tabakrolletjie/scenes/day.py

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