class World(EventHandler):
def __init__(self):
super(World, self).__init__()
self._font = pygame.font.Font(None, 48)
self._background_channel = g.sounds['pigeon_background']
self._background_channel.set_volume(0.8)
self._restart()
def set_car_value(self, v):
self._car_value = v
def get_car_value(self):
return self._car_value
car_value = property(get_car_value, set_car_value)
def update_car_value(self, car_value):
print "car value = %s" % car_value
self.car_value = car_value
self._car_value_text = self._font.render("Car Value: %s$" % (self._car_value), 1, g.yellow)
self._car_value_rect = self._car_value_text.get_rect(centerx=g.width*85/100, centery = g.height*9/10)
def _restart(self):
self.update_car_value(g.start_car_value)
self._sprites = []
self._just_simulated = []
self._pcontroller = PigeonController(world=self, keymap=self._keymap)
car = Car(self)
self._crosshair = Crosshair(self)
self.add_sprite(self._crosshair)
if '--showcar' in g.argv:
self.add_sprite(car)
else:
self.add_just_simulated_sprite(car)
print "keys = %s" % len(self._keymap)
def start_background_sound(self):
self._background_channel.play(-1)
def stop_background_sound(self):
self._background_channel.stop()
def on_mouse_down(self):
self._crosshair.shoot()
def add_sprite(self, sprite):
self._sprites.append(sprite)
def add_just_simulated_sprite(self, sprite):
self._just_simulated.append(sprite)
def simulated_pairs(self):
all = self._sprites + self._just_simulated
n = len(all)
for i_src, src in enumerate(all):
for i_dest in xrange(i_src + 1, n):
dest = all[i_dest]
yield src, dest
def simulate(self):
""" core interactions - simulate everything, collide everything, O(n^2) """
removed = []
for i, s in enumerate(self._sprites):
if s.simulate() == 'killme':
removed.append(i)
# Check for collision, kill collided stuff
for src, dest in self.simulated_pairs():
if src._rect.colliderect(dest._rect):
src.onhit(dest) # \
dest.onhit(src) # / this makes it easier to implement - just define onhit where it matters
# NOTE: it will only die in the next loop - not that bad..
# Delete finished projectiles / pigeons
for i in sorted(set(removed), reverse=True):
try:
del self._sprites[i]
except:
print "cannot delete sprite %s, have %s sprites left" % (i, len(self._sprites))
def blit(self, screen):
for s in self._sprites:
if s.visible():
screen.blit(s._sprite, s._rect)
# show car_value
screen.blit(self._car_value_text, self._car_value_rect)
# End game
def car_is_dead_long_live_the_pigeons(self):
splash(pygame.display.get_surface(), 'pigeon_win_splash.png', min_timeout=1.0)
self._restart()
def pigeons_dead_long_live_the_car(self):
splash(pygame.display.get_surface(), 'car_win_splash.png', min_timeout=1.0)
self._restart()
