progress

uttt.c

@@ -10,6 +10,9 @@
 #include <arpa/inet.h>
 #include <string.h>
 #include <errno.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 struct ut_state
 {
@@ -142,6 +145,15 @@ void ut_show(const struct ut_state *state) {
     #undef tiles
 }
 
+void ut_show_boards(const struct ut_state *state) {
+	for (int j = 0; j < 3; j++) {
+		for (int i = 0; i < 3; i++) {
+			putchar(state->boards[j][i]);
+		}
+		putchar('\n');
+	}
+}
+
 bool getpos(const struct ut_state *state, int *x, int *y) {
 	while (true) {
 		printf("Place token %c at position x,y: ", state->player);
@@ -173,6 +185,10 @@ bool getpos(const struct ut_state *state, int *x, int *y) {
 	return true;
 }
 
+bool getpos_net(const struct ut_state *state, int conn, int *x, int *y) {
+	//recv(conn, )
+}
+
 void finish(int sig)
 {
 	putchar('\n');
@@ -182,16 +198,11 @@ void finish(int sig)
 }
 
 void ut_local_game(struct ut_state *state) {
+	int x, y;
 	while (true) {
-		int x, y;
 		ut_show(state);
-		for (int j = 0; j < 3; j++) {
-			for (int i = 0; i < 3; i++) {
-				putchar(state->boards[j][i]);
-			}
-			putchar('\n');
-		}
-		bool ok = getpos(state, &y, &x);
+		ut_show_boards(state);
+		bool ok = getpos(state, &x, &y);
 		if (!ok) {continue;}
 		int err = ut_move(state, state, x, y);
 		if (err) {continue;}
@@ -210,8 +221,34 @@ void ut_local_game(struct ut_state *state) {
 	}
 }
 
-void ut_host_game(struct ut_state *state, int sock) {
-	printf(":P\n");
+void ut_host_game(struct ut_state *state, int conn, char host_player) {
+	int x, y;
+	printf("You play as %c.\n", host_player);
+	while (true) {
+		ut_show(state);
+		ut_show_boards(state);
+		if (state->player == host_player) {
+			bool ok = getpos(state, &x, &y);
+			if (!ok) {continue;}
+			int err = ut_move(state, state, x, y);
+			if (err) {continue;}
+		} else {
+			printf("Waiting for game parter ...");
+			getpos_net(state, conn, &x, &y);
+		}
+		char w = ut_winner((char *)state->boards, 0, 3);
+		if(w)
+		{
+			if(w == ' ')
+			{
+				printf("\nDraw!\n");
+			}
+			else
+			{
+				printf("\n%c wins!\n", (int)w);
+			}
+		}
+	}
 }
 
 int main(int argc, char **argv) {
@@ -231,16 +268,36 @@ int main(int argc, char **argv) {
 			.sin_port = htons(6669),
 			.sin_addr = { .s_addr = htonl(0x7f000001) },
 		};
+		setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &(int){1}, sizeof(int));
 		if (bind(sock, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
 			int errsv = errno;
 			printf("error %d\n", errsv);
 			return 1;
 		}
-		ut_host_game(&state, sock);
+		if (listen(sock, 128) == -1) {
+			int errsv = errno;
+			printf("error %d\n", errsv);
+			return 1;
+		}
+		printf("Waiting for game partner at 127.0.0.1:6669 ...\n");
+		int conn = accept(sock, NULL, NULL);
+		if (conn == -1) {
+			int errsv = errno;
+			printf("error %d\n", errsv);
+			return 1;
+		}
+		int random = open("/dev/urandom", O_RDONLY);
+		int byte;
+		read(random, &byte, 1);
+		//printf("%d\n", byte);
+		char host_player = byte % 2 == 0 ? 'X' : 'O';
+		//printf("%c\n", host_player);
+		ut_host_game(&state, conn, host_player);
 	} else if (strncmp(argv[1], arg_join, strlen(arg_join)) == 0) {
 		printf("no ;)\n");
 	} else {
 		printf("%s\n", argv[1]);
 	}
 	return 0;
+
 }