Tur:Şapka Bloğu

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The general shape of a Hat block.

A Hat Block is a block that starts a script when a specific event occurs. All hat blocks are either Control blocks, Events blocks, My Blocks, or Extension blocks. In the Experimental Viewer, the first word of their name is capitalised.

Hat blocks are useful in Event Based Programming.

Shape

As Hat blocks are designed to start a script, they are shaped so no blocks can go on top of them — this is done by rounding the blocks' top. The bottom of Hat blocks are the same as Stack Blocks.

yeşil bayrak tıklandığında // Bu bir şapka bloğu.
(fare-imleci v) ' e git

Blocks

There are twenty-four Hat blocks in Scratch. Sixteen are used for extensions. One is made with every instance of a custom block.

Note:

Click on a block for more information.

• yeşil bayrak tıklandığında
• [ v] tuşuna basılınca
• bu kuklaya tıklandığında
• [ v] haberini aldığımda
• dekor [ v] olduğunda
• [ v] > () olduğunda
• ikiz olarak başladığımda
• ' i tanımla
• video hareketi > () olduğunda
• ( v) tuşuna basılınca::makeymakey
• ( v) dizisi sırayla basılınca::makeymakey
• ( v) düğmesi basıldığında::microbit
• ( v) olduğunda::microbit
• ( v) eğildiğinde::microbit
• ( v) pini bağlandığında::microbit
• ( v) düğmesine basıldığında
• mesafe < () olduğunda
• parlaklık < () olduğunda
• parça, ( v) renginde görüldüğünde
• mesafe ( v) () olduğunda::wedo
• ( v) eğildiğinde::wedo
• ( v) olduğunda::gdxfor
• kuvvet sensörü ( v)::gdxfor
• ( v) olduğunda::gdxfor

when <> is true :: hat events

The When () Is True block

A wanted hat block is When () Is True.Template:Cite post It was available in the November 2006 beta but was removed in Scratch 1.0. It is available in some Scratch Modifications. This block can be reproduced by doing the following:

when gf clicked
forever
wait until <... :: grey>
broadcast (true v)
wait until <not <... :: grey>>

when I receive [true v]
...

or

when gf clicked
forever
if <... :: grey> then
end

The latter is equivalent to the replacement in Scratch 1.0.

Use

Hat blocks signal for the project to run a script after an event has happened, and therefore allows the code to be run automatically without a user having to click on the script to run the code. As there are 24 Hat blocks, there are 24 different forms of events that can occur to start a script.

An example for when the When I Receive () block can be used as follows:

when I receive [Next Level v]
next costume

Snap! Hat Blocks

In the Scratch Modification Snap!, hat blocks are used in definitions of Custom Blocks (procedures). These hat blocks contain an image of the block on them. The custom block carries out the script attached to the bottom of the hat block.

Custom hat blocks cannot yet be created in Snap!

Cat Blocks

Main article: Cat Block

The cat blocks that replaced the hat blocks in the editor

For April Fools Day 2020, all hat blocks were replaced with 'Cat Blocks', where a cat drawing was put on top of them. Rolling the mouse over near the eyes of the cat block would cause its eyes to blink, and mousing over its ear would cause the ear to move.

There were many requests to bring them back, but it was officially rejected by the Scratch Team.Template:Cite post However, they can still be accessed here.