Monday, July 13, 2009

Beginning Scratch - 1

Scratch comes with a good (and colourful) documentation. So, I would suggest you to spend several minutes skimming some Scratch pdf files available with the package or directly at the Scratch website. In this "Beginning Scratch" thread I basically explored the documents and tried the "tricks" by myself :-D

Each object in Scratch is called a sprite. Thus, basically, our Scratch project consists of a Stage (Stages?) and several Sprites. If we start Scratch for the first time, it opens a default scene: a blank/white stage and a (cat?) sprite. We might do some experiments with this.


Try to compose "a lego block" as shown above by selecting and dragging block components in the approproate category to the "Scripts" tab/window (while the sprite active/selected!):
  • Category [Motions] for [Move] block

  • Category [Sound] for [Play Drum] block

  • Category [Control] for [Forever] and [When] blocks

  • Category [Looks] for [Change] block

More "exploration":
  • Category [Looks] for [Say] or [Think] blocks

  • Category [Looks] for [Change] block for other interesting image effects

  • Tab [Sound] for importing/recording sounds; then use Category [Sound] block [Playsound]


Animation
  • By switching between costumes, you can animate your own sprite

  • To add a costume, click the COSTUMES tab; Then, click IMPORT to choose a second costume

  • Now, click the SCRIPTS tab; Create a script that switches between costumes

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