--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rogue4/io.c	Sat Oct 24 16:52:52 2009 +0000
@@ -0,0 +1,253 @@
+/*
+ * Various input/output functions
+ *
+ * @(#)io.c	4.13 (Berkeley) 2/25/82
+ *
+ * Rogue: Exploring the Dungeons of Doom
+ * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
+ * All rights reserved.
+ *
+ * See the file LICENSE.TXT for full copyright and licensing information.
+ */
+
+#include <curses.h>
+#include <ctype.h>
+#include <string.h>
+#include "rogue.h"
+#include <stdarg.h>
+
+/*
+ * msg:
+ *	Display a message at the top of the screen.
+ */
+static char msgbuf[BUFSIZ];
+static int newpos = 0;
+
+msg(char *fmt, ...)
+{
+    va_list ap;
+    /*
+     * if the string is "", just clear the line
+     */
+    if (*fmt == '\0')
+    {
+	move(0, 0);
+	clrtoeol();
+	mpos = 0;
+	return;
+    }
+    /*
+     * otherwise add to the message and flush it out
+     */
+    va_start(ap,fmt);
+    doadd(fmt, ap);
+    va_end(ap);
+    endmsg();
+}
+
+/*
+ * addmsg:
+ *	Add things to the current message
+ */
+
+addmsg(char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    doadd(fmt, ap);
+    va_end(ap);
+}
+
+/*
+ * endmsg:
+ *	Display a new msg (giving him a chance to see the previous one
+ *	if it is up there with the --More--)
+ */
+
+endmsg()
+{
+    if (save_msg)
+    {
+	strncpy(huh, msgbuf, 80);
+	huh[79] = 0;
+    }
+
+    if (mpos)
+    {
+	look(FALSE);
+	move(0, mpos);
+	addstr("--More--");
+	refresh();
+	wait_for(' ');
+    }
+    /*
+     * All messages should start with uppercase, except ones that
+     * start with a pack addressing character
+     */
+    if (islower(msgbuf[0]) && msgbuf[1] != ')')
+	msgbuf[0] = toupper(msgbuf[0]);
+    mvaddstr(0, 0, msgbuf);
+    clrtoeol();
+    mpos = newpos;
+    newpos = 0;
+    refresh();
+}
+
+/*
+ * doadd:
+ *	Perform an add onto the message buffer
+ */
+
+doadd(char *fmt, va_list ap)
+{
+    vsprintf(&msgbuf[newpos], fmt, ap);
+    newpos = strlen(msgbuf);
+}
+
+/*
+ * step_ok:
+ *	Returns true if it is ok to step on ch
+ */
+step_ok(ch)
+{
+    switch (ch)
+    {
+	case ' ':
+	case '|':
+	case '-':
+	    return FALSE;
+	default:
+	    return (!isalpha(ch));
+    }
+}
+
+/*
+ * readchar:
+ *	Flushes stdout so that screen is up to date and then returns
+ *	getchar().
+ */
+readcharw(win)
+WINDOW *win;
+{
+    int ch;
+
+    ch = md_readchar(win);
+
+    if ((ch == 3) || (ch == 0))
+    {
+	quit(0);
+	return(27);
+    }
+
+    return(ch);
+}
+
+readchar()
+{
+    return( readcharw(stdscr) );
+}
+
+char *
+unctrol(ch)
+char ch;
+{
+    return( (char *) unctrl(ch) );
+}
+
+/*
+ * status:
+ *	Display the important stats line.  Keep the cursor where it was.
+ */
+status()
+{
+    register int oy, ox, temp;
+    static int hpwidth = 0, s_hungry;
+    static int s_lvl, s_pur = -1, s_hp, s_ac = 0;
+    static str_t s_str;
+    static long s_exp = 0;
+    static char *state_name[] =
+    {
+	"", "Hungry", "Weak", "Faint"
+    };
+
+    /*
+     * If nothing has changed since the last status, don't
+     * bother.
+     */
+    if (s_hp == pstats.s_hpt && s_exp == pstats.s_exp && s_pur == purse
+	&& s_ac == (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm)
+	&& s_str == pstats.s_str && s_lvl == level && s_hungry == hungry_state)
+	    return;
+	
+    getyx(stdscr, oy, ox);
+    if (s_hp != max_hp)
+    {
+	temp = s_hp = max_hp;
+	for (hpwidth = 0; temp; hpwidth++)
+	    temp /= 10;
+    }
+    move(LINES - 1, 0);
+    printw("Level: %d  Gold: %-5d  Hp: %*d(%*d)  Str: %2d(%d)  Ac: %-2d  Exp: %d/%ld  %s",
+	    level, purse, hpwidth, pstats.s_hpt, hpwidth, max_hp, pstats.s_str,
+	    max_stats.s_str,
+	    cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm, pstats.s_lvl,
+	    pstats.s_exp, state_name[hungry_state]);
+
+    clrtoeol();
+    /*
+     * Save old status
+     */
+    s_lvl = level;
+    s_pur = purse;
+    s_hp = pstats.s_hpt;
+    s_str = pstats.s_str;
+    s_exp = pstats.s_exp; 
+    s_ac = (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm);
+    s_hungry = hungry_state;
+    move(oy, ox);
+}
+
+/*
+ * wait_for
+ *	Sit around until the guy types the right key
+ */
+
+
+
+wait_for(ch)
+register char ch;
+{
+    w_wait_for(stdscr, ch);
+}
+
+w_wait_for(win,ch)
+WINDOW *win;
+register char ch;
+{
+    register char c;
+
+    if (ch == '\n')
+        while ((c = readcharw(win)) != '\n' && c != '\r')
+	    continue;
+    else
+        while (readcharw(win) != ch)
+	    continue;
+}
+
+/*
+ * show_win:
+ *	Function used to display a window and wait before returning
+ */
+show_win(scr, message)
+register WINDOW *scr;
+char *message;
+{
+    mvwaddstr(scr, 0, 0, message);
+    touchwin(scr);
+    wmove(scr, hero.y, hero.x);
+    wrefresh(scr);
+    w_wait_for(scr,' ');
+    clearok(curscr, TRUE);
+    touchwin(stdscr);
+}