class Obstacle(pygame.sprite.Sprite):
""" Represents a mobile enemy that kills the player on touch """
def __init__(self, location, vertical, spd, image, *groups, preloaded_ani):
"""
Default constructor
Keyword Arguments:
- location: A 2-tuple (x,y) representing the item location
- vertical: Boolean representing if the item moves vertically
- spd: The movement speed
- image: A surface representing the image of the item
- *groups: A collection of sprite groups to add the item to
Returns:
- Nothing
"""
super(Obstacle, self).__init__(*groups)
self.ani = SpritesheetAnimation(0.5, preloaded_ani)
self.image = self.ani.next(0)
self.rect = self.image.get_rect()
self.rect.x, self.rect.y = location
self.speed = spd
"""
if vertical:
self.xspeed = 0
self.yspeed = spd
else:
self.yspeed = 0
self.xspeed = spd"""
self.direction = 1
self.vertical = vertical
def update(self, dt, game):
"""
Update method, moves and updates the obstacle status
Keyword Arguments:
- dt: The time slice (clock.tick())
- game: The game instance.
"""
last = self.rect.copy()
if not game.glitches["timeLapse"] or game.player.x_speed != 0:
# Moves the obstacle
if self.vertical:
self.rect.y += self.direction * self.speed * dt
else:
self.rect.x += self.direction * self.speed * dt
self.image = self.ani.rand_next(dt)
# Reverses the obstacle when a "ObsReverse" trigger is touched
# v-----------------------------------------------------------------v
for cell in game.tilemap.layers['Triggers'].collide(self.rect,
'ObsReverse'):
if self.vertical:
if last.bottom <= cell.top and\
self.rect.bottom > cell.top:
self.rect.bottom = cell.top
elif last.top >= cell.bottom and\
self.rect.top < cell.bottom:
self.rect.top = cell.bottom
else:
if last.left >= cell.right and\
self.rect.left < cell.right:
self.rect.left = cell.right
elif last.right <= cell.left and\
self.rect.right > cell.left:
self.rect.right = cell.left
self.direction *= -1