.gitattributes

+*,ogg filter=lfs diff=lfs merge=lfs -text
+*.mtl filter=lfs diff=lfs merge=lfs -text
+*.jpg filter=lfs diff=lfs merge=lfs -text
+*.obj filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text

.gitignore

-build/
-cmake-build-debug/
-cmake-build-debug-coverage/
+# build files
+builds/
+cmake-build-*
 imgui.ini
+.flatpak-builder/
+compile_commands.json
 
-# dotfiles
+# Engine data
+demo/data/*.bin
+
+# dotfiles (IDE)
 .idea/
 .cache/
+.venv/
+
+# windows visual studio
+.vs/
+out/
+CMakePresets.json
+CMakeSettings.json

.gitlab-ci.yml

@@ -15,72 +15,83 @@
 
 image: ${CI_DEPENDENCY_PROXY_GROUP_IMAGE_PREFIX}/alpine:latest
 
-stages:          # List of stages for jobs, and their order of execution
+stages:
   - build
   - test
   - deploy
 
-#build-job:       # This job runs in the build stage, which runs first.
-#  stage: build
-#  before_script:
-#    - apk update && apk --update add build-base g++ libstdc++ cmake extra-cmake-modules bash mesa-gl mesa-egl mesa-gles wayland-dev wayland-protocols libxkbcommon-dev
-#  script:
-#    - mkdir build && cd build
-#    - cmake ..
-#    - make
+variables:
+  GIT_SUBMODULE_STRATEGY: recursive
 
 .f34-ogl:
-  image: git.fossgalaxy.com:8042/gamedev/containers/fedora:34-opengl
+  image: git.fossgalaxy.com:8042/gamedev/containers/fedora:36-opengl
+  before_script:
+    - dnf install -y pkgconfig\(dri\) pkgconfig\(glu\) pkgconfig\(x11\) pkgconfig\(xcursor\) pkgconfig\(xi\) pkgconfig\(xinerama\) pkgconfig\(xrandr\) pkgconfig\(lua\) doxygen
+    - dnf install -y glm-devel glfw-devel openal-soft-devel spdlog-devel freetype-devel yaml-cpp-devel assimp-devel gtest-devel gmock-devel
 
-# Use glfw-wayland from fedora repostory
-build:f34-repo-wayland:
+##
+# Build Targets check it builds on popular Linux Distributions
+##
+build:fedora:
   extends: .f34-ogl
   stage: build
   script:
-    - dnf install -y glfw-devel
-    - mkdir build && cd build
-    - cmake ..
-    - make
+    - cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug -DFGGL_EXT_BULLET=OFF
+    - cmake --build build
   artifacts:
     paths:
       - build/fggl/
-      - build/tests/
 
-# use vendored glfw
-build:f34-fallback-wayland:
-  extends: .f34-ogl
+build:ubuntu:
+  image: ubuntu:jammy
   stage: build
+  before_script:
+    - apt update && apt install -y build-essential cmake
+    - apt install -y libglm-dev libglfw3-dev libopenal-dev libspdlog-dev libfreetype-dev libyaml-cpp-dev libassimp-dev libbullet-extras-dev libgtest-dev libgmock-dev liblua5.2-dev
   script:
-    - dnf install -y wayland-devel wayland-protocols-devel libxkbcommon-devel
-    - mkdir build && cd build
-    - cmake ..
-    - make
+    - cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug -DFGGL_EXT_BULLET=OFF -DFGGL_EXT_LUA=OFF
+    - cmake --build build
+
+
+# Based on Bruce Cowan's wordsearch package:
+flatpak:
+  image: alpine:latest
+  stage: deploy
+  when: manual
+  only:
+    - develop
+  variables:
+    MANIFEST_PATH: "build-aux/com.fossgalaxy.fggl.demo.yml"
+    RUNTIME_REPO: "https://flathub.org/repo/flathub.flatpakrepo"
+    FLATPAK_MODULE: "fggl"
+    BUNDLE: "fggl-demo.flatpak"
+    APP_ID: "com.fossgalaxy.fggl.demo"
+  script:
+    - apk update && apk add flatpak-builder
+    - flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
+    - flatpak install -y flathub org.freedesktop.Platform 21.08
+    - flatpak install -y flathub org.freedesktop.Sdk 21.08
+    - flatpak-builder _repo ${MANIFEST_PATH}
+    - flatpak build-bundle _repo ${BUNDLE} --runtime-repo=${RUNTIME_REPO} ${APP_ID}
   artifacts:
     paths:
-      - build/fggl/
-      - build/tests/
+      - ${BUNDLE}
+      - _build/meson-logs/meson-log.txt
+  cache:
+    paths:
+      - .flatpak-builder/cache
+      - .flatpak-builder/downloads
 
-test:f34-fallback-wayland:
+# Deploy doxygen pages
+pages:
   extends: .f34-ogl
-  stage: test
-  needs: [ "build:f34-fallback-wayland" ]
+  stage: deploy
+  only:
+    - develop
   script:
-    - cd build && ./tests/testfggl/fggl_test
-  dependencies:
-    - build:f34-fallback-wayland
-
-#unit-test-job:   # This job runs in the test stage.
-#  stage: test    # It only starts when the job in the build stage completes successfully.
-#  before_script:
-#    - apk update && apk --update add build-base g++ libstdc++ cmake extra-cmake-modules bash mesa-gl wayland-dev wayland-protocols
-#  script:
-#    - mkdir build && cd build
-#    - cmake .. && make # TODO cache build from previous step
-#    - ./tests/testfggl/fggl_test
-
-#lint-test-job:   # This job also runs in the test stage.
-#  stage: test    # It can run at the same time as unit-test-job (in parallel).
-#  script:
-#    - echo "Linting code... This will take about 10 seconds."
-#    - sleep 10
-#    - echo "No lint issues found."
+    - cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug
+    - cmake --build build --target docs
+    - cp -r build/docs/html public
+  artifacts:
+     paths:
+       - public

.gitmodules

+[submodule "build-aux/shared-modules"]
+	path = build-aux/shared-modules
+	url = https://github.com/flathub/shared-modules.git

CMakeLists.txt

-cmake_minimum_required(VERSION 3.13)
+cmake_minimum_required(VERSION 3.16)
+set(namespace "fggl")
 
-project(FGGL VERSION 0.1 LANGUAGES CXX)
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED YES)
 
-set(FGGL_WAYLAND True)
+option(FGGL_EXAMPLES "Should we build examples or just the library" ON)
+option(FGGL_TESTS "Should we enable the testing suite?" ON)
+option(FGGL_DOCS "Should we build documentation?" ON)
 
-# Set C++ version
-set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_CXX_STANDARD_REQUIRED True)
+option(FGGL_EXT_BULLET "Should we build the bullet module?" OFF)
+option(FGGL_EXT_LUA "Should we build the lua module?" ON)
+
+##
+# Windows
+# When on windows, integrate vcpkg
+##
+if(DEFINED ENV{VCPKG_ROOT} AND NOT DEFINED CMAKE_TOOLCHAIN_FILE)
+  set(CMAKE_TOOLCHAIN_FILE "$ENV{VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake"
+      CACHE STRING "")
+endif()
+##
+# /windows
+##
+
+# Define the project
+project(fggl
+	VERSION 0.1
+	DESCRIPTION "FOSS Galaxy Game Library, for use in Education, and Games"
+	HOMEPAGE_URL "https://git.fossgalaxy.com/gamedev/fggl"
+	LANGUAGES C CXX)
+
+# export compile commands for vim/neovim users
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-# Doxygen Support
-# Based on https://vicrucann.github.io/tutorials/quick-cmake-doxygen/
-option(BUILD_DOC "Build Documentation" ON)
-find_package( Doxygen )
-if (DOXYGEN_FOUND)
-	# Set docs folder
-	set(DOXYGEN_IN ${CMAKE_CURRENT_SOURCE_DIR}/docs/Doxyfile.in)
-	set(DOXYGEN_OUT ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile)
-
-	# configure file
-	configure_file(${DOXYGEN_IN} ${DOXYGEN_OUT} @ONLY)
-	message("Doxygen build started")
-
-	# note the option ALL which allows to build the docs together with the application
-	add_custom_target( doc_doxygen ALL
-		COMMAND ${DOXYGEN_EXECUTABLE} ${DOXYGEN_OUT}
-		WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
-		COMMENT "Generating API documentation with Doxygen"
-		VERBATIM )
-endif (DOXYGEN_FOUND)
-
-# depedencies
-find_package( glfw3 )
-if ( NOT glfw3_FOUND )
-  include(FetchContent)
-  set(GLFW_BUILD_DOCS OFF CACHE BOOL "" FORCE)
-  set(GLFW_BUILD_TESTS OFF CACHE BOOL "" FORCE)
-  set(GLFW_BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
-  if ( FGGL_WAYLAND )
-    set(GLFW_USE_WAYLAND True)
-  endif ()
-  FetchContent_Declare(
-    glfw3
-    URL https://github.com/glfw/glfw/releases/download/3.3.4/glfw-3.3.4.zip
-  )
-  FetchContent_MakeAvailable( glfw3 )
-endif ()
-add_subdirectory(vendor/imgui/)
-
-# engine
-add_subdirectory(fggl)
-
-# extras
-add_subdirectory(tests)
-add_subdirectory(demo)
+# vendor dependencies
+add_subdirectory( vendor/entt )
+add_subdirectory( vendor/imgui )
+add_subdirectory( vendor/glad )
+
+# engine headers
+file(GLOB_RECURSE public_headers
+	${PROJECT_SOURCE_DIR}/include/fggl/*.hpp
+)
+
+# engine sources, enable strict compiler warnings
+add_subdirectory( fggl )
+target_compile_options( fggl PRIVATE -Wall -Wpedantic -Wextra -Wodr -fno-strict-aliasing -fno-strict-overflow )
+set_property(TARGET fggl PROPERTY INTERPROCEDURAL_OPTIMIZATION True)
+
+# Unit Tests
+if (FGGL_TESTS)
+	include(CTest)
+	add_subdirectory(tests)
+endif()
+
+# Documentation support
+if (FGGL_DOCS)
+	find_package(Doxygen)
+	if (Doxygen_FOUND)
+		add_subdirectory( docs )
+	else()
+		message(STATUS "Doxygen not found, not building docs")
+	endif()
+endif()
+
+##
+# Optional/Extra modules
+##
+
+# 3rd party integrations
+if ( FGGL_EXT_BULLET )
+	add_subdirectory( integrations/bullet )
+endif()
+
+if ( FGGL_EXT_LUA )
+	add_subdirectory( integrations/lua )
+endif()
+
+# Tools
+# add_subdirectory( tools/pack )
+
+# Demo project
+if (FGGL_EXAMPLES)
+	add_subdirectory(demo EXCLUDE_FROM_ALL)
+endif()
+
+##
+# INSTALL PHASE
+# see https://decovar.dev/blog/2021/03/08/cmake-cpp-library/
+##
+include(GNUInstallDirs)
+
+# Structure preserving header macro
+foreach(header ${public_headers})
+    file(RELATIVE_PATH header_file_path "${CMAKE_CURRENT_SOURCE_DIR}/include" "${header}")
+    get_filename_component(header_directory_path "${header_file_path}" DIRECTORY)
+    install(
+        FILES ${header}
+        DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/${header_directory_path}"
+    )
+endforeach()
+
+set_target_properties(${PROJECT_NAME} PROPERTIES DEBUG_POSTFIX "d")
+
+include(CMakePackageConfigHelpers)
+set(FGGL_CONFIG_PATH "${CMAKE_INSTALL_LIBDIR}/cmake/fggl")
+
+# generate and install export file
+install(EXPORT "${PROJECT_NAME}Targets"
+	    FILE "${PROJECT_NAME}Targets.cmake"
+	    NAMESPACE ${namespace}::
+	    DESTINATION "${FGGL_CONFIG_PATH}"
+)
+
+# generate the version file for the config file
+write_basic_package_version_file(
+    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+    VERSION "${version}"
+    COMPATIBILITY AnyNewerVersion
+)
+configure_package_config_file(${CMAKE_CURRENT_SOURCE_DIR}/Config.cmake.in
+    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+    INSTALL_DESTINATION "${FGGL_CONFIG_PATH}"
+)
+# install config files
+install(FILES
+    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
+    DESTINATION "${FGGL_CONFIG_PATH}"
+)
+# generate the export targets for the build tree
+install(TARGETS ${PROJECT_NAME}
+		EXPORT fgglTargets
+			DESTINATION "${CMAKE_INSTALL_LIBDIR}"
+		PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME}
+		INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+)
+
+export(EXPORT "${PROJECT_NAME}Targets"
+    FILE "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}Targets.cmake"
+    NAMESPACE ${namespace}::
+)
+

Config.cmake.in

+@PACKAGE_INIT@
+
+include(CMakeFindDependencyMacro)
+find_dependency(glm)
+find_dependency(fmt)
+find_dependency(Lua)
+find_dependency(spdlog)
+find_dependency(Freetype)
+find_dependency(OpenAL CONFIG)
+find_dependency(OpenGL)
+
+include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
+check_required_components(@PROJECT_NAME@)
\ No newline at end of file

README.md

@@ -4,14 +4,25 @@ A library for building FOSS Games, Educational Resources and Academic Experiment
 
 ## Development Instructions
 
+### Installing dependenecies
+FGGL depends on a few dependencies to work correctly.
+
+On Ubuntu:
+```bash
+sudo apt install build-essential cmake
+sudo apt install -y libglm-dev libglfw3-dev libopenal-dev libspdlog-dev libfreetype-dev libyaml-cpp-dev libassimp-dev libbullet-dev
+```
+On Fedora:
+```bash
+sudo dnf install -y glm-devel glfw-devel openal-soft-devel spdlog-devel freetype-devel yaml-cpp-devel assimp-devel bullet-devel gcc gcc-c++ cmake gtest-devel doxygen lua lua-devel gmock gmock-devel
+```
+
 ### Building
 It's designed to be a fairly standard cmake project, so the standard cmake steps should work:
 
 ```bash
-mkdir build
-cd build
-cmake ..
-make
+cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug
+cmake --build build
 ```
 
 The library should also build the test scene (`demo`). There is a shellscript in the root of the
@@ -20,7 +31,34 @@ project that will build the project and run the demo project in gdb.
 Most of the dependencies should be downloaded automatically. If you're on X don't use glfw from the
 Fedora repos, it won't work (it's configured for Wayland). The version the project builds should work.
 
-### Useful Tools
+### Deploying
+The library is designed to be used as a shared library, as it is licenced in the LGPL. You can generate the shared library, header files and assoicated cmake files using the following command:
+
+```bash
+cmake --install build --prefix /tmp/fggl-lib
+```
+
+This will place the files in /tmp/fggl-lib, you can adjust this to suit your needs.
+
+You can then include the library in your application using cmake, eg:
+
+```bash
+find_package(spdlog REQUIRED)
+target_link_libraries(game spdlog::spdlog)
+
+find_package( fggl REQUIRED PATHS /tmp/fggl-lib )
+target_link_libraries(game fggl::fggl)
+```
+
+### Flatpak Demo
+
+This is still experimental, but the command used to test flatpak compatablity with the demo application is:
+
+```
+flatpak-builder builds/flatpak build-aux/com.fossgalaxy.fggl.demo.yml --force-clean --install --user
+```
+
+## Useful Tools
 The following tools are helpful for development:
 
 * Valgrind (see the ways in which memory is messed up)

build-aux/com.fossgalaxy.fggl.demo.yml

+app-id: com.fossgalaxy.fggl.Demo
+runtime: org.freedesktop.Platform
+runtime-version: '21.08'
+sdk: org.freedesktop.Sdk
+command: /app/bin/demo
+finish-args:
+  - "--device=dri"
+  - "--share=ipc"
+  - "--socket=fallback-x11"
+  - "--socket=wayland"
+modules:
+  - modules/glfw.yml
+  - modules/glm-0.9.9.8.json
+  - modules/fmt.yml
+  - modules/spdlog.json
+  - modules/googletest.yml
+  - shared-modules/glu/glu-9.json
+  - modules/yaml-cpp.yml
+  - modules/assimp.yml
+  - name: fggl
+    buildsystem: cmake
+    builddir: true
+    sources:
+      - type: dir
+        path: ../
+    cleanup:
+      - '/include'
+      - '/cmake'
+      - '*.a'

build-aux/fggl.spec

+Name: fggl
+Version: 0.1.0
+Release: 1%{?dist}
+Summary: FOSS Galaxy game library
+
+License: LGPLv3
+
+# The source was pulled from github
+source0: https://git.fossgalaxy.com/gamedev/fggl/-/archive/develop/fggl-develop.zip
+
+BuildRequires: g++
+BuildRequires: cmake
+BuildRequires: glfw-devel
+BuildRequires: openal-devel
+BuildRequires: glm-devel
+BuildRequires: glfw-devel
+BuildRequires: openal-soft-devel
+BuildRequires: spdlog-devel
+BuildRequires: freetype-devel
+BuildRequires: yaml-cpp-devel
+BuildRequires: assimp-devel
+BuildRequires: bullet-devel
+BuildRequires: gtest-devel
+BuildRequires: gmock-devel
+
+# demo desktop stuff
+BuildRequires: libappstream-glib
+BuildRequires: desktop-file-utils
+
+%description
+%{summary}.
+
+%prep
+%setup -q -n %{name}-develop
+
+%build
+%cmake
+%cmake_build
+
+%install
+%cmake_install
+
+%check
+%ctest
+appstream-util validate-relax --nonet %{buildroot}%{_metainfodir}/*.metainfo.xml
+desktop-file-validate %{buildroot}/%{_datadir}/applications/com.fossgalaxy.fggl.Demo.desktop
+
+%package demos
+Summary: Demos for fggl
+Group: System Environment/Libraries
+Requires: %{name} = %{version}-%{release}
+
+%description demos
+FGGL example binaries
+
+%package devel
+Summary: FGGL development libraries and header files
+Group: Development/Libraries
+Requires: %{name} = %{version}-%{release}
+
+%description devel
+fggl dynamic libraries and header files.
+
+%files
+%{_libdir}/libfggl.so
+
+%files devel
+%{_includedir}/fggl/*
+%{_libdir}/cmake/%{name}
+# this feels like a packaging bug...
+%{_libdir}/libimgui.a
+
+%files demos
+%{_bindir}/demo
+%{_datadir}/fggl-demo/*
+%{_datadir}/applications/com.fossgalaxy.fggl.Demo.desktop
+%{_metainfodir}/com.fossgalaxy.fggl.Demo.metainfo.xml

build-aux/modules/assimp.yml

+name: assimp
+buildsystem: cmake
+config-opts:
+  - -DASSIMP_BUILD_ASSIMP_TOOLS=OFF
+  - -DASSIMP_BUILD_TESTS=OFF
+sources:
+  - type: git
+    url: https://github.com/assimp/assimp.git
+    tag: v5.2.4
+cleanup:
+  - '/include'
+  - '/lib/cmake'
+  - '/lib/pkgconfig'

build-aux/modules/fmt.yml

+name: fmt
+buildsystem: cmake
+sources:
+  - type: git
+    url: https://github.com/fmtlib/fmt.git
+    tag: 8.1.1
+cleanup:
+  - '/include'
+  - '/lib/cmake'
+  - '/lib/pkgconfig'
+  - '*.a'

build-aux/modules/glfw.yml

+name: glfw
+buildsystem: cmake-ninja
+builddir: true
+sources:
+  - type: archive
+    url: https://github.com/glfw/glfw/releases/download/3.3.4/glfw-3.3.4.zip
+    sha256: bbd2c42c660b725e9755eb417e40b373f0d4c03138c9b2e210d02cd308bd99cd
+cleanup:
+  - /include
+  - /lib/cmake
+  - /lib/pkgconfig
+  - '*.a'

build-aux/modules/glm-0.9.9.8.json

+{
+    "name": "glm",
+    "buildsystem": "simple",
+    "build-commands": [
+        "mkdir -p /app/include/",
+        "cp -vr glm /app/include/",
+        "rm -v /app/include/glm/CMakeLists.txt",
+        "mkdir -p /app/lib/",
+        "cp -vr cmake /app/lib/"
+    ],
+    "sources": [
+        {
+            "type": "git",
+            "url": "https://github.com/g-truc/glm.git",
+            "tag": "0.9.9.8"
+        }
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/cmake"
+    ]
+}

build-aux/modules/googletest.yml

+name: googletest
+buildsystem: cmake
+sources:
+  - type: archive
+    url: https://github.com/google/googletest/archive/refs/tags/release-1.11.0.zip
+    sha256: 353571c2440176ded91c2de6d6cd88ddd41401d14692ec1f99e35d013feda55a
+cleanup:
+  - '/include'
+  - '/lib/cmake'
+  - '/lib/pkgconfig'
+  - '*.a'

build-aux/modules/spdlog.json

+{
+    "name": "spdlog",
+    "buildsystem": "cmake",
+    "sources": [
+        {
+            "type": "git",
+            "url": "https://github.com/gabime/spdlog.git",
+            "tag": "v1.10.0"
+        }
+    ],
+    "cleanup": [
+        "/include",
+        "/lib/cmake",
+        "/lib/pkgconfig",
+        "*.a"
+    ]
+}

build-aux/modules/yaml-cpp.yml

+name: yaml-cpp
+buildsystem: cmake
+config-opts:
+  - -DYAML_CPP_BUILD_TESTS=off
+sources:
+  - type: git
+    url: https://github.com/jbeder/yaml-cpp.git
+    tag: yaml-cpp-0.7.0
+cleanup:
+  - '/include'
+  - '/share/cmake'
+  - '/share/pkgconfig'
+  - '*.a'

shared-modules @ 1bb53934

+Subproject commit 1bb53934f105743f84f923693847185dce613cef

build.sh

@@ -2,13 +2,11 @@
 
 CACHE=/tmp/fggl/
 LOG=$CACHE/demo.log
-EXE="../build/demo/FgglDemo"
 
-if [[ ! -d "build/" ]]
-then
-	mkdir build
-fi
+BUILD_PATH="builds/cli"
+DEMO_EXE="$PWD/$BUILD_PATH/demo/demo"
 
+# check cmake exists
 if [ ! -x "$(command -v cmake)" ]; then
 	sudo dnf install -y cmake extra-cmake-modules
 	sudo dnf install -y wayland-devel libxkbcommon-devel wayland-protocols-devel
@@ -16,30 +14,32 @@ if [ ! -x "$(command -v cmake)" ]; then
 fi
 
 # if doing shader development, disable the cache to make sure changes take affect
+rm -rf builds/cli
 rm -rf $CACHE
 
 #
 # build step
 #
-pushd build
-cmake ..
-make
-popd
+cmake -S . -B $BUILD_PATH -DCMAKE_BUILD_TYPE=RelWithDebInfo
+cmake --build $BUILD_PATH
+cmake --install $BUILD_PATH --prefix /tmp/fggl-lib
 
 #
 # additional stuff
 #
 
+#EXE="gdb $EXE"
+
 # gamemoderun
 if [ -x "$(command -v gamemoderun)" ]; then
-	EXE="gamemoderun $EXE"
+    DEMO_EXE="gamemoderun $DEMO_EXE"
 fi
 
 # mangohud
 if [ -x "$(command -v mangohud)" ]; then
-	EXE="mangohud --dlsym $EXE"
+    DEMO_EXE="mangohud --dlsym $DEMO_EXE"
 fi
 
 pushd demo
-$EXE ../build/demo/FgglDemo
+$DEMO_EXE
 popd

demo/CMakeLists.txt

+cmake_minimum_required(VERSION 3.16)
+project(demo)
+
 # Executable
-add_executable(FgglDemo main.cpp)
-target_link_libraries(FgglDemo fggl)
-target_include_directories(FgglDemo PUBLIC ${PROJECT_BINARY_DIR})
+add_executable(demo
+        demo/main.cpp
+        demo/GameScene.cpp
+        demo/rollball.cpp
+        demo/topdown.cpp
+        demo/grid.cpp
+        demo/robot/programmer.cpp
+        demo/models/viewer.cpp
+        demo/hexboard/board.cpp
+        demo/hexboard/camera.cpp
+)
+
+# set build flags
+target_compile_options( demo PRIVATE -Wall -Wextra -Wodr -Wdouble-promotion -fno-strict-aliasing -fno-strict-overflow )
+set_property(TARGET demo PROPERTY INTERPROCEDURAL_OPTIMIZATION True)
+
+target_include_directories(demo
+        PRIVATE
+            ${CMAKE_CURRENT_SOURCE_DIR}/include
+)
+
+target_link_libraries( demo fggl )
+#target_link_libraries(demo fggl fgglbt)
+if ( FGGL_EXT_LUA )
+    target_link_libraries( demo fggl-lua )
+endif()
 
-# rssources
+find_package(spdlog)
+target_link_libraries(demo spdlog::spdlog)
+#target_include_directories(FgglDemo PUBLIC ${PROJECT_BINARY_DIR})
+
+#find_package(Lua)
+#target_link_libraries(demo ${LUA_LIBRARIES})
+
+# resources
 file(GLOB_RECURSE data data/*)
-file(COPY ${data} DESTINATION data )
\ No newline at end of file
+file(COPY ${data} DESTINATION data )
+
+include(GNUInstallDirs)
+install(
+        TARGETS demo
+        RUNTIME
+        DESTINATION ${CMAKE_INSTALL_BINDIR}
+)
+install(
+        DIRECTORY data/
+        DESTINATION ${CMAKE_INSTALL_DATADIR}/fggl-demo
+)
+
+# Linux Desktop Entries
+if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+    install(FILES aux/com.fossgalaxy.fggl.Demo.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )
+    install(FILES aux/com.fossgalaxy.fggl.Demo.metainfo.xml DESTINATION ${CMAKE_INSTALL_DATADIR}/metainfo )
+endif (${CMAKE_SYSTEM_NAME} MATCHES "Linux")

demo/aux/com.fossgalaxy.fggl.Demo.desktop

+[Desktop Entry]
+Name=FGGL Demo
+Exec=demo
+Type=Application
+Categories=Game