feat(build): use CMake to fetch and link enet library

CMakeLists.txt

@@ -4,6 +4,13 @@ project(FarmFighter)
 set(CMAKE_C_STANDARD 11)
 set(CMAKE_CXX_STANDARD 23)
 
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+if(POLICY CMP0077)
+    cmake_policy(SET CMP0077 NEW)
+endif()
+set(FETCHCONTENT_QUIET OFF)
+
 include(FetchContent)
 FetchContent_Declare(
     raylib
@@ -15,6 +22,15 @@ FetchContent_MakeAvailable(raylib)
 set(BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
 set(BUILD_GAMES OFF CACHE BOOL "" FORCE)
 
+FetchContent_Declare(
+    enet
+    URL https://github.com/zpl-c/enet/archive/refs/tags/v2.3.10.zip
+)
+FetchContent_MakeAvailable(enet)
+
+add_library(enet INTERFACE)
+target_include_directories(enet INTERFACE ${enet_SOURCE_DIR}/include)
+
 add_subdirectory(networking)
 add_subdirectory(engine)
 add_subdirectory(client)

client/CMakeLists.txt

@@ -22,7 +22,6 @@ add_library(ImGui STATIC
 )
 target_include_directories(ImGui PUBLIC ${imgui_SOURCE_DIR})
 
-# rlImGui
 FetchContent_Declare(
         rlImGui
         GIT_REPOSITORY https://github.com/raylib-extras/rlImGui.git
@@ -47,7 +46,8 @@ target_include_directories(client PUBLIC
     ${CMAKE_CURRENT_SOURCE_DIR}/../networking/include
     ${CMAKE_CURRENT_SOURCE_DIR}/../engine/include
 )
-target_link_libraries(client raylib networking engine rlImGui ImGui)
+
+target_link_libraries(client raylib networking engine rlImGui ImGui enet)
 
 if (WIN32)
     target_link_libraries(client ws2_32)

networking/CMakeLists.txt

@@ -9,4 +9,6 @@ target_include_directories(networking PUBLIC
     ${raylib_SOURCE_DIR}/src
 )
 
-target_include_directories(networking PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
+target_include_directories(networking PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+target_link_libraries(networking enet)

server/CMakeLists.txt

@@ -10,8 +10,8 @@ target_include_directories(server PUBLIC
     ${CMAKE_CURRENT_SOURCE_DIR}/../engine/include
 )
 
-target_link_libraries(server networking engine raylib)
+target_link_libraries(server networking engine raylib enet)
 
 if (WIN32)
     target_link_libraries(server ws2_32)
-endif()
+endif()