""" Base class for vehicles. """
+import math
+import random
+from itertools import chain, islice, repeat
+from pygame.constants import BLEND_RGBA_MULT
+from pgzero.loaders import images
+from ..actors.orientatedsurf import OrientatedSurfActor
+from ..actors.animsurf import AnimatedSurfActor
+from ..weapons import default_weapons
+from ..util import safepath
+
class Vehicle:
- """ Vehicle base class.
+ """ Vehicle base class. """
- A vehicle should have the following attributes:
+ vehicle_type = None
+ overlay_frame_no = None
+ approximate_radius = 200
+ weapons_taped_on = True
+ selected_seat_overlay_color = (255, 0, 0, 255)
- * seats -- list of roach seats.
- * background -- actor representing background for management scene
- """
+ def __init__(self):
+ self.seats = self.init_seats()
+ self.game_pos = (0, 0)
- vehicle_types = {}
- approximate_radius = 200
+ def roach_management_overlay(self):
+ return images.load(safepath("vehicles/walking/background"))
+
+ def roach_management_frame(self):
+ if self.overlay_frame_no is None:
+ return None
+ return images.load(safepath("vehicle_big/%s_%d") % (
+ self.vehicle_type, self.overlay_frame_no))
+
+ def init_seats(self):
+ raise NotImplementedError("Vehicles should specify a list of seats")
+
+ def seating(self, world):
+ roach_seating = world.vehicles[self.vehicle_type].seating
+ roach_seating_numbers = enumerate(zip(roach_seating, self.seats))
+ return {
+ roach: seat_pos
+ for seat_pos, (roach, _) in roach_seating_numbers if roach
+ }
+
+ def seat_roach(self, world, roach, seat_pos):
+ vehicle = world.vehicles[self.vehicle_type]
+ seats = len(self.seats)
+ seating = list(vehicle.seating)
+ seating = list(islice(
+ chain(seating, repeat(None, seats)), 0, seats))
+ seating[seat_pos] = roach
+ # line below records new seating on the world proxy
+ vehicle.seating = seating
+
+ def roach_at(self, world, seat_pos):
+ roach_seating = world.vehicles[self.vehicle_type].seating
+ if seat_pos >= len(roach_seating):
+ return None
+ return roach_seating[seat_pos]
+
+ def changed(self):
+ return False # TODO: remove this
+
+ _vehicle_types = {}
+
+ @classmethod
+ def current(cls, world):
+ return cls.by_type(world.vehicles.current)
@classmethod
def by_type(cls, vehicle_type):
- return cls.vehicle_types.get(vehicle_type)()
+ return cls._vehicle_types.get(vehicle_type)()
@classmethod
def register(cls, vehicle_cls):
- cls.vehicle_types[vehicle_cls.__name__.lower()] = vehicle_cls
+ cls._vehicle_types[vehicle_cls.__name__.lower()] = vehicle_cls
+
+ @classmethod
+ def random(cls):
+ return random.choice(list(cls._vehicle_types.keys()))
@classmethod
def register_all(cls):
from .walking import Walking
+ from .quadcopter import Quadcopter
+ from .robot import Robot
+ from .roomba import Roomba
cls.register(Walking)
+ cls.register(Quadcopter)
+ cls.register(Robot)
+ cls.register(Roomba)
+
+ def _avatar_frame(self, i, weapon, suffix="_tiles"):
+ vehicle = images.load(safepath("vehicle%s/%s_%d") % (
+ suffix, self.vehicle_type, i + 1))
+ frame = vehicle.copy()
+ frame.blit(weapon.surf, (0, 0))
+ return frame
+
+ def get_avatar(self, world):
+ weapon = default_weapons.assemble(
+ world.weapons.current, tape=self.weapons_taped_on)
+ frames = [self._avatar_frame(i, weapon) for i in range(4)]
+ return AnimatedSurfActor(frames, anchor=(0, 0))
class Seat:
* pos -- (x, y) position of the seat relative to the centre of the vehicle.
x and y may be numbers from approximately -1.0 to 1.0. They will be
multiplied by the approximate_radius of the vehicle.
+ * roach -- name of the roach occupying the seat, if any.
* allowed -- f(roach) for checking whether a roach may occupy the
- seat
+ seat.
"""
- def __init__(self, pos, allowed=None):
+ def __init__(self, vehicle, pos, roach=None, allowed=None):
+ self.vehicle = vehicle
self.pos = pos
+ self.roach = roach
self.allowed = allowed or (lambda roach: True)
+ vrad = vehicle.approximate_radius
+ self.vehicle_pos = (pos[0] * vrad, pos[1] * vrad)
+
+ def actor(self):
+ seat = images.load(safepath("vehicles/walking/seat"))
+ selected_seat = seat.copy()
+ selected_seat.fill(
+ self.vehicle.selected_seat_overlay_color, None, BLEND_RGBA_MULT)
+ return SeatActor(seat, selected_seat)
+
+
+class SeatActor(OrientatedSurfActor):
+ def __init__(self, seat, selected_seat):
+ self._selected = False
+ self._seat = seat
+ self._selected_seat = selected_seat
+ super().__init__(surf=self._seat, angle=0)
+
+ @property
+ def selected(self):
+ return self._selected
+
+ @selected.setter
+ def selected(self, value):
+ self._selected = value
+ self.surf = self._selected_seat if value else self._seat
+
+
+def circle_of_seats(n_seats, **kw):
+ d_theta = 2 * math.pi / n_seats
+ return [
+ Seat(pos=(math.sin(i * d_theta), math.cos(i * d_theta)), **kw)
+ for i in range(n_seats)]
Vehicle.register_all()
projects / koperkapel.git / blobdiff