Screenshot and input update, requires C++17

* SystemEvents in KeyChecker
* ControlMenu now looks like ChasmPortable
* add remappable keys present in original portable release like center_view and weapon_next/prev
* SavesComment now contains time instead of LevelHealth
* TGAWrite modification for screenshots
* use strcasestr and strcasecmp
* switch from KeyboardState to InputState allowing other input device type states
* use char32_t instead of unsigned int for KeyCode
* allow mouse control remap
* allow rotate/wrap for msaa and pixel_size
* fix character input in window resolution video menu
* modify WriteTGA to support RGBA32 flipped input if palette equals nullptr
* add SystemEvent support to KeyChecker
* add screenshot implementation
* use timestamp for saves instead of Level and Health
* add LICENSE
* add add-on list in README.md
* add physfs and cgltf as submodule in external
* support loading new TAR format csm.bin with PhysicsFS

Author: Jon Daniel

.gitignore

@@ -1,7 +1,32 @@
+# Source temporaries
+*.cpp~
+*.hpp~
+src/.*.cpp.swp*
+src/.*.hpp.swp*
+src/*.cpp~
+src/*.hpp~
+src/common/*.cpp.swp*
+src/common/*.hpp.swp*
+src/common/*.cpp~
+src/common/*.hpp~
+src/sound/*.cpp.swp*
+src/sound/*.hpp.swp*
+src/sound/*.cpp~
+src/sound/*.hpp~
+src/server/*.cpp.swp*
+src/server/*.hpp.swp*
+src/server/*.cpp~
+src/server/*.hpp~
+src/net/*.cpp.swp*
+src/net/*.hpp.swp*
+src/net/*.cpp~
+src/net/*.hpp~
+
 # Windows binaries
 *.exe
 *.dll
-
+*a.out
+*.so
 
 # QtCreator project user settings
 *.user
@@ -20,17 +45,44 @@ build-*
 *.cfg
 
 # Game data
-csm.bin
-CSM.BIN
-CSM.bin
-csm.BIN
+*.bin
+*.BIN
+*.tar
+*.TAR
+CURSED/
+CURSED/*
+cursed/
+cursed/*
+MUSIC/
+MUSIC/*
+music/
+music/*
+ADDON1/
+ADDON1/*
+addon1/
+addon1/*
+borough/
+borough/*
+BOROUGH/
+BOROUGH/*
+USERMAP/
+USERMAP/*
+usermap/
+usermap/*
 
 # Game saves
 saves/*
+SAVES/*
+
+# Screen shots
+*.tga
+*.TGA
 
 # Build system
 CMakeFiles/*
 CMakeFiles
+CMakeDoxyfile.in
+CMakeDoxygenDefaults.cmake
 cmake_install.cmake
 install_manifest.txt
 CMakeCache.txt
@@ -44,3 +96,4 @@ MapToTGAConverter
 ObjToTGAConverter
 PaletteExtractor
 PanzerChasm
+compile_commands.json

.gitmodules

@@ -4,3 +4,9 @@
 [submodule "src/panzer_ogl_lib"]
 	path = src/panzer_ogl_lib
 	url = http://github.com/Panzerschrek/panzer_ogl_lib
+[submodule "external/physfs"]
+	path = external/physfs
+	url = http://github.com/jopadan/physfs
+[submodule "external/cgltf"]
+	path = external/cgltf
+	url = http://github.com/jkuhlmann/cgltf

CMakeLists.txt

@@ -2,29 +2,39 @@ cmake_minimum_required(VERSION 3.1)
 
 project(Chasm-Reverse)
 
-set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED YES)
+
+include(CheckCXXSourceCompiles)
+include(GNUInstallDirs)
+
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
 if(MSVC)
 	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /D _CRT_SECURE_NO_WARNINGS /MP")
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /D _CRT_SECURE_NO_WARNINGS /MP")
 endif()
 
 option(BUILD_TOOLS "Enable compilation of tools" YES)
-include(CheckCXXSourceCompiles)
-include(GNUInstallDirs)
 
-set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/external/physfs)
+
 find_package(SDL2 REQUIRED)
 
 include_directories(${SDL2_INCLUDE_DIR} ${CMAKE_CURRENT_SOURCE_DIR}
-	${CMAKE_CURRENT_SOURCE_DIR}/src/ ${CMAKE_CURRENT_SOURCE_DIR}/src/panzer_ogl_lib)
+	${CMAKE_CURRENT_SOURCE_DIR}/src/
+	${CMAKE_CURRENT_SOURCE_DIR}/src/panzer_ogl_lib
+	${CMAKE_CURRENT_SOURCE_DIR}/external/physfs/src
+	${CMAKE_CURRENT_SOURCE_DIR}/external/cgltf)
 
 # Source and header files
 file(GLOB_RECURSE CHASM_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp")
 file(GLOB_RECURSE CHASM_HEADERS 
 	"${CMAKE_CURRENT_SOURCE_DIR}/src/*.hpp"
 	"${CMAKE_CURRENT_SOURCE_DIR}/src/*.h"
-	"${CMAKE_CURRENT_SOURCE_DIR}/src/*.inl")
+	"${CMAKE_CURRENT_SOURCE_DIR}/src/*.inl"
+	"${CMAKE_CURRENT_SOURCE_DIR}/external/physfs/src/*.h"
+	"${CMAKE_CURRENT_SOURCE_DIR}/external/cgltf/*.h")
 
 # Detect MMX support
 
@@ -48,6 +58,7 @@ endif()
 
 set(CHASM_LIBS
 	${SDL2_LIBRARY}
+	physfs
 )
 
 if(WIN32)