aboutsummaryrefslogtreecommitdiff
path: root/games/bs
diff options
context:
space:
mode:
authorMark Murray <markm@FreeBSD.org>2002-10-21 07:40:27 +0000
committerMark Murray <markm@FreeBSD.org>2002-10-21 07:40:27 +0000
commit88001492142be07a49016a8cf7eff78171d59f64 (patch)
treeb90261e8ce260fee190d0f359aa2884ddf2510de /games/bs
parente05f78b8316cc4c48131cbc9093827a26f204680 (diff)
downloadsrc-88001492142be07a49016a8cf7eff78171d59f64.tar.gz
src-88001492142be07a49016a8cf7eff78171d59f64.zip
Deorbit complete. We dont build these anymore, so into the attic they go.
Notes
Notes: svn path=/head/; revision=105614
Diffstat (limited to 'games/bs')
-rw-r--r--games/bs/Makefile9
-rw-r--r--games/bs/bs.643
-rw-r--r--games/bs/bs.c1246
3 files changed, 0 insertions, 1298 deletions
diff --git a/games/bs/Makefile b/games/bs/Makefile
deleted file mode 100644
index 5a6ca34bfe53..000000000000
--- a/games/bs/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-# $FreeBSD$
-
-PROG= bs
-MAN= bs.6
-DPADD= ${LIBNCURSES}
-LDADD= -lncurses
-HIDEGAME=hidegame
-
-.include <bsd.prog.mk>
diff --git a/games/bs/bs.6 b/games/bs/bs.6
deleted file mode 100644
index da52e285d1a7..000000000000
--- a/games/bs/bs.6
+++ /dev/null
@@ -1,43 +0,0 @@
-.\" $FreeBSD$
-.TH BATTLESHIPS 6 "Aug 23, 1989"
-.SH NAME
-bs \- battleships game
-.SH SYNOPSIS
-bs [ -b | -s ] [ -c ]
-.SH DESCRIPTION
-This program allows you to play the familiar Battleships game against the
-computer on a 10x10 board. The interface is visual and largely
-self-explanatory; you place your ships and pick your shots by moving the
-cursor around the `sea' with the rogue/hack motion keys hjklyubn.
-.PP
-Note that when selecting a ship to place, you must type the capital letter
-(these are, after all, capital ships). During ship placement, the `r' command
-may be used to ignore the current position and randomly place your currently
-selected ship. The `R' command will place all remaining ships randomly. The ^L
-command (form feed, ASCII 12) will force a screen redraw).
-.PP
-The command-line arguments control game modes.
-
-.nf
- -b selects a `blitz' variant
- -s selects a `salvo' variant
- -c permits ships to be placed adjacently
-.fi
-
-The `blitz' variant allows a side to shoot for as long as it continues to
-score hits.
-.PP
-The `salvo' game allows a player one shot per turn for each of his/her ships
-still afloat. This puts a premium scoring hits early and knocking out some
-ships and also makes much harder the situation where you face a superior force
-with only your PT-boat.
-.PP
-Normally, ships must be separated by at least one square of open water. The
--c option disables this check and allows them to close-pack.
-.PP
-The algorithm the computer uses once it has found a ship to sink is provably
-optimal. The dispersion criterion for the random-fire algorithm may not be.
-.SH AUTHORS
-Originally written by one Bruce Holloway in 1986. Salvo mode added by Chuck A.
-DeGaul (cbosgd!cad). Visual user interface, `closepack' option, code rewrite
-and manual page by Eric S. Raymond <esr@snark.thyrsus.com> August 1989.
diff --git a/games/bs/bs.c b/games/bs/bs.c
deleted file mode 100644
index 4a16379988b6..000000000000
--- a/games/bs/bs.c
+++ /dev/null
@@ -1,1246 +0,0 @@
-/*
- * bs.c - original author: Bruce Holloway
- * salvo option by: Chuck A DeGaul
- * with improved user interface, autoconfiguration and code cleanup
- * by Eric S. Raymond <esr@snark.thyrsus.com>
- * v1.2 with color support and minor portability fixes, November 1990
- * v2.0 featuring strict ANSI/POSIX conformance, November 1993.
- *
- * $FreeBSD$
- */
-
-#include <ncurses.h>
-#include <signal.h>
-#include <ctype.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <time.h>
-#include <string.h>
-
-#ifndef A_UNDERLINE /* BSD curses */
-#define beep() write(1,"\007",1);
-#define cbreak crmode
-#define saveterm savetty
-#define resetterm resetty
-#define nocbreak nocrmode
-#define strchr index
-#endif /* !A_UNDERLINE */
-
-
-/*
- * Constants for tuning the random-fire algorithm. It prefers moves that
- * diagonal-stripe the board with a stripe separation of srchstep. If
- * no such preferred moves are found, srchstep is decremented.
- */
-#define BEGINSTEP 3 /* initial value of srchstep */
-
-/* miscellaneous constants */
-#define SHIPTYPES 5
-#define OTHER (1-turn)
-#define PLAYER 0
-#define COMPUTER 1
-#define MARK_HIT 'H'
-#define MARK_MISS 'o'
-#define CTRLC '\003' /* used as terminate command */
-#define FF '\014' /* used as redraw command */
-
-/* coordinate handling */
-#define BWIDTH 10
-#define BDEPTH 10
-
-/* display symbols */
-#define SHOWHIT '*'
-#define SHOWSPLASH ' '
-#define IS_SHIP(c) isupper(c)
-
-/* how to position us on player board */
-#define PYBASE 3
-#define PXBASE 3
-#define PY(y) (PYBASE + (y))
-#define PX(x) (PXBASE + (x)*3)
-#define pgoto(y, x) (void)move(PY(y), PX(x))
-
-/* how to position us on cpu board */
-#define CYBASE 3
-#define CXBASE 48
-#define CY(y) (CYBASE + (y))
-#define CX(x) (CXBASE + (x)*3)
-#define cgoto(y, x) (void)move(CY(y), CX(x))
-
-#define ONBOARD(x, y) (x >= 0 && x < BWIDTH && y >= 0 && y < BDEPTH)
-
-/* other board locations */
-#define COLWIDTH 80
-#define PROMPTLINE 21 /* prompt line */
-#define SYBASE CYBASE + BDEPTH + 3 /* move key diagram */
-#define SXBASE 63
-#define MYBASE SYBASE - 1 /* diagram caption */
-#define MXBASE 64
-#define HYBASE SYBASE - 1 /* help area */
-#define HXBASE 0
-
-/* this will need to be changed if BWIDTH changes */
-static char numbers[] = " 0 1 2 3 4 5 6 7 8 9";
-
-static char carrier[] = "Aircraft Carrier";
-static char battle[] = "Battleship";
-static char sub[] = "Submarine";
-static char destroy[] = "Destroyer";
-static char ptboat[] = "PT Boat";
-
-static char name[40];
-static char dftname[] = "stranger";
-
-/* direction constants */
-enum directions { E, SE, S, SW, W, NW, N, NE };
-static int xincr[8] = {1, 1, 0, -1, -1, -1, 0, 1};
-static int yincr[8] = {0, 1, 1, 1, 0, -1, -1, -1};
-
-/* current ship position and direction */
-static int curx = (BWIDTH / 2);
-static int cury = (BDEPTH / 2);
-
-typedef struct
-{
- char *name; /* name of the ship type */
- unsigned int hits; /* how many times has this ship been hit? */
- char symbol; /* symbol for game purposes */
- char length; /* length of ship */
- char x, y; /* coordinates of ship start point */
- enum directions dir;/* direction of `bow' */
- bool placed; /* has it been placed on the board? */
-}
-ship_t;
-
-ship_t plyship[SHIPTYPES] =
-{
- { carrier, 0, 'A', 5},
- { battle, 0, 'B', 4},
- { destroy, 0, 'D', 3},
- { sub, 0, 'S', 3},
- { ptboat, 0, 'P', 2},
-};
-
-ship_t cpuship[SHIPTYPES] =
-{
- { carrier, 0, 'A', 5},
- { battle, 0, 'B', 4},
- { destroy, 0, 'D', 3},
- { sub, 0, 'S', 3},
- { ptboat, 0, 'P', 2},
-};
-
-/* "Hits" board, and main board. */
-static char hits[2][BWIDTH][BDEPTH], board[2][BWIDTH][BDEPTH];
-
-static int turn; /* 0=player, 1=computer */
-static int plywon=0, cpuwon=0; /* How many games has each won? */
-
-static int salvo, blitz, closepack;
-
-#define PR (void)addstr
-
-static bool checkplace(int, ship_t *, int);
-static int getcoord(int);
-int playagain(void);
-
-static void uninitgame(sig)
-/* end the game, either normally or due to signal */
-int sig;
-{
- clear();
- (void)refresh();
- (void)resetterm();
- (void)echo();
- (void)endwin();
- exit(0);
-}
-
-static void announceopts()
-/* announce which game options are enabled */
-{
- if (salvo || blitz || closepack)
- {
- (void) printw("Playing optional game (");
- if (salvo)
- (void) printw("salvo, ");
- else
- (void) printw("nosalvo, ");
- if (blitz)
- (void) printw("blitz ");
- else
- (void) printw("noblitz, ");
- if (closepack)
- (void) printw("closepack)");
- else
- (void) printw("noclosepack)");
- }
- else
- (void) printw(
- "Playing standard game (noblitz, nosalvo, noclosepack)");
-}
-
-static void intro()
-{
- char *tmpname;
-
- srandomdev();
-
- tmpname = getlogin();
- (void) signal(SIGINT,uninitgame);
- (void) signal(SIGINT,uninitgame);
- (void) signal(SIGIOT,uninitgame); /* for assert(3) */
- if(signal(SIGQUIT,SIG_IGN) != SIG_IGN)
- (void)signal(SIGQUIT,uninitgame);
-
- if(tmpname != '\0')
- {
- (void)strcpy(name,tmpname);
- name[0] = toupper(name[0]);
- }
- else
- (void)strcpy(name,dftname);
-
- (void)initscr();
-#ifdef KEY_MIN
- keypad(stdscr, TRUE);
-#endif /* KEY_MIN */
- (void)saveterm();
- (void)nonl();
- (void)cbreak();
- (void)noecho();
-
-#ifdef PENGUIN
- (void)clear();
- (void)mvaddstr(4,29,"Welcome to Battleship!");
- (void)move(8,0);
- PR(" \\\n");
- PR(" \\ \\ \\\n");
- PR(" \\ \\ \\ \\ \\_____________\n");
- PR(" \\ \\ \\_____________ \\ \\/ |\n");
- PR(" \\ \\/ \\ \\/ |\n");
- PR(" \\/ \\_____/ |__\n");
- PR(" ________________/ |\n");
- PR(" \\ S.S. Penguin |\n");
- PR(" \\ /\n");
- PR(" \\___________________________________________________/\n");
-
- (void) mvaddstr(22,27,"Hit any key to continue..."); (void)refresh();
- (void) getch();
-#endif /* PENGUIN */
-
-#ifdef A_COLOR
- start_color();
-
- init_pair(COLOR_BLACK, COLOR_BLACK, COLOR_BLACK);
- init_pair(COLOR_GREEN, COLOR_GREEN, COLOR_BLACK);
- init_pair(COLOR_RED, COLOR_RED, COLOR_BLACK);
- init_pair(COLOR_CYAN, COLOR_CYAN, COLOR_BLACK);
- init_pair(COLOR_WHITE, COLOR_WHITE, COLOR_BLACK);
- init_pair(COLOR_MAGENTA, COLOR_MAGENTA, COLOR_BLACK);
- init_pair(COLOR_BLUE, COLOR_BLUE, COLOR_BLACK);
- init_pair(COLOR_YELLOW, COLOR_YELLOW, COLOR_BLACK);
-#endif /* A_COLOR */
-
-}
-
-/* VARARGS1 */
-static void prompt(n, f, s)
-/* print a message at the prompt line */
-int n;
-char *f, *s;
-{
- (void) move(PROMPTLINE + n, 0);
- (void) clrtoeol();
- (void) printw(f, s);
- (void) refresh();
-}
-
-static void error(s)
-char *s;
-{
- (void) move(PROMPTLINE + 2, 0);
- (void) clrtoeol();
- if (s)
- {
- (void) addstr(s);
- (void) beep();
- }
-}
-
-static void placeship(b, ss, vis)
-int b;
-ship_t *ss;
-int vis;
-{
- int l;
-
- for(l = 0; l < ss->length; ++l)
- {
- int newx = ss->x + l * xincr[ss->dir];
- int newy = ss->y + l * yincr[ss->dir];
-
- board[b][newx][newy] = ss->symbol;
- if (vis)
- {
- pgoto(newy, newx);
- (void) addch((chtype)ss->symbol);
- }
- }
- ss->hits = 0;
-}
-
-static int rnd(n)
-int n;
-{
- return(random() % n);
-}
-
-static void randomplace(b, ss)
-/* generate a valid random ship placement into px,py */
-int b;
-ship_t *ss;
-{
- int bwidth = BWIDTH - ss->length;
- int bdepth = BDEPTH - ss->length;
-
- do {
- ss->y = rnd(bdepth);
- ss->x = rnd(bwidth);
- ss->dir = rnd(2) ? E : S;
- } while
- (!checkplace(b, ss, FALSE));
-}
-
-static void initgame()
-{
- int i, j, unplaced;
- ship_t *ss;
-
- (void) clear();
- (void) mvaddstr(0,35,"BATTLESHIPS");
- (void) move(PROMPTLINE + 2, 0);
- announceopts();
-
- bzero(board, sizeof(char) * BWIDTH * BDEPTH * 2);
- bzero(hits, sizeof(char) * BWIDTH * BDEPTH * 2);
- for (i = 0; i < SHIPTYPES; i++)
- {
- ss = cpuship + i;
- ss->x = ss->y = ss->dir = ss->hits = ss->placed = 0;
- ss = plyship + i;
- ss->x = ss->y = ss->dir = ss->hits = ss->placed = 0;
- }
-
- /* draw empty boards */
- (void) mvaddstr(PYBASE - 2, PXBASE + 5, "Main Board");
- (void) mvaddstr(PYBASE - 1, PXBASE - 3,numbers);
- for(i=0; i < BDEPTH; ++i)
- {
- (void) mvaddch(PYBASE + i, PXBASE - 3, i + 'A');
-#ifdef A_COLOR
- if (has_colors())
- attron(COLOR_PAIR(COLOR_BLUE));
-#endif /* A_COLOR */
- (void) addch(' ');
- for (j = 0; j < BWIDTH; j++)
- (void) addstr(" . ");
-#ifdef A_COLOR
- attrset(0);
-#endif /* A_COLOR */
- (void) addch(' ');
- (void) addch(i + 'A');
- }
- (void) mvaddstr(PYBASE + BDEPTH, PXBASE - 3,numbers);
- (void) mvaddstr(CYBASE - 2, CXBASE + 7,"Hit/Miss Board");
- (void) mvaddstr(CYBASE - 1, CXBASE - 3, numbers);
- for(i=0; i < BDEPTH; ++i)
- {
- (void) mvaddch(CYBASE + i, CXBASE - 3, i + 'A');
-#ifdef A_COLOR
- if (has_colors())
- attron(COLOR_PAIR(COLOR_BLUE));
-#endif /* A_COLOR */
- (void) addch(' ');
- for (j = 0; j < BWIDTH; j++)
- (void) addstr(" . ");
-#ifdef A_COLOR
- attrset(0);
-#endif /* A_COLOR */
- (void) addch(' ');
- (void) addch(i + 'A');
- }
-
- (void) mvaddstr(CYBASE + BDEPTH,CXBASE - 3,numbers);
-
- (void) mvprintw(HYBASE, HXBASE,
- "To position your ships: move the cursor to a spot, then");
- (void) mvprintw(HYBASE+1,HXBASE,
- "type the first letter of a ship type to select it, then");
- (void) mvprintw(HYBASE+2,HXBASE,
- "type a direction ([hjkl] or [4862]), indicating how the");
- (void) mvprintw(HYBASE+3,HXBASE,
- "ship should be pointed. You may also type a ship letter");
- (void) mvprintw(HYBASE+4,HXBASE,
- "followed by `r' to position it randomly, or type `R' to");
- (void) mvprintw(HYBASE+5,HXBASE,
- "place all remaining ships randomly.");
-
- (void) mvaddstr(MYBASE, MXBASE, "Aiming keys:");
- (void) mvaddstr(SYBASE, SXBASE, "y k u 7 8 9");
- (void) mvaddstr(SYBASE+1, SXBASE, " \\|/ \\|/ ");
- (void) mvaddstr(SYBASE+2, SXBASE, "h-+-l 4-+-6");
- (void) mvaddstr(SYBASE+3, SXBASE, " /|\\ /|\\ ");
- (void) mvaddstr(SYBASE+4, SXBASE, "b j n 1 2 3");
-
- /* have the computer place ships */
- for(ss = cpuship; ss < cpuship + SHIPTYPES; ss++)
- {
- randomplace(COMPUTER, ss);
- placeship(COMPUTER, ss, FALSE);
- }
-
- ss = (ship_t *)NULL;
- do {
- char c, docked[SHIPTYPES + 2], *cp = docked;
-
- /* figure which ships still wait to be placed */
- *cp++ = 'R';
- for (i = 0; i < SHIPTYPES; i++)
- if (!plyship[i].placed)
- *cp++ = plyship[i].symbol;
- *cp = '\0';
-
- /* get a command letter */
- prompt(1, "Type one of [%s] to pick a ship.", docked+1);
- do {
- c = getcoord(PLAYER);
- } while
- (!strchr(docked, c));
-
- if (c == 'R')
- (void) ungetch('R');
- else
- {
- /* map that into the corresponding symbol */
- for (ss = plyship; ss < plyship + SHIPTYPES; ss++)
- if (ss->symbol == c)
- break;
-
- prompt(1, "Type one of [hjklrR] to place your %s.", ss->name);
- pgoto(cury, curx);
- }
-
- do {
- c = getch();
- } while
- (!strchr("hjklrR", c) || c == FF);
-
- if (c == FF)
- {
- (void)clearok(stdscr, TRUE);
- (void)refresh();
- }
- else if (c == 'r')
- {
- prompt(1, "Random-placing your %s", ss->name);
- randomplace(PLAYER, ss);
- placeship(PLAYER, ss, TRUE);
- error((char *)NULL);
- ss->placed = TRUE;
- }
- else if (c == 'R')
- {
- prompt(1, "Placing the rest of your fleet at random...");
- for (ss = plyship; ss < plyship + SHIPTYPES; ss++)
- if (!ss->placed)
- {
- randomplace(PLAYER, ss);
- placeship(PLAYER, ss, TRUE);
- ss->placed = TRUE;
- }
- error((char *)NULL);
- }
- else if (strchr("hjkl8462", c))
- {
- ss->x = curx;
- ss->y = cury;
-
- switch(c)
- {
- case 'k': case '8': ss->dir = N; break;
- case 'j': case '2': ss->dir = S; break;
- case 'h': case '4': ss->dir = W; break;
- case 'l': case '6': ss->dir = E; break;
- }
-
- if (checkplace(PLAYER, ss, TRUE))
- {
- placeship(PLAYER, ss, TRUE);
- error((char *)NULL);
- ss->placed = TRUE;
- }
- }
-
- for (unplaced = i = 0; i < SHIPTYPES; i++)
- unplaced += !plyship[i].placed;
- } while
- (unplaced);
-
- turn = rnd(2);
-
- (void) mvprintw(HYBASE, HXBASE,
- "To fire, move the cursor to your chosen aiming point ");
- (void) mvprintw(HYBASE+1, HXBASE,
- "and strike any key other than a motion key. ");
- (void) mvprintw(HYBASE+2, HXBASE,
- " ");
- (void) mvprintw(HYBASE+3, HXBASE,
- " ");
- (void) mvprintw(HYBASE+4, HXBASE,
- " ");
- (void) mvprintw(HYBASE+5, HXBASE,
- " ");
-
- (void) prompt(0, "Press any key to start...");
- (void) getch();
-}
-
-static int getcoord(atcpu)
-int atcpu;
-{
- int ny, nx, c;
-
- if (atcpu)
- cgoto(cury,curx);
- else
- pgoto(cury, curx);
- (void)refresh();
- for (;;)
- {
- if (atcpu)
- {
- (void) mvprintw(CYBASE + BDEPTH+1, CXBASE+11, "(%d, %c)", curx, 'A'+cury);
- cgoto(cury, curx);
- }
- else
- {
- (void) mvprintw(PYBASE + BDEPTH+1, PXBASE+11, "(%d, %c)", curx, 'A'+cury);
- pgoto(cury, curx);
- }
-
- switch(c = getch())
- {
- case 'k': case '8':
-#ifdef KEY_MIN
- case KEY_UP:
-#endif /* KEY_MIN */
- ny = cury+BDEPTH-1; nx = curx;
- break;
- case 'j': case '2':
-#ifdef KEY_MIN
- case KEY_DOWN:
-#endif /* KEY_MIN */
- ny = cury+1; nx = curx;
- break;
- case 'h': case '4':
-#ifdef KEY_MIN
- case KEY_LEFT:
-#endif /* KEY_MIN */
- ny = cury; nx = curx+BWIDTH-1;
- break;
- case 'l': case '6':
-#ifdef KEY_MIN
- case KEY_RIGHT:
-#endif /* KEY_MIN */
- ny = cury; nx = curx+1;
- break;
- case 'y': case '7':
-#ifdef KEY_MIN
- case KEY_A1:
-#endif /* KEY_MIN */
- ny = cury+BDEPTH-1; nx = curx+BWIDTH-1;
- break;
- case 'b': case '1':
-#ifdef KEY_MIN
- case KEY_C1:
-#endif /* KEY_MIN */
- ny = cury+1; nx = curx+BWIDTH-1;
- break;
- case 'u': case '9':
-#ifdef KEY_MIN
- case KEY_A3:
-#endif /* KEY_MIN */
- ny = cury+BDEPTH-1; nx = curx+1;
- break;
- case 'n': case '3':
-#ifdef KEY_MIN
- case KEY_C3:
-#endif /* KEY_MIN */
- ny = cury+1; nx = curx+1;
- break;
- case FF:
- nx = curx; ny = cury;
- (void)clearok(stdscr, TRUE);
- (void)refresh();
- break;
- default:
- if (atcpu)
- (void) mvaddstr(CYBASE + BDEPTH + 1, CXBASE + 11, " ");
- else
- (void) mvaddstr(PYBASE + BDEPTH + 1, PXBASE + 11, " ");
- return(c);
- }
-
- curx = nx % BWIDTH;
- cury = ny % BDEPTH;
- }
-}
-
-static int collidecheck(b, y, x)
-/* is this location on the selected zboard adjacent to a ship? */
-int b;
-int y, x;
-{
- int collide;
-
- /* anything on the square */
- if ((collide = IS_SHIP(board[b][x][y])) != 0)
- return(collide);
-
- /* anything on the neighbors */
- if (!closepack)
- {
- int i;
-
- for (i = 0; i < 8; i++)
- {
- int xend, yend;
-
- yend = y + yincr[i];
- xend = x + xincr[i];
- if (ONBOARD(xend, yend))
- collide += IS_SHIP(board[b][xend][yend]);
- }
- }
- return(collide);
-}
-
-static bool checkplace(b, ss, vis)
-int b;
-ship_t *ss;
-int vis;
-{
- int l, xend, yend;
-
- /* first, check for board edges */
- xend = ss->x + ss->length * xincr[ss->dir];
- yend = ss->y + ss->length * yincr[ss->dir];
- if (!ONBOARD(xend, yend))
- {
- if (vis)
- switch(rnd(3))
- {
- case 0:
- error("Ship is hanging from the edge of the world");
- break;
- case 1:
- error("Try fitting it on the board");
- break;
- case 2:
- error("Figure I won't find it if you put it there?");
- break;
- }
- return(0);
- }
-
- for(l = 0; l < ss->length; ++l)
- {
- if(collidecheck(b, ss->y+l*yincr[ss->dir], ss->x+l*xincr[ss->dir]))
- {
- if (vis)
- switch(rnd(3))
- {
- case 0:
- error("There's already a ship there");
- break;
- case 1:
- error("Collision alert! Aaaaaagh!");
- break;
- case 2:
- error("Er, Admiral, what about the other ship?");
- break;
- }
- return(FALSE);
- }
- }
- return(TRUE);
-}
-
-static int awinna()
-{
- int i, j;
- ship_t *ss;
-
- for(i=0; i<2; ++i)
- {
- ss = (i) ? cpuship : plyship;
- for(j=0; j < SHIPTYPES; ++j, ++ss)
- if(ss->length > ss->hits)
- break;
- if (j == SHIPTYPES)
- return(OTHER);
- }
- return(-1);
-}
-
-static ship_t *hitship(x, y)
-/* a hit on the targeted ship */
-int x, y;
-{
- ship_t *sb, *ss;
- char sym;
- int oldx, oldy;
-
- getyx(stdscr, oldy, oldx);
- sb = (turn) ? plyship : cpuship;
- if(!(sym = board[OTHER][x][y]))
- return((ship_t *)NULL);
- for(ss = sb; ss < sb + SHIPTYPES; ++ss)
- if(ss->symbol == sym)
- {
- if (++ss->hits < ss->length) /* still afloat? */
- return((ship_t *)NULL);
- else /* sunk! */
- {
- int i, j;
-
- if (!closepack)
- for (j = -1; j <= 1; j++)
- {
- int bx = ss->x + j * xincr[(ss->dir + 2) % 8];
- int by = ss->y + j * yincr[(ss->dir + 2) % 8];
-
- for (i = -1; i <= ss->length; ++i)
- {
- int x, y;
-
- x = bx + i * xincr[ss->dir];
- y = by + i * yincr[ss->dir];
- if (ONBOARD(x, y))
- {
- hits[turn][x][y] = MARK_MISS;
- if (turn % 2 == PLAYER)
- {
- cgoto(y, x);
-#ifdef A_COLOR
- if (has_colors())
- attron(COLOR_PAIR(COLOR_GREEN));
-#endif /* A_COLOR */
- (void)addch(MARK_MISS);
-#ifdef A_COLOR
- attrset(0);
-#endif /* A_COLOR */
- }
- }
- }
- }
-
- for (i = 0; i < ss->length; ++i)
- {
- int x = ss->x + i * xincr[ss->dir];
- int y = ss->y + i * yincr[ss->dir];
-
- hits[turn][x][y] = ss->symbol;
- if (turn % 2 == PLAYER)
- {
- cgoto(y, x);
- (void) addch(ss->symbol);
- }
- }
-
- (void) move(oldy, oldx);
- return(ss);
- }
- }
- (void) move(oldy, oldx);
- return((ship_t *)NULL);
-}
-
-static int plyturn()
-{
- ship_t *ss;
- bool hit;
- char *m;
-
- m = NULL;
- prompt(1, "Where do you want to shoot? ");
- for (;;)
- {
- (void) getcoord(COMPUTER);
- if (hits[PLAYER][curx][cury])
- {
- prompt(1, "You shelled this spot already! Try again.");
- beep();
- }
- else
- break;
- }
- hit = IS_SHIP(board[COMPUTER][curx][cury]);
- hits[PLAYER][curx][cury] = hit ? MARK_HIT : MARK_MISS;
- cgoto(cury, curx);
-#ifdef A_COLOR
- if (has_colors()) {
- if (hit)
- attron(COLOR_PAIR(COLOR_RED));
- else
- attron(COLOR_PAIR(COLOR_GREEN));
- }
-#endif /* A_COLOR */
- (void) addch((chtype)hits[PLAYER][curx][cury]);
-#ifdef A_COLOR
- attrset(0);
-#endif /* A_COLOR */
-
- prompt(1, "You %s.", hit ? "scored a hit" : "missed");
- if(hit && (ss = hitship(curx, cury)))
- {
- switch(rnd(5))
- {
- case 0:
- m = " You sank my %s!";
- break;
- case 1:
- m = " I have this sinking feeling about my %s....";
- break;
- case 2:
- m = " My %s has gone to Davy Jones's locker!";
- break;
- case 3:
- m = " Glub, glub -- my %s is headed for the bottom!";
- break;
- case 4:
- m = " You'll pick up survivors from my %s, I hope...!";
- break;
- }
- (void)printw(m, ss->name);
- (void)beep();
- return(awinna() == -1);
- }
- return(hit);
-}
-
-static int sgetc(s)
-char *s;
-{
- char *s1;
- int ch;
-
- (void)refresh();
- for(;;)
- {
- ch = getch();
- if (islower(ch))
- ch = toupper(ch);
- if (ch == CTRLC)
- uninitgame();
- for (s1=s; *s1 && ch != *s1; ++s1)
- continue;
- if (*s1)
- {
- (void) addch((chtype)ch);
- (void)refresh();
- return(ch);
- }
- }
-}
-
-
-static void randomfire(px, py)
-/* random-fire routine -- implements simple diagonal-striping strategy */
-int *px, *py;
-{
- static int turncount = 0;
- static int srchstep = BEGINSTEP;
- static int huntoffs; /* Offset on search strategy */
- int ypossible[BWIDTH * BDEPTH], xpossible[BWIDTH * BDEPTH], nposs;
- int ypreferred[BWIDTH * BDEPTH], xpreferred[BWIDTH * BDEPTH], npref;
- int x, y, i;
-
- if (turncount++ == 0)
- huntoffs = rnd(srchstep);
-
- /* first, list all possible moves */
- nposs = npref = 0;
- for (x = 0; x < BWIDTH; x++)
- for (y = 0; y < BDEPTH; y++)
- if (!hits[COMPUTER][x][y])
- {
- xpossible[nposs] = x;
- ypossible[nposs] = y;
- nposs++;
- if (((x+huntoffs) % srchstep) != (y % srchstep))
- {
- xpreferred[npref] = x;
- ypreferred[npref] = y;
- npref++;
- }
- }
-
- if (npref)
- {
- i = rnd(npref);
-
- *px = xpreferred[i];
- *py = ypreferred[i];
- }
- else if (nposs)
- {
- i = rnd(nposs);
-
- *px = xpossible[i];
- *py = ypossible[i];
-
- if (srchstep > 1)
- --srchstep;
- }
- else
- {
- error("No moves possible?? Help!");
- exit(1);
- /*NOTREACHED*/
- }
-}
-
-#define S_MISS 0
-#define S_HIT 1
-#define S_SUNK -1
-
-static bool cpufire(x, y)
-/* fire away at given location */
-int x, y;
-{
- bool hit, sunk;
- ship_t *ss;
-
- ss = NULL;
- hits[COMPUTER][x][y] = (hit = (board[PLAYER][x][y])) ? MARK_HIT : MARK_MISS;
- (void) mvprintw(PROMPTLINE, 0,
- "I shoot at %c%d. I %s!", y + 'A', x, hit ? "hit" : "miss");
- ss = hitship(x, y);
- sunk = hit && ss;
- if (sunk)
- (void) printw(" I've sunk your %s", ss->name);
- (void)clrtoeol();
-
- pgoto(y, x);
-#ifdef A_COLOR
- if (has_colors()) {
- if (hit)
- attron(COLOR_PAIR(COLOR_RED));
- else
- attron(COLOR_PAIR(COLOR_GREEN));
- }
-#endif /* A_COLOR */
- (void)addch((chtype)(hit ? SHOWHIT : SHOWSPLASH));
-#ifdef A_COLOR
- attrset(0);
-#endif /* A_COLOR */
-
- return(hit ? (sunk ? S_SUNK : S_HIT) : S_MISS);
-}
-
-/*
- * This code implements a fairly irregular FSM, so please forgive the rampant
- * unstructuredness below. The five labels are states which need to be held
- * between computer turns.
- */
-static bool cputurn()
-{
-#define POSSIBLE(x, y) (ONBOARD(x, y) && !hits[COMPUTER][x][y])
-#define RANDOM_FIRE 0
-#define RANDOM_HIT 1
-#define HUNT_DIRECT 2
-#define FIRST_PASS 3
-#define REVERSE_JUMP 4
-#define SECOND_PASS 5
- static int next = RANDOM_FIRE;
- static bool used[4];
- static ship_t ts;
- int navail, x, y, d, n, hit = S_MISS;
-
- switch(next)
- {
- case RANDOM_FIRE: /* last shot was random and missed */
- refire:
- randomfire(&x, &y);
- if (!(hit = cpufire(x, y)))
- next = RANDOM_FIRE;
- else
- {
- ts.x = x; ts.y = y;
- ts.hits = 1;
- next = (hit == S_SUNK) ? RANDOM_FIRE : RANDOM_HIT;
- }
- break;
-
- case RANDOM_HIT: /* last shot was random and hit */
- used[E/2] = used[S/2] = used[W/2] = used[N/2] = FALSE;
- /* FALLTHROUGH */
-
- case HUNT_DIRECT: /* last shot hit, we're looking for ship's long axis */
- for (d = navail = 0; d < 4; d++)
- {
- x = ts.x + xincr[d*2]; y = ts.y + yincr[d*2];
- if (!used[d] && POSSIBLE(x, y))
- navail++;
- else
- used[d] = TRUE;
- }
- if (navail == 0) /* no valid places for shots adjacent... */
- goto refire; /* ...so we must random-fire */
- else
- {
- for (d = 0, n = rnd(navail) + 1; n; n--)
- while (used[d])
- d++;
-
- assert(d <= 4);
-
- used[d] = FALSE;
- x = ts.x + xincr[d*2];
- y = ts.y + yincr[d*2];
-
- assert(POSSIBLE(x, y));
-
- if (!(hit = cpufire(x, y)))
- next = HUNT_DIRECT;
- else
- {
- ts.x = x; ts.y = y; ts.dir = d*2; ts.hits++;
- next = (hit == S_SUNK) ? RANDOM_FIRE : FIRST_PASS;
- }
- }
- break;
-
- case FIRST_PASS: /* we have a start and a direction now */
- x = ts.x + xincr[ts.dir];
- y = ts.y + yincr[ts.dir];
- if (POSSIBLE(x, y) && (hit = cpufire(x, y)))
- {
- ts.x = x; ts.y = y; ts.hits++;
- next = (hit == S_SUNK) ? RANDOM_FIRE : FIRST_PASS;
- }
- else
- next = REVERSE_JUMP;
- break;
-
- case REVERSE_JUMP: /* nail down the ship's other end */
- d = ts.dir + 4;
- x = ts.x + ts.hits * xincr[d];
- y = ts.y + ts.hits * yincr[d];
- if (POSSIBLE(x, y) && (hit = cpufire(x, y)))
- {
- ts.x = x; ts.y = y; ts.dir = d; ts.hits++;
- next = (hit == S_SUNK) ? RANDOM_FIRE : SECOND_PASS;
- }
- else
- next = RANDOM_FIRE;
- break;
-
- case SECOND_PASS: /* kill squares not caught on first pass */
- x = ts.x + xincr[ts.dir];
- y = ts.y + yincr[ts.dir];
- if (POSSIBLE(x, y) && (hit = cpufire(x, y)))
- {
- ts.x = x; ts.y = y; ts.hits++;
- next = (hit == S_SUNK) ? RANDOM_FIRE: SECOND_PASS;
- break;
- }
- else
- next = RANDOM_FIRE;
- break;
- }
-
- /* check for continuation and/or winner */
- if (salvo)
- {
- (void)refresh();
- (void)sleep(1);
- }
- if (awinna() != -1)
- return(FALSE);
-
-#ifdef DEBUG
- (void) mvprintw(PROMPTLINE + 2, 0,
- "New state %d, x=%d, y=%d, d=%d",
- next, x, y, d);
-#endif /* DEBUG */
- return(hit);
-}
-
-int
-playagain()
-{
- int j;
- ship_t *ss;
-
- for (ss = cpuship; ss < cpuship + SHIPTYPES; ss++)
- for(j = 0; j < ss->length; j++)
- {
- cgoto(ss->y + j * yincr[ss->dir], ss->x + j * xincr[ss->dir]);
- (void)addch((chtype)ss->symbol);
- }
-
- if(awinna())
- ++cpuwon;
- else
- ++plywon;
- j = 18 + strlen(name);
- if(plywon >= 10)
- ++j;
- if(cpuwon >= 10)
- ++j;
- (void) mvprintw(1,(COLWIDTH-j)/2,
- "%s: %d Computer: %d",name,plywon,cpuwon);
-
- prompt(2, (awinna()) ? "Want to be humiliated again, %s [yn]? "
- : "Going to give me a chance for revenge, %s [yn]? ",name);
- return(sgetc("YN") == 'Y');
-}
-
-static void do_options(c,op)
-int c;
-char *op[];
-{
- int i;
-
- if (c > 1)
- {
- for (i=1; i<c; i++)
- {
- switch(op[i][0])
- {
- default:
- case '?':
- (void) fprintf(stderr, "usage: battle [-s | -b] [-c]\n");
- (void) fprintf(stderr, "\tWhere the options are:\n");
- (void) fprintf(stderr, "\t-s : play a salvo game\n");
- (void) fprintf(stderr, "\t-b : play a blitz game\n");
- (void) fprintf(stderr, "\t-c : ships may be adjacent\n");
- exit(1);
- break;
- case '-':
- switch(op[i][1])
- {
- case 'b':
- blitz = 1;
- if (salvo == 1)
- {
- (void) fprintf(stderr,
- "Bad Arg: -b and -s are mutually exclusive\n");
- exit(1);
- }
- break;
- case 's':
- salvo = 1;
- if (blitz == 1)
- {
- (void) fprintf(stderr,
- "Bad Arg: -s and -b are mutually exclusive\n");
- exit(1);
- }
- break;
- case 'c':
- closepack = 1;
- break;
- default:
- (void) fprintf(stderr,
- "Bad arg: type \"%s ?\" for usage message\n", op[0]);
- exit(1);
- }
- }
- }
- }
-}
-
-static int scount(who)
-int who;
-{
- int i, shots;
- ship_t *sp;
-
- if (who)
- sp = cpuship; /* count cpu shots */
- else
- sp = plyship; /* count player shots */
-
- for (i=0, shots = 0; i < SHIPTYPES; i++, sp++)
- {
- if (sp->hits >= sp->length)
- continue; /* dead ship */
- else
- shots++;
- }
- return(shots);
-}
-
-int
-main(argc, argv)
-int argc;
-char *argv[];
-{
- /* revoke */
- setgid(getgid());
-
- do_options(argc, argv);
-
- intro();
- do {
- initgame();
- while(awinna() == -1)
- {
- if (!blitz)
- {
- if (!salvo)
- {
- if(turn)
- (void) cputurn();
- else
- (void) plyturn();
- }
- else
- {
- int i;
-
- i = scount(turn);
- while (i--)
- {
- if (turn)
- {
- if (cputurn() && awinna() != -1)
- i = 0;
- }
- else
- {
- if (plyturn() && awinna() != -1)
- i = 0;
- }
- }
- }
- }
- else
- while(turn ? cputurn() : plyturn())
- continue;
- turn = OTHER;
- }
- } while
- (playagain());
- uninitgame();
- /*NOTREACHED*/
- exit(0);
- /*NOTREACHED*/
-}
-
-/* bs.c ends here */