Does a folder contain a single file? Move the file up and delete the folder if desired.
X=Math;Y=
X.sin;Z=X.cos;A=1;
B=1;setInterval(function
(){a=[],o=[];A+=.07,B+=.03
;for(t=Z(A),n=Y(A),r=Z(B),s=
Y(B),h=0;h<1760;h++)a[h]=h%80==
79?"\n":" ",o[h]=0;for(M=0;M<6.28
;M+=.07){v=Z(M); c=Y(M);for(i=
0;i<6.28;i+=.02 ){f=Y(i);e=Z(
i);l=v+2;g=1/( f*l*n+c*t+5);
j=f*l*t-c*n;u= 0|20+25*g*(e*l
*r-j*s);I=0|12+12.5*g*(e*l*s+j*r
);$=u+80*I;b=0|8*((c*n-f*v*t)*
r-f*v*n-c*t-e*v*s);I<22&&0<=
I&&0<=u&&u<79&&g>o[$]&&(o[
$]=g,a[$]=".,-~:;=!*#$@"
[0<b?b:0])}}console.
log(a.join(""))
},50);