def update(self):
"""update - Update internal data for a game tick"""
BaseSprite.update(self)
#this stops the guy completely
#for frictionless physics like in a space game
#you can decrement the velocity or even
#delete these lines for asteroids-like physics
if not self._accelerating:
self.velocity_x = 0
self.velocity_y = 0
#manage the exploding animation
if self.exploding:
#do an explosion image for each tick
self.explodestage += 1
e = self.explodestage
if e < 8:#there are 7 explosion images
e = str(e)
img_name = python_nameconfig.guy_explode_stage + e + ".png"
self.master_image = pygame.image.load(img_name)
self._update_image()
else:#explosion is done
self.visible = False
self.exploding = False
self.kill()
self.master_image = pygame.image.load(python_nameconfig.guy_img)
self._update_image()
def update(self):
"""update - update internal data and position.
Typically called by the game controller each game
tick.
"""
BaseSprite.update(self)
if self.exploding:
#do an explosion image for each tick
self.explode_stage += 1
e = self.explode_stage
if e < 8:
e = str(e)
img_name = python_nameconfig.enemy_explode_stage + e + ".png"
self.master_image = pygame.image.load(img_name)
self._update_image()
return
else:#explosion is done
self.visible = False
self.exploding = False
self.kill()
return
self.targetted = False
#calculate target angle
targx = self.target.x - self.x
targy = self.target.y - self.y
target_angle = ((math.atan2(targy,targx)) * 180)/ math.pi
if target_angle < 0:
target_angle = 360 + target_angle
#translate the orientation to the
# same system as the target angle
fire_angle = 360 - self.orientation
if fire_angle == 360:
fire_angle = 0
fire_angle += 270
if fire_angle >= 360:
fire_angle -= 360
#rotate to face the target
delta = fire_angle - target_angle
if delta > 5:
self._rotating_left = True
self._rotating_right = False
elif delta < -5:
self._rotating_left = False
self._rotating_right = True
else:
self._rotating_left = False
self._rotating_right = False
self.targetted = True
def update(self):
BaseSprite.update(self)
if self.exploding:
# do an explosion image for each tick
self.explode_stage += 1
e = self.explode_stage
if e < 8:
e = str(e)
img_name = python_nameconfig.enemy_explode_stage + e + ".png"
self.master_image = pygame.image.load(img_name)
self._update_image()
return
else: # explosion is done
self.visible = False
self.exploding = False
self.kill()
return
def update(self):
"""update - update internal data and position.
Typically called by the game controller each game
tick.
"""
BaseSprite.update(self)
self.ticks += 1
if not self.exploding and self.ticks > self.max_ticks:
self.kill()
if self.exploding:
self.explodestage += 1
e = self.explodestage
if e < 5:
e = str(e)
self.masterImage = pygame.image.load(python_nameconfig.bullet_explode_stage + e + ".png")
self._update_image()
else:
self.kill()
