--help text. send decoration only when host (WIP).
このコミットが含まれているのは:
ninya9k
コミット
bb0074ac1c
214
uttt.c
214
uttt.c
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@ -21,14 +21,25 @@ struct ut_state
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char boards[3][3];
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int playBoard;
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char player;
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char host_player;
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};
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const struct ut_state ut_initial = {
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.boards = {0},
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.tiles = {0},
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.playBoard = -1,
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.player = 'X'
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.player = 'X',
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.host_player = '\0',
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};
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const char *HELP_TEXT = "\
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Usage: uttt (--local | --host | --join)\n\
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\n\
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--local play non-network game\n\
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--host host game at 127.0.0.1:6669\n\
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--join join game at 127.0.0.1:6669\n\
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";
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const char *arg_local = "--local";
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const char *arg_host = "--host";
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const char *arg_join = "--join";
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@ -42,6 +53,13 @@ char ut_turn(char player)
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}
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}
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int ut_random_player(char *player) {
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int random = open("/dev/urandom", O_RDONLY);
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if (read(random, player, 1) < 0) {return errno;}
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*player = *player % 2 == 0 ? 'X' : 'O';
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return 0;
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}
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#define T(r, c) (tiles[offset + stride * r + c])
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char ut_winner(const char *tiles, int offset, int stride) {
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@ -304,7 +322,7 @@ int ut_cursprintf(const char *restrict format, ...)
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void ut_show(const struct ut_state *state, int fd, bool as_comment) {
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#define tiles state->tiles
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ut_dprintf(fd, "%sTurn: %c\nPlay board: %d\n", as_comment ? "| " : "", (int)state->player, state->playBoard);
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ut_dprintf(fd, "%sTurn: %c\n%sPlay board: %d\n", as_comment ? "| " : "", (int)state->player, as_comment ? "| " : "", state->playBoard);
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int play_board_row = -1;
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int play_board_col = -1;
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if (state->playBoard != -1) {
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@ -383,65 +401,61 @@ bool getpos(const struct ut_state *state, int *x, int *y) {
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return true;
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}
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void getpos_net(const struct ut_state *state, int conn, int *x, int *y) { // TODO
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void getpos_net(const struct ut_state *state, int sock, int *x, int *y) { // TODO
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const int MAX_LINE_LEN = 120;
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char byte;
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int n;
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while (true) {
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n = recv(conn, &byte, 1, 0);
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n = recv(sock, &byte, 1, 0);
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if (n == 0) {goto conn_closed;}
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if (byte == '|') {
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// ignore this line
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for (int i = 0; i < MAX_LINE_LEN; i++) {
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n = recv(conn, &byte, 1, 0);
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n = recv(sock, &byte, 1, 0);
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if (n == 0) {goto conn_closed;}
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if (byte == '\n') {break;}
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}
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if (byte != '\n') {
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printf("Partner sent too much data in one comment line - exiting\n");
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close(conn);
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close(sock);
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exit(1);
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}
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} else {
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if (byte == '\n') {
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printf("Partner ended line before coords were complete - retrying\n");
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ut_dprintf(conn_file, "| Invalid coordinates. Try again: ");
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fflush(conn_file);
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ut_dprintf(sock, "| Invalid coordinates. Try again: ");
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continue;
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}
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*x = byte - 0x30;
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n = recv(conn, &byte, 1, 0);
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n = recv(sock, &byte, 1, 0);
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if (n == 0) {goto conn_closed;}
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if (byte == '\n') {
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printf("Partner ended line before coords were complete - retrying\n");
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ut_dprintf(conn_file, "| Invalid coordinates. Try again: ");
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fflush(conn_file);
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ut_dprintf(sock, "| Invalid coordinates. Try again: ");
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continue;
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}
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n = recv(conn, &byte, 1, 0);
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n = recv(sock, &byte, 1, 0);
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if (n == 0) {goto conn_closed;}
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if (byte == '\n') {
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printf("Partner ended line before coords were complete - retrying\n");
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ut_dprintf(conn_file, "| Invalid coordinates. Try again: ");
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fflush(conn_file);
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ut_dprintf(sock, "| Invalid coordinates. Try again: ");
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continue;
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}
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*y = byte - 0x30;
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n = recv(conn, &byte, 1, 0);
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n = recv(sock, &byte, 1, 0);
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if (n == 0) {goto conn_closed;}
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if (byte != '\n') {
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printf("Partner sent extra data after coords were complete - ignoring and retrying\n");
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ut_dprintf(conn_file, "| Invalid coordinates. Try again: ");
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fflush(conn_file);
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ut_dprintf(sock, "| Invalid coordinates. Try again: ");
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// ignore the rest of this line
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for (int i = 0; i < MAX_LINE_LEN; i++) {
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n = recv(conn, &byte, 1, 0);
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n = recv(sock, &byte, 1, 0);
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if (n == 0) {goto conn_closed;}
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if (byte == '\n') {break;}
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}
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if (byte != '\n') {
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printf("Partner sent too much extra data - exiting\n");
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close(conn);
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close(sock);
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exit(1);
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}
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continue;
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@ -506,10 +520,10 @@ void finish(int sig)
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return 0;
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}*/
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void ut_local_game(struct ut_state *state) { // TODO replace with from ncurses main
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int ut_local_game(struct ut_state *state) { // TODO replace with from ncurses main
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int x, y;
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while (true) {
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ut_show(state, stdout, false);
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ut_show(state, 1, false);
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ut_show_boards(state);
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bool ok = getpos(state, &x, &y);
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if (!ok) {continue;}
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@ -526,32 +540,36 @@ void ut_local_game(struct ut_state *state) { // TODO replace with from ncurses m
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{
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printf("\n%c wins!\n", (int)w);
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}
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break;
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}
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}
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return 0;
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}
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void ut_network_game(struct ut_state *state, int conn, FILE* conn_file, char player) { // TODO
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int ut_network_game(struct ut_state *state, int sock, char player) { // TODO
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int x, y;
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bool host = player == state->host_player;
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printf("You play as %c.\n", player);
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while (true) {
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ut_show(state, stdout, false);
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ut_show(state, 1, false);
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ut_show_boards(state);
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ut_show(state, conn_file, true);
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ut_show(state, sock, true);
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if (state->player == player) {
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ut_dprintf(conn_file, "| Waiting for game partner ...\n");
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fflush(conn_file);
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if (host) {ut_dprintf(sock, "| Waiting for game partner ...\n");}
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bool ok = getpos(state, &x, &y);
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if (!ok) {continue;}
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ut_dprintf(conn_file, "%d,%d\n", x, y);
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ut_dprintf(sock, "%d,%d\n", x, y);
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} else {
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printf("Waiting for game partner ...\n");
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ut_dprintf(conn_file, "| Place token %c in position x,y: ", ut_turn(player));
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fflush(conn_file);
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getpos_net(state, conn, conn_file, &x, &y);
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if (host) {
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ut_dprintf(sock, "|\n"); // aligns game board each turn
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ut_dprintf(sock, "| Place token %c in position x,y: ", ut_turn(player));
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}
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getpos_net(state, sock, &x, &y);
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}
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int err = ut_move(state, state, y, x);
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if (err) {continue;}
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ut_dprintf(conn_file, "|\n");
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ut_dprintf(sock, "|\n");
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char w = ut_winner((char *)state->boards, 0, 3);
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if(w)
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{
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@ -567,71 +585,85 @@ void ut_network_game(struct ut_state *state, int conn, FILE* conn_file, char pla
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}
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}
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int ut_host_game(struct ut_state *state) {
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int sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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const struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_port = htons(6669),
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.sin_addr = { .s_addr = htonl(0x7f000001) },
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};
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setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &(int){1}, sizeof(int));
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if (bind(sock, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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if (listen(sock, 128) == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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printf("Waiting for game partner at 127.0.0.1:6669 ...\n");
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int conn = accept(sock, NULL, NULL);
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if (conn == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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// decide X or O
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if (ut_random_player(&state->host_player) != 0) {return 1;}
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// tell partner X or O
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ut_dprintf(conn, "%c\n", ut_turn(state->host_player)); // TODO
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return ut_network_game(state, conn, state->host_player);
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}
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int ut_join_game(struct ut_state *state) {
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int sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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const struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_port = htons(6666),
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.sin_addr = { .s_addr = htonl(0x7f000001) },
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};
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printf("Connecting to game host at 127.0.0.1:6669 ...\n");
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connect(sock, (struct sockaddr*)&addr, sizeof(addr));
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// host decides X or O
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char player;
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int r = ut_readfill(sock, &player, 1);
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if (r == 2) {printf("Connection closed.\n");}
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if (r != 0) {return 1;}
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state->host_player = ut_turn(player);
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return ut_network_game(state, sock, player);
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}
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int main(int argc, char **argv) {
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signal(SIGINT, finish);
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struct ut_state state = ut_initial;
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if (argc < 2) {
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ut_local_game(&state);
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if (argc != 2) {
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printf(HELP_TEXT);
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return 1;
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} else if (strncmp(argv[1], arg_local, strlen(arg_local)) == 0) {
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return ut_local_game(&state);
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} else if (strncmp(argv[1], arg_host, strlen(arg_host)) == 0) {
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int sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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const struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_port = htons(6669),
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.sin_addr = { .s_addr = htonl(0x7f000001) },
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};
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setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &(int){1}, sizeof(int));
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if (bind(sock, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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if (listen(sock, 128) == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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printf("Waiting for game partner at 127.0.0.1:6669 ...\n");
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int conn = accept(sock, NULL, NULL);
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if (conn == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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FILE* conn_file = fdopen(conn, "w"); // TODO
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// decide X or O
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int random = open("/dev/urandom", O_RDONLY);
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int byte;
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read(random, &byte, 1);
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char player = byte % 2 == 0 ? 'X' : 'O';
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// tell partner X or O
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ut_dprintf(conn_file, "%c\n", ut_turn(player)); // TODO
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ut_network_game(&state, conn, conn_file, player);
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return ut_host_game(&state);
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} else if (strncmp(argv[1], arg_join, strlen(arg_join)) == 0) {
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int sock = socket(AF_INET, SOCK_STREAM, 0);
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if (sock == -1) {
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int errsv = errno;
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printf("error %d\n", errsv);
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return 1;
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}
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const struct sockaddr_in addr = {
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.sin_family = AF_INET,
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.sin_port = htons(6669),
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.sin_addr = { .s_addr = htonl(0x7f000001) },
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};
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printf("Connecting to game host at 127.0.0.1:6669 ...\n");
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connect(sock, (struct sockaddr*)&addr, sizeof(addr));
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FILE* sock_file = fdopen(sock, "w");
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char player_buf[2];
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if (recv(sock, &player_buf, 2, 0) != 2) {return 1;}
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ut_network_game(&state, sock, sock_file, player_buf[0]);
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return ut_join_game(&state);
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} else {
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printf("%s\n", argv[1]);
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printf(HELP_TEXT, argv[1]);
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return 1;
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}
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return 0;
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}
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