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patternmanager.py
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patternmanager.py
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"""
Pattern Manager
"""
import importlib
import inspect
from pattern.pattern import Pattern
patterns = [
# 'pattern.testpattern',
'pattern.spiralpattern',
'pattern.lifepattern',
'pattern.phasespattern',
'pattern.blinkypattern',
# 'pattern.gifpattern',
'pattern.msftlogopattern',
'pattern.onlyuwpattern',
'pattern.uwpattern',
'pattern.uwpinwheelpattern',
'pattern.clockpattern',
'pattern.hackerpattern',
# 'pattern.dvdpattern',
'pattern.loadingpattern',
'pattern.ripplepattern',
'pattern.offpattern' # off must be the last pattern
]
OFF_PATTERN = len(patterns) - 1
class PatternManager():
"""
Manages a bunch of the patterns and runs the update loop
"""
def __init__(self, colors, dimensions):
self.handler_index = 0
self.handlers = []
# load all of the patterns
for p in patterns:
mod = importlib.import_module(p)
# get pattern subclasses of module
for name, obj in inspect.getmembers(mod):
if obj is not Pattern and isinstance(obj, type) and issubclass(obj, Pattern):
instance = obj(colors, dimensions)
self.handlers.append(instance)
def is_off(self) -> bool:
return self.handler_index == OFF_PATTERN
def off(self):
self.handler_index = OFF_PATTERN
def set_index(self, index: int):
self.handler_index = index
def next_pattern(self):
self.handler_index = (self.handler_index + 1) % (len(patterns) - 1)
def prev_pattern(self):
self.handler_index = (self.handler_index - 1) % (len(patterns) - 1)
def update(self):
self.handlers[self.handler_index].update()