Rearrange graphics projects into subdirectory

cpp/graphics/sdl-cmake/CMakeLists.txt

@@ -0,0 +1,59 @@
+###############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2021 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0  ##
+##############################################################################
+#
+
+# Define CMake version
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]    SDL-Cmake
+    DESCRIPTION  "Example project for building SDL projects with CMake"
+    LANGUAGES    CXX
+)
+
+# Add Library
+add_library(
+    lib-sdl-test            # Library Name
+    "src/lib-sdl-test.cpp"  # Sources..
+    "src/lib-sdl-test.h"
+)
+
+target_include_directories(            # When calling library, include a directory
+    lib-sdl-test                       # Library name
+    PUBLIC                             # Visibility
+    "${CMAKE_CURRENT_SOURCE_DIR}/src"  # Source directory for library
+    )
+
+# Search for SDL2 package
+find_package(SDL2 REQUIRED sdl2)
+
+# If SDL2 was found successfully, link to lib-sdl-test
+if (SDL2_FOUND)
+  # Any target that links with this library will also link to SDL2
+  # + Because we choose PUBLIC visibility
+  target_include_directories(lib-sdl-test PUBLIC ${SDL2_INCLUDE_DIRS})
+  target_link_libraries(lib-sdl-test PUBLIC "${SDL2_LIBRARIES}")
+
+  # Creating executable
+  add_executable(
+      sdl-test              # Exe name
+      "apps/sdl-test.cpp"   # Exe Source(s)
+  )
+
+  # Linking the exe to library
+  target_link_libraries(
+      sdl-test              # Executable to link
+      PRIVATE               # Visibility
+      lib-sdl-test          # Library to link
+  )
+
+else()
+  message(
+      "Error: CMake was unable to find SDL2 package.\n"
+      "Please install the libsdl2-dev package and try again.\n"
+  )
+endif()