[Add] Dependency management to build system.

CMakeLists.txt

@@ -4,6 +4,21 @@ project(bettola CXX)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+include(FetchContent)
+FetchContent_Declare(
+  sol2
+  GIT_REPOSITORY https://github.com/ThePhD/sol2.git
+  GIT_TAG v3.3.1
+)
+FetchContent_MakeAvailable(sol2)
+
+FetchContent_Declare(
+  SDL_net
+  GIT_REPOSITORY https://github.com/libsdl-org/SDL_net.git
+  GIT_TAG release-3.0.0
+)
+FetchContent_MakeAvailable(SDL_net)
+
 add_subdirectory(common)
 add_subdirectory(client)
 add_subdirectory(server)

README.org

@@ -7,39 +7,17 @@ The following dependencies are required:
  - A C++ compiler (e.g., clang, g++)
  - CMake (3.16 or newer)
  - SDL3 development libraries
- - SDL3_net development libraries
+ - SDL3_net development libraries (managed by CMake)
  - GLEW development libraries
  - FreeType development libraries
+ - Lua 5.4 development libraries
+ - sol2 (header-only, managed by CMake)
 
 ** Installation (Debian)
 You can install most required dependencies with the following command:
 #+BEGIN_SRC bash
 sudo apt update
-sudo apt install build-essential clang cmake libsdl3-dev libglew-dev libfreetype-dev
-#+END_SRC
-
-** Installing SDL3_net (from source)
-As SDL3 is new, the networking library may require compiling and installed
-manually.
-
-1 *Clone the repository:*
-#+BEGIN_SRC bash
-git clone https://github.com/libsdl-org/SDL_net.git
-cd SDL_net
-#+END_SRC
-2 *Build and install:*
-#+BEGIN_SRC bash
-mkdir build && cd build
-cmake ..
-make
-sudo make install
-# You can delete the downloaded SDL_net directory after install.
-#+END_SRC
-3 *Update linker cache:*
-If you have linker issues after install SDL3_net, try updating your linker
-cache.
-#+BEGIN_SRC bash
-sudo ldconfig
+sudo apt install build-essential clang cmake libsdl3-dev libglew-dev libfreetype-dev liblua5.4-dev
 #+END_SRC
 
 * Build Instructions

client/CMakeLists.txt

@@ -5,13 +5,11 @@ add_executable(bettolac
 )
 
 find_package(SDL3 REQUIRED)
-find_package(SDL3_net REQUIRED)
 find_package(GLEW REQUIRED)
 find_package(OpenGL REQUIRED)
 find_package(Freetype REQUIRED)
 
-target_link_libraries(bettolac PRIVATE bettola SDL3::SDL3 SDL3_net
+target_link_libraries(bettolac PRIVATE bettola SDL3::SDL3 SDL3_net::SDL3_net
   GLEW::glew OpenGL::GL Freetype::Freetype)
 
-target_include_directories(bettolac PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src
-  /usr/local/include/SDL3_net)
+target_include_directories(bettolac PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)

common/CMakeLists.txt

@@ -1,8 +1,12 @@
+find_package(Lua 5.4 REQUIRED)
+
 file(GLOB_RECURSE BETTOLA_SOURCES "src/*.cpp")
 
 add_library(bettola
   ${BETTOLA_SOURCES}
 )
 
+target_link_libraries(bettola PUBLIC ${LUA_LIBRARIES} sol2)
+
 target_include_directories(bettola PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)
 

server/CMakeLists.txt

@@ -5,10 +5,7 @@ add_executable(bettolas
 )
 
 find_package(SDL3 REQUIRED)
-find_package(SDL3_net REQUIRED)
 
-target_link_libraries(bettolas PRIVATE bettola SDL3::SDL3 SDL3_net)
+target_link_libraries(bettolas PRIVATE bettola SDL3::SDL3 SDL3_net::SDL3_net)
 
-target_include_directories(bettolas PUBLIC
-  ${CMAKE_CURRENT_SOURCE_DIR}/src
-  /usr/local/include/SDL3_net)
+target_include_directories(bettolas PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)