CMake: Restructure main file, move example to its own directory

example/CMakeLists.txt

@@ -0,0 +1,26 @@
+# ------------------------------------------
+# User config between these lines
+
+# Set project name
+set(GAME "game")
+
+# ------------------------------------------
+
+project(${GAME} CXX)
+
+# Define game source files
+file(GLOB_RECURSE GAME_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp")
+
+add_executable(${GAME} ${GAME_SOURCES})
+target_include_directories(${GAME} PRIVATE
+	"${CMAKE_SOURCE_DIR}/${ENGINE}/src")
+target_link_libraries(${GAME} ${ENGINE})
+
+target_precompile_headers(${GAME} REUSE_FROM ${ENGINE})
+
+# ------------------------------------------
+
+# Add 'make run' target
+add_custom_target(run
+    COMMAND ${GAME}
+)

example/src/game.cpp

@@ -0,0 +1,15 @@
+#include "inferno.h"
+#include "inferno/entrypoint.h"
+
+class Game : public Inferno::Application
+{
+public:
+	Game() : Application({}) {}
+	~Game() {}
+};
+
+Inferno::Application& Inferno::createApplication()
+{
+	Game::initialize();
+	return Game::the();
+}