def __init__(self):
self.duration = random.randint(2, 8)
if(self.duration < 5):
self.value = 1000
image = 'bug1-small.png'
else:
self.value = 500
image = 'bug2-small.png'
bug_sprite_sheet = pyglet.resource.image(image)
bug_grid = pyglet.image.ImageGrid(bug_sprite_sheet, 1, 6)
animation_period = max(self.duration / 100, 0.05) # seconds
animation = bug_grid.get_animation(animation_period)
super(Bug, self).__init__(animation)
screen_height = director.get_window_size()[1]
rect = self.get_rect()
self.speed = (screen_height + rect.height) / self.duration
self.cshape = OrientableRectShape(
euclid.Vector2(rect.center[0], rect.center[1]),
rect.width / 2, rect.height / 2, 0)
self.is_colliding = False
class Bug(Sprite):
''' Characters to be destroyed. '''
def __init__(self):
self.duration = random.randint(2, 8)
if(self.duration < 5):
self.value = 1000
image = 'bug1-small.png'
else:
self.value = 500
image = 'bug2-small.png'
bug_sprite_sheet = pyglet.resource.image(image)
bug_grid = pyglet.image.ImageGrid(bug_sprite_sheet, 1, 6)
animation_period = max(self.duration / 100, 0.05) # seconds
animation = bug_grid.get_animation(animation_period)
super(Bug, self).__init__(animation)
screen_height = director.get_window_size()[1]
rect = self.get_rect()
self.speed = (screen_height + rect.height) / self.duration
self.cshape = OrientableRectShape(
euclid.Vector2(rect.center[0], rect.center[1]),
rect.width / 2, rect.height / 2, 0)
self.is_colliding = False
def start(self):
''' places the bug to its start position
duration: the time in second for the
bug to go to the bottom of the screen '''
self.spawn()
self.is_colliding = self.respawn_on_collision()
collision_counter = 1 if self.is_colliding else 0
while self.is_colliding:
self.is_colliding = self.respawn_on_collision()
if self.is_colliding:
collision_counter += 1
if collision_counter > 3:
break
self.rotation = -self.duration
rotate = RotateBy(self.duration * 2, 1)
self.do(Repeat(rotate + Reverse(rotate)))
rect = self.get_rect()
self.cshape.center = euclid.Vector2(rect.center[0], rect.center[1])
def spawn(self):
''' pops at a random place on top of the screen '''
rect = self.get_rect()
half_width = rect.width / 2
screen_width, screen_height = director.get_window_size()
spawn_x = random.randint(half_width, screen_width - half_width)
self.position = (spawn_x, screen_height + rect.height / 2)
self.cshape.center.x, self.cshape.center.y = self.position
self.cshape.update_position()
self.cshape.rotate(self.rotation)
def respawn_on_collision(self):
''' if the bug is colliding with another one,
redraw it at another random place on top of screen
returns True when it was colliding
'''
is_colliding = False
for other in GAME_MODEL.active_bug_list:
if BUG_LAYER.collision_manager.they_collide(self, other):
self.spawn()
is_colliding = True
break
return is_colliding
def move_by(self, delta_x, delta_y):
''' moves the bug
delta_x distance in pixels along horizontal axis
delta_y distance in pixels along vertical axis '''
self.position = (self.position[0] + delta_x, self.position[1] + delta_y)
self.cshape.center.x, self.cshape.center.y = self.position
self.cshape.update_position()
self.cshape.rotate(self.rotation)
