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497

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g=pget s=pset r=rnd f=flr
h=10
::b::cls(0)rect(0,0,126,126,4)line(127,1,127,127,2)line(1,127,127,127,2)p={}
if(h>4)h-=1
for u=0,3843 do add(p,u)end
while #p>0 do
d=1<<f(r(h))i=1+f(r(#p))u=2+2*f(p[i]/62)v=p[i]%62*2+2
while g(u,v)==0 do
s(u,v,4)u+=(d&1)-((d>>2)&1)v+=((d>>1)&1)-((d>>3)&1)end
deli(p,i)end
x,y=1,1
s(125,125,12)::l::d=btn()u=x+((d>>1)&1)-(d&1)if(g(u,y)==4)u=x
v=y+((d>>3)&1)-((d>>2)&1)if(g(u,v)==4)v=y
if(g(u,v)==12)print("\asfcefcecfcaa")goto b
s(x,y,0)x,y=u,v
s(x,y,10)flip()goto l