j.x+=[,4,,-4][I]||0; // move if i set: i = direction
y=j.y+=[4,,-4,][I]||0;
for(i=4;i--&&p>4;){//split if p > 4
b[o+i]={x:x,y:y,p:1,P:1,i:i};
b[o]=0;
}
(x<-G||y<-G||x>n+G||y>n+G||!j||(I+1&&(f=b[x+q+y])))&&(delete b[o],f&&(f.P+=f.P)); //remove off screen, collision, deleted blobs
k++; // count onscreen blobs
}
//state changes:
P>3&&(S=P=0,b=[]); //to many turns
S-2||k||(S=P=0,L++); // completed level
//draw every pixel
for(y=0;y<n;y+=2){
for(x=0;x<n;x+=2){
C=0;
for(V=k;V--;){//for each blob
o=v[V];
o&&(
X=o.x-x,
Y=o.y-y,
C+=o.p/(X*X+Y*Y+1))
}
C*=1E4;
O=S<1?0:(~~C*(!((x-G)%g&&(y-G)%g)?2:1));//calc color blob && grid
a[F]='rgb('+(L>1?O:0)+','+(L<4?O:0)+',0)'; //set Color
a.fillRect(x,y,2,2);
}
}
a[F]='#fff';
S>1?
a.fillText(P+q+3,5,16):
a.fillText(L<6?(S+=.04,L>4?'final level':'level '+(L+1)):W+' clicks', 105, 125);
setTimeout(R);
}
R()