def __init__(self, background_filename, cols, rows):
'''Creates a grid, with size set by the background's size.'''
picture, rect = load_png(background_filename)
self.entities = {}
self.col_width = rect.width
self.row_height = rect.height
self.cols = cols
self.rows = rows
self.background = pygame.Surface((self.col_width * cols,
self.row_height * rows))
for x in xrange(self.cols):
for y in xrange(self.rows):
rect.topleft = (x*rect.width, y*rect.height)
self.background.blit(picture, rect)
def __init__(self, filename):
self.image, _ = load_png(filename)
