23 lines
827 B
C
23 lines
827 B
C
/* http://a1k0n.net/2011/07/20/donut-math.html */
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k;double sin()
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,cos();main(){float A=
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0,B=0,i,j,z[1760];char b[
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1760];printf("\x1b[2J");for(;;
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){memset(b,32,1760);memset(z,0,7040)
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;for(j=0;6.28>j;j+=0.07)for(i=0;6.28
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>i;i+=0.02){float c=sin(i),d=cos(j),e=
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sin(A),f=sin(j),g=cos(A),h=d+2,D=1/(c*
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h*e+f*g+5),l=cos (i),m=cos(B),n=s\
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in(B),t=c*h*g-f* e;int x=40+30*D*
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(l*h*m-t*n),y= 12+15*D*(l*h*n
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+t*m),o=x+80*y, N=8*((f*e-c*d*g
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)*m-c*d*e-f*g-l *d*n);if(22>y&&
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y>0&&x>0&&80>x&&D>z[o]){z[o]=D;;;b[o]=
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".,-~:;=!*#$@"[N>0?N:0];}}/*#****!!-*/
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printf("\x1b[H");for(k=0;1761>k;k++)
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putchar(k%80?b[k]:10);A+=0.04;B+=
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0.02;}}/*****####*******!!=;:~
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~::==!!!**********!!!==::-
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.,~~;;;========;;;:~-.
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..,--------,*/
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