N=10
S=6
L=0.5

math : -i"x,y,n" -t "row > $N*$N-.5" \
-e"x=row%$N,y=int(row/$N),y-=(x%2)/2,n=0" \
-o"x+$L*cos(2*PI*n/$S),y+$L*sin(2*PI*n/$S),(n==$S)*(14.99-rnd(0)/5)" \
-b"n++ < $S,-1" -o"x,y,100+int(20*rnd(0))" |
plt % -F"
W 0 0 1 1
p (Fh)
tf sdemo.l
xe 0 0
ye 0 0
s xyt"