radare2/libr/util/donut.c

96 lines
2.1 KiB
C

/* radare2 - LGPL - Copyright 2019 - pancake */
#if 0
// Inspired by:
// https://www.a1k0n.net/2006/09/15/obfuscated-c-donut.html
k;double sin()
,cos();main(){float A=
0,B=0,i,j,z[1760];char b[
1760];printf("\x1b[2J");for(;;
){memset(b,32,1760);memset(z,0,7040)
;for(j=0;6.28>j;j+=0.07)for(i=0;6.28
>i;i+=0.02){float c=sin(i),d=cos(j),e=
sin(A),f=sin(j),g=cos(A),h=d+2,D=1/(c*
h*e+f*g+5),l=cos (i),m=cos(B),n=s\
in(B),t=c*h*g-f* e;int x=40+30*D*
(l*h*m-t*n),y= 12+15*D*(l*h*n
+t*m),o=x+80*y, N=8*((f*e-c*d*g
)*m-c*d*e-f*g-l *d*n);if(22>y&&
y>0&&x>0&&80>x&&D>z[o]){z[o]=D;;;b[o]=
".,-~:;=!*#$@"[N>0?N:0];}}/*#****!!-*/
printf("\x1b[H");for(k=0;1761>k;k++)
putchar(k%80?b[k]:10);A+=0.04;B+=
0.02;}}/*****####*******!!=;:~
~::==!!!**********!!!==::-
.,~~;;;========;;;:~-.
..,--------,*/
#else
#include <r_util.h>
#include <math.h>
// global iterators
R_API char *r_str_donut(int osize) {
int size = osize;
static float A= 0;
static float B= 0;
float i,j,z[1760];
int k;
char b[1760];
char o[1760];
memset (b,32,1760);
memset (z,0,7040) ;
if (osize == 0) {
size = 100;
} else {
A=0;
B=0;
}
double Zero = (((double)(100 - size) / 100) * 6);
double Width = 30;
double Height = 15;
double Align = 25; // 40;
if (osize != 0) {
Align = 40;
}
for (j=Zero; 6.28>j; j+=0.07) {
for (i=Zero;6.28 >i;i+=0.02){
float c=sin(i);
float d=cos(j);
float e = sin(A);
float f=sin(j);
float g=cos(A);
float h=d+2;
float D=1/(c* h*e+f*g+5),l=cos(i),m=cos(B),n=sin(B),t=c*h*g-f*e;
int x=Align+Width*D*(l*h*m-t*n);
int y=12+Height*D*(l*h*n +t*m);
int o=x+80*y;
int N=8*((f*e-c*d*g)*m-c*d*e-f*g-l*d*n);
if (22 >y && y > 0 && x>0&&80>x&&D>z[o]) {
z[o] = D;
b[o] = " .,-:!/|S$@&"[N > 0? N: 0];
}
}
}
for (k=0;k<1760;k++) {
o[k] = k%80?b[k]:10;
}
o[sizeof (o) - 1] = 0;
if (osize == 0) {
A += 0.03;
B += 0.02;
} else {
A += 0.0000;
B += 0.01;
}
char *r = strdup (o);
r = r_str_trim_tail (r);
return r;
}
#endif