/* * Copyright (c) 1980 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint static char sccsid[] = "@(#)move.c 5.3 (Berkeley) 6/18/88"; #endif /* not lint */ # include "robots.h" # include <ctype.h> # define ESC '\033' /* * get_move: * Get and execute a move from the player */ get_move() { register int c; register int y, x, lastmove; static COORD newpos; if (Waiting) return; #ifdef FANCY if (Pattern_roll) { if (Next_move >= Move_list) lastmove = *Next_move; else lastmove = -1; /* flag for "first time in" */ } #endif for (;;) { if (Teleport && must_telep()) goto teleport; if (Running) c = Run_ch; else if (Count != 0) c = Cnt_move; #ifdef FANCY else if (Num_robots > 1 && Stand_still) c = '>'; else if (Num_robots > 1 && Pattern_roll) { if (*++Next_move == '\0') { if (lastmove < 0) goto over; Next_move = Move_list; } c = *Next_move; mvaddch(0, 0, c); if (c == lastmove) goto over; } #endif else { over: c = getchar(); if (isdigit(c)) { Count = (c - '0'); while (isdigit(c = getchar())) Count = Count * 10 + (c - '0'); if (c == ESC) goto over; Cnt_move = c; if (Count) leaveok(stdscr, TRUE); } } switch (c) { case ' ': case '.': if (do_move(0, 0)) goto ret; break; case 'y': if (do_move(-1, -1)) goto ret; break; case 'k': if (do_move(-1, 0)) goto ret; break; case 'u': if (do_move(-1, 1)) goto ret; break; case 'h': if (do_move(0, -1)) goto ret; break; case 'l': if (do_move(0, 1)) goto ret; break; case 'b': if (do_move(1, -1)) goto ret; break; case 'j': if (do_move(1, 0)) goto ret; break; case 'n': if (do_move(1, 1)) goto ret; break; case 'Y': case 'U': case 'H': case 'J': case 'K': case 'L': case 'B': case 'N': case '>': Running = TRUE; if (c == '>') Run_ch = ' '; else Run_ch = tolower(c); leaveok(stdscr, TRUE); break; case 'q': case 'Q': if (query("Really quit?")) quit(); refresh(); break; case 'w': case 'W': Waiting = TRUE; leaveok(stdscr, TRUE); flushok(stdscr, FALSE); goto ret; case 't': case 'T': teleport: Running = FALSE; mvaddch(My_pos.y, My_pos.x, ' '); My_pos = *rnd_pos(); mvaddch(My_pos.y, My_pos.x, PLAYER); leaveok(stdscr, FALSE); refresh(); flush_in(); goto ret; case CTRL(L): wrefresh(curscr); break; case EOF: break; default: putchar(CTRL(G)); reset_count(); fflush(stdout); break; } } ret: if (Count > 0) if (--Count == 0) leaveok(stdscr, FALSE); } /* * must_telep: * Must I teleport; i.e., is there anywhere I can move without * being eaten? */ must_telep() { register int x, y; static COORD newpos; #ifdef FANCY if (Stand_still && Num_robots > 1 && eaten(&My_pos)) return TRUE; #endif for (y = -1; y <= 1; y++) { newpos.y = My_pos.y + y; if (newpos.y <= 0 || newpos.y >= Y_FIELDSIZE) continue; for (x = -1; x <= 1; x++) { newpos.x = My_pos.x + x; if (newpos.x <= 0 || newpos.x >= X_FIELDSIZE) continue; if (Field[newpos.y][newpos.x] > 0) continue; if (!eaten(&newpos)) return FALSE; } } return TRUE; } /* * do_move: * Execute a move */ do_move(dy, dx) int dy, dx; { static COORD newpos; newpos.y = My_pos.y + dy; newpos.x = My_pos.x + dx; if (newpos.y <= 0 || newpos.y >= Y_FIELDSIZE || newpos.x <= 0 || newpos.x >= X_FIELDSIZE || Field[newpos.y][newpos.x] > 0 || eaten(&newpos)) { if (Running) { Running = FALSE; leaveok(stdscr, FALSE); move(My_pos.y, My_pos.x); refresh(); } else { putchar(CTRL(G)); reset_count(); } return FALSE; } else if (dy == 0 && dx == 0) return TRUE; mvaddch(My_pos.y, My_pos.x, ' '); My_pos = newpos; mvaddch(My_pos.y, My_pos.x, PLAYER); if (!jumping()) refresh(); return TRUE; } /* * eaten: * Player would get eaten at this place */ eaten(pos) register COORD *pos; { register int x, y; for (y = pos->y - 1; y <= pos->y + 1; y++) { if (y <= 0 || y >= Y_FIELDSIZE) continue; for (x = pos->x - 1; x <= pos->x + 1; x++) { if (x <= 0 || x >= X_FIELDSIZE) continue; if (Field[y][x] == 1) return TRUE; } } return FALSE; } /* * reset_count: * Reset the count variables */ reset_count() { Count = 0; Running = FALSE; leaveok(stdscr, FALSE); refresh(); } /* * jumping: * See if we are jumping, i.e., we should not refresh. */ jumping() { return (Jump && (Count || Running || Waiting)); }