def example4():
"""
This example shows how to embed the animation into a background image.
"""
# we create a surface from a background image
surface = GIFSurface.from_image("./resources/bg.png")
palette = [
38,
92,
66, # wall color, the same with the blackboard's
200,
200,
200, # tree color
244,
25,
220
] # path color
# set global color palette
for i in range(256):
rgb = hls_to_rgb((i / 360.0) % 1, 0.5, 1.0)
palette += [int(round(255 * x)) for x in rgb]
surface.set_palette(palette)
size = (surface.width, surface.height)
# load mask texture
mask = generate_text_mask(size, "UST", "./resources/ubuntu.ttf", 300)
# use the mask to create a maze
# note we have translated and scaled the maze so that it fits the blackboard
maze = Maze(60, 38, mask=mask).scale(3).translate((50, 35)).setlinewidth(3)
anim = Animation(surface)
# currently nothing has happened, we just show the background image for 1 second
anim.pause(100, trans_index=1)
# then we draw a rectangle on top of the blackboard region
anim.paint(48, 32, 361, 231, 0)
anim.pause(100)
# there is no transparent color in the maze generating stage.
anim.run(algo.wilson, maze, speed=50, delay=2, trans_index=None, mcl=2)
anim.pause(300)
cmap = {i: max(i % 256, 3) for i in range(len(maze.cells))}
# in the maze solving stage we color the walls and trees with the transparent
# color index 0, what would happen then? since these cells are transparent we
# can see the underlying maze through them.
cmap.update({0: 0, 1: 0, 2: 2})
anim.run(algo.bfs,
maze,
speed=30,
mcl=8,
delay=5,
cmap=cmap,
trans_index=0)
anim.pause(500)
anim.save("wilson-bfs.gif")
def example2():
"""This example shows how to use a mask image in the maze.
"""
_, surface, anim = create_animation_for_size(width, height, cell_size, lw,
margin)
surface.set_palette([0, 0, 0, 255, 255, 255])
mask = generate_text_mask((surface.width, surface.height), "UNIX",
"./resources/ubuntu.ttf", 280)
maze = (Maze(width, height, mask=mask).scale(cell_size).translate(
(margin, margin)).setlinewidth(lw))
anim.pause(100)
anim.run(algo.kruskal, maze, speed=30, delay=5, mcl=2)
anim.pause(500)
anim.save("kruskal.gif")
def example4():
"""
This example shows how to embed the animation into a background image.
"""
surface = GIFSurface.from_image("./resources/bg.png")
palette = [
38,
92,
66, # wall color, the same with the blackboard's
200,
200,
200, # tree color
244,
25,
220
] # path color
for i in range(256):
rgb = hls_to_rgb((i / 360.0) % 1, 0.5, 1.0)
palette += [int(round(255 * x)) for x in rgb]
surface.set_palette(palette)
size = (surface.width, surface.height)
mask = generate_text_mask(size, "UST", "./resources/ubuntu.ttf", 300)
maze = Maze(60, 38, mask=mask).scale(3).translate((50, 35)).setlinewidth(3)
anim = Animation(surface)
anim.pause(100, trans_index=1)
anim.paint(48, 32, 361, 231, 0) # paint the blackboard region
anim.pause(100)
anim.run(algo.wilson, maze, speed=50, delay=2, trans_index=None, mcl=2)
anim.pause(300)
cmap = {i: max(i % 256, 3) for i in range(len(maze.cells))}
cmap.update({0: 0, 1: 0, 2: 2})
anim.run(algo.bfs,
maze,
speed=30,
mcl=8,
delay=5,
cmap=cmap,
trans_index=0)
anim.pause(500)
anim.save("wilson-bfs.gif")