def test_find_correct_backend_classes():
D = get_backend_classes('testing')
assert D == {
'input': testing_be.EmptyInput,
'mainloop': testing_be.MainLoop,
'screen': testing_be.EmptyCanvas,
}
def test_find_correct_backend_classes():
D = get_backend_classes('testing')
assert D == {
'input': testing_be.EmptyInput,
'mainloop': testing_be.MainLoop,
'screen': testing_be.EmptyCanvas,
}
def set_backend(self, backend=None):
"""
Define backend used by FGAme.
If called with no arguments, try to load backends in the default order.
If argument is a list, try to load backends in the specified order.
This method return a string with the loaded backend.
"""
if backend is None:
if self._backend is None:
if 'FGAME_BACKEND' in os.environ:
env_be = os.environ['FGAME_BACKEND']
backend = env_be.split(',')
log.info('using backend defined by environ: %s' % env_be)
else:
backend = self._backends
else:
return # backend is configured!
# Prevent changes to a configured backend
if self._backend is not None:
if self._backend != backend:
raise RuntimeError(
'already initialized to %s, cannot change the backend' %
self._backend
)
else:
return
# Load backend by name
if isinstance(backend, str):
if not fgame_backends.supports_backend(backend):
raise ValueError(
'%s backend is not supported in your system' %
backend)
self._backend = backend
self._backend_classes = fgame_backends.get_backend_classes(backend)
log.info('conf: Backend set to %s' % backend)
# Load backend from list
else:
for be in backend:
if fgame_backends.supports_backend(be):
self.set_backend(be)
break
else:
msg = 'none of the requested backends are available.'
if 'pygame' in backend:
msg += (
'\nSupported backends are:'
'\n * pygame'
'\n * sdl2'
# '\n * kivy'
)
raise RuntimeError(msg)
return self._backend
def test_find_pygame_backend():
from FGAme.backends import pygame_be
D = get_backend_classes('pygame')
assert D == {
'input': pygame_be.PyGameInput,
'mainloop': pygame_be.PyGameMainLoop,
'screen': pygame_be.PyGameCanvas,
}
def test_find_pygame_backend():
from FGAme.backends import pygame_be
D = get_backend_classes('pygame')
assert D == {
'input': pygame_be.PyGameInput,
'mainloop': pygame_be.PyGameMainLoop,
'screen': pygame_be.PyGameCanvas,
}
def set_backend(self, backend=None):
"""
Define backend used by FGAme.
If called with no arguments, try to load backends in the default order.
If argument is a list, try to load backends in the specified order.
This method return a string with the loaded backend.
"""
if backend is None:
if self._backend is None:
if 'FGAME_BACKEND' in os.environ:
env_be = os.environ['FGAME_BACKEND']
backend = env_be.split(',')
log.info('using backend defined by environ: %s' % env_be)
else:
backend = self._backends
else:
return # backend is configured!
# Prevent changes to a configured backend
if self._backend is not None:
if self._backend != backend:
raise RuntimeError(
'already initialized to %s, cannot change the backend' %
self._backend)
else:
return
# Load backend by name
if isinstance(backend, str):
if not fgame_backends.supports_backend(backend):
raise ValueError('%s backend is not supported in your system' %
backend)
self._backend = backend
self._backend_classes = fgame_backends.get_backend_classes(backend)
log.info('conf: Backend set to %s' % backend)
# Load backend from list
else:
for be in backend:
if fgame_backends.supports_backend(be):
self.set_backend(be)
break
else:
msg = 'none of the requested backends are available.'
if 'pygame' in backend:
msg += (
'\nSupported backends are:'
'\n * pygame'
'\n * sdl2'
# '\n * kivy'
)
raise RuntimeError(msg)
return self._backend
def set_backend(backend=None):
'''Define o backend a ser utilizado pela FGAme.
Se for chamada sem nenhum argumento, tenta carregar os backends na
ordem padrão. Se o argumento for uma lista, tenta carregar os backends na
ordem especificada pela lista. Retorna uma string descrevendo o backend
carregado.'''
global _backend, _backend_classes
# Função chamada sem argumentos
if backend is None:
if _backend is None:
backend = _backends
else:
return # backend já configurado!
# Previne modificar o backend
if _backend is not None:
if _backend != backend:
raise RuntimeError(
'already initialized to %s, cannot change the backend' %
_backend)
else:
return
# Carrega backend pelo nome
if isinstance(backend, str):
if not _backend_module.supports_backend(backend):
raise ValueError(
'%s backend is not supported in your system' %
backend)
_backend = backend
_backend_classes = _backend_module.get_backend_classes(backend)
_log.info('conf: Backend set to %s' % backend)
# Carrega backend a partir de uma lista
else:
for be in backend:
if _backend_module.supports_backend(be):
set_backend(be)
break
else:
msg = 'none of the requested backends are available.'
if 'pygame' in backend:
msg += (
'\nSupported backends are:'
'\n * pygame'
'\n * sdl2'
# '\n * kivy'
)
raise RuntimeError(msg)
return _backend
def set_backend(self, backend=None):
'''Define o backend a ser utilizado pela FGAme.
Se for chamada sem nenhum argumento, tenta carregar os backends na
ordem dada por self.backends. Se o argumento for uma lista, tenta
carregar os backends na ordem especificada pela lista.'''
# Função chamada sem argumentos
if backend is None:
if self._backend is None:
backend = self._backends
else:
return # backend já configurado!
# Previne modificar o backend
if self._backend is not None:
if self._backend != backend:
raise RuntimeError(
'already initialized to %s, cannot change the backend' %
self._backend)
else:
return
# Carrega backend pelo nome
if isinstance(backend, str):
if not backends.supports_backend(backend):
raise ValueError('%s backend is not supported in your system' %
backend)
self._backend = backend
self._backend_classes = backends.get_backend_classes(backend)
log.info('conf: Backend set to %s' % backend)
# Carrega backend a partir de uma lista
else:
for be in backend:
if backends.supports_backend(be):
self.set_backend(be)
break
else:
msg = 'none of the requested backends are available.'
if 'pygame' in backend:
msg += (
'\nSupported backends are:'
'\n * pygame'
'\n * sdl2'
# '\n * kivy'
)
raise RuntimeError(msg)