def step(self, action):
self.evManager.post(
Event.MovePlayerEvent(Vector2(action[0], action[1])))
now = pygame.time.get_ticks()
delta = (now - self.previous) / 1000.0
self.previous = now
self.evManager.post(Event.TickEvent(delta))
car = self.game.character
new_state = car.get_state()
if car.is_on_path():
self.reward = car.velocity[0] / car.max_front_velocity
else:
self.reward = -1.0
self.score += self.reward
done = not self.keepGoing
self.step_counter += 1
if self.step_counter == self.life_span:
self.keepGoing = False
if not car.is_on_path():
self.step_outside_path_counter += 1
if self.step_outside_path_counter == self.life_span_outside_path:
self.keepGoing = False
return new_state, self.reward, done, self.info
def run(self):
while self.keepGoing:
now = pygame.time.get_ticks()
delta = (now - self.previous) / 1000.0
self.previous = now
self.evManager.post(Event.TickEvent(delta))
pygame.quit()