Attract nearby blobs by moving the mouse. Simulates several hundred blobs, collisions between them, and collisions with a sinusoidal terrain.
_='Z a)a[Z@+(Z[6]||Z[2])]=a[Z$m={};p=t=0;q=s=o=250;w=.01;onmousemove=function(w){qX;sY};setInterval(\'W=c.wPEWP;H=(c.hCEHC)-150;t+=.005;if(w>){eAp++]=[$u=*W;ge=5+9*={}f=u+RDgN=sD-;k="hsl("+o*+",99%,50%)";j=6*gj=p;dAJj$)if(ge+e,ha?ab?b,l!=j&&h>-h<f>-f<2){h/=z=#f/=z;z*e/g;kBdJk$)n=0,(:?a)K+(y?b)*f-z)x-=nKO-=n*f{fillStylek;ba(mv(e@.x,e@.y)gQ2Fh3.xx,g3.y7kx,nN7 h=h+k, i3+n, c3-n, d=k-h,ln(:Osr(fl(k3=hab=0h+c* Gd,g+* d+cG7k+y;k=(#g-4K*(k?j))-g)/2/hx+hcO+id,h=q-:=sL7g=,5),hLf+h/gNLg+w+f/gfg7a+=m(0x+h),W),b+N+=fLy<0&&(:-=f/2*ROa/Bb/=}\',8;jBjJ;)dj]Math.d.random()}l=p;eAJl$)=H+99*se.= f.Q1Ffor(,2&&max(- (t+:/o)20);x=e[=w.pagehK+f*f* yx*ing*,fa.=/4+k*#sqrt($];3=g7y,:x?-@[0]A=m[B=;CeightD(j/4)E=nerF)%],Gdc*J--K*hL-NyOyPidthQ(j+Rcos';for(Y in $='RQPONLKJGFEDCBA@?:73$# ')with(_.split($[Y]))_=join(pop());eval(_)
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