Making Objects Move in Scrollers: различия между версиями

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{{Scripting Tutorials
|Description=Как организовать скроллинг в Scratch
|Field_of_knowledge=Математика
}}
This tutorial explains how to make an '''object move in a [[scroller]]'''.  
This tutorial explains how to make an '''object move in a [[scroller]]'''.  


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The xpos [[variable]] determines how far the [[sprite]] should be offset from its original position if it were scrolling normally. This [[script]] makes it forever slide back and forth. This is similar to a Mario style platformer. Below is the script that is needed:
The xpos [[variable]] determines how far the [[sprite]] should be offset from its original position if it were scrolling normally. This [[script]] makes it forever slide back and forth. This is similar to a Mario style platformer. Below is the script that is needed:


{{note|The values below are just used as an example. Adjust the values as necessary to best fit one's [[project]].}}


<scratchblocks>
<scratchblocks>

Текущая версия на 17:35, 10 ноября 2023

Описание Как организовать скроллинг в Scratch
Область знаний Математика
Область использования (ISTE)
Возрастная категория


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This tutorial explains how to make an object move in a scroller.

How it Works

The xpos variable determines how far the sprite should be offset from its original position if it were scrolling normally. This script makes it forever slide back and forth. This is similar to a Mario style platformer. Below is the script that is needed: 


when green flag clicked
forever
  ...
  go to x: ((scrollX) + (xpos)) y: ((scrollY) + (ypos))
  ...
end

If a large costume is selected, it can be made to hide when it's touching the edge by adding this to the forever loop: 

...
if <<([abs v] of ((scrollX) + (xpos))) > (240)> or <([abs v] of ((scrollY) + (ypos))) > (180)>> then
hide
...
else
show
...
end
...

The following script will change the 'x pos' relative to the entire scrolling. 

when green flag clicked
forever
  repeat (100)
    change [xpos v] by (2.5)
  end
  repeat (100)
    change [xpos v] by (-2.5)
  end
end

See Also

Источник — http://digida.mgpu.ru/index.php?title=Making_Objects_Move_in_Scrollers&oldid=13215