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eval(s=(%w@q=$*[0]&.to_i;z="eval(s=(%w#{64.chr}#{s}##{s*9}#{64.chr}.join))";h=25
; w=80;px=2;py=h/2;vx=0.5;vy=-0.5;qx=w-3;
q y=h/2;ux=-0.5;uy=0.5;b=Array.new(h*w){|
i |y=i/w;x=i%w;(x==0||x==w-1||y==0||y==h-
1 )?2:(w/2<x)?1:0};f=->(x,y,vx,vy,c){sx=v
x ;sy=vy;8.times{|i|t=i*Math::PI/4;cos=Ma
t h.cos(t);sin=Math.sin(t);nx=x+cos/2;ny=
y +sin/2;k=ny.to_i*w+nx.to_i;if(0<=nx&&nx
< w&&0<=ny&&ny<h&&b[k]!=c);b[k]==2?0:b[k]
= c;(sin.abs<cos.abs)?sx*=-1:sy*=-1;end};
[ sx,sy]};g=->(x,y,vx,vy){[(x+vx<0||w<=x+
v x )?-vx:vx,(y+vy<0||h<=y+vy)?-vy:vy]};j=0
; loop{j+=1;(vx,vy=f[px,py,vx,vy,0]); (vx
, vy=g[px,py,vx,vy]);px+=vx;py+=vy;(ux,uy
= f[qx,qy,ux,uy,1]);(ux,uy=g[qx,qy,ux,uy]
) ;qx+=ux;qy+=uy;q&&((q<j)?(break):(q!=j)
? (next):0);q||(print"\e[H\e[2J");c=[];h.
t imes{|y|w.times{|x|c<<!(b[y*w+x]==0&&[p
x .to_i,py.to_i]!=[x,y]||[qx.to_i,qy.to_i
] ==[x,y])};};t=c.count(!!0);i=0;h.times{
| y|w.times{|x|print((y==h-1&&x>=w-8)?"#{
6 4.chr}.join))"[8+x-w]:c[y*w+x]?[z[i],i+
= 1][0]:32.chr)};puts;};sleep(0.05);}#q=$
* [0]&.to_i;z="eval(s=(%w#{64.chr}#{s}##{
s*9}#{64.chr}.join))";h=25;w=80;px=2;py=h/2;vx=0.5;vy=-0.5;qx=w-3;qy=h/2@.join))
|
