327 lines
6.6 KiB
C
327 lines
6.6 KiB
C
/* $NetBSD: move.c,v 1.16 2009/08/12 08:30:55 dholland Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)move.c 8.1 (Berkeley) 5/31/93";
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#else
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__RCSID("$NetBSD: move.c,v 1.16 2009/08/12 08:30:55 dholland Exp $");
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#endif
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/ttydefaults.h> /* for CTRL */
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#include <ctype.h>
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#include <curses.h>
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#include <unistd.h>
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#include "robots.h"
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#define ESC '\033'
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static bool do_move(int, int);
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static bool eaten(const COORD *);
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static bool must_telep(void);
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/*
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* get_move:
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* Get and execute a move from the player
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*/
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void
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get_move(void)
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{
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int c;
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#ifdef FANCY
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int lastmove;
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#endif /*FANCY*/
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if (Waiting)
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return;
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#ifdef FANCY
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if (Pattern_roll) {
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if (Next_move >= Move_list)
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lastmove = *Next_move;
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else
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lastmove = -1; /* flag for "first time in" */
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} else
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lastmove = 0; /* Shut up gcc */
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#endif
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for (;;) {
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if (Teleport && must_telep())
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goto teleport;
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if (Running)
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c = Run_ch;
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else if (Count != 0)
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c = Cnt_move;
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#ifdef FANCY
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else if (Num_robots > 1 && Stand_still)
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c = '>';
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else if (Num_robots > 1 && Pattern_roll) {
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if (*++Next_move == '\0') {
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if (lastmove < 0)
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goto over;
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Next_move = Move_list;
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}
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c = *Next_move;
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mvaddch(0, 0, c);
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if (c == lastmove)
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goto over;
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}
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#endif
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else {
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over:
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if (Auto_bot) {
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c = automove();
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if (!Jump) {
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usleep(10000);
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refresh();
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}
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} else
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c = getchar();
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if (isdigit(c)) {
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Count = (c - '0');
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while (isdigit(c = getchar()))
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Count = Count * 10 + (c - '0');
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if (c == ESC)
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goto over;
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Cnt_move = c;
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if (Count)
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leaveok(stdscr, TRUE);
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}
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}
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switch (c) {
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case ' ':
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case '.':
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if (do_move(0, 0))
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goto ret;
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break;
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case 'y':
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if (do_move(-1, -1))
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goto ret;
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break;
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case 'k':
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if (do_move(-1, 0))
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goto ret;
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break;
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case 'u':
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if (do_move(-1, 1))
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goto ret;
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break;
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case 'h':
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if (do_move(0, -1))
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goto ret;
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break;
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case 'l':
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if (do_move(0, 1))
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goto ret;
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break;
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case 'b':
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if (do_move(1, -1))
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goto ret;
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break;
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case 'j':
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if (do_move(1, 0))
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goto ret;
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break;
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case 'n':
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if (do_move(1, 1))
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goto ret;
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break;
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case 'Y': case 'U': case 'H': case 'J':
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case 'K': case 'L': case 'B': case 'N':
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case '>':
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Running = true;
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if (c == '>')
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Run_ch = ' ';
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else
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Run_ch = tolower(c);
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leaveok(stdscr, TRUE);
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break;
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case 'q':
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case 'Q':
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if (query("Really quit?"))
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quit(0);
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refresh();
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break;
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case 'w':
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case 'W':
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Waiting = true;
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leaveok(stdscr, TRUE);
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goto ret;
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case 't':
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case 'T':
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teleport:
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Running = false;
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mvaddch(My_pos.y, My_pos.x, ' ');
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My_pos = *rnd_pos();
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telmsg(1);
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refresh();
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sleep(1);
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telmsg(0);
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mvaddch(My_pos.y, My_pos.x, PLAYER);
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leaveok(stdscr, FALSE);
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refresh();
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flush_in();
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goto ret;
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case CTRL('L'):
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refresh();
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break;
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case EOF:
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break;
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default:
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putchar(CTRL('G'));
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reset_count();
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fflush(stdout);
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break;
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}
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}
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ret:
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if (Count > 0)
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if (--Count == 0)
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leaveok(stdscr, FALSE);
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}
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/*
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* must_telep:
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* Must I teleport; i.e., is there anywhere I can move without
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* being eaten?
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*/
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static bool
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must_telep(void)
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{
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int x, y;
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static COORD newpos;
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#ifdef FANCY
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if (Stand_still && Num_robots > 1 && eaten(&My_pos))
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return true;
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#endif
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for (y = -1; y <= 1; y++) {
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newpos.y = My_pos.y + y;
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if (newpos.y <= 0 || newpos.y >= Y_FIELDSIZE)
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continue;
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for (x = -1; x <= 1; x++) {
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newpos.x = My_pos.x + x;
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if (newpos.x <= 0 || newpos.x >= X_FIELDSIZE)
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continue;
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if (Field[newpos.y][newpos.x] > 0)
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continue;
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if (!eaten(&newpos))
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return false;
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}
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}
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return true;
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}
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/*
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* do_move:
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* Execute a move
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*/
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static bool
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do_move(int dy, int dx)
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{
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static COORD newpos;
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newpos.y = My_pos.y + dy;
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newpos.x = My_pos.x + dx;
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if (newpos.y <= 0 || newpos.y >= Y_FIELDSIZE ||
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newpos.x <= 0 || newpos.x >= X_FIELDSIZE ||
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Field[newpos.y][newpos.x] > 0 || eaten(&newpos)) {
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if (Running) {
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Running = false;
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leaveok(stdscr, FALSE);
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move(My_pos.y, My_pos.x);
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refresh();
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}
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else {
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putchar(CTRL('G'));
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reset_count();
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}
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return false;
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}
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else if (dy == 0 && dx == 0)
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return true;
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mvaddch(My_pos.y, My_pos.x, ' ');
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My_pos = newpos;
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mvaddch(My_pos.y, My_pos.x, PLAYER);
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if (!jumping())
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refresh();
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return true;
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}
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/*
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* eaten:
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* Player would get eaten at this place
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*/
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static bool
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eaten(const COORD *pos)
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{
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int x, y;
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for (y = pos->y - 1; y <= pos->y + 1; y++) {
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if (y <= 0 || y >= Y_FIELDSIZE)
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continue;
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for (x = pos->x - 1; x <= pos->x + 1; x++) {
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if (x <= 0 || x >= X_FIELDSIZE)
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continue;
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if (Field[y][x] == 1)
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return true;
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}
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}
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return false;
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}
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/*
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* reset_count:
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* Reset the count variables
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*/
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void
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reset_count(void)
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{
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Count = 0;
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Running = false;
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leaveok(stdscr, FALSE);
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refresh();
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}
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/*
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* jumping:
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* See if we are jumping, i.e., we should not refresh.
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*/
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bool
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jumping(void)
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{
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return (Jump && (Count || Running || Waiting));
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}
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