def new_event(self, date, event_index=None):
'''returns a new event'''
# if not any memory is loaded
if not "_self" in self.current_streamview.atoms.keys():
return None
# if event is specified, play it now
if event_index != None:
self.reset()
event_index = int(event_index)
z_, event = self.current_streamview.atoms["_self"].memorySpace[
event_index]
# using actual transformation?
transforms = [Transforms.NoTransform()]
self.waiting_to_jump = False
else:
# get global activity
global_activity = self.get_merged_activity(
date, merge_actions=self.merge_actions)
# if going to jump, erases peak in neighbour event
if self.waiting_to_jump:
zetas = global_activity.get_dates_list()
states, _ = self.current_streamview.atoms[
"_self"].memorySpace.get_events(zetas)
for i in range(0, len(states)):
if states[i].index == self.improvisation_memory[-1][
0].index + 1:
del global_activity[i]
self.waiting_to_jump = False
if len(global_activity) != 0 and len(
self.improvisation_memory) > 0:
event, transforms = self.decide(global_activity)
if event == None:
# if no event returned, choose default
event, transforms = self.decide_default()
if type(transforms) != list:
transforms = [transforms]
else:
# if activity is empty, choose default
event, transforms = self.decide_default()
for transform in transforms:
event = transform.decode(event)
# add event to improvisation memory
self.improvisation_memory.append((event, transforms))
# influences private streamview if auto-influence activated
if self.self_influence:
self.current_streamview.influence("_self", date, event.get_label())
# sends state num
self.send([
event.index,
event.get_contents().get_zeta(),
event.get_contents().get_state_length()
], "/state")
return event
def decide_default(self):
'''default decision method : selecting conjoint event'''
if len(self.improvisation_memory) != 0:
previousState = self.improvisation_memory[-1][0]
new = self.current_streamview.atoms["_self"].memorySpace[
(previousState.index + 1) %
len(self.current_streamview.atoms["_self"].memorySpace)]
trans = self.improvisation_memory[-1][1]
else:
new = self.current_streamview.atoms["_self"].memorySpace[0]
trans = [Transforms.NoTransform()]
return new[1], trans
