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from .screen_checker import ScreenChecker
from .game import Game
class StateMachine:
"Game state machine"
def __init__(self, matrix, input):
"Initializes game machine"
self.state = "initializing"
self.matrix = matrix
self.input = input
self.__update_state__('screen_checker')
def __update_state__(self, state):
"Applies given state"
def __exception__():
raise Exception('Can\'t transfer from ' + self.state + ' to '
+ state)
if state == "screen_checker":
if self.state == "initializing":
self.screen_checker = ScreenChecker(self.matrix)
else:
__exception__()
elif state == "game":
if self.state == "screen_checker" or self.state == "game-over":
self.game = Game(self.matrix)
elif self.state == "game-pause":
pass
else:
__exception__()
elif state == "game-pause":
if self.state != "game":
__exception__()
elif state == "game-over":
if self.state != "game":
__exception__()
self.matrix.fill('red')
i = self.matrix.height - 2
# Show score
for _ in range(int(self.game.score / 5)):
for s in range(5):
self.matrix.pixel(s + 3, i, 'green')
i -= 1
for s in range(self.game.score % 5):
self.matrix.pixel(s + 3, i, 'green')
self.matrix.display()
else:
__exception__()
self.state = state
def tick(self):
"Do tick"
inpt = self.input.check()
if self.state == "screen_checker":
if inpt['start']:
self.__update_state__('game')
else:
self.screen_checker.tick()
elif self.state == "game":
if inpt['start']:
self.__update_state__('game-pause')
elif not self.game.tick(inpt):
self.__update_state__('game-over')
elif self.state == "game-pause":
if inpt['start']:
self.__update_state__('game')
elif inpt['select']:
self.game = Game(self.matrix)
self.__update_state__('game')
elif self.state == "game-over":
if inpt['start']:
self.__update_state__('game')
else:
raise Exception('Invalid state ' + self.state)
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