tabakrolletjie/scenes/day.py

   1 """ Be prepared. """
   2
   3 import math
   4
   5 import pygame.display
   6 import pygame.surface
   7 import pygame.locals as pgl
   8
   9 import pymunk
  10 import pymunk.pygame_util
  11
  12 from .base import BaseScene
  13 from ..lights import LightManager
  14 from ..obstacles import ObstacleManager
  15 from ..events import SceneChangeEvent
  16 from ..utils import debug_timer, shadowed_text
  17 from ..loader import loader
  18 from ..transforms import Overlay, Multiply, Alpha
  19
  20 from ..constants import SCREEN_SIZE, FONTS, COLOURS
  21 from ..widgets import ImageButton
  22 from ..turnip import Turnip, TurnipInvalidPosition
  23
  24
  25 class DayScene(BaseScene):
  26
  27     BRIGHTNESS = Overlay(colour=(255, 255, 255, 50))
  28
  29     def enter(self, gamestate):
  30         self._space = pymunk.Space()
  31         self._toolbar_font = loader.load_font(FONTS['sans'], size=20)
  32         self._obstacles = ObstacleManager(self._space, gamestate)
  33         self._lights = LightManager(self._space, gamestate)
  34         self._turnips = []
  35         self._seeds = gamestate.seeds
  36         self._harvested = gamestate.harvested
  37         self._paused = False
  38         self._tool = None
  39         self._light_color = None
  40         self._dragging = None
  41         # Turnip
  42         self.grow_turnips(gamestate)
  43         # Tools
  44         self._light_toolbar = []
  45         self._tools = self.create_tools(gamestate)
  46         self._update_toolbar(gamestate)
  47         # Background
  48         self._soil = loader.load_image(
  49             "textures", "soil.png", transform=self.BRIGHTNESS)
  50         # Check if we've lost
  51         self._game_over_text = []
  52         if self._seeds == 0 and len(self._turnips) == 0:
  53             self._draw_game_over_text()
  54
  55     def _draw_game_over_text(self):
  56         overlay = pygame.surface.Surface(
  57             (SCREEN_SIZE[0], 240), pgl.SWSURFACE).convert_alpha()
  58         overlay.fill((0, 0, 0, 128))
  59         self._game_over_text.append((overlay, (0, 250)))
  60         self._game_over_text.append(
  61             (shadowed_text("You Lost", FONTS["bold"], 48), (400, 280)))
  62         self._game_over_text.append(
  63             (shadowed_text("You have no seeds and no turnips growing",
  64                            FONTS["sans"], 24), (250, 350)))
  65         self._game_over_text.append(
  66             (shadowed_text("Press a key to return to the menu",
  67                            FONTS["sans"], 24), (250, 400)))
  68
  69     def grow_turnips(self, gamestate):
  70         for turnip_data in gamestate.turnips:
  71             turnip = Turnip(space=self._space, **turnip_data)
  72             # Turnips grow at dawn
  73             seeds = turnip.grow()
  74             if seeds:
  75                 self._seeds += seeds
  76                 self._harvested += 1
  77             else:
  78                 self._turnips.append(turnip)
  79
  80     def create_tools(self, gamestate):
  81         tools = []
  82         x, y, step = 0, SCREEN_SIZE[1] - 40, 50
  83
  84         tools.append(ImageButton(
  85             '32', 'default_cursor.png', name='reset tool', pos=(x, y)))
  86         x += step
  87         tools.append(ImageButton('32', 'seed.png', name='seed', pos=(x, y)))
  88         x += step
  89
  90         for light_config in gamestate.station["available_lights"]:
  91             tool = ImageButton(
  92                 '32', '%s.png' % light_config["type"], name='light',
  93                 pos=(x, y))
  94             tool.light_config = light_config
  95             tools.append(tool)
  96             x += step
  97
  98         tools.append(ImageButton(
  99             '32', 'night.png', name='start night', pos=(SCREEN_SIZE[0] - 100, y)))
 100         tools.append(ImageButton(
 101             '32', 'exit.png', name='exit', pos=(SCREEN_SIZE[0] - 50, y)))
 102         return tools
 103
 104     def exit(self, gamestate):
 105         self._unset_cursor()
 106         gamestate.seeds = self._seeds
 107         gamestate.harvested = self._harvested
 108         turnip_data = [turnip.serialize() for turnip in self._turnips]
 109         gamestate.turnips = turnip_data
 110
 111     @debug_timer("day.render")
 112     def render(self, surface, gamestate):
 113         surface.blit(self._soil, (0, 0))
 114
 115         for turnip in self._turnips:
 116             turnip.render(surface)
 117         self._lights.render_light(surface)
 118         self._obstacles.render(surface)
 119         self._lights.render_fittings(surface)
 120         surface.blit(self._toolbar, (120, 10), None)
 121         for tool in self._tools:
 122             tool.render(surface)
 123         for light_tool in self._light_toolbar:
 124             light_tool.render(surface)
 125         self._draw_cursor(surface)
 126         if self._game_over_text:
 127             for surf, pos in self._game_over_text:
 128                 surface.blit(surf, pos)
 129
 130     def _draw_light_toolbar(self, light_config, x):
 131         self._light_toolbar = []
 132         height = SCREEN_SIZE[1] - 80
 133         for color in sorted(COLOURS.keys()):
 134             light_tool = ImageButton('32', light_config["type"] + '.png',
 135                                      pos=(x, height), name=color,
 136                                      transform=Multiply(colour=COLOURS[color]))
 137             self._light_toolbar.append(light_tool)
 138             x += 40
 139
 140     def _clear_light_toolbar(self):
 141         self._light_toolbar = []
 142
 143     def _place_seed(self, gamestate, ev):
 144         if self._seeds > 0:
 145             # plant seed
 146             # We don't want top-left to equal the mouse position,
 147             # since that looks weird, but we don't want to center
 148             # the turnip under the mouse either, since that
 149             # causes issues as well, so we compromise
 150             pos = (ev.pos[0] - 8, ev.pos[1] - 8)
 151             try:
 152                 turnip = Turnip(age=0, pos=pos, space=self._space)
 153                 self._turnips.append(turnip)
 154                 self._seeds -= 1
 155                 self._update_toolbar(gamestate)
 156             except TurnipInvalidPosition:
 157                 # TODO: Add error sound or something
 158                 pass
 159
 160     def _update_light_angle(self, pos, gamestate):
 161         # Update the angle of the given light
 162         pos = pymunk.pygame_util.to_pygame(pos, pygame.display.get_surface())
 163         distance = pos - self._dragging.position
 164         angle = math.atan2(distance[1], distance[0])
 165         # Set light angle to this position
 166         self._dragging.ray_manager.direction = math.degrees(angle)
 167         # Hackily update gamestate with new angle
 168         for light_cfg in gamestate.station["lights"]:
 169             light_pos = pymunk.Vec2d(light_cfg["position"])
 170             if light_pos.get_dist_sqrd(self._dragging.position) < 5.0:
 171                 light_cfg["direction"] = math.degrees(angle)
 172                 break
 173
 174     def _place_light(self, gamestate, cfg, colours, ev):
 175         cfg = cfg.copy()
 176         cost = cfg.pop("cost")
 177         if self._seeds > cost:
 178             pos = pymunk.pygame_util.from_pygame(
 179                 ev.pos, pygame.display.get_surface())
 180             # Bail if we're too close to an existing light
 181             if self._lights.nearest(pos, max_distance=25):
 182                 return
 183             self._seeds -= cost
 184             self._update_toolbar(gamestate)
 185             cfg["position"] = pos
 186             cfg["colours"] = colours
 187             gamestate.station["lights"].append(cfg)
 188             self._lights.add_light(cfg)
 189
 190     def event(self, ev, gamestate):
 191         if self._game_over_text:
 192             if ev.type in (pgl.KEYDOWN, pgl.MOUSEBUTTONDOWN):
 193                 from .menu import MenuScene
 194                 SceneChangeEvent.post(scene=MenuScene())
 195         if ev.type == pgl.KEYDOWN:
 196             if ev.key in (pgl.K_q, pgl.K_ESCAPE):
 197                 from .menu import MenuScene
 198                 SceneChangeEvent.post(scene=MenuScene())
 199             elif ev.key == pgl.K_e:
 200                 from .night import NightScene
 201                 SceneChangeEvent.post(scene=NightScene())
 202             elif ev.key == pgl.K_SPACE:
 203                 self._paused = not self._paused
 204         elif ev.type == pgl.MOUSEBUTTONDOWN:
 205             if ev.button == 1:
 206                 # Check tools
 207                 for tool in self._tools:
 208                     if tool.pressed(ev):
 209                         self._color = None
 210                         if tool.name == 'reset tool':
 211                             self._unset_cursor()
 212                             self._tool = None
 213                             self._clear_light_toolbar()
 214                         elif tool.name == 'start night':
 215                             from .night import NightScene
 216                             SceneChangeEvent.post(scene=NightScene())
 217                         elif tool.name == 'exit':
 218                             from .menu import MenuScene
 219                             SceneChangeEvent.post(scene=MenuScene())
 220                         else:
 221                             self._tool = tool
 222                             if self._tool.name == 'seed':
 223                                 self._set_cursor(
 224                                     'seed', transform=Alpha(alpha=172))
 225                                 self._clear_light_toolbar()
 226                             elif self._tool.name == 'light':
 227                                 self._unset_cursor()
 228                                 self._draw_light_toolbar(
 229                                     self._tool.light_config, 100)
 230                         return
 231                 # Check light toolbar
 232                 for light_tool in self._light_toolbar:
 233                     if light_tool.pressed(ev):
 234                         self._set_cursor(
 235                             self._tool.light_config["type"],
 236                             transform=Multiply(
 237                                 colour=COLOURS[light_tool.name] + (172,)))
 238                         self._light_color = light_tool.name
 239                         return
 240                 if self._tool.name == "seed":
 241                     self._place_seed(gamestate, ev)
 242                 elif self._tool.name == "light" and self._light_color:
 243                     self._place_light(
 244                         gamestate, self._tool.light_config,
 245                         [self._light_color], ev)
 246                 else:
 247                     # Not tool, so check lights
 248                     self._lights.toggle_nearest(ev.pos, surfpos=True)
 249             elif ev.button == 3:
 250                 light = self._lights.nearest(ev.pos, surfpos=True,
 251                                              max_distance=20.0)
 252                 if light:
 253                     # Start drag to rotate light
 254                     self._dragging = light
 255                 elif self._tool:
 256                     # Unset tool
 257                     self._tool = None
 258                     self._unset_cursor()
 259         elif ev.type == pgl.MOUSEMOTION:
 260             if self._dragging:
 261                 # Calculate angle between current position and mouse pos
 262                 self._update_light_angle(ev.pos, gamestate)
 263         elif ev.type == pgl.MOUSEBUTTONUP:
 264             self._dragging = None
 265
 266     @debug_timer("day.tick")
 267     def tick(self, gamestate):
 268         if not self._paused:
 269             self._lights.tick()
 270
 271     def _update_toolbar(self, gamestate):
 272         text = ("Day: %d: Turnip Stocks: Seeds: %d. Planted: %d. "
 273                 "Harvested: %d. Destroyed: %d" %
 274                 (gamestate.days, self._seeds, len(self._turnips),
 275                  self._harvested, gamestate.eaten))
 276         self._toolbar = self._toolbar_font.render(text, True, (255, 255, 255))