Mostly CMake stuff

.gitignore

@@ -49,6 +49,10 @@ CTestTestfile.cmake
 
 /[Bb]uild*/
 
+## Direnv
+
+/.envrc
+
 ## Nix
 
 /result*

CMake/FindLuaTargets.cmake

@@ -0,0 +1,10 @@
+if(LUA_FOUND AND NOT TARGET Lua::Lua)
+  add_library(Lua::Lua UNKNOWN IMPORTED)
+  set_target_properties(Lua::Lua PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${LUA_INCLUDE_DIR}"
+    IMPORTED_LOCATION "${LUA_LIBRARY}"
+    INTERFACE_LINK_LIBRARIES "${LUA_LIBRARIES}"
+    VERSION "${LUA_VERSION_STRING}"
+  )
+endif()
+

CMake/FindSDLTargets.cmake

@@ -0,0 +1,58 @@
+if(SDL_FOUND AND NOT TARGET SDL::SDL)
+  add_library(SDL::SDL INTERFACE IMPORTED)
+  set_target_properties(SDL::SDL PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_INCLUDE_DIR}"
+    INTERFACE_LINK_LIBRARIES "${SDL_LIBRARY}"
+    # VERSION "${SDL_VERSION_STRING}"
+  )
+endif()
+
+if(SDL_GFX_FOUND AND NOT TARGET SDL::SDL_gfx)
+  add_library(SDL::SDL_gfx UNKNOWN IMPORTED)
+  set_target_properties(SDL::SDL_gfx PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_GFX_INCLUDE_DIRS}"
+    IMPORTED_LOCATION "${SDL_GFX_LIBRARY}"
+    INTERFACE_LINK_LIBRARIES "${SDL_GFX_LIBRARIES}"
+    VERSION "${SDL_GFX_VERSION_STRING}"
+  )
+endif()
+
+if(SDL_MIXER_FOUND AND NOT TARGET SDL::SDL_mixer)
+  add_library(SDL::SDL_mixer UNKNOWN IMPORTED)
+  set_target_properties(SDL::SDL_mixer PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_MIXER_INCLUDE_DIRS}"
+    IMPORTED_LOCATION "${SDL_MIXER_LIBRARY}"
+    INTERFACE_LINK_LIBRARIES "${SDL_MIXER_LIBRARIES}"
+    VERSION "${SDL_MIXER_VERSION_STRING}"
+  )
+endif()
+
+if(SDL_NET_FOUND AND NOT TARGET SDL::SDL_net)
+  add_library(SDL::SDL_net UNKNOWN IMPORTED)
+  set_target_properties(SDL::SDL_net PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_NET_INCLUDE_DIRS}"
+    IMPORTED_LOCATION "${SDL_NET_LIBRARY}"
+    INTERFACE_LINK_LIBRARIES "${SDL_NET_LIBRARIES}"
+    VERSION "${SDL_NET_VERSION_STRING}"
+  )
+endif()
+
+if(SDL_SOUND_FOUND AND NOT TARGET SDL::SDL_sound)
+  add_library(SDL::SDL_sound UNKNOWN IMPORTED)
+  set_target_properties(SDL::SDL_sound PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_SOUND_INCLUDE_DIRS}"
+    IMPORTED_LOCATION "${SDL_SOUND_LIBRARY}"
+    INTERFACE_LINK_LIBRARIES "${SDL_SOUND_LIBRARIES}"
+    VERSION "${SDL_SOUND_VERSION_STRING}"
+  )
+endif()
+
+if(SDL_TTF_FOUND AND NOT TARGET SDL::SDL_ttf)
+  add_library(SDL::SDL_ttf UNKNOWN IMPORTED)
+  set_target_properties(SDL::SDL_ttf PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_TTF_INCLUDE_DIRS}"
+    IMPORTED_LOCATION "${SDL_TTF_LIBRARY}"
+    INTERFACE_LINK_LIBRARIES "${SDL_TTF_LIBRARIES}"
+    VERSION "${SDL_TTF_VERSION_STRING}"
+  )
+endif()

CMake/FindSDL_gfx.cmake

@@ -0,0 +1,85 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See
+# https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindSDL_gfx
+-----------
+
+Locate SDL_gfx library
+
+This module defines:
+
+::
+
+  SDL_GFX_LIBRARIES, the name of the library to link against
+  SDL_GFX_INCLUDE_DIRS, where to find the headers
+  SDL_GFX_FOUND, if false, do not try to link against
+  SDL_GFX_VERSION_STRING - human-readable string containing the version of SDL_gfx
+
+
+
+$SDLDIR is an environment variable that would correspond to the
+./configure --prefix=$SDLDIR used in building SDL.
+
+Created by Eric Wing.  Modified by Dusk Banks.  This was heavily based on
+the FindSDL_net.cmake module, but with modifications for SDL_gfx instead.
+#]=======================================================================]
+
+find_path(SDL_GFX_INCLUDE_DIR SDL_gfxPrimitives.h
+  HINTS
+    ENV SDLGFXDIR
+    ENV SDLDIR
+  PATH_SUFFIXES SDL
+                # path suffixes to search inside ENV{SDLDIR}
+                include/SDL include/SDL12 include/SDL11 include
+)
+
+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(SDL_GFX_LIBRARY
+  NAMES SDL_gfx
+  HINTS
+    ENV SDLGFXDIR
+    ENV SDLDIR
+  PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
+)
+
+if(SDL_GFX_INCLUDE_DIR AND EXISTS "${SDL_GFX_INCLUDE_DIR}/SDL_gfxPrimitives.h")
+  file(STRINGS "${SDL_GFX_INCLUDE_DIR}/SDL_gfxPrimitives.h" SDL_GFX_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_GFXPRIMITIVES_MAJOR[ \t]+[0-9]+$")
+  file(STRINGS "${SDL_GFX_INCLUDE_DIR}/SDL_gfxPrimitives.h" SDL_GFX_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_GFXPRIMITIVES_MINOR[ \t]+[0-9]+$")
+  file(STRINGS "${SDL_GFX_INCLUDE_DIR}/SDL_gfxPrimitives.h" SDL_GFX_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_GFXPRIMITIVES_MICRO[ \t]+[0-9]+$")
+  string(REGEX REPLACE "^#define[ \t]+SDL_GFXPRIMITIVES_MAJOR[ \t]+([0-9]+)$" "\\1" SDL_GFX_VERSION_MAJOR "${SDL_GFX_VERSION_MAJOR_LINE}")
+  string(REGEX REPLACE "^#define[ \t]+SDL_GFXPRIMITIVES_MINOR[ \t]+([0-9]+)$" "\\1" SDL_GFX_VERSION_MINOR "${SDL_GFX_VERSION_MINOR_LINE}")
+  string(REGEX REPLACE "^#define[ \t]+SDL_GFXPRIMITIVES_MICRO[ \t]+([0-9]+)$" "\\1" SDL_GFX_VERSION_PATCH "${SDL_GFX_VERSION_PATCH_LINE}")
+  set(SDL_GFX_VERSION_STRING ${SDL_GFX_VERSION_MAJOR}.${SDL_GFX_VERSION_MINOR}.${SDL_GFX_VERSION_PATCH})
+  unset(SDL_GFX_VERSION_MAJOR_LINE)
+  unset(SDL_GFX_VERSION_MINOR_LINE)
+  unset(SDL_GFX_VERSION_PATCH_LINE)
+  unset(SDL_GFX_VERSION_MAJOR)
+  unset(SDL_GFX_VERSION_MINOR)
+  unset(SDL_GFX_VERSION_PATCH)
+endif()
+
+set(SDL_GFX_LIBRARIES ${SDL_GFX_LIBRARY})
+set(SDL_GFX_INCLUDE_DIRS ${SDL_GFX_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL_gfx
+                                  REQUIRED_VARS SDL_GFX_LIBRARIES SDL_GFX_INCLUDE_DIRS
+                                  VERSION_VAR SDL_GFX_VERSION_STRING)
+
+mark_as_advanced(SDL_GFX_LIBRARY SDL_GFX_INCLUDE_DIR)
+
+if(SDL_GFX_FOUND AND NOT TARGET SDL::SDL_gfx)
+  add_library(SDL::SDL_gfx UNKNOWN IMPORTED)
+  set_target_properties(SDL::SDL_gfx PROPERTIES
+    INTERFACE_INCLUDE_DIRECTORIES "${SDL_GFX_INCLUDE_DIR}"
+    IMPORTED_LOCATION "${SDL_GFX_LIBRARY}"
+    VERSION "${SDL_GFX_VERSION_STRING}"
+  )
+endif()

CMake/FindSQLite3.cmake

@@ -0,0 +1,66 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See
+# https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+FindSQLite3
+-----------
+
+Find the SQLite libraries, v3
+
+IMPORTED targets
+^^^^^^^^^^^^^^^^
+
+This module defines the following :prop_tgt:`IMPORTED` target:
+
+``SQLite::SQLite3``
+
+Result variables
+^^^^^^^^^^^^^^^^
+
+This module will set the following variables if found:
+
+``SQLite3_INCLUDE_DIRS``
+  where to find sqlite3.h, etc.
+``SQLite3_LIBRARIES``
+  the libraries to link against to use SQLite3.
+``SQLite3_VERSION``
+  version of the SQLite3 library found
+``SQLite3_FOUND``
+  TRUE if found
+
+#]=======================================================================]
+
+# Look for the necessary header
+find_path(SQLite3_INCLUDE_DIR NAMES sqlite3.h)
+mark_as_advanced(SQLite3_INCLUDE_DIR)
+
+# Look for the necessary library
+find_library(SQLite3_LIBRARY NAMES sqlite3 sqlite)
+mark_as_advanced(SQLite3_LIBRARY)
+
+# Extract version information from the header file
+if(SQLite3_INCLUDE_DIR)
+    file(STRINGS ${SQLite3_INCLUDE_DIR}/sqlite3.h _ver_line
+         REGEX "^#define SQLITE_VERSION  *\"[0-9]+\\.[0-9]+\\.[0-9]+\""
+         LIMIT_COUNT 1)
+    string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+"
+           SQLite3_VERSION "${_ver_line}")
+    unset(_ver_line)
+endif()
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(SQLite3
+    REQUIRED_VARS SQLite3_INCLUDE_DIR SQLite3_LIBRARY
+    VERSION_VAR SQLite3_VERSION)
+
+# Create the imported target
+if(SQLite3_FOUND)
+    set(SQLite3_INCLUDE_DIRS ${SQLite3_INCLUDE_DIR})
+    set(SQLite3_LIBRARIES ${SQLite3_LIBRARY})
+    if(NOT TARGET SQLite::SQLite3)
+        add_library(SQLite::SQLite3 UNKNOWN IMPORTED)
+        set_target_properties(SQLite::SQLite3 PROPERTIES
+            IMPORTED_LOCATION             "${SQLite3_LIBRARY}"
+            INTERFACE_INCLUDE_DIRECTORIES "${SQLite3_INCLUDE_DIR}")
+    endif()
+endif()