CS256 - Fundamentals of Structured Programming

Displaying exercises/e9/solution/c4.c

#include "c.h"

/**
 * 1) Open the map.txt file for reading.  If you cannot open it, print that you
 *   are unable to and waitforkeypress() and then exit the program.
 * 2) Read the map one character at a time, process the map in such a way that
 *    each character is put on the curses screen like so:
 *    '#' -> a space w/ blue background
 *    '.' -> a space with white background
 *    '&' -> a '&' that is yellow on white and bold
 *    '+' -> a '+' that is yellow on white
 *    '%' -> a '%' that is red on white and bold
 *    's' -> a 's' that is white on blue
 *    anything else should be printed as is.
 * 3) Keep track of the number of lines printed (look for '\n' characters)
 *    and stop when you are at the last line of the screen.
 */
int main(void)
{
  init_curses();
  FILE *fp = fopen("map.txt", "r");
  if (fp == NULL) {
    mvprintw(10,10, "Unable to open map.txt");
    mvprintw(LINES-1, 0, "Press any key to exit");
    getch();
    leave_curses();
    return 0;
  }
  clear();

  int ch, line;
  move(0,0);
  while((ch = fgetc(fp)) != EOF) {
    if (ch == '\n') {
      line++;
      if (line == LINES-1) break;
    }
    if (ch == '#') addch(' '| COLOR_PAIR(COLOR_BLUE));
    else if (ch == '.') addch(' '| COLOR_PAIR(COLOR_WHITE));
    else if (ch == '&') addch('&'| COLOR_PAIR(COLOR_YELLOW*8+COLOR_WHITE)|A_BOLD);
    else if (ch == '+') addch('+'| COLOR_PAIR(COLOR_YELLOW*8+COLOR_WHITE));
    else if (ch == '%') addch('%'| COLOR_PAIR(COLOR_RED*8+COLOR_WHITE)|A_BOLD);
    else if (ch == 's') addch('s'| COLOR_PAIR(COLOR_WHITE*8+COLOR_BLUE));
    else addch(ch);
  }

  fclose(fp);

  mvprintw(LINES-1, 0, "Press any key to exit");
  getch();
  leave_curses();
  return 0;
}