koperkapel/roaches.py

   1 """ Tools for creating roach actors. """
   2
   3 import random
   4 from pgzero.clock import each_tick
   5 from pgzero.loaders import images
   6 from pygame.constants import BLEND_RGBA_MULT
   7 from .actors.orientatedsurf import OrientatedSurfActor
   8 from .serums import roach_serum_color
   9
  10
  11 class RoachActor(OrientatedSurfActor):
  12     def __init__(self, frames):
  13         self._frames = frames
  14         self._frame = random.randint(0, len(frames) - 1)
  15         self._dt = 0
  16         self._cycle_dt = 0.2
  17         each_tick(self.update)
  18         super().__init__(surf=frames[self._frame], angle=0)
  19
  20     def update(self, dt):
  21         self._dt += dt
  22         while self._dt > self._cycle_dt:
  23             self._dt -= self._cycle_dt
  24             self._frame += 1
  25             self._frame %= len(self._frames)
  26         self.surf = self._frames[self._frame]
  27
  28
  29 class RoachFactory:
  30
  31     def __init__(self, suffix, frames=4):
  32         self.suffix = suffix
  33         self.frames = 4
  34
  35     def assemble_frame(self, i, color, roach_data):
  36         roach = images.load("roach%s/roach_%d" % (self.suffix, i + 1))
  37         eyes = images.load("roach%s/eyes_%d" % (self.suffix, i + 1))
  38         frame = roach.copy()
  39         frame.fill(color, None, BLEND_RGBA_MULT)
  40         frame.blit(eyes, (0, 0))
  41         return frame
  42
  43     def assemble(self, roach_data):
  44         color = roach_serum_color(roach_data)
  45         frames = [
  46             self.assemble_frame(i, color, roach_data)
  47             for i in range(self.frames)]
  48         return RoachActor(frames)
  49
  50
  51 default_roaches = RoachFactory("")
  52 t32_roaches = RoachFactory("_32")
  53 t21_roaches = RoachFactory("_21")
  54 big_roaches = RoachFactory("_big")