pipe as comment character for network

uttt.c

@@ -107,7 +107,7 @@ int ut_move(struct ut_state *new_state, const struct ut_state *old_state, int ro
 	return 0;
 }
 
-void ut_show(const struct ut_state *state, FILE *file) {
+void ut_show(const struct ut_state *state, FILE *file, bool as_comment) {
 	#define tiles state->tiles
 	printf("Turn: %c\nPlay board: %d\n", (int)state->player, state->playBoard);
 	int play_board_row = -1;
@@ -116,13 +116,13 @@ void ut_show(const struct ut_state *state, FILE *file) {
 		play_board_row = state->playBoard / 3;
 		play_board_col = state->playBoard % 3;
 	}
-	fprintf(file, "  012 345 678\n");
+	fprintf(file, "%s  012 345 678\n", as_comment ? "| " : "");
 	for(int y = 0; y < 9; y++)
 	{
 		if (y == 3 || y == 6) {
-			fprintf(file, "  ---+---+---\n");
+			fprintf(file, "%s  ---+---+---\n", as_comment ? "| " : "");
 		}
-		fprintf(file, "%d ", y);
+		fprintf(file, "%s%d ", as_comment ? "| " : "", y);
 		for(int x = 0; x < 9; x++)
 		{
 			if (x == 3 || x == 6) {
@@ -136,9 +136,9 @@ void ut_show(const struct ut_state *state, FILE *file) {
 	fputc('\n', file);
 	}
 	if (play_board_col == -1) {
-		fprintf(file, "  ^^^ ^^^ ^^^");
+		fprintf(file, "%s  ^^^ ^^^ ^^^", as_comment ? "| " : "");
 	} else {
-		fprintf(file, "  ");
+		fprintf(file, "%s  ", as_comment ? "| " : "");
 		for (int i = 0; i < play_board_col; i++) {
 			fprintf(file, "    ");
 		}
@@ -210,7 +210,7 @@ void getpos_net(const struct ut_state *state, int conn, FILE* conn_file, int *x,
 		} else {
 			if (byte == '\n') {
 				printf("Partner ended line before coords were complete - retrying\n");
-				fprintf(conn_file, "Invalid coordinates. Try again: ");
+				fprintf(conn_file, "| Invalid coordinates. Try again: ");
 				fflush(conn_file);
 				continue;
 			}
@@ -219,7 +219,7 @@ void getpos_net(const struct ut_state *state, int conn, FILE* conn_file, int *x,
 			if (n == 0) {goto conn_closed;}
 			if (byte == '\n') {
 				printf("Partner ended line before coords were complete - retrying\n");
-				fprintf(conn_file, "Invalid coordinates. Try again: ");
+				fprintf(conn_file, "| Invalid coordinates. Try again: ");
 				fflush(conn_file);
 				continue;
 			}
@@ -227,7 +227,7 @@ void getpos_net(const struct ut_state *state, int conn, FILE* conn_file, int *x,
 			if (n == 0) {goto conn_closed;}
 			if (byte == '\n') {
 				printf("Partner ended line before coords were complete - retrying\n");
-				fprintf(conn_file, "Invalid coordinates. Try again: ");
+				fprintf(conn_file, "| Invalid coordinates. Try again: ");
 				fflush(conn_file);
 				continue;
 			}
@@ -236,7 +236,7 @@ void getpos_net(const struct ut_state *state, int conn, FILE* conn_file, int *x,
 			if (n == 0) {goto conn_closed;}
 			if (byte != '\n') {
 				printf("Partner sent extra data after coords were complete - ignoring and retrying\n");
-				fprintf(conn_file, "Invalid coordinates. Try again: ");
+				fprintf(conn_file, "| Invalid coordinates. Try again: ");
 				fflush(conn_file);
 				// ignore the rest of this line
 				for (int i = 0; i < MAX_LINE_LEN; i++) {
@@ -273,7 +273,7 @@ void finish(int sig)
 void ut_local_game(struct ut_state *state) {
 	int x, y;
 	while (true) {
-		ut_show(state, stdout);
+		ut_show(state, stdout, false);
 		ut_show_boards(state);
 		bool ok = getpos(state, &x, &y);
 		if (!ok) {continue;}
@@ -299,23 +299,23 @@ void ut_host_game(struct ut_state *state, int conn, char host_player) {
 	printf("You play as %c.\n", host_player);
 	FILE* conn_file = fdopen(conn, "w");
 	while (true) {
-		ut_show(state, stdout);
+		ut_show(state, stdout, false);
 		ut_show_boards(state);
-		ut_show(state, conn_file);
+		ut_show(state, conn_file, true);
 		if (state->player == host_player) {
-			fprintf(conn_file, "Waiting for game partner ...\n");
+			fprintf(conn_file, "| Waiting for game partner ...\n");
 			fflush(conn_file);
 			bool ok = getpos(state, &x, &y);
 			if (!ok) {continue;}
 		} else {
 			printf("Waiting for game partner ...\n");
-			fprintf(conn_file, "Place token %c in position x,y: ", ut_turn(host_player));
+			fprintf(conn_file, "| Place token %c in position x,y: ", ut_turn(host_player));
 			fflush(conn_file);
 			getpos_net(state, conn, conn_file, &x, &y);
 		}
 		int err = ut_move(state, state, y, x);
 		if (err) {continue;}
-		fputc('\n', conn_file);
+		fprintf(conn_file, "|\n");
 		char w = ut_winner((char *)state->boards, 0, 3);
 		if(w)
 		{