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chad_stride.c
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chad_stride.c
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#include <stdio.h>
#include <curses.h>
#include <stdlib.h>
#include <unistd.h> // usleep
#include <string.h> // strlen
#include <signal.h>
#include <stdbool.h>
#define CHAD_FRAMES 7
#define CHAD_ROWS 24
#define AVG_CHAD_WIDTH 25
#define DEFAULT_SIZE 1
#define MAX_MESSAGE_SIZE 50
bool RAINBOW = false, NORAINBOW = false, STAY = false, LOOP = false, NOFUCKS = false, COLOR = false, MES = false, REVERSE = false, FLIP = false;
long SLEEP_TIMER = 150000;
int SIZE = DEFAULT_SIZE, PAIR = 1;
const char* ARG_FLAGS = "slrfhRpb:a:c:m:";
char message[MAX_MESSAGE_SIZE+1];
/* Chad frames */
const char* chad_frames[CHAD_FRAMES][CHAD_ROWS] = {
{
" %",
" .(....",
" %......(",
" ,*........&",
" .#,.,,,,. .(",
" *.,.*,,,,&@/,%",
" /,,,,,,,,,,,,,,*",
" &,,((%.,,,,,,.#(*",
" &.,@.%,,,,,.(.*",
" .,..,.#*,,,,./.",
" /,,.@@/* ..,,,,/",
" @@@**@@@@@",
" @@@*@@...@@@",
" @@.@@***@@@......@@@",
" @@...@@*********@@@...@@",
" @@...@@@********@@ @@@",
"@....@@@***@@@**@",
" @@@@ @@******@@@",
" @******@@***@@",
" @...@@@ @@....@@*@@",
" @@@@...@ @..@***@@",
"@**@@@ @@***@",
"@**@@ @@@",
"@****@",
},
{
" & /",
" & ...%",
" % ......%",
" (.........%",
" @.,,,,.%@@&",
" @,,,@.,,@(/@.&",
" /,,,..,,,,,,,,,.@",
" &,,*..*.,,,,.((.",
" &*, ,&,,,,,*@%@",
" ..,..,,./,,,,,.@",
" %,,,..*%@&#.,.*,",
" @@*****@@@",
" @********@@@",
" @*******@...@@",
" @@@********@@...@",
" @@.@@@*******@...@@",
" @@@*@@@@@**@.....@@",
" @********@@ @@@",
"@@@ @@@***@@*@@@",
"@@*@@.@@@@@@@@..@",
"@@***@...@@@@...@",
"@@*@@ @@@ @@.@@",
"@@@ @@*****@",
" @@,,,,,,@@"
},
{
" %...",
" #...../",
" /........@",
" /,%######&%@",
" .,#,,,...(@%",
" %,,,,,,,,..,,,.",
" ,,,&./,,,,,,.#,,&",
" *,#*%%,,,,,,.#&",
" ...*../,,,,,.%@",
" %,,@,,,,,,,,,,,..",
" @@.,,,,,,,@ @&%",
" @*************@...@@",
" @@@@**********@@@.@@",
" @...@@******@@",
" @...@@******@@",
" @...@@******@@",
"@@...@*****@@*@@",
"@@...@**@****@@@",
" @@@@@@******@@",
" @@....@@@@@",
" @**@..@@@",
" @@***@",
" @@****@@",
" @*****@@"
},
{
" (../",
" /.....@",
" %........(",
" //%#####%&/(",
" ,.,/,,,,..#%&",
" &,,,,.,,.,..,,,",
" .,.(,.,,,,,,.#.,#",
" .,@/*@,,,,,,,#(",
" #.,&,(,,,,,,,#@",
" .,,%,,,,,,,,,,,,",
" @@@,,,,,,,.@@ %,",
" @@.@@*********@@.@@",
" @@.....@********@@.@@",
"@.....@@@********@@...@",
" @@...@@********@ @...@@",
" @@.....@*******@ @...@@",
" @@....@@***@@",
" @@@@***@@@@",
" @@****@@@@",
" @..@@@@.....@@@***@@",
" @...@@@@@...@@***@",
" @@...@ @**@",
" @@**@@@ @@",
" @@****@@"
},
{
" /*%",
" &....*",
" (.......",
" %.........",
" /(.,,,,.../",
" ,,,@,,,.%@#@#",
" ,,,,,,,,,,,,,,.#",
" ,,(@(,.,,,,,%(/%",
" #,%#..,,,,,%.*&",
" %,,&,,*&,,,,,./",
" %.,,*@#/....,,,.#",
" @@.@@*@@@@@@@@",
" @@.....@********@@",
"@.....@@*********@@@",
"@....@**********@...@@",
" @@...@@********@@@.@@",
" @@.....@@@***@@ @@.@@",
" @@@@@***@@@@@@...@@",
" @*****@**@@ @@@",
" @@@***@@@",
" @@.@@@@@.@@",
" @@...@@ @@...@@",
"@**@@@ @....@@@@",
"@****@ @@*****@"
},
{
" %..&",
" %.....(",
" ,,........",
" #..**,/*, .",
" *.,,,,,%#/(,",
" *,,, .,,&@#.,,*",
" #,,.%#,,,,,,,,/,(",
" @,..%.&,,,,,,..",
" (@,%,#,,,,,/,.@",
" ,,,,.,,,.,,,,,,.#",
" @@,,,,,,., &,#*",
" @..@**@@@@@",
" @@...@*******@",
"@@.....@*******@",
" @@....@@@****@",
" @@....@@@@@",
" @@@@@@****@",
" @@******@@.@@",
" @@***@@@@@.@@",
" @**@@@...@@@",
" @@@...@@",
" @...@@",
" @*****@@",
" @@@@@"
},
{
" &..&",
" (...../",
" /.........",
" (.*(((##/,.",
" ( ,,,,,&**(",
" ,,,, .,,#&/.,,(",
" #,, @&,,,,,,,,#,/",
" @,..&.%,,,,,,.*",
" /&,&,#,,,,,*..&",
" ,,,,.,,,.,,,,,,.%",
" &,,,,,,., &/&.",
" @@@*@@...@@*@@...@",
" @**@.....@@@.....@",
" @***@@........@@@",
"@@.@@****@@@@@",
" @@@********@",
" @********@@",
" @**********@",
" @***@@***@@@",
" @...@@@....@",
" @...@@*@@@@",
"@@...@ @****@",
"@@@@@@ @****@",
"@@******@"
}
};
const char* chad_frames_flip[CHAD_FRAMES][CHAD_ROWS] = {
{
"%",
"....).",
" )......%",
" &........*,",
" ). .,,,,.,#.",
" %,\\@&,,,,*.,.*",
" *,,,,,,,,,,,,,,\\",
" *)#.,,,,,,.%)),,&",
" *.).,,,,,%.@,.&",
" .\\.,,,,*#.,..,.",
" \\,,,,.. *\\@@.,,\\",
" @@@@@**@@@",
" @@@...@@*@@@",
" @@@......@@@***@@.@@",
" @@...@@@*********@@...@@",
" @@@ @@********@@@...@@",
" @**@@@***@@@....@",
" @@@******@@ @@@@",
" @@***@@******@",
" @@*@@....@@ @@@...@",
" @@***@..@ @...@@@@",
" @**@@ @@@***@",
" @@@ @@**@",
" @****@",
},
{
"\\ &",
" %... &",
" %...... %",
" %.........)",
" &@@%.,,,,.@",
" &.@\\)@,,.@,,,@",
" @.,,,,,,,,,..,,,\\",
" .)).,,,,.*..*,,&",
" @%@*,,,,,&, ,*&",
" @.,,,,,\\.,,.,..",
" ,*.,.#&@%*..,,,%",
" @@@*****@@",
" @@@********@",
" @@...@*******@",
" @...@@********@@@",
" @@...@*******@@@.@@",
" @@.....@**@@@@@*@@@",
" @@ @@********@",
" @@@*@@***@@@ @@@",
" @..@@@@@@@@.@@*@@",
" @...@@@@...@***@@",
" @@.@@ @@@ @@*@@",
" @*****@@ @@@",
" @@,,,,,,@@"
},
{
"...%",
" \\.....#",
" @........\\",
" @%&######%,\\",
" %@)...,,,#,.",
" .,,,..,,,,,,,,%",
" &,,#.,,,,,,\\.&,,,",
" &#.,,,,,,%%*#,*",
" @%.,,,,,\\..*...",
" ..,,,,,,,,,,,@,,%",
" %&@ @,,,,,,,.@@",
" @@...@*************@",
" @@.@@@**********@@@",
" @@******@@...@",
" @@******@@...@",
" @@******@@...@",
" @@*@@*****@...@@",
" @@@****@**@...@@",
" @@******@@@@@@",
" @@@@@....@@",
" @@@..@**@",
" @***@@",
" @@****@@",
" @@*****@"
},
{
"\\..)",
" @.....\\",
" )........%",
" )\\&%#####%\\\\",
" &%#..,,,,\\,.,",
" ,,,..,.,,.,,,,&",
" #,.#.,,,,,,.,).,.",
" )#,,,,,,,@*\\@,.",
" @#,,,,,,,),&,.#",
" ,,,,,,,,,,,,%,,.",
" ,% @@.,,,,,,,@@@",
" @@.@@*********@@.@@",
" @@.@@********@.....@@",
" @...@@********@@@.....@",
" @@...@ @********@@...@@",
" @@...@ @*******@.....@@",
" @@***@@....@@",
" @@@@***@@@@",
" @@@@****@@",
" @@***@@@.....@@@@..@",
" @***@@...@@@@@...@",
" @**@ @...@@",
" @@ @@@**@@",
" @@****@@"
},
{
"%*\\",
" *....&",
" .......)",
" .........%",
" \\...,,,,.)\\",
" #@#@%.,,,@,,,",
" #.,,,,,,,,,,,,,,",
" %\\)%,,,,,.,)@),,",
" &*.%,,,,,..#%,#",
" \\.,,,,,&*,,&,,%",
" #.,,,....\\#@*,,.%",
" @@@@@@@@*@@.@@",
" @@********@.....@@",
" @@@*********@@.....@",
" @@...@**********@....@",
" @@.@@@********@@...@@",
" @@.@@ @@***@@@.....@@",
" @@...@@@@@@***@@@@@",
" @@@ @@**@*****@",
" @@@***@@@",
" @@.@@@@@.@@",
" @@...@@ @@...@@",
" @@@@....@ @@@**@",
" @*****@@ @****@"
},
{
"&..%",
" ).....%",
" ........,,",
" . ,*\\,**..#",
" ,)\\#%,,,,,.*",
" *,,.#@&,,. ,,,*",
" ),\\,,,,,,,,#%.,,#",
" ..,,,,,,&.%..,@",
" @.,\\,,,,,#,%,@)",
" #.,,,,,,.,,,.,,,,",
" *#,& ,.,,,,,,@@",
" @@@@@**@..@",
" @*******@...@@",
" @*******@.....@@",
" @****@@@....@@",
" @@@@@....@@",
" @****@@@@@@",
" @@.@@******@@",
" @@.@@@@@***@@",
" @@@...@@@**@",
" @@...@@@",
" @@...@",
" @@*****@",
" @@@@@"
},
{
"&..&",
" \\.....)",
" .........\\",
" .,\\##)))*.)",
" )**&,,,,, )",
" ),,.\\&#,,. ,,,, ",
" \\,#,,,,,,,,&@ ,,#",
" *.,,,,,,%.&..,@",
" &..*,,,,,#,&,&\\",
" %.,,,,,,.,,,.,,,,",
" .&\\& ,.,,,,,,&",
" @...@@*@@...@@*@@@",
" @.....@@@.....@**@",
" @@@........@@***@",
" @@@@@****@@.@@",
" @********@@@",
" @@********@",
" @**********@",
" @@@***@@***@",
" @....@@@...@",
" @@@@*@@...@",
" @****@ @...@@",
" @****@ @@@@@@",
" @******@@"
}
};
/* usage - print usage message and exit
* exit_code: Integer exit code value (0 success, 1 error, ...)
*
* Returns: void (exits program on run)
*/
void usage(const int exit_code) {
printf( "\nUsage:\n ./chad_stride [flags]\n\nFlags:\n"
" -s Chad stays still and doesn't move forever\n"
" -l Chad walks indefinitely\n"
" -r Chad walks backwards\n"
" -b SIZE Big Chad (each b increases chad)\n"
" -f Chad gives no fucks (ignores signals)\n"
" -a SLEEP_TIME Adjust sleep timer for chad\n"
" -c COLOR Chad strolls by in the color of your choice (r|g|b|m|c|y)\n"
" -m MESSAGE Display message under chad [capped at 50 characters]\n"
" -R Have Chad stroll with a rainbow effect\n"
" -p Have Chad flip when he hits the edge of the screen\n"
" -h Display this message\n\n");
exit(exit_code);
}
/* get_color_pair - Helper function to turn char to color value
* c: character input representing desired color
* pair: previous pair value
*
* returns: New color pair based on input
*/
int get_color_pair(char c, int pair){
switch (c){
case 'w':
return 1;
case 'b':
return 2;
case 'r':
return 3;
case 'g':
return 4;
case 'c':
return 5;
case 'y':
return 6;
case 'm':
return 7;
default:
return pair;
}
}
/*
* arg_to_long: converts char* to long
* arg: string (should be a number)
*
* returns: converted long from string
*/
long arg_to_long(char* arg) {
char* p_end;
long modifier = strtol(optarg, &p_end, 10);
if (p_end == optarg) {
fprintf(stderr, "Invalid digits for flag -b\n");
usage(1);
}
return modifier;
}
/*
* arg_to_long: enables flags set by user
* arg: main args
*
* returns: void
*/
void handle_args(int argc, char *argv[]) {
char c;
while ((c = getopt(argc, argv, ARG_FLAGS)) != -1) {
switch (c) {
case 's':
STAY = true;
break;
case 'l':
LOOP = true;
break;
case 'r':
REVERSE = true;
break;
case 'm':
{
MES = true;
size_t input_length = strlen(optarg);
if (input_length > MAX_MESSAGE_SIZE) {
fprintf(stderr, "Message size is capped at %d characters.\n", MAX_MESSAGE_SIZE);
}
input_length = input_length < MAX_MESSAGE_SIZE ? input_length : MAX_MESSAGE_SIZE;
message[MAX_MESSAGE_SIZE] = '\0';
strncpy(message, optarg, input_length);
break;
}
case 'b':
{
long modifier = arg_to_long(optarg);
if (modifier < 0) {
fprintf(stderr, "Error: invalid argument -b. Must be positive!\n");
}
SIZE += modifier;
break;
}
case 'f':
NOFUCKS = true;
break;
case 'a':
{
long modifier = arg_to_long(optarg);
if (modifier < 0) {
fprintf(stderr, "Error: Access flag isn't positive!\n");
}
SLEEP_TIMER = modifier;
break;
}
case 'R':
{
COLOR = true;
RAINBOW = true;
PAIR = 1;
break;
}
case 'c':
NORAINBOW = true;
COLOR = true;
/* check ascii char val a-z */
if (((unsigned char) *optarg) > 96 && ((unsigned char) *optarg) < 173) {
PAIR = get_color_pair(*optarg, PAIR);
} else {
fprintf(stderr, "Error: invalid color value. Must be (w|r|g|b|m|c|y)\n\n");
usage(1);
}
break;
case 'p':
FLIP = true;
break;
case 'h':
usage(0);
default:
usage(1);
}
if(NORAINBOW && RAINBOW){
fprintf(stderr, "Error: Cannot do rainbow and color simultaneously\n");
usage(1);
}
if(FLIP && LOOP){
fprintf(stderr, "Error: Cannot do loop and flip simultaneously\n");
usage(1);
}
}
}
int main(int argc, char *argv[]) {
handle_args(argc, argv);
int rainbowIterator = 1;
// set signals
if (NOFUCKS) {
signal(SIGHUP , SIG_IGN);
signal(SIGINT , SIG_IGN);
signal(SIGPIPE, SIG_IGN);
signal(SIGTERM, SIG_IGN);
signal(SIGTSTP, SIG_IGN);
}
/* ncurses stuff */
int col, row;
initscr();
/* start color if term supports it */
if (COLOR && has_colors()) start_color();
getmaxyx(stdscr, row, col); // stdscr is default screen
// center chad if stay is set
int x_pos = STAY ? (col / 2) - (AVG_CHAD_WIDTH / 2): 0;
int i = 0;
noecho();
curs_set(0);
nodelay(stdscr, 1);
leaveok(stdscr, 1);
scrollok(stdscr, 0);
/* initialize colors */
init_pair(1, COLOR_WHITE, COLOR_BLACK);
init_pair(2, COLOR_BLUE, COLOR_BLACK);
init_pair(3, COLOR_RED, COLOR_BLACK);
init_pair(4, COLOR_GREEN, COLOR_BLACK);
init_pair(5, COLOR_CYAN, COLOR_BLACK);
init_pair(6, COLOR_YELLOW, COLOR_BLACK);
init_pair(7, COLOR_MAGENTA, COLOR_BLACK);
/* loop until done */
int endpoint = col;
if (REVERSE) {
endpoint = 0;
x_pos = col;
}
while(x_pos != endpoint || LOOP || FLIP) {
// call this just in case resize of term
getmaxyx(stdscr, row, col);
/* set color */
attron(COLOR_PAIR(PAIR));
// check for wrap on loop
if(FLIP){
if(REVERSE && x_pos <= 0){
REVERSE = false;
} else if(x_pos + strlen(chad_frames[i % CHAD_FRAMES][1]) + 1 >= col) {
REVERSE = true;
}
} else if (REVERSE && x_pos <= 0) {
x_pos = col;
} else if (x_pos >= col) {
x_pos = 0;
}
if(!FLIP){
for (int j = 0; j < CHAD_ROWS; j++) {
// find position of furthest character to the right
int right_pos = x_pos + strlen(chad_frames[i % CHAD_FRAMES][j]);
// draw row, checking it doesn't go off screen if not looping
mvaddnstr(j * SIZE + row/2 - (CHAD_ROWS*SIZE/2), x_pos,
chad_frames[i % CHAD_FRAMES][j],
(right_pos > col && !LOOP) ? col - x_pos : right_pos);
}
} else if(!REVERSE) {
// Start going right
for (int j = 0; j < CHAD_ROWS; j++) {
// find position of furthest character to the right
int right_pos = x_pos + strlen(chad_frames[i % CHAD_FRAMES][j]);
// draw row, checking it doesn't go off screen if not looping
mvaddnstr(j * SIZE + row/2 - (CHAD_ROWS*SIZE/2), x_pos,
chad_frames[i % CHAD_FRAMES][j],
(right_pos > col && !LOOP && !FLIP) ? col - x_pos : right_pos);
}
} else {
// Start going left
for(int j = 0; j < CHAD_ROWS; j++){
// find position of furthest character to the right
int right_pos = x_pos + strlen(chad_frames_flip[i % CHAD_FRAMES][j]);
// draw row, checking it doesn't go off screen if not looping
mvaddnstr(j * SIZE + row/2 - (CHAD_ROWS*SIZE/2), x_pos,
chad_frames_flip[i % CHAD_FRAMES][j],
(right_pos > col && !LOOP && !FLIP) ? col + x_pos : right_pos);
}
}
i++; // increment animation counter
if (!STAY) {
if (REVERSE) {
x_pos--;
} else {
x_pos++; // move across screen
}
} else {
x_pos = (col / 2) - (AVG_CHAD_WIDTH / 2);
}
/* Ncurses stuff */
refresh();
/* display message */
if (MES) {
int mesg_x = x_pos + AVG_CHAD_WIDTH / 2 - (strlen(message) / 2);
int mesg_y = ((3 * row / 4) + (CHAD_ROWS * SIZE / 4));
if (mesg_x + strlen(message) >= col && !LOOP){
mvaddnstr(mesg_y, mesg_x, message, col - mesg_x);
} else if (mesg_x + strlen(message) >= col && LOOP) {
mvaddnstr(mesg_y, mesg_x, message, col - mesg_x);
mvaddnstr(mesg_y, 0, message + col - mesg_x, strlen(message) - col + mesg_x);
} else {
mvaddnstr(mesg_y, mesg_x, message, strlen(message));
}
}
/* Color stuff */
char c = getch();
if (COLOR && has_colors()){
PAIR = get_color_pair(c, PAIR);
}
if(RAINBOW && !NORAINBOW){
PAIR = rainbowIterator;
if(rainbowIterator < 7){
rainbowIterator++;
} else {
rainbowIterator = 1;
}
}
clear();
/* animation wait */
usleep(SLEEP_TIMER);
}
/* Clean up */
delwin(stdscr);
endwin();
refresh();
return 0;
}