Annotation of early-roguelike/rogue3/io.c, Revision 1.1
1.1 ! rubenllo 1: /*
! 2: * Various input/output functions
! 3: *
! 4: * @(#)io.c 3.10 (Berkeley) 6/15/81
! 5: *
! 6: * Rogue: Exploring the Dungeons of Doom
! 7: * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
! 8: * All rights reserved.
! 9: *
! 10: * See the file LICENSE.TXT for full copyright and licensing information.
! 11: */
! 12:
! 13: #include <stdlib.h>
! 14: #include "curses.h"
! 15: #include <ctype.h>
! 16: #include <stdarg.h>
! 17: #include <string.h>
! 18: #include "machdep.h"
! 19: #include "rogue.h"
! 20:
! 21: /*
! 22: * msg:
! 23: * Display a message at the top of the screen.
! 24: */
! 25:
! 26: static char msgbuf[BUFSIZ];
! 27: static int newpos = 0;
! 28:
! 29: /*VARARGS1*/
! 30: void
! 31: msg(char *fmt, ...)
! 32: {
! 33: va_list ap;
! 34: /*
! 35: * if the string is "", just clear the line
! 36: */
! 37: if (*fmt == '\0')
! 38: {
! 39: wmove(cw, 0, 0);
! 40: wclrtoeol(cw);
! 41: mpos = 0;
! 42: return;
! 43: }
! 44: /*
! 45: * otherwise add to the message and flush it out
! 46: */
! 47: va_start(ap, fmt);
! 48: doadd(fmt, ap);
! 49: va_end(ap);
! 50: endmsg();
! 51: }
! 52:
! 53: /*
! 54: * add things to the current message
! 55: */
! 56: void
! 57: addmsg(char *fmt, ...)
! 58: {
! 59: va_list ap;
! 60:
! 61: va_start(ap, fmt);
! 62: doadd(fmt, ap);
! 63: va_end(ap);
! 64: }
! 65:
! 66: /*
! 67: * Display a new msg (giving him a chance to see the previous one if it
! 68: * is up there with the --More--)
! 69: */
! 70: void
! 71: endmsg()
! 72: {
! 73: strncpy(huh, msgbuf, 80);
! 74: huh[79] = 0;
! 75:
! 76: if (mpos)
! 77: {
! 78: wmove(cw, 0, mpos);
! 79: waddstr(cw, "--More--");
! 80: draw(cw);
! 81: wait_for(cw,' ');
! 82: }
! 83: mvwaddstr(cw, 0, 0, msgbuf);
! 84: wclrtoeol(cw);
! 85: mpos = newpos;
! 86: newpos = 0;
! 87: draw(cw);
! 88: }
! 89:
! 90: void
! 91: doadd(char *fmt, va_list ap)
! 92: {
! 93: vsprintf(&msgbuf[newpos], fmt, ap);
! 94: newpos = (int) strlen(msgbuf);
! 95: }
! 96:
! 97: /*
! 98: * step_ok:
! 99: * returns true if it is ok to step on ch
! 100: */
! 101:
! 102: int
! 103: step_ok(int ch)
! 104: {
! 105: switch (ch)
! 106: {
! 107: case ' ':
! 108: case '|':
! 109: case '-':
! 110: case SECRETDOOR:
! 111: return FALSE;
! 112: default:
! 113: return (!isalpha(ch));
! 114: }
! 115: }
! 116:
! 117: /*
! 118: * readchar:
! 119: * flushes stdout so that screen is up to date and then returns
! 120: * getchar.
! 121: */
! 122:
! 123: int
! 124: readchar(WINDOW *win)
! 125: {
! 126: int ch;
! 127:
! 128: ch = md_readchar(win);
! 129:
! 130: if ((ch == 3) || (ch == 0))
! 131: {
! 132: quit(0);
! 133: return(27);
! 134: }
! 135:
! 136: return(ch);
! 137: }
! 138:
! 139: /*
! 140: * status:
! 141: * Display the important stats line. Keep the cursor where it was.
! 142: */
! 143:
! 144: void
! 145: status()
! 146: {
! 147: int oy, ox, temp;
! 148: char *pb;
! 149: static char buf[80];
! 150: static int hpwidth = 0, s_hungry = -1;
! 151: static int s_lvl = -1, s_pur, s_hp = -1, s_str, s_add, s_ac = 0;
! 152: static long s_exp = 0;
! 153:
! 154: /*
! 155: * If nothing has changed since the last status, don't
! 156: * bother.
! 157: */
! 158: if (s_hp == pstats.s_hpt && s_exp == pstats.s_exp && s_pur == purse
! 159: && s_ac == (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm)
! 160: && s_str == pstats.s_str.st_str && s_add == pstats.s_str.st_add
! 161: && s_lvl == level && s_hungry == hungry_state)
! 162: return;
! 163:
! 164: getyx(cw, oy, ox);
! 165: if (s_hp != max_hp)
! 166: {
! 167: temp = s_hp = max_hp;
! 168: for (hpwidth = 0; temp; hpwidth++)
! 169: temp /= 10;
! 170: }
! 171: sprintf(buf, "Level: %d Gold: %-5d Hp: %*d(%*d) Str: %-2d",
! 172: level, purse, hpwidth, pstats.s_hpt, hpwidth, max_hp,
! 173: pstats.s_str.st_str);
! 174: if (pstats.s_str.st_add != 0)
! 175: {
! 176: pb = &buf[strlen(buf)];
! 177: sprintf(pb, "/%d", pstats.s_str.st_add);
! 178: }
! 179: pb = &buf[strlen(buf)];
! 180: sprintf(pb, " Ac: %-2d Exp: %d/%d",
! 181: cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm, pstats.s_lvl,
! 182: pstats.s_exp);
! 183: /*
! 184: * Save old status
! 185: */
! 186: s_lvl = level;
! 187: s_pur = purse;
! 188: s_hp = pstats.s_hpt;
! 189: s_str = pstats.s_str.st_str;
! 190: s_add = pstats.s_str.st_add;
! 191: s_exp = pstats.s_exp;
! 192: s_ac = (cur_armor != NULL ? cur_armor->o_ac : pstats.s_arm);
! 193: mvwaddstr(cw, LINES - 1, 0, buf);
! 194: switch (hungry_state)
! 195: {
! 196: case 0: ;
! 197: when 1:
! 198: waddstr(cw, " Hungry");
! 199: when 2:
! 200: waddstr(cw, " Weak");
! 201: when 3:
! 202: waddstr(cw, " Fainting");
! 203: }
! 204: wclrtoeol(cw);
! 205: s_hungry = hungry_state;
! 206: wmove(cw, oy, ox);
! 207: }
! 208:
! 209: /*
! 210: * wait_for
! 211: * Sit around until the guy types the right key
! 212: */
! 213:
! 214: void
! 215: wait_for(WINDOW *win, int ch)
! 216: {
! 217: int c;
! 218:
! 219: if (ch == '\n')
! 220: while ((c = readchar(win)) != '\n' && c != '\r')
! 221: continue;
! 222: else
! 223: while (readchar(win) != ch)
! 224: continue;
! 225: }
! 226:
! 227: /*
! 228: * show_win:
! 229: * function used to display a window and wait before returning
! 230: */
! 231:
! 232: void
! 233: show_win(WINDOW *scr, char *message)
! 234: {
! 235: mvwaddstr(scr, 0, 0, message);
! 236: touchwin(scr);
! 237: wmove(scr, hero.y, hero.x);
! 238: draw(scr);
! 239: wait_for(scr,' ');
! 240: clearok(cw, TRUE);
! 241: touchwin(cw);
! 242: }
! 243:
! 244: void
! 245: flush_type()
! 246: {
! 247: flushinp();
! 248: }
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