separate static and dynamic libraries completely

dynamic/raylib/__init__.py

@@ -0,0 +1,57 @@
+"""
+This is an attempt at a CFFI dynamic (ABI) binding.  It was failing in the exactly same place the ctypes binding fails, accessing
+materials of a model.  But now it __seems__ to work
+"""
+
+#  Copyright (c) 2021 Richard Smith and others
+#
+#  This program and the accompanying materials are made available under the
+#  terms of the Eclipse Public License 2.0 which is available at
+#  http://www.eclipse.org/legal/epl-2.0.
+#
+#  This Source Code may also be made available under the following Secondary
+#  licenses when the conditions for such availability set forth in the Eclipse
+#  Public License, v. 2.0 are satisfied: GNU General Public License, version 2
+#  with the GNU Classpath Exception which is
+#  available at https://www.gnu.org/software/classpath/license.html.
+#
+#  SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
+
+from cffi import FFI
+import itertools
+import os
+import pathlib
+import platform
+
+MODULE = pathlib.Path(__file__).parent
+
+def raylib_library_path():
+    '''Return the full path of the raylib shared library
+    If the environment variable "USE_EXTERNAL_RAYLIB" is set (no value required)
+    then the library will be loaded from the system library paths.
+    '''
+    def so_path():
+        return str(MODULE) if not 'USE_EXTERNAL_RAYLIB' in os.environ else ''
+    def so_name():
+        '''Returns the appropriate for the library on the current platform.'''
+        lib_filenames = {
+            'Windows': 'libraylib.dll',
+            'Linux': 'libraylib.so',
+            'Darwin': 'libraylib.dylib',
+        }
+        if platform.system() not in lib_filenames:
+            raise ValueError('Unrecognised system "{}"'.format(platform.system()))
+        return lib_filenames.get(platform.system())
+
+    return os.path.join(so_path(), so_name())
+
+
+ffi = FFI()
+ffi.cdef(open(MODULE / "raylib_modified.h").read().replace('RLAPI ', ''))
+
+try:
+    raylib_fname = raylib_library_path()
+    raylib = ffi.dlopen(raylib_fname)
+    print('LOADED DYNAMICALLY SHARED LIB "{}"'.format(raylib_fname))
+except Exception as e:
+    print(e)