Code.org - 1 heure de code pour l'initiation à la programmation. Scratch (langage) Un article de Wikipédia, l'encyclopédie libre.
Pour les articles homonymes, voir Scratch. Le ton de cet article ou de cette section est trop promotionnel ou publicitaire. (indiquez la date de pose grâce au paramètre date). Scratch - Site Officiel. Scratch - Téléchargement éditeur hors ligne. You can install the Scratch 2.0 editor to work on projects without an internet connection.
This version will work on Mac, Windows, and some versions of Linux (32 bit). Note for Mac Users: the latest version of Scratch 2.0 Offline requires Adobe Air 20. To upgrade to Adobe Air 20 manually, go here. Scratch Offline Editor Next download and install the Scratch 2.0 Offline Editor Mac OS X - Download Mac OS 10.5 & Older - Download. Scratch Wiki (US) Scratch - Wiki (Fr) Scratch - Forums (US) Join ScratchSign inForgot password?
Sign in Scratch works best on newer browsers. We suggest you upgrade to a supported browser, download the offline editor, or read about common workarounds. x. Scratch - Forum (FR) ScratchJr. Manuel Scratch par l'Inria [Pdf] Guide pour le logiciel Scratch — Technologie au collège.
Apprendre à utiliser Scratch. Christophe Béasse Loading... Working... ► Play all. Sprite - Scratch Wiki. An image of a sprite appearing on both the stage and the sprite list.
Sprites, either user-created, uploaded, or found in the sprites library, are the objects that perform actions in a project. While the Stage can also be programmed in a project, most projects have at least one sprite as well because only sprites can move. Vector Graphics - Scratch Wiki. "Vector" redirects here.
For the article on vectors, see Using Vectors. Vector graphics are graphics stored and drawn with instructions rather than grids of pixels. This not only results in very high and theoretically infinite resolution images, but it also reduces the file size dramatically. They are commonly stored in the SVG file format which resembles XML. You can view SVG files in your web browser, and SVGs are used in Adobe Flash. Those graphics are commonly miscalled simple graphics  due to the lack of effects which are only able to be used in regular bitmap images (blur, shadows...) and the inability of taking photos in vector format.
Advantages of Vector Graphics The vector graphics make drawings look much nicer but tend to be more difficult to draw. Scratch - Bouncing off a Sprite. Bouncing Balls and Gravity on Scratch. Ball Physics on Scratch. Bouncing Ball Example Project on Scratch. L'animation procédurale. Introduction Le but est, au moyen d'un exemple simple, le rebond d'une balle, nous semblant aujourd'hui évident, de comprendre en partie le déroulement mathématique, physique ou algorithmique à la base de l'animation procédurale.
“En synthèse d'image numérique, l'animation procédurale est une animation d'objets virtuels par génération en temps réel de mouvements, selon un ensemble de règles procédurales. L'animateur 3D spécifie les règles (par exemple des lois du monde physique décrites par des relations mathématiques), et les conditions initiales avant de lancer la simulation.” Cf. Wikipedia. Using Vectors - Scratch Wiki. "Vector" redirects here.
For a type of graphic, see Vector Graphics. Vectors are ordered sets of numbers, used in algebra to represent many different things. Most of the time, they are used to represent various physical quantities in physics simulations or games. This article will explain how to use vectors with Scratch to produce interesting effects. Physics (disambiguation) - Scratch Wiki.
Physics is a science involving the study of matter and its motion.
It is used in Scratch to simulate more realistic and fluid motion of sprites. On the Scratch Wiki, there are nine different tutorials for implementing physics into Scratch projects: Gravity-related Simulating Gravity — a page on how to create gravity multiple ways Object Attraction — a page about object attraction Object Repulsion — a page about object repulsion Jumping — a how-to page about jumping. Velocity - Scratch Wiki. Velocity (not to be confused with gravity) is defined as speed in a given direction, and can therefore be negative, unlike speed alone (which is directionless and always positive).
It is often used in projects for physics effects. Using velocity is a far smoother and aesthetically pleasing method than traditional scrolling. Finding Direction With Velocity - Scratch Wiki. While programming, it is sometimes necessary to find the direction a sprite should point given two velocities (x and y).
This article presents the script that will provide the correct direction as well as an explanation of how it works. The Script. Simulating Gravity - Scratch Wiki. Simulating Gravity, or at least the effect of gravity in Scratch can be difficult, but due to trigonometric blocks in Scratch, it is possible. Creating Gravity Using Trigonometry This section is designed to teach you how to simulate gravity's pull on an object around a center-point. This is similar to how the gravity of a star affects the motion of a planet. The script below is based on a simple trigonometric identity which states that sin2x + cos2y = 1. Below are the scripts you will need to put into the object that you want to rotate: If you want the person playing the game to control the rotation you can use this script: For the "Planet" or other object that is being rotated about you will want to use this script:
How to Connect to the Physical World - Scratch Wiki. You can connect your Scratch projects to the physical world using several different kinds of devices. Each of these work with Scratch 1.4. Currently MaKey MaKey works with Scratch 2.0, with support planned for the other devices. MaKey MaKey MaKey MaKey allows people to turn everyday objects into keys and use them with their computer. MaKey MaKey works by opening and closing circuits, using your body and other objects as conductors. The default keys are the arrow keys, the space bar, and left click. Livres Programmation - Enfants - Adolescents. Scratch pour les kids : Dès 8 ans de The LEAD Project – 5 mars 2015. Cahier d'activités Scratch pour les kids : Dès 8 ans de Frédéric Pain. Scratch Class: Bitmap or Vector? on Scratch. Algorithmique au cycle 3. Les programmes du cycle 3 évoquent en Sciences et technologie et en Mathématiques (Espace et géométrie) l’initiation à la programmation.
Imagine - programme - partage. Apprendre à programmer avec Scratch : Site collaboratif, pédagogique et autoformation. Scratch (programming language) Scratch is a free desktop and online multimedia authoring tool that can be used by students, scholars, teachers, and parents to easily create games and provide a stepping stone to the more advanced world of computer programming or even be used for a range of educational and entertainment constructivist purposes from math and science projects, including simulations and visualizations of experiments, recording lectures with animated presentations, to social sciences animated stories, and interactive art and music.
Viewing the existing projects available on the Scratch website, or modifying and testing any modification without saving it requires no online registration. Scratch. En septembre 2013 il a plus de 3 millions de projets fait et partagé par des enfants de toutes nationalités et disponible sur le site officiel. Google Developers. Blockly Games. Programmation créative en scratch — Pixees. Ressource À la une de la page d'accueil .
Initier les élèves à la pensée informatique et à la programmation avec Scratch. Programmation Scratch - Ressources pour l'école. Starting from scratch tutor fr mcc v0. How to make a pong game. Pong WorkshopWorksheet. Scratch Tutorial: Paddle and Brick Game. Home of Scratch. Scratch is a programming language which allows you to create amongst other things games. You can create characters that dance, sing, and interact with one another. Scratch allows you to create images that whirl, spin, and animate in response to movements of the mouse.
The name Scratch comes from the scratching technique used by hip-hop disc jockeys, who spin vinyl records back and forth with their hands to mix music clips together in creative ways. At the core of Scratch is a graphical programming language that lets you control the actions and interactions among media on their computers today. Coding in Scratch is much easier than in traditional programming languages: to create a script or program, you simply snap together graphical blocks, much like LEGO bricks or puzzle pieces. Snap! (Build Your Own Blocks) 4.0.
Pharo visual harmony. Pocket Code: Learn programming.