Created inital window and cleaned up CMakeLists

CMakeLists.txt

@@ -17,37 +17,47 @@ add_library(lunasvg::lunasvg ALIAS PkgConfig::LUNASVG)
 
 find_package(RmlUi CONFIG REQUIRED)
 
+add_library(rmlui_backend STATIC
+  vendor/rmlui_backend/RmlUi_Backend_SDL_GL3.cpp
+  vendor/rmlui_backend/RmlUi_Platform_SDL.cpp
+  vendor/rmlui_backend/RmlUi_Renderer_GL3.cpp
+)
+
+target_include_directories(rmlui_backend PUBLIC
+  vendor/rmlui_backend
+)
+
+target_compile_definitions(rmlui_backend PUBLIC
+  RMLUI_SDL_VERSION_MAJOR=3
+  RMLUI_NUM_MSAA_SAMPLES=4
+)
+
+target_link_libraries(rmlui_backend PUBLIC
+  RmlUi::RmlUi
+  SDL3::SDL3
+  SDL3_image::SDL3_image
+  Freetype::Freetype
+)
+
 add_executable(${PROJECT_NAME}
-    src/main.cpp
-    vendor/rmlui_backend/RmlUi_Platform_SDL.cpp
-    vendor/rmlui_backend/RmlUi_Renderer_GL3.cpp
+  src/main.cpp
 )
 
 target_include_directories(${PROJECT_NAME} PRIVATE
-    src
-    vendor/rmlui_backend
-    ${FREETYPE_INCLUDE_DIRS}
-)
-
-target_compile_definitions(${PROJECT_NAME} PRIVATE
-    RMLUI_SDL_VERSION_MAJOR=3
-    RMLUI_NUM_MSAA_SAMPLES=4
+  src
 )
 
 target_link_libraries(${PROJECT_NAME} PRIVATE
-    RmlUi::RmlUi
-    RmlUi::Debugger
-    RmlUi::Lua
-    ${LUA_LIBRARIES}
-    Freetype::Freetype
-    lunasvg::lunasvg
-    SDL3::SDL3
-    SDL3_image::SDL3_image
+  rmlui_backend
+  RmlUi::Debugger
+  RmlUi::Lua
+  ${LUA_LIBRARIES}
+  lunasvg::lunasvg
 )
 
 install(TARGETS ${PROJECT_NAME} DESTINATION bin)
 install(DIRECTORY assets DESTINATION bin)
 
 target_compile_definitions(${PROJECT_NAME} PRIVATE
-    ASSETS_DIR="${CMAKE_SOURCE_DIR}/bin/assets"
+  ASSETS_DIR="${CMAKE_SOURCE_DIR}/bin/assets"
 )