Take a 2 dimensional string in a txt file | Together C & C++ | Page 1

toxic shell Nov 9, 2024, 6:24 PM

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I do not know how to resolved it but my programmed kept getting the bug printing
Error reading map data

plucky lilyBOT Nov 9, 2024, 6:24 PM

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When your question is answered use !solved to mark the question as resolved.

Remember to ask specific questions, provide necessary details, and reduce your question to its simplest form. For tips on how to ask a good question use !howto ask.

toxic shell Nov 9, 2024, 6:24 PM

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here is the code

empty falcon Nov 9, 2024, 6:25 PM

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!code

plucky lilyBOT Nov 9, 2024, 6:25 PM

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How to Format Code on Discord

Markup

```c
int main() {}
```

Result

int main() {}

empty falcon Nov 9, 2024, 6:25 PM

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Also what is a "2 dimensional string"?

toxic shell Nov 9, 2024, 6:25 PM

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map[][]

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don’t really know how to call it

empty falcon Nov 9, 2024, 6:26 PM

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toxic shell map[][]

that's not legal C

toxic shell Nov 9, 2024, 6:26 PM

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I got this error
(0, 0) : Ç.
(0, 1) : ü.
(0, 2) : é.
(0, 3) : â.
(0, 4) : ä.
(0, 5) : à.
(0, 6) : å.
(0, 7) : ç.
(0, 8) : ê.
(0, 9) : ë.
(0, 10) : è.
(0, 11) : ï.
(0, 12) : î.
(0, 13) : ì.
(0, 14) : Ä.
(0, 15) : Å.
(0, 16) : É.
(1, 0) : Ç.
(1, 1) : ü.
(1, 2) : é.
(1, 3) : â.
(1, 4) : ä.
(1, 5) : à.
(1, 6) : å.
(1, 7) : ç.
(1, 8) : ê.
(1, 9) : ë.
(1, 10) : è.
(1, 11) : ï.
(1, 12) : î.
(1, 13) : ì.
(1, 14) : Ä.
(1, 15) : Å.
(1, 16) : É.
(2, 0) : Ç.
(2, 1) : ü.
(2, 2) : é.
(2, 3) : â.
(2, 4) : ä.
(2, 5) : à.
(2, 6) : å.
(2, 7) : ç.
(2, 8) : ê.
(2, 9) : ë.
(2, 10) : è.
(2, 11) : ï.
(2, 12) : î.
(2, 13) : ì.
(2, 14) : Ä.
(2, 15) : Å.
(2, 16) : É.
(3, 0) : Ç.
(3, 1) : ü.
(3, 2) : é.
(3, 3) : â.
(3, 4) : ä.
(3, 5) : à.
(3, 6) : å.
(3, 7) : ç.
(3, 8) : ê.
(3, 9) : ë.
(3, 10) : è.
(3, 11) : ï.
(3, 12) : î.
(3, 13) : ì.
(3, 14) : Ä.
(3, 15) : Å.
(3, 16) : É.
(4, 0) : Ç.
(4, 1) : ü.
(4, 2) : é.
(4, 3) : â.
(4, 4) : ä.
(4, 5) : à.
(4, 6) : å.
(4, 7) : ç.
(4, 8) : ê.
(4, 9) : ë.
(4, 10) : è.
(4, 11) : ï.
(4, 12) : î.
(4, 13) : ì.
(4, 14) : Ä.
(4, 15) : Å.
(4, 16) : É.
(5, 0) : Ç.
(5, 1) : ü.
(5, 2) : é.
(5, 3) : â.
(5, 4) : ä.
(5, 5) : à.
(5, 6) : å.
(5, 7) : ç.
(5, 8) : ê.
(5, 9) : ë.
(5, 10) : è.
(5, 11) : ï.
(5, 12) : î.
(5, 13) : ì.
(5, 14) : Ä.
(5, 15) : Å.
(5, 16) : É.
(6, 0) : Ç.
(6, 1) : ü.
(6, 2) : é.
(6, 3) : â.
(6, 4) : ä.
(6, 5) : à.
(6, 6) : å.
(6, 7) : ç.
(6, 8) : ê.
(6, 9) : ë.
(6, 10) : è.
(6, 11) : ï.
(6, 12) : î.
(6, 13) : ì.

toxic shell Nov 9, 2024, 6:26 PM

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empty falcon that's not legal C

Why ?

empty falcon Nov 9, 2024, 6:26 PM

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;compile

map[][]

plucky lodgeBOT Nov 9, 2024, 6:26 PM

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Compiler Output

<source>: In function 'main':
<source>:3:1: error: 'map' undeclared (first use in this function)
    3 | map[][]
      | ^~~
<source>:3:1: note: each undeclared identifier is reported only once for each function it appears in
<source>:3:5: error: expected expression before ']' token
    3 | map[][]
      |     ^
Build failed

toxic shell Nov 9, 2024, 6:27 PM

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yeah

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It’s
int NbCol = 17;
char map[NbCol][NbCol];

empty falcon Nov 9, 2024, 6:27 PM

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!vla

plucky lilyBOT Nov 9, 2024, 6:27 PM

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empty falcon !vla

What Is a VLA, and Why Is It "Bad"?

A Variable Length Array (VLA) is an array where the size is not constant and depends on a variable.

Example

int size = rand();
int vla[size]; // VLA of type int[size]
int not_vla[10]; // regular array of type int[10]
constexpr int size = 10;
int arr[size]; // also not a VLA, of type int[10]

Why Are VLAs "Bad"?

VLAs have poor compiler support and can lead to unsafe code. The core issue with VLAs is that the compiler doesn't know the size of the stack frame. Without warning flags like -Wvla, it can be easy to create a VLA by accident, even in C++ with some compilers.

Compiler Support

:white_check_mark: available since C99
:no_entry: not available in C++ at all
:no_entry: was never supported by MSVC
:warning: optional feature since C11
:warning: supported as non-standard extension by GCC, clang

toxic shell Nov 9, 2024, 6:28 PM

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ok but it’s for a school project don’t know how to print a board game differently

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I got this in my txt file

empty falcon Nov 9, 2024, 6:29 PM

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PLEASE! Use code blocks

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!code

plucky lilyBOT Nov 9, 2024, 6:29 PM

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How to Format Code on Discord

Markup

```c
int main() {}
```

Result

int main() {}

empty falcon Nov 9, 2024, 6:29 PM

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Cause that is most certainly not what your output looks like

toxic shell Nov 9, 2024, 6:30 PM

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2 17
1 9 1 @ 0 0 0
2 9 14 @ 16 0 0
- - - - -B- - - -

- - - - -B- - - -

- - - - - - - - -

- - - -B- - - - -

- - - -B- - - - -

- - - - - - - - -

- - - - - - - - -

- - - - - - - - -

- - - - - - - - -

empty falcon Nov 9, 2024, 6:30 PM

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Okay. I still don't understand what the printing has to do with the VLA

empty falcon Nov 9, 2024, 6:31 PM

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toxic shell It’s int NbCol = 17; char map[NbCol][NbCol];

I mean, just do this instead:

#define NbCol 17
...
char map[NbCol][NbCol];

toxic shell Nov 9, 2024, 6:31 PM

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It’s because I got this error

(9, 3) : â.
(9, 4) : ä.
(9, 5) : à.
(9, 6) : å.
(9, 7) : ç.
(9, 8) : ê.
(9, 9) : ë.
(9, 10) : è.
(9, 11) : ï.
(9, 12) : î.
(9, 13) : ì.
(9, 14) : Ä.
(9, 15) : Å.
(9, 16) : É.
(10, 0) : Ç.
Error reading map data at position (10, 0) : Ç.

empty falcon Nov 9, 2024, 6:31 PM

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!f

plucky lilyBOT Nov 9, 2024, 6:31 PM

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int loadGame(int* nbPlayers,
             struct Player P[],
             int* NbCol,
             char map[*NbCol][*NbCol]) {
  FILE* file = fopen("..//last_party.txt", "r");
  if (file == NULL) {
    printf("No saved game found.\n");
    return 0;
  }

  if (fscanf(file, "%d %d", nbPlayers, NbCol) != 2) {
    printf("Error reading number of players and number of columns.\n");

    fclose(file);
    return 0;
  }
  printf("nb col %d\n\n", *nbPlayers);
  for (int i = 0; i < *nbPlayers; i++) {
    P[i].name = malloc(30 * sizeof(char));
    if (fscanf(file, "%s %d %d %c %d %d %d", P[i].name, &P[i].nbBarriere,
               &P[i].color, &P[i].pawn, &P[i].posX, &P[i].posY,
               &P[i].score) != 7) {
      printf("Error reading player data.\n");
      fclose(file);
      return 0;
    }
  }

  for (int i = 0; i < *NbCol; i++) {
    for (int j = 0; j < *NbCol; j++) {
      printf("(%d, %d) : %c.\n", i, j, &map[i][j]);
      if (fscanf(file, "%c", &map[i][j]) != 1) {
        printf("Error reading map data at position (%d, %d) : %c.\n", i, j,
               &map[i][j]);
        fclose(file);
        return 0;
      }
    }
    fscanf(file, "\n");
  }

  fclose(file);
  return 1;
}

skavengers

toxic shell Nov 9, 2024, 6:32 PM

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The problem is that the saveGame function return an error with the "Error reading map data "

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and I don’t understand where the error are

empty falcon Nov 9, 2024, 6:34 PM

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What do you do there?

For example this line:

printf("(%d, %d) : %c.\n", i, j, &map[i][j]);
```What is it supposed to do?

toxic shell Nov 9, 2024, 6:34 PM

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I put this to see what I have of map from which coordinates to debug

empty falcon Nov 9, 2024, 6:35 PM

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I would truly recommend you to compile with -Wall -Wextra

toxic shell Nov 9, 2024, 6:35 PM

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This is the problem since instead of space and "-" I got

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(9, 7) : ç.
(9, 8) : ê.
(9, 9) : ë.
(9, 10) : è.
(9, 11) : ï.

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letters

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with accents that have nothing to do with my txt file

toxic shell Nov 9, 2024, 6:37 PM

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empty falcon I would truly recommend you to compile with `-Wall -Wextra`

How to do it I’m on Clion

empty falcon Nov 9, 2024, 6:38 PM

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empty falcon Nov 9, 2024, 6:38 PM

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toxic shell How to do it I’m on Clion

Edit your CMake file or if you don't have that edit your Makefile

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Not sure how your IDE matters here

toxic shell Nov 9, 2024, 6:39 PM

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ok but where to put this command line in CMake file

#

empty falcon Nov 9, 2024, 6:41 PM

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Check out the add_compile_options command from CMake.
Could e.g. looks like so for a simple debug build:

add_compile_options(-Wall -Wextra -Wconversion -pedantic -Wfatal-errors -g3 -fsanitize=address)

toxic shell Nov 9, 2024, 6:41 PM

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ok I delete the & know I don’t have anymore this error but my programm still stopped

#

empty falcon Nov 9, 2024, 6:43 PM

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toxic shell

I mean you're also printing the value before you even set it using the fscanf.
That is also UB.

toxic shell Nov 9, 2024, 6:45 PM

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yes but oddly it works

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does I have to add it here

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add_compile_options(-Wall -Wextra -Wconversion -pedantic -Wfatal-errors -g3 -fsanitize=address)

empty falcon Nov 9, 2024, 6:47 PM

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toxic shell does I have to add it here

If that's the highest level CMakeLists.txt file

toxic shell Nov 9, 2024, 6:47 PM

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yes it is

empty falcon Nov 9, 2024, 6:47 PM

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then yes

toxic shell Nov 9, 2024, 6:48 PM

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No change in the error

empty falcon Nov 9, 2024, 6:49 PM

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Example for how CMakeLists.txt could look like for a small project (from an old homework of mine):

- src
  * .h files
  * logger.cpp
  * monitor.cpp
  * run.cpp
  * CMakeLists.txt
- ...
- CMakeLists.txt

And the CMakeLists.txt looked roughly like so:

# this is the root cmake configuration file for your homeworks.
# it sets up the project and (at the bottom) includes your homework code.

cmake_minimum_required(VERSION 3.14)
project(cppcourse)


# try to prevent in-source builds
if("${PROJECT_SOURCE_DIR}" STREQUAL "${PROJECT_BINARY_DIR}")
    message(FATAL_ERROR "In-source builds are not allowed. Please create a separate 'build' directory and build in there.")
endif()

# set default c++ standard for compile targets
set(CMAKE_CXX_STANDARD 20)

# require C++20, don't allow falling back to older version of standard
set(CXX_STANDARD_REQUIRED ON)

# disable C++ extensions
set(CMAKE_CXX_EXTENSIONS OFF)

if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE "Debug")
endif()

#------- tweaks for an improved build experience -------

# so language servers like clangd know what the buildsystem does
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

# display many warnings during compilation
add_compile_options(-Wall -Wextra -Wconversion -pedantic -Wfatal-errors)

#------- homework code inclusion -------

add_subdirectory("src")
```and the `src/CMakeLists.txt` looked like this:
```cmake
# list all the code files of the module
set(SOURCES logger.cpp monitor.cpp)

set(LIBRARY_NAME src)
set(EXECUTABLE_NAME runsrc)


add_library(${LIBRARY_NAME} ${SOURCES})
target_include_directories(${LIBRARY_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
set_target_properties(${LIBRARY_NAME} PROPERTIES LINKER_LANGUAGE CXX)
target_compile_features(${LIBRARY_NAME} PUBLIC cxx_std_20)

add_executable(${EXECUTABLE_NAME} run.cpp)
target_link_libraries(${EXECUTABLE_NAME} ${LIBRARY_NAME} pthread)

empty falcon Nov 9, 2024, 6:49 PM

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toxic shell No change in the error

What does the file content look like?

toxic shell Nov 9, 2024, 6:50 PM

#

#

if I put the line you have given before it creates error so put it here...

empty falcon Nov 9, 2024, 6:51 PM

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That's fine, but what does the file's content look like? The file you're reading from

toxic shell Nov 9, 2024, 6:51 PM

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empty falcon Nov 9, 2024, 6:54 PM

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toxic shell

Is that intended that you also store things like newline characters you read?

toxic shell Nov 9, 2024, 6:54 PM

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yes

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this is space

#

empty falcon Nov 9, 2024, 6:56 PM

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I mean... You have 18 characters per line and set the line size to 17. Idk how to even...

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And you also only have 9 rows in your file

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Not the 17 you specified

toxic shell Nov 9, 2024, 6:57 PM

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The space between count

empty falcon Nov 9, 2024, 6:58 PM

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space between what?

toxic shell Nov 9, 2024, 6:58 PM

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each -

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like - then " " then "-"

empty falcon Nov 9, 2024, 6:59 PM

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Yeah. I included those spaces when I derived at 18 characters per line

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Count the characters yourself.
How many are there in the first line here?

- - - - - - - - -
abc

toxic shell Nov 9, 2024, 6:59 PM

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really

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got 17

empty falcon Nov 9, 2024, 7:00 PM

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Wrong

empty falcon Nov 9, 2024, 7:00 PM

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toxic shell got 17

That's not the same string (even if you replaced the B with a space)

#

This would be the same string:

#

;compile

print(len("- - - - - - - - -\n"))

plucky lodgeBOT Nov 9, 2024, 7:01 PM

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Program Output

toxic shell Nov 9, 2024, 7:01 PM

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oh ok

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the \0 count

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you mean

empty falcon Nov 9, 2024, 7:01 PM

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no

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There is no \0 in a file

toxic shell Nov 9, 2024, 7:02 PM

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right

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ok

empty falcon Nov 9, 2024, 7:02 PM

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And it also doesn't matter for you, as it's solely used to indicate the end of a string.
You don't have a string, you have a 2d array of characters

toxic shell Nov 9, 2024, 7:03 PM

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then I put minus 1 on each NbCol of the for loop

empty falcon Nov 9, 2024, 7:03 PM

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what?

toxic shell Nov 9, 2024, 7:03 PM

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IDK

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plus 1 don’t work but minus 1 works except I got This

toxic shell Nov 9, 2024, 7:05 PM

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empty falcon ;compile ```py print(len("- - - - - - - - -\n")) ```

there aren’t \n in my txt file but does it autamically made from the convertion ?

empty falcon Nov 9, 2024, 7:06 PM

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toxic shell there aren’t \n in my txt file but does it autamically made from the convertion ...

there aren’t \n in my txt file
(X) Doubt

toxic shell Nov 9, 2024, 7:07 PM

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? I don’t understand...

toxic shell Nov 9, 2024, 7:07 PM

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empty falcon > there aren’t \n in my txt file `(X) Doubt`

empty falcon Nov 9, 2024, 7:07 PM

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toxic shell

There are line breaks. So obviously there are newline characters.

We can even see them in this image of yours: #1304874352440901633 message and I even mentioned that before already: #1304874352440901633 message

toxic shell Nov 9, 2024, 7:08 PM

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ah okay I understand

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Ok so is it the problem since it is taking into the map when it shouldn’t

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I guess

empty falcon Nov 9, 2024, 7:10 PM

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toxic shell ah okay I understand

If you copy this message you will see it's 2000 characters long

#

Not all characters have a textual representation.
The newline character is one of these, but since it creates a line-break it's still rather visible/apparent if one is there.

empty falcon Nov 9, 2024, 7:13 PM

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toxic shell Ok so is it the problem since it is taking into the map when it shouldn’t

I mean I don't know if that's the actual problem, but it's definetly something you should fix first.
I can't really test run anything myself because all you're sending are screenshots

toxic shell Nov 9, 2024, 7:14 PM

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int loadGame(int *nbPlayers, struct Player P[], int *NbCol, char map[*NbCol][*NbCol]) {
    FILE *file = fopen("..//last_party.txt", "r");
    if (file == NULL) {
        printf("No saved game found.\n");
        return 0;
    }

    if (fscanf(file, "%d %d", nbPlayers, NbCol) != 2) {
        printf("Error reading number of players and number of columns.\n");

        fclose(file);
        return 0;
    }
    printf("nb col %d\n\n",*nbPlayers);
    for (int i = 0; i < *nbPlayers; i++) {
        P[i].name = malloc(30 * sizeof(char));
        if (fscanf(file, "%s %d %d %c %d %d %d", P[i].name, &P[i].nbBarriere, &P[i].color, &P[i].pawn, &P[i].posX, &P[i].posY, &P[i].score) != 7) {
            printf("Error reading player data.\n");
            fclose(file);
            return 0;
        }
    }

    for (int i = 0; i < *NbCol ; i++) {
        for (int j = 0; j < *NbCol ; j++) {
            if (fscanf(file, "%c", &map[i][j]) != 1) {
                printf("Error reading map data at position (%d, %d) : %c.\n", i, j,map[i][j]);
                fclose(file);
                return 0;
            }
            printf("(%d, %d) : %c.\n", i, j,map[i][j]);
        }
        fscanf(file, "\n");
    }

    fclose(file);
    return 1;
}

#

so change the condition to "&& i != 18"

empty falcon Nov 9, 2024, 7:16 PM

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toxic shell ```c int loadGame(int *nbPlayers, struct Player P[], int *NbCol, char map[*NbCol...

Btw, that line

printf("Error reading map data at position (%d, %d) : %c.\n", i, j,map[i][j]);
```is UB because you just failed to store something into `map[i][j]`, so what do you get if you now try to read from that position?

toxic shell Nov 9, 2024, 7:16 PM

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UB ?

empty falcon Nov 9, 2024, 7:16 PM

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toxic shell so change the condition to "&& i != 18"

what?

empty falcon Nov 9, 2024, 7:17 PM

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toxic shell UB ?

Undefined behaviour - anything can happen

toxic shell Nov 9, 2024, 7:17 PM

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got this

toxic shell Nov 9, 2024, 7:18 PM

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empty falcon what?

I have to make the for loop an 18 iteration and 17 and When it’s the last elements to not put in the map

empty falcon Nov 9, 2024, 7:21 PM

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Why not just do it like so?

#define NbCol 17

int loadGame(int nbPlayers, struct Player *P, char map[NbCol][NbCol]) {
    ...

    for (int row = 0; row < NbCol; row++) {
        for (int col = 0; col < NbCol; col++) {
            ...
        }
    }
}

#

I never really understood why your nbPlayers and NbCol (very inconsistent naming btw) are pointers

#

and why NbCol even is a variable

toxic shell Nov 9, 2024, 7:23 PM

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NbCol can have 2 values so I didn’t put a #define

empty falcon Nov 9, 2024, 7:23 PM

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wdym?

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also that doesn't explain why they're pointers in your code

toxic shell Nov 9, 2024, 7:23 PM

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The value is taken from the txt file can be 17 or 23

#

depend on the board like the number of player that can be 2 or 4

#

same error

    for (int row = 0; row < *NbCol; row++) {
        for (int col = 0; col < *NbCol; col++) {
            if (fscanf(file, "%c", &map[row][col]) != 1) {
                printf("Error reading map data at position (%d, %d) : %c.\n", row, col,map[row][col]);
                fclose(file);
                return 0;
            }
            printf("(%d, %d) : %c.\n", row, col,map[row][col]);
        }
        fscanf(file, "\n");
    }

#

empty falcon Nov 9, 2024, 7:31 PM

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toxic shell The value is taken from the txt file can be 17 or 23

Okay.
Then I would've chosen a data layout like this:

typedef enum field Field;
enum field {
    EMPTY, B, WHATEVER_ELSE_STATES_YOU_NEED
};

int translate_index(int row, int col, int board_size) {
    return row * board_size + col;
}

...
int board_size = /* extract board size from the text file */
Field *board = malloc(board_size * board_size * sizeof *board);
board[translate_index(2, 3, board_size)] = EMPTY;  // access and set 2nd row, 3rd column of the board

It's almost always easier to work with 1d arrays than it is working with multi-dimensional ones.
Not to mention that we're finally not using a VLA anymore.

toxic shell Nov 9, 2024, 7:32 PM

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yeah sure but I don’t really understand since I’ve never seen enum

empty falcon Nov 9, 2024, 7:34 PM

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toxic shell yeah sure but I don’t really understand since I’ve never seen enum

An enum is just a bunch of aliases for integers.
E.g. in my case EMPTY is the same as 0, B is the same as 1 and WHATEVER_ELSE_STATES_YOU_NEED is the same as 2.
But as you can see the aliases EMPTY or B are much more descriptive to your task than 0 or 1

toxic shell Nov 9, 2024, 7:35 PM

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okay I understand

#

So

typedef enum field Field;
enum field {
    EMPTY, B, WHATEVER_ELSE_STATES_YOU_NEED
};

int translate_index(int row, int col, int board_size) {
    return row * board_size + col;
}

int loadGame(int *nbPlayers, struct Player P[], int *NbCol, char map[*NbCol][*NbCol]) {
    ...
    int board_size = NbCol;
    Field *board = malloc(board_size * board_size * sizeof *board);
    board[translate_index(2, 3, board_size)] = EMPTY;  // access and set 2nd row, 3rd column of the board
    
    for (int row = 0; row < *NbCol ; row++) {
        for (int col = 0; col < *NbCol +1; col++) {
            if(col != 18 || row!=0 && col!=0) {
                if (fscanf(file, "%c", &map[row][col]) != 1) {
                    printf("Error reading map data at position (%d, %d) : %c.\n", row, col,map[row][col]);
                    fclose(file);
                    return 0;
                }
            }

            printf("(%d, %d) : %c.\n", row, col,map[row][col]);
        }
        fscanf(file, "\n");
    }

    fclose(file);
    return 1;
}

toxic shell Nov 9, 2024, 7:39 PM

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empty falcon An enum is just a bunch of aliases for integers. E.g. in my case `EMPTY` is the ...

But don’t that ask to change the whole structure of the game since I use no more map but an enum ?

empty falcon Nov 9, 2024, 7:41 PM

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toxic shell So ```c typedef enum field Field; enum field { EMPTY, B, WHATEVER_ELSE_STATE...

OMG! I just realized that in your original code you declare the array before you even know the size.

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How is that supposed to work?

toxic shell Nov 9, 2024, 7:43 PM

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IDK I put with the max size

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don’t really know how to do since it is in another file where I edit this in unsaved game

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Since it doesn’t implicate the for loop...

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I change it

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creates a new error 😦

empty falcon Nov 9, 2024, 8:31 PM

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Okay, so I will now do something that I typically try to avoid, which is to basically rewrite your entire project for you.
But you're so knees deep into an approach that is just flawed in so many ways.
This is only a re-write to the point where you were already, but it'll be much nicer to work with for the entire rest of the program.
Make sure to understand what is happening here.
I will use a char instead of the Field enum, just because I don't really know where you'll want to go with this and maybe a char would actually be easier.
I will also shorten a few things cause I don't want to reconstruct your entire Player struct.

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typedef struct player Player;
struct player {
    char *name;
    ...
};

typedef struct game Game;
struct game {
    char *board;
    unsigned board_size;
    Player *players;
    unsigned player_count;
};

unsigned translate_index(unsigned row, unsigned col, Game *game) {
    return row * game->board_size + col;
}

Game *load_game(const char *filepath) {
    FILE *file = fopen(filepath, "r");
    if (!file) {
        printf("No saved game found.\n");
        return NULL;
    }

    Game *game = malloc(sizeof *game);

    if (fscanf(file, "%d %d", &game->player_count, &game->board_size) != 2) {
        printf("Error reading number of players and number of columns.\n");

        fclose(file);
        return NULL;
    }

    Player *players = malloc(game->player_count * sizeof *players);
    game->players = players;
    for (int i = 0; i < game->player_count; i++) {
        players[i].name = malloc(30);
        if (fscanf(file, "%s ...", players[i].name, ...) != 7) {
            printf("Error reading player data.\n");
            fclose(file);
            return NULL;
        }
    }
    
    char *board = malloc(game->board_size * game->board_size);
    Game->board = board;
    for (int i = 0; i < game->board_size; i++) {
        for (int j = 0; j < game->board_size; j++) {
            char thing = fgetc(file);
            if (thing == EOF) {
                printf("Error reading map data at position (%d, %d).\n", i, j);
                fclose(file);
                return NULL;
            }
            board[translate_index(i, j, game)] = thing;
            printf("(%d, %d) : %c.\n", i, j, board[i][j]);
        }
        
        char buf[1000];
        fgets(buf, sizeof buf, file);  // read until we've read the newline character
    }

    fclose(file);
    return game;
}
    

int main() {
    Game *game = load_game("..//last_party.txt");
    if (!game) {
        return 1;
    }
}

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Please note that code is untested as I just drew it up here in Discord

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@toxic shell

toxic shell Nov 9, 2024, 10:05 PM

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thanks man. You didn’t need to go to such lenght

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I really appreciate

plucky lilyBOT Nov 9, 2024, 10:10 PM

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@toxic shell Has your question been resolved? If so, type !solved :)

toxic shell Nov 9, 2024, 10:11 PM

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sorry but it has some problems

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like the type Players in "Player *players;" from the struct game Game isn’t recognize

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ok I corrected it

toxic shell Nov 9, 2024, 11:11 PM

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!solved

#Take a 2 dimensional string in a txt file