class World:
"""
The Underworlds world data structure
"""
def __init__(self, name, meshes):
self.__scene = Scene()
self.__timeline = Timeline()
self.__meshes = meshes
self.__name = name
def apply_changes(self, header, changes):
invalidations = Invalidations()
invalidations.node_ids_deleted = self.__scene.remove(
changes.nodes_to_delete)
invalidations.node_ids_updated = self.__scene.update(
changes.nodes_to_update)
invalidations.situation_ids_deleted = self.__timeline.remove(
changes.situations_to_delete)
invalidations.situation_ids_updated = self.__timeline.update(
changes.situations_to_update)
for mesh_id in changes.meshes_to_delete:
del self.__meshes[mesh_id]
invalidations.mesh_ids_deleted.append(mesh_id)
for mesh in changes.meshes_to_update:
self.__meshes[mesh.id] = mesh
invalidations.mesh_ids_updated.append(mesh.id)
return invalidations
def reset(self):
self.__scene.reset(self.__scene.root_id())
self.__timeline.reset(self.__timeline.origin().data)
self.__meshes.reset()
