def init():
    global BRICKS
    BRICKS = [
        [[0,1,0], [1,1,1], [0,1,0]],
        [[0, 0, 1], [1, 1, 1]],
        [[1, 0, 0], [1, 1, 1]],
        [[1]],
        [[1, 1, 1, 1]],
        [[1, 1], [1, 1]],
        [[0, 1, 1], [1, 1, 0]],
        [[1, 1, 0], [0, 1, 1]],
        [[1, 0, 1], [1, 1, 1]],
        [[1, 1, 1], [0, 1, 0]]
    ]
    global TILE_SIZE
    TILE_SIZE = 48
    global GRID_WIDTH
    GRID_WIDTH = 10
    global GRID_HEIGHT
    GRID_HEIGHT = 18
    global dropgrid
    dropgrid = [[0 for _ in range(GRID_WIDTH)] for _ in range(GRID_HEIGHT)]