+""" In the night, the mould attacks. """
+
+import pygame.locals as pgl
+
+import pymunk
+
+from .base import BaseScene
+from ..lights import LightManager
+from ..obstacles import ObstacleManager
+from ..enemies import Boyd
+from ..events import SceneChangeEvent
+from ..utils import debug_timer
+from ..loader import loader
+from ..transforms import Overlay
+from ..turnip import Turnip
+from ..constants import NIGHT_LENGTH, DEBUG
+
+
+class NightScene(BaseScene):
+
+ DARKNESS = Overlay(colour=(0, 0, 0, 150))
+
+ def enter(self, gamestate):
+ self._space = pymunk.Space()
+ self._obstacles = ObstacleManager(self._space, gamestate)
+ self._lights = LightManager(self._space, gamestate)
+ self._mould = Boyd(gamestate, self._space)
+ self._turnips = []
+ for turnip_data in gamestate.turnips:
+ turnip = Turnip(space=self._space, **turnip_data)
+ self._turnips.append(turnip)
+ self._soil = loader.load_image(
+ "textures", "soil.png", transform=self.DARKNESS)
+ self._total_ticks = 0
+
+ @debug_timer("night.render")
+ def render(self, surface, gamestate):
+ surface.blit(self._soil, (0, 0))
+
+ self._mould.render(surface)
+
+ for turnip in self._turnips[:]:
+ if turnip.eaten:
+ self._turnips.remove(turnip)
+ turnip.remove()
+ gamestate.eaten += 1
+ else:
+ turnip.render(surface)
+
+ self._lights.render_light(surface)
+ self._obstacles.render(surface)
+ self._lights.render_fittings(surface)
+
+ def event(self, ev, gamestate):
+ if ev.type == pgl.KEYDOWN:
+ if ev.key in (pgl.K_q, pgl.K_ESCAPE):
+ from .menu import MenuScene
+ SceneChangeEvent.post(scene=MenuScene())
+ if ev.key == pgl.K_e and DEBUG:
+ self._to_day()
+ elif ev.type == pgl.MOUSEBUTTONDOWN:
+ if ev.button == 1:
+ self._lights.toggle_nearest(ev.pos, surfpos=True)
+ print self._lights.lit_by(ev.pos, surfpos=True)
+
+ def _to_day(self):
+ # End the night
+ from .day import DayScene
+ SceneChangeEvent.post(scene=DayScene())
+
+ @debug_timer("night.tick")
+ def tick(self, gamestate):
+ if self._total_ticks < NIGHT_LENGTH:
+ self._mould.tick(gamestate, self._space, self._lights)
+ self._lights.tick()
+ print "Power usage: ", self._lights.total_power_usage()
+ else:
+ self._to_day()
+ if not self._mould.alive():
+ self._to_day()
+
+ def exit(self, gamestate):
+ turnip_data = [turnip.serialize() for turnip in self._turnips]
+ gamestate.turnips = turnip_data