--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rogue3/io.c	Tue Oct 13 13:33:34 2009 +0000
@@ -0,0 +1,248 @@
+/*
+ * Various input/output functions
+ *
+ * @(#)io.c	3.10 (Berkeley) 6/15/81
+ *
+ * Rogue: Exploring the Dungeons of Doom
+ * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
+ * All rights reserved.
+ *
+ * See the file LICENSE.TXT for full copyright and licensing information.
+ */
+
+#include <stdlib.h>
+#include "curses.h"
+#include <ctype.h>
+#include <stdarg.h>
+#include <string.h>
+#include "machdep.h"
+#include "rogue.h"
+
+/*
+ * msg:
+ *	Display a message at the top of the screen.
+ */
+
+static char msgbuf[BUFSIZ];
+static int newpos = 0;
+
+/*VARARGS1*/
+void
+msg(char *fmt, ...)
+{
+    va_list ap;
+    /*
+     * if the string is "", just clear the line
+     */
+    if (*fmt == '\0')
+    {
+	wmove(cw, 0, 0);
+	wclrtoeol(cw);
+	mpos = 0;
+	return;
+    }
+    /*
+     * otherwise add to the message and flush it out
+     */
+    va_start(ap, fmt);
+    doadd(fmt, ap);
+    va_end(ap);
+    endmsg();
+}
+
+/*
+ * add things to the current message
+ */
+void
+addmsg(char *fmt, ...)
+{
+    va_list ap;
+
+    va_start(ap, fmt);
+    doadd(fmt, ap);
+    va_end(ap);
+}
+
+/*
+ * Display a new msg (giving him a chance to see the previous one if it
+ * is up there with the --More--)
+ */
+void
+endmsg()
+{
+    strncpy(huh, msgbuf, 80);
+    huh[79] = 0;
+
+    if (mpos)
+    {
+	wmove(cw, 0, mpos);
+	waddstr(cw, "--More--");
+	draw(cw);
+	wait_for(cw,' ');
+    }
+    mvwaddstr(cw, 0, 0, msgbuf);
+    wclrtoeol(cw);
+    mpos = newpos;
+    newpos = 0;
+    draw(cw);
+}
+
+void
+doadd(char *fmt, va_list ap)
+{
+    vsprintf(&msgbuf[newpos], fmt, ap);
+    newpos = (int) strlen(msgbuf);
+}
+
+/*
+ * step_ok:
+ *	returns true if it is ok to step on ch
+ */
+
+int
+step_ok(int ch)
+{
+    switch (ch)
+    {
+	case ' ':
+	case '|':
+	case '-':
+	case SECRETDOOR:
+	    return FALSE;
+	default:
+	    return (!isalpha(ch));
+    }
+}
+
+/*
+ * readchar:
+ *	flushes stdout so that screen is up to date and then returns
+ *	getchar.
+ */
+
+int
+readchar(WINDOW *win)
+{
+    int ch;
+
+    ch = md_readchar(win);
+
+    if ((ch == 3) || (ch == 0))
+    {
+	quit(0);
+        return(27);
+    }
+
+    return(ch);
+}
+
+/*
+ * status:
+ *	Display the important stats line.  Keep the cursor where it was.
+ */
+
+void
+status()
+{
+    int oy, ox, temp;
+    char *pb;
+    static char buf[80];
+    static int hpwidth = 0, s_hungry = -1;
+    static int s_lvl = -1, s_pur, s_hp = -1, s_str, s_add, s_ac = 0;
+    static long s_exp = 0;
+
+    /*
+     * 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.st_str && s_add == pstats.s_str.st_add
+	&& s_lvl == level && s_hungry == hungry_state)
+	    return;
+	
+    getyx(cw, oy, ox);
+    if (s_hp != max_hp)
+    {
+	temp = s_hp = max_hp;
+	for (hpwidth = 0; temp; hpwidth++)
+	    temp /= 10;
+    }
+    sprintf(buf, "Level: %d  Gold: %-5d  Hp: %*d(%*d)  Str: %-2d",
+	level, purse, hpwidth, pstats.s_hpt, hpwidth, max_hp,
+	pstats.s_str.st_str);
+    if (pstats.s_str.st_add != 0)
+    {
+	pb = &buf[strlen(buf)];
+	sprintf(pb, "/%d", pstats.s_str.st_add);
+    }
+    pb = &buf[strlen(buf)];
+    sprintf(pb, "  Ac: %-2d  Exp: %d/%d",
+	cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm, pstats.s_lvl,
+	pstats.s_exp);
+    /*
+     * Save old status
+     */
+    s_lvl = level;
+    s_pur = purse;
+    s_hp = pstats.s_hpt;
+    s_str = pstats.s_str.st_str;
+    s_add = pstats.s_str.st_add;
+    s_exp = pstats.s_exp; 
+    s_ac = (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm);
+    mvwaddstr(cw, LINES - 1, 0, buf);
+    switch (hungry_state)
+    {
+	case 0: ;
+	when 1:
+	    waddstr(cw, "  Hungry");
+	when 2:
+	    waddstr(cw, "  Weak");
+	when 3:
+	    waddstr(cw, "  Fainting");
+    }
+    wclrtoeol(cw);
+    s_hungry = hungry_state;
+    wmove(cw, oy, ox);
+}
+
+/*
+ * wait_for
+ *	Sit around until the guy types the right key
+ */
+
+void
+wait_for(WINDOW *win, int ch)
+{
+    int c;
+
+    if (ch == '\n')
+        while ((c = readchar(win)) != '\n' && c != '\r')
+	    continue;
+    else
+        while (readchar(win) != ch)
+	    continue;
+}
+
+/*
+ * show_win:
+ *	function used to display a window and wait before returning
+ */
+
+void
+show_win(WINDOW *scr, char *message)
+{
+    mvwaddstr(scr, 0, 0, message);
+    touchwin(scr);
+    wmove(scr, hero.y, hero.x);
+    draw(scr);
+    wait_for(scr,' ');
+    clearok(cw, TRUE);
+    touchwin(cw);
+}
+
+void
+flush_type()
+{
+	flushinp();
+}