Add roach_at helper.

[koperkapel.git] / koperkapel / vehicles / base.py

diff --git a/koperkapel/vehicles/base.py b/koperkapel/vehicles/base.py
index fb4640dd73be2a47e217bd0c1f66ac27565188ec..c2a24f64ecbfb6cb5d9f27cc03ae11da0a3cf141 100644 (file)
--- a/koperkapel/vehicles/base.py
+++ b/koperkapel/vehicles/base.py
@@ -1,6 +1,10 @@
 """ Base class for vehicles.  """
 
+from itertools import chain, islice, repeat
+from pygame.constants import BLEND_RGBA_MULT
 from pgzero.actor import Actor
+from pgzero.loaders import images
+from ..actors.orientatedsurf import OrientatedSurfActor
 
 
 class Vehicle:
@@ -8,6 +12,7 @@ class Vehicle:
 
     vehicle_type = None
     approximate_radius = 200
+    selected_seat_overlay_color = (255, 0, 0, 255)
 
     def __init__(self):
         self.seats = self.init_seats()
@@ -18,8 +23,36 @@ class Vehicle:
     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]
+
     _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)()
@@ -54,7 +87,29 @@ class Seat:
         self.vehicle_pos = (pos[0] * vrad, pos[1] * vrad)
 
     def actor(self):
-        return Actor("vehicles/%s/seat" % (self.vehicle.vehicle_type,))
+        seat = images.load(
+            "vehicles/%s/seat" % (self.vehicle.vehicle_type,))
+        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
 
 
 Vehicle.register_all()