def slide(self, direction=-1, location=None, rect=None, speed=3):
if not location:
location = self.location
if not rect:
rect = self.rect
(column, row) = location
position = rect.center
if direction == -1:
direction = self.sliding
if direction == EAST:
destination = board.findPosition((column+1, row))
if position[COLUMN] >= destination[COLUMN]:
self.sliding = -1
if column+1 == COLUMNS:
self.falling = True
else:
self.location = (column+1, row)
else:
rect.left += speed
elif direction == WEST:
destination = board.findPosition((column-1, row))
if position[COLUMN] <= destination[COLUMN]:
self.sliding = -1
if column-1 == -1:
self.falling = True
else:
self.location = (column-1, row)
else:
rect.left -= speed
elif direction == NORTH:
destination = board.findPosition((column, row-1))
if position[ROW] <= destination[ROW]:
self.sliding = -1
if row-1 == -1:
self.falling = True
else:
self.location = (column, row-1)
else:
rect.top -= speed
elif direction == SOUTH:
destination = board.findPosition((column, row+1))
if position[ROW] >= destination[ROW]:
self.sliding = -1
if row+1 == ROWS:
self.falling = True
else:
self.location = (column, row+1)
else:
rect.top += 3
def fallen(self):
(column, row) = self.location
if column == 0:
self.location = (COLUMNS-1, row)
elif column == COLUMNS-1:
self.location = (0, row)
elif row == 0:
self.location = (column, ROWS-1)
elif row == ROWS-1:
self.location = (column, 0)
self.rect = self.image.get_rect()
self.rect.center = board.findPosition(self.location)
def __init__(self, file="items.png", size=(50,50), location=(0,0),
offset=0):
pygame.sprite.Sprite.__init__(self)
rect = pygame.Rect(offset*size[0], 0, size[0], size[1])
if Item.image is None:
Item.image = util.loadImage(file)
self.image = Item.image.subsurface(rect)
self.imageCopy = self.image
self.location = location
self.offset = offset
self.rect = self.image.get_rect()
self.rect.center = board.findPosition(location)
self.falling = False
self.sliding = -1
self.tick = 0