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- /*
- * battle.c - original author: Bruce Holloway
- * mods by: Chuck A DeGaul
- */
- #include <stdio.h>
- #include <curses.h>
- #include <signal.h>
-
- /* #define BSD 1 /* Define BSD if compiling for BSD Unix */
-
- #ifdef BSD
- #define beep() write(1,"\007",1);
- #define saveterm savetty
- #define resetterm resetty
- #endif
-
- #define OTHER 1-turn
-
- /* following #ifdef constants are now unnecessary, use the - options */
- /*#define NOBLITZ 0 */ /* Defined if HITs don't mean you get to
- continue wiping out your opponent. */
- /*#define NOASK 0 */ /* Defined if the computer figures out whether
- it hits without bothering yout about it. */
- /*#define SEEMISS 0 */ /* Defined if the player sees the computer's
- misses. */
-
- char numbers[] = " 0 1 2 3 4 5 6 7 8 9";
-
- char carrier[] = "Aircraft Carrier";
- char battle[] = "Battleship";
- char sub[] = "Submarine";
- char destroy[] = "Destroyer";
- char ptboat[] = "PT Boat";
-
- char name[40];
- char dftname[] = "Stranger";
-
- struct _ships {
- char *name;
- char symbol;
- char length;
- char start; /* Coordinates - 0,0=0; 10,10=100. */
- char dir; /* Direction - 0 = right; 1 = down. */
- char hits; /* How many times has this ship been hit? (-1==sunk) */
- };
-
- struct _ships plyship[] = {
- { carrier,'A',5,0,0,0 },
- { battle,'B',4,0,0,0 },
- { destroy,'D',3,0,0,0 },
- { sub,'S',3,0,0,0 },
- { ptboat,'P',2,0,0,0 },
- };
-
- struct _ships cpuship[] = {
- { carrier,'A',5,0,0,0 },
- { battle,'B',4,0,0,0 },
- { destroy,'D',3,0,0,0 },
- { sub,'S',3,0,0,0 },
- { ptboat,'P',2,0,0,0 },
- };
-
- char hits[2][100], board[2][100]; /* "Hits" board, and main board. */
-
- int srchstep;
- int cpuhits;
- int cstart, cdir;
- int plywon=0, cpuwon=0; /* How many games has each won? */
- int turn; /* 0=player, 1=computer */
- int huntoffs; /* Offset on search strategy */
-
- int salvo, blitz, ask, seemiss, do_options(); /* options */
-
- main(argc, argv)
- int argc;
- char *argv[];
- {
- do_options(argc, argv);
-
- intro();
- do {
- initgame();
- while(awinna() == -1) {
- if (!blitz) {
- if (!salvo) {
- if(turn) cputurn(); else plyturn();
- } else {
- register int i;
-
- i = scount(turn);
- while (i--) {
- if (turn) {
- if (cputurn()) {
- if (awinna() != -1) {
- i = 0;
- }
- }
- } else {
- if(plyturn()) {
- if (awinna() != -1) {
- i = 0;
- }
- }
- }
- }
- }
- } else {
- while((turn) ? cputurn() : plyturn());
- }
- turn = OTHER;
- }
- } while(playagain());
- uninitgame();
- }
-
- #define PR addstr
-
- intro(){
- int uninitgame();
- #ifndef AMIGA
- extern char *getlogin();
- #endif
- char *tmpname;
-
- srand(time(0L)); /* Kick the random number generator */
-
- signal(SIGINT,uninitgame);
- #ifndef AMIGA
- if(signal(SIGQUIT,SIG_IGN) != SIG_IGN) signal(SIGQUIT,uninitgame);
- #endif
-
- #ifndef AMIGA
- if(tmpname = getlogin())
- strcpy(name,tmpname);
- else
- #endif
- strcpy(name,dftname);
- name[0] = toupper(name[0]);
-
- initscr();
- #ifndef AMIGA
- saveterm();
- #endif
- nonl(); cbreak(); noecho();
- clear();
- mvaddstr(4,29,"Welcome to Battleship!");
- 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");
- mvaddstr(20,27,"Hit any key to continue..."); refresh();
- getch();
- }
-
- initgame(){
- int i;
-
- clear();
- mvaddstr(0,35,"BATTLESHIP");
- mvaddstr(4,12,"Main Board");
- mvaddstr(6,0,numbers);
- move(7,0);
- for(i=0; i<10; ++i){
- printw("%c . . . . . . . . . . %c\n",i+'A',i+'A');
- }
- mvaddstr(17,0,numbers);
- mvaddstr(4,55,"Hit/Miss Board");
- mvaddstr(6,45,numbers);
- for(i=0; i<10; ++i){
- mvprintw(7+i,45,"%c . . . . . . . . . . %c",i+'A',i+'A');
- }
- mvaddstr(17,45,numbers);
- for(turn=0; turn<2; ++turn)
- for(i=0; i<100; ++i){
- hits[turn][i] = board[turn][i] = 0;
- }
- for(turn=0; turn<2; ++turn){
- for(i=0; i<5; ++i)
- if(!turn) plyplace(&plyship[i]);
- else cpuplace(&cpuship[i]);
- }
- turn = rnd(2);
- cstart = cdir = -1;
- cpuhits = 0;
- srchstep = 3;
- huntoffs = rnd(srchstep);
- }
-
- rnd(n)
- int n;
- {
- return(((rand() & 0x7FFF) % n));
- }
-
- plyplace(ss)
- struct _ships *ss;
- {
- int c, d;
-
- do{
- prompt();
- printw("Place your %s (ex.%c%d) ? ",ss->name,rnd(10)+'A',rnd(10));
- c = getcoord();
- d = getdir();
- } while(!checkplace(ss,c,d));
- placeship(ss,c,d);
- }
-
- getdir(){
- int d;
-
- prompt(); addstr("What direction (0=right, 1=down) ? ");
- return(sgetc("01")-'0');
- }
-
- placeship(ss,c,d)
- struct _ships *ss;
- int c, d;
- {
- int x, y, l, i;
-
- for(l=0; l<ss->length; ++l){
- i = c + l * ((d) ? 10 : 1);
- board[turn][i] = ss->symbol;
- x = (i % 10) * 3 + 3;
- y = (i / 10) + 7;
- if(!turn) mvaddch(y,x,ss->symbol);
- }
- ss->start = c;
- ss->dir = d;
- ss->hits = 0;
- }
-
- checkplace(ss,c,d)
- struct _ships *ss;
- int c, d;
- {
- int x, y, l;
-
- x = c%10; y = c/10;
- if(((x+ss->length) > 10 && !d) || ((y+ss->length) > 10 && d==1)){
- if(!turn)
- 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){
- x = c + l * ((d) ? 10 : 1);
- if(board[turn][x]){
- if(!turn)
- 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(0);
- }
- }
- return(1);
- }
-
- error(s)
- char *s;
- {
- prompt(); beep();
- printw("%s -- hit any key to continue --",s);
- refresh();
- getch();
- }
-
- prompt(){
- move(22,0); clrtoeol();
- }
-
- #ifndef ARCH
- #ifndef __arm
- toupper(ch)
- int ch;
- {
- return((ch >= 'a' && ch <= 'z') ? ch-'a'+'A' : ch);
- }
- #endif
- #endif
-
- getcoord(){
- int ch, x, y, oldx, oldy;
-
- redo:
- y = sgetc("ABCDEFGHIJ");
- do{
- ch = getch();
- if(ch == 0x7F || ch == 8){
- addstr("\b \b"); refresh();
- goto redo;
- }
- } while(ch < '0' || ch > '9');
- addch(x=ch); refresh();
- return((y-'A')*10+x-'0');
- }
-
- cpuplace(ss)
- struct _ships *ss;
- {
- int c, d;
-
- do{
- c = rnd(100); d = rnd(2);
- } while(!checkplace(ss,c,d));
- placeship(ss,c,d);
- }
-
- awinna(){
- int i, j;
- struct _ships *ss;
-
- for(i=0; i<2; ++i){
- ss = (i) ? cpuship : plyship;
- for(j=0; j<5; ++j, ++ss)
- if(ss->length != ss->hits)
- break;
- if(j == 5) return(OTHER);
- }
- return(-1);
- }
-
- plyturn(){
- int c, res, i;
- char *m;
-
- prompt();
- addstr("Where do you want to shoot? ");
- c = getcoord();
- if(!(res = hits[turn][c])){
- hits[turn][c] = res = (board[OTHER][c]) ? 'H' : 'M';
- mvaddch(7+c/10,48+3*(c%10),(res=='H') ? 'H' : 'o');
- if(c = hitship(c)){
- prompt();
- switch(rnd(3)){
- case 0:
- m = "You sank my %s!";
- break;
- case 1:
- m = "I have this sinking feeling about my %s....";
- break;
- case 2:
- m = "Have some mercy for my %s!";
- break;
- }
- move(23,0); clrtoeol(); beep();
- printw(m,cpuship[c-1].name); refresh();
- return(awinna() == -1);
- }
- }
- prompt();
- move(23,0); clrtoeol();
- printw("You %s.",(res=='M')?"missed":"scored a hit"); refresh();
- return(res == 'H');
- }
-
- hitship(c)
- int c;
- {
- struct _ships *ss;
- int sym, i, j;
-
- ss = (turn) ? plyship : cpuship;
- if(!(sym = board[OTHER][c])) return(0);
- for(i=0; i<5; ++i, ++ss)
- if(ss->symbol == sym){
- j = ss->hits; ++j; ss->hits = j;
- if(j == ss->length) return(i+1);
- return(0);
- }
- }
-
- cputurn(){
- int c, res, x, y, i, d;
-
- redo:
- if(cstart == -1){
- if(cpuhits){
- for(i=0, c=rnd(100); i<100; ++i, c = (c+1) % 100)
- if(hits[turn][c] == 'H')
- break;
- if(i != 100){
- cstart = c;
- cdir = -1;
- goto fndir;
- }
- }
- do{
- i = 0;
- do{
- while(hits[turn][c=rnd(100)]);
- x = c % 10; y = c / 10;
- if(++i == 1000) break;
- } while(((x+huntoffs) % srchstep) != (y % srchstep));
- if(i == 1000) --srchstep;
- } while(i == 1000);
- }
- else if(cdir == -1){
- fndir: for(i=0, d=rnd(4); i++ < 4; d = (d+1) % 4){
- x = cstart%10; y = cstart/10;
- switch(d){
- case 0: ++x; break;
- case 1: ++y; break;
- case 2: --x; break;
- case 3: --y; break;
- }
- if(x<0 || x>9 || y<0 || y>9) continue;
- if(hits[turn][c=y*10+x]) continue;
- cdir = -2;
- break;
- }
- if(i == 4){
- cstart = -1;
- goto redo;
- }
- }
- else{
- x = cstart%10; y = cstart/10;
- switch(cdir){
- case 0: ++x; break;
- case 1: ++y; break;
- case 2: --x; break;
- case 3: --y; break;
- }
- if(x<0 || x>9 || y<0 || y>9 || hits[turn][y*10+x]){
- cdir = (cdir+2) % 4;
- for(;;){
- switch(cdir){
- case 0: ++x; break;
- case 1: ++y; break;
- case 2: --x; break;
- case 3: --y; break;
- }
- if(x<0 || x>9 || y<0 || y>9){ cstart = -1; goto redo; }
- if(!hits[turn][y*10+x]) break;
- }
- }
- c = y*10 + x;
- }
-
- if (!ask) {
- res = (board[OTHER][c]) ? 'H' : 'M';
- move(21,0); clrtoeol();
- printw("I shoot at %c%d. I %s!",c/10+'A',c%10,(res=='H')?"hit":"miss");
- } else {
- for(;;){
- prompt();
- printw("I shoot at %c%d. Do I (H)it or (M)iss? ",c/10+'A',c%10);
- res = sgetc("HM");
- if((res=='H' && !board[OTHER][c]) || (res=='M' && board[OTHER][c])){
- error("You lie!");
- continue;
- }
- break;
- }
- addch(res);
- }
- hits[turn][c] = res;
- if(res == 'H') {
- ++cpuhits;
- if(cstart == -1) cdir = -1;
- cstart = c;
- if(cdir == -2) cdir = d;
- mvaddch(7+(c/10),3+3*(c%10),'*');
- if (blitz && !ask) {
- refresh();
- sleep(1);
- }
- }
- else {
- if (seemiss) {
- mvaddch(7+(c/10),3+3*(c%10),' ');
- } else {
- if(cdir == -2) cdir = -1;
- }
- }
- if(c=hitship(c)){
- cstart = -1;
- cpuhits -= plyship[c-1].length;
- x = plyship[c-1].start;
- d = plyship[c-1].dir;
- y = plyship[c-1].length;
- for(i=0; i<y; ++i){
- hits[turn][x] = '*';
- x += (d) ? 10 : 1;
- }
- }
- if (salvo && !ask) {
- refresh();
- sleep(1);
- }
- if(awinna() != -1) return(0);
- return(res == 'H');
- }
-
- playagain(){
- int i, x, y, dx, dy, j;
-
- for(i=0; i<5; ++i){
- x = cpuship[i].start; y = x/10+7; x = (x % 10) * 3 + 48;
- dx = (cpuship[i].dir) ? 0 : 3;
- dy = (cpuship[i].dir) ? 1 : 0;
- for(j=0; j < cpuship[i].length; ++j){
- mvaddch(y,x,cpuship[i].symbol);
- x += dx; y += dy;
- }
- }
-
- if(awinna()) ++cpuwon; else ++plywon;
- i = 18 + strlen(name);
- if(plywon >= 10) ++i;
- if(cpuwon >= 10) ++i;
- mvprintw(2,(80-i)/2,"%s: %d Computer: %d",name,plywon,cpuwon);
-
- prompt();
- printw((awinna()) ? "Want to be humiliated again, %s? "
- : "Going to give me a chance for revenge, %s? ",name);
- return(sgetc("YN") == 'Y');
- }
-
- uninitgame(){
- refresh();
- #ifndef AMIGA
- resetterm();
- #endif
- echo();
- endwin();
- exit(0);
- }
-
- sgetc(s)
- char *s;
- {
- char *s1;
- int ch;
-
- refresh();
- for(;;){
- ch = toupper(getch());
- if(ch == 3) uninitgame();
- for(s1=s; *s1 && ch != *s1; ++s1);
- if(*s1){
- addch(ch); refresh();
- return(ch);
- }
- }
- }
-
- /*
- * I should use getopts() from libc.a, but I'm leary that other UNIX
- * systems might not have it, although I'd love to use it.
- */
- int
- do_options(c,op)
- int c;
- char *op[];
- {
- register int i;
-
- if (c > 1) {
- for (i=1; i<c; i++) {
- switch(op[i][0]) {
- default:
- case '?':
- fprintf(stderr, "Usage: battle [ -s | -b ] [ -a ] [ -m ]\n");
- fprintf(stderr, "\tWhere the options are:\n");
- fprintf(stderr, "\t-s : play a salvo game (mutex with -b)\n");
- fprintf(stderr, "\t-b : play a blitz game (mutex with -s)\n");
- fprintf(stderr, "\t-a : computer asks you for hit/miss\n");
- fprintf(stderr, "\t-m : computer misses are displayed\n");
- exit(1);
- break;
- case '-':
- switch(op[i][1]) {
- case 'b':
- blitz = 1;
- if (salvo == 1) {
- fprintf(stderr,
- "Bad Arg: -b and -s are mutually exclusive\n");
- exit(1);
- }
- break;
- case 's':
- salvo = 1;
- if (blitz == 1) {
- fprintf(stderr,
- "Bad Arg: -s and -b are mutually exclusive\n");
- exit(1);
- }
- break;
- case 'a':
- ask = 1;
- break;
- case 'm':
- seemiss = 1;
- break;
- default:
- fprintf(stderr,
- "Bad Arg: type \"%s ?\" for usage message\n", op[0]);
- exit(1);
- }
- }
- }
- #ifndef NOCOMMENT
- fprintf(stdout, "Playing optional game (");
- if (salvo) {
- fprintf(stdout, "salvo, noblitz, ");
- } else if (blitz) {
- fprintf(stdout, "blitz, nosalvo, ");
- } else {
- fprintf(stdout, "noblitz, nosalvo, ");
- }
- if (ask) {
- fprintf(stdout, "ask, ");
- } else {
- fprintf(stdout, "noask, ");
- }
- if (seemiss) {
- fprintf(stdout, "seemiss)\n");
- } else {
- fprintf(stdout, "noseemiss)\n");
- }
- } else {
- fprintf(stdout,
- "Playing standard game (noblitz, noslavo, noask, noseemiss)\n");
- #endif
- }
- #ifndef __arm
- sleep(2);
- #endif
- return(0);
- }
-
- int
- scount(who)
- int who;
- {
- register int i, shots;
- register struct _ships *sp;
-
- if (who) {
- /* count cpu shots */
- sp = cpuship;
- } else {
- /* count player shots */
- sp = plyship;
- }
- for (i=0, shots = 0; i<5; i++, sp++) {
- /* extra test for machines with unsigned chars! */
- if (sp->hits == (char) -1 || sp->hits >= sp->length) {
- continue; /* dead ship */
- } else {
- shots++;
- }
- }
- return(shots);
- }
-
- #ifdef AMIGA
- #ifndef __arm
- sleep(n)
- {
- Delay(50 * n);
- }
- #endif
- #endif
-