4 files changed, 21 insertions, 359 deletions

diff --git a/cmake/FindSDL2.cmake b/cmake/FindSDL2.cmake
deleted file mode 100644
index 464ca2d..0000000
--- a/cmake/FindSDL2.cmake
+++ /dev/null
@@ -1,173 +0,0 @@
-
-# This module defines
-# SDL2_LIBRARY, the name of the library to link against
-# SDL2_FOUND, if false, do not try to link to SDL2
-# SDL2_INCLUDE_DIR, where to find SDL.h
-#
-# This module responds to the the flag:
-# SDL2_BUILDING_LIBRARY
-# If this is defined, then no SDL2main will be linked in because
-# only applications need main().
-# Otherwise, it is assumed you are building an application and this
-# module will attempt to locate and set the the proper link flags
-# as part of the returned SDL2_LIBRARY variable.
-#
-# Don't forget to include SDLmain.h and SDLmain.m your project for the
-# OS X framework based version. (Other versions link to -lSDL2main which
-# this module will try to find on your behalf.) Also for OS X, this
-# module will automatically add the -framework Cocoa on your behalf.
-#
-#
-# Additional Note: If you see an empty SDL2_LIBRARY_TEMP in your configuration
-# and no SDL2_LIBRARY, it means CMake did not find your SDL2 library
-# (SDL2.dll, libsdl2.so, SDL2.framework, etc).
-# Set SDL2_LIBRARY_TEMP to point to your SDL2 library, and configure again.
-# Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this value
-# as appropriate. These values are used to generate the final SDL2_LIBRARY
-# variable, but when these values are unset, SDL2_LIBRARY does not get created.
-#
-#
-# $SDL2DIR is an environment variable that would
-# correspond to the ./configure --prefix=$SDL2DIR
-# used in building SDL2.
-# l.e.galup  9-20-02
-#
-# Modified by Eric Wing.
-# Added code to assist with automated building by using environmental variables
-# and providing a more controlled/consistent search behavior.
-# Added new modifications to recognize OS X frameworks and
-# additional Unix paths (FreeBSD, etc).
-# Also corrected the header search path to follow "proper" SDL guidelines.
-# Added a search for SDL2main which is needed by some platforms.
-# Added a search for threads which is needed by some platforms.
-# Added needed compile switches for MinGW.
-#
-# On OSX, this will prefer the Framework version (if found) over others.
-# People will have to manually change the cache values of
-# SDL2_LIBRARY to override this selection or set the CMake environment
-# CMAKE_INCLUDE_PATH to modify the search paths.
-#
-# Note that the header path has changed from SDL2/SDL.h to just SDL.h
-# This needed to change because "proper" SDL convention
-# is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability
-# reasons because not all systems place things in SDL2/ (see FreeBSD).
-
-#=============================================================================
-# Copyright 2003-2009 Kitware, Inc.
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
-
-# message("<FindSDL2.cmake>")
-
-SET(SDL2_SEARCH_PATHS
-	~/Library/Frameworks
-	/Library/Frameworks
-	/usr/local
-	/usr
-	/sw # Fink
-	/opt/local # DarwinPorts
-	/opt/csw # Blastwave
-	/opt
-	${SDL2_PATH}
-)
-
-FIND_PATH(SDL2_INCLUDE_DIR SDL.h
-	HINTS
-	$ENV{SDL2DIR}
-	PATH_SUFFIXES include/SDL2 include
-	PATHS ${SDL2_SEARCH_PATHS}
-)
-
-if(CMAKE_SIZEOF_VOID_P EQUAL 8) 
-	set(PATH_SUFFIXES lib64 lib/x64 lib)
-else() 
-	set(PATH_SUFFIXES lib/x86 lib)
-endif() 
-
-FIND_LIBRARY(SDL2_LIBRARY_TEMP
-	NAMES SDL2
-	HINTS
-	$ENV{SDL2DIR}
-	PATH_SUFFIXES ${PATH_SUFFIXES}
-	PATHS ${SDL2_SEARCH_PATHS}
-)
-
-IF(NOT SDL2_BUILDING_LIBRARY)
-	IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
-		# Non-OS X framework versions expect you to also dynamically link to
-		# SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms
-		# seem to provide SDL2main for compatibility even though they don't
-		# necessarily need it.
-		FIND_LIBRARY(SDL2MAIN_LIBRARY
-			NAMES SDL2main
-			HINTS
-			$ENV{SDL2DIR}
-			PATH_SUFFIXES ${PATH_SUFFIXES}
-			PATHS ${SDL2_SEARCH_PATHS}
-		)
-	ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
-ENDIF(NOT SDL2_BUILDING_LIBRARY)
-
-# SDL2 may require threads on your system.
-# The Apple build may not need an explicit flag because one of the
-# frameworks may already provide it.
-# But for non-OSX systems, I will use the CMake Threads package.
-IF(NOT APPLE)
-	FIND_PACKAGE(Threads)
-ENDIF(NOT APPLE)
-
-# MinGW needs an additional link flag, -mwindows
-# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -mwindows
-IF(MINGW)
-	SET(MINGW32_LIBRARY mingw32 "-mwindows" CACHE STRING "mwindows for MinGW")
-ENDIF(MINGW)
-
-IF(SDL2_LIBRARY_TEMP)
-	# For SDL2main
-	IF(NOT SDL2_BUILDING_LIBRARY)
-		IF(SDL2MAIN_LIBRARY)
-			SET(SDL2_LIBRARY_TEMP ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY_TEMP})
-		ENDIF(SDL2MAIN_LIBRARY)
-	ENDIF(NOT SDL2_BUILDING_LIBRARY)
-
-	# For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
-	# CMake doesn't display the -framework Cocoa string in the UI even
-	# though it actually is there if I modify a pre-used variable.
-	# I think it has something to do with the CACHE STRING.
-	# So I use a temporary variable until the end so I can set the
-	# "real" variable in one-shot.
-	IF(APPLE)
-		SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa")
-	ENDIF(APPLE)
-
-	# For threads, as mentioned Apple doesn't need this.
-	# In fact, there seems to be a problem if I used the Threads package
-	# and try using this line, so I'm just skipping it entirely for OS X.
-	IF(NOT APPLE)
-		SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
-	ENDIF(NOT APPLE)
-
-	# For MinGW library
-	IF(MINGW)
-		SET(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP})
-	ENDIF(MINGW)
-
-	# Set the final string here so the GUI reflects the final state.
-	SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found")
-	# Set the temp variable to INTERNAL so it is not seen in the CMake GUI
-	SET(SDL2_LIBRARY_TEMP "${SDL2_LIBRARY_TEMP}" CACHE INTERNAL "")
-ENDIF(SDL2_LIBRARY_TEMP)
-
-# message("</FindSDL2.cmake>")
-
-INCLUDE(FindPackageHandleStandardArgs)
-
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR)
diff --git a/cmake/FindSDL2_net.cmake b/cmake/FindSDL2_net.cmake
deleted file mode 100644
index 2ad6b9b..0000000
--- a/cmake/FindSDL2_net.cmake
+++ /dev/null
@@ -1,88 +0,0 @@
-# - Locate SDL2_net library
-# This module defines:
-#  SDL2_NET_LIBRARIES, the name of the library to link against
-#  SDL2_NET_INCLUDE_DIRS, where to find the headers
-#  SDL2_NET_FOUND, if false, do not try to link against
-#  SDL2_NET_VERSION_STRING - human-readable string containing the version of SDL2_net
-#
-# For backward compatiblity the following variables are also set:
-#  SDLNET_LIBRARY (same value as SDL2_NET_LIBRARIES)
-#  SDLNET_INCLUDE_DIR (same value as SDL2_NET_INCLUDE_DIRS)
-#  SDLNET_FOUND (same value as SDL2_NET_FOUND)
-#
-# $SDLDIR is an environment variable that would
-# correspond to the ./configure --prefix=$SDLDIR
-# used in building SDL.
-#
-# Created by Eric Wing. This was influenced by the FindSDL.cmake
-# module, but with modifications to recognize OS X frameworks and
-# additional Unix paths (FreeBSD, etc).
-
-#=============================================================================
-# Copyright 2005-2009 Kitware, Inc.
-# Copyright 2012 Benjamin Eikel
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
-
-if(NOT SDL2_NET_INCLUDE_DIR AND SDLNET_INCLUDE_DIR)
-  set(SDL2_NET_INCLUDE_DIR ${SDLNET_INCLUDE_DIR} CACHE PATH "directory cache
-entry initialized from old variable name")
-endif()
-find_path(SDL2_NET_INCLUDE_DIR SDL_net.h
-  HINTS
-    ENV SDLNETDIR
-    ENV SDLDIR
-  PATH_SUFFIXES include/SDL2 include/SDL2.0 include
-)
-
-if(NOT SDL2_NET_LIBRARY AND SDLNET_LIBRARY)
-  set(SDL2_NET_LIBRARY ${SDLNET_LIBRARY} CACHE FILEPATH "file cache entry
-initialized from old variable name")
-endif()
-find_library(SDL2_NET_LIBRARY
-  NAMES SDL2_net
-  HINTS
-    ENV SDLNETDIR
-    ENV SDLDIR
-  PATH_SUFFIXES lib
-)
-
-if(SDL2_NET_INCLUDE_DIR AND EXISTS "${SDL2_NET_INCLUDE_DIR}/SDL2_net.h")
-  file(STRINGS "${SDL2_NET_INCLUDE_DIR}/SDL2_net.h" SDL2_NET_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL2_NET_MAJOR_VERSION[ \t]+[0-9]+$")
-  file(STRINGS "${SDL2_NET_INCLUDE_DIR}/SDL2_net.h" SDL2_NET_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL2_NET_MINOR_VERSION[ \t]+[0-9]+$")
-  file(STRINGS "${SDL2_NET_INCLUDE_DIR}/SDL2_net.h" SDL2_NET_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL2_NET_PATCHLEVEL[ \t]+[0-9]+$")
-  string(REGEX REPLACE "^#define[ \t]+SDL2_NET_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_NET_VERSION_MAJOR "${SDL2_NET_VERSION_MAJOR_LINE}")
-  string(REGEX REPLACE "^#define[ \t]+SDL2_NET_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_NET_VERSION_MINOR "${SDL2_NET_VERSION_MINOR_LINE}")
-  string(REGEX REPLACE "^#define[ \t]+SDL2_NET_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_NET_VERSION_PATCH "${SDL2_NET_VERSION_PATCH_LINE}")
-  set(SDL2_NET_VERSION_STRING ${SDL2_NET_VERSION_MAJOR}.${SDL2_NET_VERSION_MINOR}.${SDL2_NET_VERSION_PATCH})
-  unset(SDL2_NET_VERSION_MAJOR_LINE)
-  unset(SDL2_NET_VERSION_MINOR_LINE)
-  unset(SDL2_NET_VERSION_PATCH_LINE)
-  unset(SDL2_NET_VERSION_MAJOR)
-  unset(SDL2_NET_VERSION_MINOR)
-  unset(SDL2_NET_VERSION_PATCH)
-endif()
-
-set(SDL2_NET_LIBRARIES ${SDL2_NET_LIBRARY})
-set(SDL2_NET_INCLUDE_DIRS ${SDL2_NET_INCLUDE_DIR})
-
-include(FindPackageHandleStandardArgs)
-
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_net
-                                  REQUIRED_VARS SDL2_NET_LIBRARIES SDL2_NET_INCLUDE_DIRS
-                                  VERSION_VAR SDL2_NET_VERSION_STRING)
-
-# for backward compatiblity
-set(SDLNET_LIBRARY ${SDL2_NET_LIBRARIES})
-set(SDLNET_INCLUDE_DIR ${SDL2_NET_INCLUDE_DIRS})
-set(SDLNET_FOUND ${SDL2_NET_FOUND})
-
-mark_as_advanced(SDL2_NET_LIBRARY SDL2_NET_INCLUDE_DIR)
\ No newline at end of file
diff --git a/cmake/FindSDL2_ttf.cmake b/cmake/FindSDL2_ttf.cmake
deleted file mode 100644
index 8b2edcb..0000000
--- a/cmake/FindSDL2_ttf.cmake
+++ /dev/null
@@ -1,98 +0,0 @@
-# Locate SDL_ttf library
-#
-# This module defines:
-#
-# ::
-#
-#   SDL2_TTF_LIBRARIES, the name of the library to link against
-#   SDL2_TTF_INCLUDE_DIRS, where to find the headers
-#   SDL2_TTF_FOUND, if false, do not try to link against
-#   SDL2_TTF_VERSION_STRING - human-readable string containing the version of SDL_ttf
-#
-#
-#
-# For backward compatibility the following variables are also set:
-#
-# ::
-#
-#   SDLTTF_LIBRARY (same value as SDL2_TTF_LIBRARIES)
-#   SDLTTF_INCLUDE_DIR (same value as SDL2_TTF_INCLUDE_DIRS)
-#   SDLTTF_FOUND (same value as SDL2_TTF_FOUND)
-#
-#
-#
-# $SDLDIR is an environment variable that would correspond to the
-# ./configure --prefix=$SDLDIR used in building SDL.
-#
-# Created by Eric Wing.  This was influenced by the FindSDL.cmake
-# module, but with modifications to recognize OS X frameworks and
-# additional Unix paths (FreeBSD, etc).
-
-#=============================================================================
-# Copyright 2005-2009 Kitware, Inc.
-# Copyright 2012 Benjamin Eikel
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
-
-find_path(SDL2_TTF_INCLUDE_DIR SDL_ttf.h
-        HINTS
-        ENV SDL2TTFDIR
-        ENV SDL2DIR
-        PATH_SUFFIXES SDL2
-        # path suffixes to search inside ENV{SDLDIR}
-        include/SDL2 include
-        PATHS ${SDL2_TTF_PATH}
-        )
-
-if (CMAKE_SIZEOF_VOID_P EQUAL 8)
-    set(VC_LIB_PATH_SUFFIX lib/x64)
-else ()
-    set(VC_LIB_PATH_SUFFIX lib/x86)
-endif ()
-
-find_library(SDL2_TTF_LIBRARY
-        NAMES SDL2_ttf
-        HINTS
-        ENV SDL2TTFDIR
-        ENV SDL2DIR
-        PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
-        PATHS ${SDL2_TTF_PATH}
-        )
-
-if (SDL2_TTF_INCLUDE_DIR AND EXISTS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h")
-    file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_TTF_MAJOR_VERSION[ \t]+[0-9]+$")
-    file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_TTF_MINOR_VERSION[ \t]+[0-9]+$")
-    file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_TTF_PATCHLEVEL[ \t]+[0-9]+$")
-    string(REGEX REPLACE "^#define[ \t]+SDL_TTF_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_MAJOR "${SDL2_TTF_VERSION_MAJOR_LINE}")
-    string(REGEX REPLACE "^#define[ \t]+SDL_TTF_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_MINOR "${SDL2_TTF_VERSION_MINOR_LINE}")
-    string(REGEX REPLACE "^#define[ \t]+SDL_TTF_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_PATCH "${SDL2_TTF_VERSION_PATCH_LINE}")
-    set(SDL2_TTF_VERSION_STRING ${SDL2_TTF_VERSION_MAJOR}.${SDL2_TTF_VERSION_MINOR}.${SDL2_TTF_VERSION_PATCH})
-    unset(SDL2_TTF_VERSION_MAJOR_LINE)
-    unset(SDL2_TTF_VERSION_MINOR_LINE)
-    unset(SDL2_TTF_VERSION_PATCH_LINE)
-    unset(SDL2_TTF_VERSION_MAJOR)
-    unset(SDL2_TTF_VERSION_MINOR)
-    unset(SDL2_TTF_VERSION_PATCH)
-endif ()
-
-set(SDL2_TTF_LIBRARIES ${SDL2_TTF_LIBRARY})
-set(SDL2_TTF_INCLUDE_DIRS ${SDL2_TTF_INCLUDE_DIR})
-
-include(FindPackageHandleStandardArgs)
-
-FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_ttf
-        REQUIRED_VARS SDL2_TTF_LIBRARIES SDL2_TTF_INCLUDE_DIRS
-        VERSION_VAR SDL2_TTF_VERSION_STRING)
-
-# for backward compatibility
-set(SDLTTF_LIBRARY ${SDL2_TTF_LIBRARIES})
-set(SDLTTF_INCLUDE_DIR ${SDL2_TTF_INCLUDE_DIRS})
-set(SDLTTF_FOUND ${SDL2_TTF_FOUND})
diff --git a/cmake/get_cpm.cmake b/cmake/get_cpm.cmake
new file mode 100644
index 0000000..56db226
--- /dev/null
+++ b/cmake/get_cpm.cmake
@@ -0,0 +1,21 @@
+set(CPM_DOWNLOAD_VERSION 0.32.1)
+
+if(CPM_SOURCE_CACHE)
+  # Expand relative path. This is important if the provided path contains a tilde (~)
+  get_filename_component(CPM_SOURCE_CACHE ${CPM_SOURCE_CACHE} ABSOLUTE)
+  set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
+elseif(DEFINED ENV{CPM_SOURCE_CACHE})
+  set(CPM_DOWNLOAD_LOCATION "$ENV{CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
+else()
+  set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
+endif()
+
+if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
+  message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
+  file(DOWNLOAD
+       https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
+       ${CPM_DOWNLOAD_LOCATION}
+  )
+endif()
+
+include(${CPM_DOWNLOAD_LOCATION})