rbtext/rbtext.c

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/*
Rainbow Text (rbtext)
$ gcc -o rbtext rbtext.c
Created by Seelenlos <samoyo@protonmail.com>
NO WARRANTY OF ANY KIND.
NO LIABILITY TO CREATOR FOR ANY TYPE OF DAMAGE.
I DON'T CARE HOW YOU USE OR CONFIGURE THIS PROGRAM.
*/
#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include <unistd.h>
// How many milliseconds the program will wait until the next print
#define CONF_SLEEP_TIMEMS 75
// BEWARE RICERS
// If you add extra colors make sure to
// a) Add it to the color enum in the genColors function
// b) Add the case to the switch statement in the genColors function
// c) Update the COLORS definition with the new amount of colors
// FORMAT
// #define COLOR "R;G;B"
#define RED "193;71;87"
#define ORANGE "193;116;71"
#define YELLOW "193;177;71"
#define GREEN "149;193;71"
#define CYAN "71;193;161"
#define BLUE "71;165;193"
#define PURPLE "155;71;193"
#define PINK "193;71;153"
#define COLORS 8
// Keep track of how many ticks (characters read from char *s) have gone by
long long t;
void genColors(char *s) {
for (int i = 0; i < strlen(s); i++,t++) {
enum color {
red,orange,yellow,green,cyan,blue,purple,pink
};
enum color c = ((t/2) & (COLORS-1));
char *cstr = malloc(256*sizeof(char));
switch (c) {
case red:
cstr = "\e[38;2;"RED"m";
break;
case orange:
cstr = "\e[38;2;"ORANGE"m";
break;
case yellow:
cstr = "\e[38;2;"YELLOW"m";
break;
case green:
cstr = "\e[38;2;"GREEN"m";
break;
case cyan:
cstr = "\e[38;2;"CYAN"m";
break;
case blue:
cstr = "\e[38;2;"BLUE"m";
break;
case purple:
cstr = "\e[38;2;"PURPLE"m";
break;
case pink:
cstr = "\e[38;2;"PINK"m";
break;
}
printf("%s%c",cstr,s[i]);
}
}
int main(int carg, char **varg) {
if (carg < 2) {
printf("\e[1;31m[ERROR]\e[0m No arguments given.\n\tUSAGE: \e[34m%s \e[33m<text>\3[0m\n",varg[0]);
return 1;
}
char *text = malloc(1024*sizeof(char));
int t_ind = 0;
// Similar to pythons str.join() method
// Adds all the arguments together with spaces seperating them
// EG: ./rbtext hello world > "hello world"
for (int i = 1; i < carg; i++) {
for (int j = 0; j < strlen(varg[i]); j++,t_ind++) {
text[t_ind] = varg[i][j];
}
text[t_ind] = ' ';
t_ind++;
}
while (1) {
fflush(stdout);
printf("%s","\r");
genColors(text);
fflush(stdout);
usleep(CONF_SLEEP_TIMEMS*1000);
}
return 0;
}