Placed all of the logic in to a header file so that it can be included
inside other applications. modified: src/nms.c copied: src/nms.c -> src/nms.h
This commit is contained in:
Brian Barto
parent
ad7fa569bb
commit
3f2b28a352
219
src/nms.c
219
src/nms.c
@ -1,224 +1,13 @@
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#include <sys/ioctl.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <stdbool.h>
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#include <time.h>
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#define SPACE 32
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#define NEWLINE 10
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#define TAB 9
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#define KNRM "\x1B[0m"
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#define KMAG "\x1B[35m"
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#define KCYN "\x1B[36m"
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struct winpos {
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char source;
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char mask;
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int row;
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int col;
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int s1_time;
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int s2_time;
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struct winpos *next;
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};
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int getTermSizeRows(void);
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int getTermSizeCols(void);
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void clearTermWindow(int, int);
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char getMaskChar(void);
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#include "nms.h"
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int main(void) {
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struct winpos *list_pointer = NULL;
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struct winpos *start; // Always points to start of list
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struct winpos *temp; // Used for free()ing the list
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int termSizeRows = getTermSizeRows();
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int termSizeCols = getTermSizeCols();
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int c, x = 1, y = 1;
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int r_time, r_time_l, r_time_s;
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int ms, ls;
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bool first = true;
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// Seed my random number generator with the current time
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srand(time(NULL));
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// Geting input
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int c;
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while ((c = getchar()) != EOF) {
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if (c == NEWLINE) {
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++y;
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x = 1;
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} else if (c == TAB && x + 4 <= termSizeCols) {
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x += 4;
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} else if (isspace(c)) {
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if (++x > termSizeCols) {
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++y;
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x = 1;
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}
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} else {
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if (first) {
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list_pointer = malloc(sizeof(struct winpos));
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start = list_pointer;
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first = false;
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} else {
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list_pointer->next = malloc(sizeof(struct winpos));
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list_pointer = list_pointer->next;
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}
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r_time = rand() % 50;
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r_time_s = r_time * .25;
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r_time_l = r_time * .75;
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r_time *= 100;
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r_time_s *= 100;
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r_time_l *= 100;
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list_pointer->source = c;
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list_pointer->mask = getMaskChar();
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list_pointer->row = y;
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list_pointer->col = x;
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list_pointer->s1_time = r_time > 1000 ? r_time_l : r_time;
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list_pointer->s2_time = r_time > 1000 ? r_time_s : 0;
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list_pointer->next = NULL;
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if (++x > termSizeCols) {
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++y;
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x = 1;
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}
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}
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nmsprintf("%c", c);
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}
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clearTermWindow(termSizeRows, termSizeCols);
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// Initially display the characters in the terminal with a 'type effect'.
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ms = 5; // miliseconds, used for usleep()
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list_pointer = start;
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while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
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printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
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list_pointer->mask = getMaskChar();
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list_pointer = list_pointer->next;
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fflush(stdout);
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usleep(ms * 1000);
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}
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// TODO: pause with getchar() - something about the input stream being redirected
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// to a file is causing getchar() to immediately return here.
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sleep(1);
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// Jumble loop
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ms = 35; // miliseconds, used for usleep()
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ls = 2; // loop seconds, number of seconds to loop
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x = 0;
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while (x < (ls * 1000) / ms) {
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list_pointer = start;
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while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
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printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
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list_pointer->mask = getMaskChar();
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list_pointer = list_pointer->next;
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}
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fflush(stdout);
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usleep(ms * 1000);
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++x;
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}
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// Reveal loop
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ms = 100; // miliseconds to sleep (must always evenly divisible by 5)
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int s1_remask_time = 500; // time, in milliseconds, we change the mask for stage 1
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bool loop = true;
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while (loop) {
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loop = false;
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list_pointer = start;
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while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
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if (list_pointer->s1_time > 0) {
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loop = true;
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list_pointer->s1_time -= ms;
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if (list_pointer->s1_time % s1_remask_time == 0) {
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list_pointer->mask = getMaskChar();
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}
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} else if (list_pointer->s2_time > 0) {
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loop = true;
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list_pointer->s2_time -= ms;
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list_pointer->mask = getMaskChar();
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} else {
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list_pointer->mask = list_pointer->source;
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printf(KCYN);
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}
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printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
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printf(KNRM);
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list_pointer = list_pointer->next;
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}
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fflush(stdout);
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usleep(ms * 1000);
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}
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printf("\n");
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// Printing remaining characters from list if we stopped short due to
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// a terminal row limitation. i.e. the number of textual rows in the input
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// stream were greater than the number of rows in the terminal.
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int prevRow;
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if (list_pointer != NULL) {
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prevRow = list_pointer->row;
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printf(KCYN);
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while (list_pointer != NULL) {
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while (list_pointer->row > prevRow) {
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printf("\n");
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++prevRow;
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}
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printf("\033[%i;%iH%c", termSizeRows, list_pointer->col, list_pointer->source);
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list_pointer = list_pointer->next;
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}
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printf(KNRM);
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printf("\n");
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}
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// Freeing the list.
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list_pointer = start;
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while (list_pointer != NULL) {
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temp = list_pointer;
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list_pointer = list_pointer->next;
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free(temp);
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}
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nmsexec();
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return 0;
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}
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int getTermSizeRows(void) {
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struct winsize w;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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return w.ws_row;
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}
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int getTermSizeCols(void) {
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struct winsize w;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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return w.ws_col;
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}
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void clearTermWindow(int pRows, int pCols) {
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int row, col;
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// Clearing window
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for (row = 1; row <= pRows; ++row) {
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for (col = 1; col <= pCols; ++col)
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printf("\033[%i;%iH%c", row, col, SPACE);
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printf("\033[%i;%iH%c", row, col, NEWLINE);
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}
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// Position cursor at the top
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printf("\033[%i;%iH", 1, 1);
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}
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char getMaskChar(void) {
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char *maskChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz"
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"1234567890"
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"!@#$%^&*()-_=+{}[]:;|\\\"'<>,.?/";
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return maskChars[rand() % strlen(maskChars)];
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}
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247
src/nms.h
Normal file
247
src/nms.h
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@ -0,0 +1,247 @@
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#include <sys/ioctl.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <stdbool.h>
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#include <time.h>
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#include <stdarg.h>
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#define SPACE 32
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#define NEWLINE 10
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#define TAB 9
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#define KNRM "\x1B[0m"
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#define KMAG "\x1B[35m"
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#define KCYN "\x1B[36m"
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struct winpos {
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char source;
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char mask;
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int row;
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int col;
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int s1_time;
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int s2_time;
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struct winpos *next;
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};
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char nmsprintBuffer[10000];
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char *display = NULL;
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int getTermSizeRows(void);
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int getTermSizeCols(void);
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void clearTermWindow(int, int);
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char getMaskChar(void);
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void nmsexec(void);
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void nmsprintf(const char *, ...);
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void nmsprintf(const char *format, ...) {
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va_list argp;
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va_start(argp, format);
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vsprintf(nmsprintBuffer, format, argp);
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va_end(argp);
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if (display == NULL) {
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display = malloc(strlen(nmsprintBuffer) + 1);
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strcpy(display, nmsprintBuffer);
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} else {
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display = realloc(display, strlen(display) + strlen(nmsprintBuffer) + 1);
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strcat(display, nmsprintBuffer);
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}
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}
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void nmsexec(void) {
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struct winpos *list_pointer = NULL;
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struct winpos *start; // Always points to start of list
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struct winpos *temp; // Used for free()ing the list
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int termSizeRows = getTermSizeRows();
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int termSizeCols = getTermSizeCols();
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int c, n, x = 1, y = 1;
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int r_time, r_time_l, r_time_s;
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int ms, ls;
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bool first = true;
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// Seed my random number generator with the current time
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srand(time(NULL));
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// Geting input
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n = 0;
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while ((c = display[n++]) != '\0') {
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if (c == NEWLINE) {
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++y;
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x = 1;
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} else if (c == TAB && x + 4 <= termSizeCols) {
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x += 4;
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} else if (isspace(c)) {
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if (++x > termSizeCols) {
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++y;
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x = 1;
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}
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} else {
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if (first) {
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list_pointer = malloc(sizeof(struct winpos));
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start = list_pointer;
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first = false;
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} else {
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list_pointer->next = malloc(sizeof(struct winpos));
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list_pointer = list_pointer->next;
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}
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r_time = rand() % 50;
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r_time_s = r_time * .25;
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r_time_l = r_time * .75;
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r_time *= 100;
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r_time_s *= 100;
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r_time_l *= 100;
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list_pointer->source = c;
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list_pointer->mask = getMaskChar();
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list_pointer->row = y;
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list_pointer->col = x;
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list_pointer->s1_time = r_time > 1000 ? r_time_l : r_time;
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list_pointer->s2_time = r_time > 1000 ? r_time_s : 0;
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list_pointer->next = NULL;
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if (++x > termSizeCols) {
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++y;
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x = 1;
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}
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}
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}
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// Freeing the display chharacter array
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free(display);
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clearTermWindow(termSizeRows, termSizeCols);
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// Initially display the characters in the terminal with a 'type effect'.
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ms = 5; // miliseconds, used for usleep()
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list_pointer = start;
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while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
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printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
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list_pointer->mask = getMaskChar();
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list_pointer = list_pointer->next;
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fflush(stdout);
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usleep(ms * 1000);
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}
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// TODO: pause with getchar() - something about the input stream being redirected
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// to a file is causing getchar() to immediately return here.
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sleep(1);
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// Jumble loop
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ms = 35; // miliseconds, used for usleep()
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ls = 2; // loop seconds, number of seconds to loop
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x = 0;
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while (x < (ls * 1000) / ms) {
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list_pointer = start;
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while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
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printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
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list_pointer->mask = getMaskChar();
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list_pointer = list_pointer->next;
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}
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fflush(stdout);
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usleep(ms * 1000);
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++x;
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}
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// Reveal loop
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ms = 100; // miliseconds to sleep (must always evenly divisible by 5)
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int s1_remask_time = 500; // time, in milliseconds, we change the mask for stage 1
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bool loop = true;
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while (loop) {
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loop = false;
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list_pointer = start;
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while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
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if (list_pointer->s1_time > 0) {
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loop = true;
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list_pointer->s1_time -= ms;
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if (list_pointer->s1_time % s1_remask_time == 0) {
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list_pointer->mask = getMaskChar();
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}
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} else if (list_pointer->s2_time > 0) {
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loop = true;
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list_pointer->s2_time -= ms;
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list_pointer->mask = getMaskChar();
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} else {
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list_pointer->mask = list_pointer->source;
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printf(KCYN);
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}
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printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
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printf(KNRM);
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list_pointer = list_pointer->next;
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}
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fflush(stdout);
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usleep(ms * 1000);
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}
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printf("\n");
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// Printing remaining characters from list if we stopped short due to
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// a terminal row limitation. i.e. the number of textual rows in the input
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// stream were greater than the number of rows in the terminal.
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int prevRow;
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if (list_pointer != NULL) {
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prevRow = list_pointer->row;
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printf(KCYN);
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while (list_pointer != NULL) {
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while (list_pointer->row > prevRow) {
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printf("\n");
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++prevRow;
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}
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printf("\033[%i;%iH%c", termSizeRows, list_pointer->col, list_pointer->source);
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list_pointer = list_pointer->next;
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}
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printf(KNRM);
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printf("\n");
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}
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// Freeing the list.
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list_pointer = start;
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while (list_pointer != NULL) {
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temp = list_pointer;
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list_pointer = list_pointer->next;
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free(temp);
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}
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}
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int getTermSizeRows(void) {
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struct winsize w;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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return w.ws_row;
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}
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int getTermSizeCols(void) {
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struct winsize w;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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return w.ws_col;
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}
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void clearTermWindow(int pRows, int pCols) {
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int row, col;
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// Clearing window
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for (row = 1; row <= pRows; ++row) {
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for (col = 1; col <= pCols; ++col)
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printf("\033[%i;%iH%c", row, col, SPACE);
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printf("\033[%i;%iH%c", row, col, NEWLINE);
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}
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// Position cursor at the top
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printf("\033[%i;%iH", 1, 1);
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}
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char getMaskChar(void) {
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char *maskChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
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"abcdefghijklmnopqrstuvwxyz"
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"1234567890"
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"!@#$%^&*()-_=+{}[]:;|\\\"'<>,.?/";
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return maskChars[rand() % strlen(maskChars)];
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}
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