Lösung zu Blatt 3 (Aufgabe 3): gbuser.h + gbuser.c

gbuser.h

/*
 *      gbuser.h        - Headerfile for Gobang keyboard interface.
 */

typedef enum {
        GBU_QUIT,                                       /* quit game */
        GBU_LEFT, GBU_DOWN, GBU_UP, GBU_RIGHT,          /* cursor motion */
        GBU_REDRAW,                                     /* redraw screen */
        GBU_MOVE,                                       /* make a move */
        GBU_PASS,                                       /* make a pass */
        GBU_ERASE } Command;                            /* erase a stone */

/*
 *      Read a command from stdin.
 */
Command gb_getcommand(void);

gbuser.c

/*
 *      gbuser.c        - Gobang keyboard interface.
 */

#include        <curses.h>
#include        "gbuser.h"

/*
 *      Read a command from stdin.
 */
Command gb_getcommand(void)
{
        int ch;

        for (;;) {
                switch ( (ch = getch()) ) {
                case 'q':
                case ERR:
                        return GBU_QUIT;
                case 'h':
                case KEY_LEFT:
                        return GBU_LEFT;
                case 'j':
                case KEY_DOWN:
                        return GBU_DOWN;
                case 'k':
                case KEY_UP:
                        return GBU_UP;
                case 'l':
                case KEY_RIGHT:
                        return GBU_RIGHT;
                case 'r':
                case '\f':
                        return GBU_REDRAW;
                case 's':
                case '\n':
                case KEY_ENTER:
                        return GBU_MOVE;
                case 'p':
                case ' ':
                        return GBU_PASS;
                case 'x':
                case KEY_BACKSPACE:
                        return GBU_ERASE;
                default:
                        (void) flash();
                }
        }
        /* NOTREACHED */
}