Introduction 3 - Glossary of basic Scratch 2.0 blocks: Różnice pomiędzy wersjami

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Moves  the  sprite  to  a  point  with  a  specific  x  coordinate  value  (the  value  of  the  y coordinate remains unchanged) in accordance with the current direction and current pen settings (applied/raised, colour, thickness). The default value can be edited.
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[[Plik:M_3_13.JPG]]
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Changes the sprite’s y coordinate by  a specific value in  accordance  with the  current direction and current pen settings (applied/raised,colour, thickness). The default value can be edited. 
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'''Example:'''
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[[Plik:M_3_14.JPG]]

Wersja z 18:48, 6 lip 2015

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Scenarios dedicated to primary school learners, 4th - 6th grade (basic level) These materials have been developed by Ośrodek Edukacji Informatycznej i Zastosowań Komputerów (Centre for Information Technology Education and Application of Computers) in Warsaw as part of the “Mistrzowie Kodowania” (“Masters of Coding”). Programme funded by Samsung Electronics Polska, licensed under CC BY-SA “Attribution – Share Alike 3.0”.


Glossary of basic Scratch 2.0 blocks

Scratch is a scripting, visual programming language. We use it to build scripts by putting together blocks representing commands, control instructions, expressions, etc. The version 2.0 set of blocks is divided into 10 categories (there were 8 categories in version 1.4), blocks in each category are distinguished by a different colour. This glossary is not a description of all the blocks, only the most important ones as well as those used in scenarios of classes designed for students in grades four to six of primary schools developed as part of the “Masters of Coding” project. Version 2.0 introduces a very important More blocks category which allows users to define their own blocks. It is not described in this document, because the first eight scenarios do not expect users to create their own blocks. This category will be described in future scenarios. Each sprite and stage may have their own scripts. The set of blocks from which you can build scripts for a stage is slightly different than that used for sprites, for example the category Motion for the stage is empty, because the stage cannot be moved or rotated. First, we will discuss various types of blocks for sprites, and then basic information about blocks available for the stage will be provided.


M 3 1.JPG

The category Motion groups sprite movement blocks, used for their movement, rotation and reading current data related to a sprite’s location. These are very often used basic blocks. Below is a description of all the blocks in this category.

M 3 2.JPG

Moves the sprite by a certain distance in accordance with the current direction and current pen settings (applied/raised, colour, thickness). The default value can be edited. If we want to move the sprite back, we must enter a negative value.

Example:

M 3 3.JPG

Rotates the sprite right (clockwise) by a specified degree. The default value can be edited.

Example:

M 3 4.JPG

M 3 5.JPG

Rotates the sprite left (counterclockwise) by a specified degree. The default value can be edited. This is equivalent to a right (clockwise) rotation with a negative value.

Example:

M 3 6.JPG

Sets the sprite in a particular direction. We can choose one of four directions from the list (90 degrees – right, -90 degrees – left, 0 degrees – up, 180 degrees – down) or enter manually a specific angle in degrees.

Example:

M 3 7.JPG

Sets the sprite in the direction of the mouse cursor or another sprite. The object (a specific sprite or mouse cursor) must be selected from the drop-down list.

Example:

M 3 8.JPG

Moves the sprite to a point with specific coordinates (x, y) in accordance with the current direction and current pen settings (applied/raised, colour, thickness).

Example:

M 3 9.JPG

Moves the sprite to a mouse cursor position or another sprite in accordance with the current direction and current pen settings (applied/raised, colour, thickness). The object (a specific sprite or mouse cursor) must be selected from the drop-down list.

Example:

M 3 10.JPG

Similar to the go to x y command, but executed for a specified period of time.

Example:

M 3 11.JPG

Changes the sprite’s x coordinate by a specific value in accordance with the current direction and current pen settings (applied/raised,colour, thickness). The default value can be edited.

Example:

M 3 12.JPG

Moves the sprite to a point with a specific x coordinate value (the value of the y coordinate remains unchanged) in accordance with the current direction and current pen settings (applied/raised, colour, thickness). The default value can be edited.

Example:

M 3 13.JPG

Changes the sprite’s y coordinate by a specific value in accordance with the current direction and current pen settings (applied/raised,colour, thickness). The default value can be edited.

Example:

M 3 14.JPG