STEP 20: Now, let's set make the rocks move toward the spaceship so the user can dodge them!
- Go to and drag two Set x Speed commands inside the event.
- Change the name in front of the first command to top_rock.
- Change the name in front of the second command to bot_rock.
- Change the number in both .set_x_speed() commands to -2.
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stage.set_background("space")
sprite = codesters.Sprite("spaceship")
sprite.set_size(0.5)
sprite.go_to(-200, 0)
stage.set_gravity(10)
stage.disable_all_walls()
def space_bar():
sprite.jump(5)
# add other actions...
stage.event_key("space", space_bar)
def interval():
top_height = random.randint(50, 300)
# sprite = codesters.Sprite("image", x, y)
top_rock = codesters.Sprite("asteroid", 0, 0)
top_rock.set_height(top_height)
top_rock.set_gravity_off()
top_rock.set_y_speed(0)
top_rock.set_top(250)
bot_height = 350 - top_height
bot_rock = codesters.Sprite("asteroid", 0, 0)
bot_rock.set_height(bot_height)
bot_rock.set_gravity_off()
bot_rock.set_y_speed(0)
bot_rock.set_bottom(-250)
# add any other actions...
stage.event_interval(interval, 2)
