def _handle_content_removed(msg: ContentEntity):
in_active_scene = msg.scene == get_active_scene()
# select target context
if in_active_scene:
# active context
cameras, context = _active_cameras, _active_context
elif msg.scene in _context_cache:
# not active but cached context
cameras, context = _context_cache[msg.scene]
else:
# not in any relevant context
return None
# check if it is a camera
if isinstance(msg, Camera):
cameras.remove(msg)
# todo other camera stuff
# look for a component
if msg in context:
# update sorting if necessary
if in_active_scene:
_active_sorting.remove(context[msg])
# remove component from context
del context[msg]
def _handle_content_added(msg: ContentEntity):
in_active_scene = msg.scene == get_active_scene()
# select target context
if in_active_scene:
# active context
cameras, context = _active_cameras, _active_context
elif msg.scene in _context_cache:
# not active but cached context
cameras, context = _context_cache[msg.scene]
else:
# not in any relevant context
return None
# check if it is a camera
if isinstance(msg, Camera):
# todo hand over some rendering target
_active_cameras.append(msg)
# look for a component for content
component = get_component(msg)
if component:
# add component to context
context[msg] = component
# update sorting if necessary
if in_active_scene:
_active_sorting.append(component)
_active_sorting.sort(key=lambda s: s.sorting)
def _handle_content_removed(msg: ContentEntity):
# remove from active core or cached context if core is cached
if msg.scene == get_active_scene():
context = _active_context
elif msg.scene in _context_cache:
context = _context_cache[msg.scene]
else:
return None
if msg in context:
del context[msg]
def _handle_content_added(msg: ContentEntity):
instruction = get_instruction(msg)
if instruction:
# add to active core or cached context if core is cached
if msg.scene == get_active_scene():
# make instruction for msg and add instruction to context
_active_context[msg] = instruction
elif msg.scene in _context_cache:
# update the cached context with msg
instructions = _context_cache[msg.scene]
instructions[msg] = instruction
def cache_active_context() -> None:
# public
scene = get_active_scene()
_context_cache[scene] = _active_context
def cache_active_context() -> None:
scene = get_active_scene()
_context_cache[scene] = _active_cameras, _active_context