1 """ Base class for vehicles. """
3 from pygame.constants import BLEND_RGBA_MULT
4 from pgzero.actor import Actor
5 from pgzero.loaders import images
6 from ..actors.orientatedsurf import OrientatedSurfActor
10 """ Vehicle base class. """
13 approximate_radius = 200
14 selected_seat_overlay_color = (255, 0, 0, 255)
17 self.seats = self.init_seats()
19 def roach_management_overlay(self):
20 return Actor("vehicles/%s/background" % (self.vehicle_type,))
23 raise NotImplementedError("Vehicles should specify a list of seats")
25 def seating(self, world):
26 roach_seating = world.vehicles[self.vehicle_type].seating
27 roach_seating_numbers = enumerate(zip(roach_seating, self.seats))
30 for seat_pos, (roach, _) in roach_seating_numbers if roach
36 def current(cls, world):
37 return cls.by_type(world.vehicles.current)
40 def by_type(cls, vehicle_type):
41 return cls._vehicle_types.get(vehicle_type)()
44 def register(cls, vehicle_cls):
45 cls._vehicle_types[vehicle_cls.__name__.lower()] = vehicle_cls
48 def register_all(cls):
49 from .walking import Walking
54 """ A space in a vehicle for a roach.
56 * pos -- (x, y) position of the seat relative to the centre of the vehicle.
57 x and y may be numbers from approximately -1.0 to 1.0. They will be
58 multiplied by the approximate_radius of the vehicle.
59 * roach -- name of the roach occupying the seat, if any.
60 * allowed -- f(roach) for checking whether a roach may occupy the
64 def __init__(self, vehicle, pos, roach=None, allowed=None):
65 self.vehicle = vehicle
68 self.allowed = allowed or (lambda roach: True)
69 vrad = vehicle.approximate_radius
70 self.vehicle_pos = (pos[0] * vrad, pos[1] * vrad)
74 "vehicles/%s/seat" % (self.vehicle.vehicle_type,))
75 selected_seat = seat.copy()
77 self.vehicle.selected_seat_overlay_color, None, BLEND_RGBA_MULT)
78 return SeatActor(seat, selected_seat)
81 class SeatActor(OrientatedSurfActor):
82 def __init__(self, seat, selected_seat):
83 self._selected = False
85 self._selected_seat = selected_seat
86 super().__init__(surf=self._seat, angle=0)
93 def selected(self, value):
94 self._selected = value
95 self.surf = self._selected_seat if value else self._seat
98 Vehicle.register_all()