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 ..widgets import ImageButton
  18 from ..constants import NIGHT_LENGTH, DEBUG, FONTS, SCREEN_SIZE
  19
  20
  21 class NightScene(BaseScene):
  22
  23     DARKNESS = Overlay(colour=(0, 0, 0, 150))
  24
  25     def enter(self, gamestate):
  26         self._space = pymunk.Space()
  27         self._obstacles = ObstacleManager(self._space, gamestate)
  28         self._lights = LightManager(self._space, gamestate)
  29         self._mould = Boyd(gamestate, self._space)
  30         self._turnips = []
  31         for turnip_data in gamestate.turnips:
  32             turnip = Turnip(space=self._space, **turnip_data)
  33             self._turnips.append(turnip)
  34         self._soil = loader.load_image(
  35             "textures", "soil.png", transform=self.DARKNESS)
  36         self._tools = self.create_tools(gamestate)
  37         self._total_ticks = 0
  38         self._do_ticks = True
  39         self._paused = False
  40         self._eaten_tonight = 0
  41         self._night_over_text = []
  42
  43     def create_tools(self, gamestate):
  44         tools = []
  45         tools.append(ImageButton(
  46             '32', 'pause.png', name='pause play', pos=(SCREEN_SIZE[0] - 150, SCREEN_SIZE[1] - 40)))
  47         return tools
  48
  49     @debug_timer("night.render")
  50     def render(self, surface, gamestate):
  51         surface.blit(self._soil, (0, 0))
  52
  53         self._mould.render(surface)
  54
  55         for turnip in self._turnips[:]:
  56             if turnip.eaten:
  57                 self._turnips.remove(turnip)
  58                 turnip.remove()
  59                 gamestate.eaten += 1
  60                 self._eaten_tonight += 1
  61             else:
  62                 turnip.render(surface)
  63
  64         self._lights.render_light(surface)
  65         self._obstacles.render(surface)
  66         self._lights.render_fittings(surface)
  67
  68         for tool in self._tools:
  69             tool.render(surface)
  70
  71         for text, text_pos in self._night_over_text:
  72             surface.blit(text, text_pos, None)
  73
  74     def event(self, ev, gamestate):
  75         if ev.type == pgl.KEYDOWN:
  76             if not self._do_ticks:
  77                 # Any keypress exits
  78                 self._to_day()
  79             if ev.key in (pgl.K_q, pgl.K_ESCAPE):
  80                 from .menu import MenuScene
  81                 SceneChangeEvent.post(scene=MenuScene())
  82             elif ev.key == pgl.K_e and DEBUG:
  83                 self._end_night()
  84             elif ev.key == pgl.K_SPACE:
  85                 self.toggle_pause()
  86         elif ev.type == pgl.MOUSEBUTTONDOWN:
  87             if not self._do_ticks:
  88                 # Any mouse press exits
  89                 self._to_day()
  90             if ev.button == 1:
  91                 self._lights.toggle_nearest(ev.pos, surfpos=True)
  92                 print self._lights.lit_by(ev.pos, surfpos=True)
  93
  94                 # Check tools
  95                 for tool in self._tools:
  96                     if tool.pressed(ev):
  97                         if tool.name == 'pause play':
  98                             self.toggle_pause()
  99
 100     def toggle_pause(self):
 101         self._paused = not self._paused
 102         pause_img = "play.png" if self._paused else "pause.png"
 103         for tool in self._tools:
 104             if tool.name == 'pause play':
 105                 tool.update_image("32", pause_img)
 106
 107     def _to_day(self):
 108         # End the night
 109         from .day import DayScene
 110         SceneChangeEvent.post(scene=DayScene())
 111
 112     def _end_night(self):
 113         self._do_ticks = False
 114         self._night_over_text = []
 115         overlay = pygame.surface.Surface(
 116             (SCREEN_SIZE[0], 240), pgl.SWSURFACE).convert_alpha()
 117         overlay.fill((0, 0, 0, 172))
 118         self._night_over_text.append((overlay, (0, 40)))
 119         self._night_over_text.append(
 120             (shadowed_text("The Night is Over", FONTS["bold"], 48), (300, 50)))
 121         self._night_over_text.append(
 122             (shadowed_text("Turnips eaten tonight: %d" % self._eaten_tonight,
 123                            FONTS["sans"], 32), (300, 130)))
 124         self._night_over_text.append(
 125             (shadowed_text("Surviving turnips: %d" % len(self._turnips),
 126                            FONTS["sans"], 32), (300, 170)))
 127         self._night_over_text.append(
 128             (shadowed_text("Press any key to continue", FONTS["sans"], 24),
 129              (350, 240)))
 130
 131     @debug_timer("night.tick")
 132     def tick(self, gamestate):
 133         if self._do_ticks and not self._paused:
 134             if self._total_ticks < NIGHT_LENGTH:
 135                 self._mould.tick(gamestate, self._space, self._lights)
 136                 self._lights.tick()
 137                 print "Power usage: ", self._lights.total_power_usage()
 138             else:
 139                 self._end_night()
 140             if not self._mould.alive():
 141                 self._end_night()
 142
 143     def exit(self, gamestate):
 144         turnip_data = [turnip.serialize() for turnip in self._turnips]
 145         gamestate.turnips = turnip_data
 146         gamestate.days += 1