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Placed all of the logic in to a header file so that it can be included

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inside other applications.

	modified:   src/nms.c
	copied:     src/nms.c -> src/nms.h
This commit is contained in:
Brian Barto 2016-04-12 16:18:53 -04:00
parent ad7fa569bb
commit 3f2b28a352
2 changed files with 251 additions and 215 deletions
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219
src/nms.c
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@ -1,224 +1,13 @@
#include <sys/ioctl.h>
#include <stdio.h> #include <stdio.h>
#include <string.h> #include "nms.h"
#include <stdlib.h>
#include <unistd.h>
#include <ctype.h>
#include <stdbool.h>
#include <time.h>
#define SPACE 32
#define NEWLINE 10
#define TAB 9
#define KNRM "\x1B[0m"
#define KMAG "\x1B[35m"
#define KCYN "\x1B[36m"
struct winpos {
char source;
char mask;
int row;
int col;
int s1_time;
int s2_time;
struct winpos *next;
};
int getTermSizeRows(void);
int getTermSizeCols(void);
void clearTermWindow(int, int);
char getMaskChar(void);
int main(void) { int main(void) {
struct winpos *list_pointer = NULL;
struct winpos *start; // Always points to start of list
struct winpos *temp; // Used for free()ing the list
int termSizeRows = getTermSizeRows();
int termSizeCols = getTermSizeCols();
int c, x = 1, y = 1;
int r_time, r_time_l, r_time_s;
int ms, ls;
bool first = true;
// Seed my random number generator with the current time
srand(time(NULL));
// Geting input // Geting input
int c;
while ((c = getchar()) != EOF) { while ((c = getchar()) != EOF) {
if (c == NEWLINE) { nmsprintf("%c", c);
++y;
x = 1;
} else if (c == TAB && x + 4 <= termSizeCols) {
x += 4;
} else if (isspace(c)) {
if (++x > termSizeCols) {
++y;
x = 1;
} }
} else { nmsexec();
if (first) {
list_pointer = malloc(sizeof(struct winpos));
start = list_pointer;
first = false;
} else {
list_pointer->next = malloc(sizeof(struct winpos));
list_pointer = list_pointer->next;
}
r_time = rand() % 50;
r_time_s = r_time * .25;
r_time_l = r_time * .75;
r_time *= 100;
r_time_s *= 100;
r_time_l *= 100;
list_pointer->source = c;
list_pointer->mask = getMaskChar();
list_pointer->row = y;
list_pointer->col = x;
list_pointer->s1_time = r_time > 1000 ? r_time_l : r_time;
list_pointer->s2_time = r_time > 1000 ? r_time_s : 0;
list_pointer->next = NULL;
if (++x > termSizeCols) {
++y;
x = 1;
}
}
}
clearTermWindow(termSizeRows, termSizeCols);
// Initially display the characters in the terminal with a 'type effect'.
ms = 5; // miliseconds, used for usleep()
list_pointer = start;
while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
list_pointer->mask = getMaskChar();
list_pointer = list_pointer->next;
fflush(stdout);
usleep(ms * 1000);
}
// TODO: pause with getchar() - something about the input stream being redirected
// to a file is causing getchar() to immediately return here.
sleep(1);
// Jumble loop
ms = 35; // miliseconds, used for usleep()
ls = 2; // loop seconds, number of seconds to loop
x = 0;
while (x < (ls * 1000) / ms) {
list_pointer = start;
while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
list_pointer->mask = getMaskChar();
list_pointer = list_pointer->next;
}
fflush(stdout);
usleep(ms * 1000);
++x;
}
// Reveal loop
ms = 100; // miliseconds to sleep (must always evenly divisible by 5)
int s1_remask_time = 500; // time, in milliseconds, we change the mask for stage 1
bool loop = true;
while (loop) {
loop = false;
list_pointer = start;
while (list_pointer != NULL && list_pointer->row <= termSizeRows) {
if (list_pointer->s1_time > 0) {
loop = true;
list_pointer->s1_time -= ms;
if (list_pointer->s1_time % s1_remask_time == 0) {
list_pointer->mask = getMaskChar();
}
} else if (list_pointer->s2_time > 0) {
loop = true;
list_pointer->s2_time -= ms;
list_pointer->mask = getMaskChar();
} else {
list_pointer->mask = list_pointer->source;
printf(KCYN);
}
printf("\033[%i;%iH%c", list_pointer->row, list_pointer->col, list_pointer->mask);
printf(KNRM);
list_pointer = list_pointer->next;
}
fflush(stdout);
usleep(ms * 1000);
}
printf("\n");
// Printing remaining characters from list if we stopped short due to
// a terminal row limitation. i.e. the number of textual rows in the input
// stream were greater than the number of rows in the terminal.
int prevRow;
if (list_pointer != NULL) {
prevRow = list_pointer->row;
printf(KCYN);
while (list_pointer != NULL) {
while (list_pointer->row > prevRow) {
printf("\n");
++prevRow;
}
printf("\033[%i;%iH%c", termSizeRows, list_pointer->col, list_pointer->source);
list_pointer = list_pointer->next;
}
printf(KNRM);
printf("\n");
}
// Freeing the list.
list_pointer = start;
while (list_pointer != NULL) {
temp = list_pointer;
list_pointer = list_pointer->next;
free(temp);
}
return 0; return 0;
} }
int getTermSizeRows(void) {
struct winsize w;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
return w.ws_row;
}
int getTermSizeCols(void) {
struct winsize w;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
return w.ws_col;
}
void clearTermWindow(int pRows, int pCols) {
int row, col;
// Clearing window
for (row = 1; row <= pRows; ++row) {
for (col = 1; col <= pCols; ++col)
printf("\033[%i;%iH%c", row, col, SPACE);
printf("\033[%i;%iH%c", row, col, NEWLINE);
}
// Position cursor at the top
printf("\033[%i;%iH", 1, 1);
}
char getMaskChar(void) {
char *maskChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"1234567890"
"!@#$%^&*()-_=+{}[]:;|\\\"'<>,.?/";
return maskChars[rand() % strlen(maskChars)];
}

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