tabakrolletjie/scenes/night.py

   1 """ In the night, the mould attacks. """
   2
   3 import pygame.surface
   4 import pygame.locals as pgl
   5
   6 import pymunk
   7
   8 from .base import BaseScene
   9 from ..lights import LightManager
  10 from ..obstacles import ObstacleManager
  11 from ..enemies import Boyd
  12 from ..events import SceneChangeEvent
  13 from ..utils import debug_timer, shadowed_text
  14 from ..loader import loader
  15 from ..transforms import Overlay
  16 from ..turnip import Turnip
  17 from ..constants import NIGHT_LENGTH, DEBUG, FONTS, SCREEN_SIZE
  18
  19
  20 class NightScene(BaseScene):
  21
  22     DARKNESS = Overlay(colour=(0, 0, 0, 150))
  23
  24     def enter(self, gamestate):
  25         self._space = pymunk.Space()
  26         self._obstacles = ObstacleManager(self._space, gamestate)
  27         self._lights = LightManager(self._space, gamestate)
  28         self._mould = Boyd(gamestate, self._space)
  29         self._turnips = []
  30         for turnip_data in gamestate.turnips:
  31             turnip = Turnip(space=self._space, **turnip_data)
  32             self._turnips.append(turnip)
  33         self._soil = loader.load_image(
  34             "textures", "soil.png", transform=self.DARKNESS)
  35         self._total_ticks = 0
  36         self._do_ticks = True
  37         self._eaten_tonight = 0
  38         self._night_over_text = []
  39
  40     @debug_timer("night.render")
  41     def render(self, surface, gamestate):
  42         surface.blit(self._soil, (0, 0))
  43
  44         self._mould.render(surface)
  45
  46         for turnip in self._turnips[:]:
  47             if turnip.eaten:
  48                 self._turnips.remove(turnip)
  49                 turnip.remove()
  50                 gamestate.eaten += 1
  51                 self._eaten_tonight += 1
  52             else:
  53                 turnip.render(surface)
  54
  55         self._lights.render_light(surface)
  56         self._obstacles.render(surface)
  57         self._lights.render_fittings(surface)
  58
  59         for text, text_pos in self._night_over_text:
  60             surface.blit(text, text_pos, None)
  61
  62     def event(self, ev, gamestate):
  63         if ev.type == pgl.KEYDOWN:
  64             if not self._do_ticks:
  65                 # Any keypress exits
  66                 self._to_day()
  67             if ev.key in (pgl.K_q, pgl.K_ESCAPE):
  68                 from .menu import MenuScene
  69                 SceneChangeEvent.post(scene=MenuScene())
  70             if ev.key == pgl.K_e and DEBUG:
  71                 self._end_night()
  72         elif ev.type == pgl.MOUSEBUTTONDOWN:
  73             if not self._do_ticks:
  74                 # Any mouse press exits
  75                 self._to_day()
  76             if ev.button == 1:
  77                 self._lights.toggle_nearest(ev.pos, surfpos=True)
  78                 print self._lights.lit_by(ev.pos, surfpos=True)
  79
  80     def _to_day(self):
  81         # End the night
  82         from .day import DayScene
  83         SceneChangeEvent.post(scene=DayScene())
  84
  85     def _end_night(self):
  86         self._do_ticks = False
  87         self._night_over_text = []
  88         overlay = pygame.surface.Surface(
  89             (SCREEN_SIZE[0], 240), pgl.SWSURFACE).convert_alpha()
  90         overlay.fill((0, 0, 0, 172))
  91         self._night_over_text.append((overlay, (0, 40)))
  92         self._night_over_text.append(
  93             (shadowed_text("The Night is Over", FONTS["bold"], 48), (300, 50)))
  94         self._night_over_text.append(
  95             (shadowed_text("Turnips eaten tonight: %d" % self._eaten_tonight,
  96                            FONTS["sans"], 32), (300, 130)))
  97         self._night_over_text.append(
  98             (shadowed_text("Surviving turnips: %d" % len(self._turnips),
  99                            FONTS["sans"], 32), (300, 170)))
 100         self._night_over_text.append(
 101             (shadowed_text("Press any key to continue", FONTS["sans"], 24),
 102              (350, 240)))
 103
 104     @debug_timer("night.tick")
 105     def tick(self, gamestate):
 106         if self._do_ticks:
 107             if self._total_ticks < NIGHT_LENGTH:
 108                 self._mould.tick(gamestate, self._space, self._lights)
 109                 self._lights.tick()
 110                 print "Power usage: ", self._lights.total_power_usage()
 111             else:
 112                 self._end_night()
 113             if not self._mould.alive():
 114                 self._end_night()
 115
 116     def exit(self, gamestate):
 117         turnip_data = [turnip.serialize() for turnip in self._turnips]
 118         gamestate.turnips = turnip_data
 119         gamestate.days += 1