• 点击 ，将两个 Set x Speed 指令拖动到事件内部。
  • 将第一个指令前面的名称更改为 top_block。
  • 将第二个指令前面的名称更改为 bot_block。
  • 将 .set_x_speed() 指令中的数字都更改为 -2.

现在区块将以相同的速度向左移动。

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stage.set_background("city") sprite = codesters.Sprite("bike") 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(): # add any other actions... top_height = random.randint(50, 300) # sprite = codesters.Rectangle(x, y, width, height, "color") top_block = codesters.Rectangle(0, 0, 100, top_height, "blue") top_block.set_gravity_off() top_block.set_top(250) bot_height = 350 - top_height # sprite = codesters.Rectangle(x, y, width, height, "color") bot_block = codesters.Rectangle(0, 0, 100, bot_height, "blue") bot_block.set_gravity_off() bot_block.set_bottom(-250) stage.event_interval(interval, 2)
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