How to make a timer on scratch

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How to Create a Timer in Scratch, Game Design

Scratch / By / May 15, 2019 / love of christ August 23, 2022terms, game development, TechnoCode, variable

Do you want to know how to create a timer in Scratch to set a time limit for a game? Follow the instructions to create a counter that records every passing second. When a specific time is reached, the timer stops counting and the game ends.

About scripts and your game

The instructions below explain how to add a timer to an existing Scratch project. You may need to adjust the scripts slightly depending on your game.

About the timer variable

The script requires the use of a variable. A variable is a factor that can change. Create a timer variable. It will be used to hold the number of seconds.

Scratch coding blocks used to create a timer

Scratch has several coding blocks that you will use to create the script:

svg+xml;base64,PHN2ZyBoZWlnaHQ9IjMwIiB3aWR0aD0iMTQwIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIvPg== change my variable by 1 change my variable by 1 Increase the variable (timer) by a specified amount.
svg+xml;base64,PHN2ZyBoZWlnaHQ9IjMwIiB3aWR0aD0iMTI3IiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZlcnNpb249IjEuMSIvPg== set-_my-variable-to-_black set-_my-variable-to-_black Reset the variable (timer) to zero when a new game starts.
svg+xml;base64,PHN2ZyBoZWlnaHQ9IjI1IiB3aWR0aD0iNTciIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ variable de minuterie variable de minuterie Display the timer variable to see the counter.
svg+xml;base64,PHN2ZyBoZWlnaHQ9IjUwIiB3aWR0aD0iNzAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ Répète jusqu'à Répète jusqu'à Do an action until something specific happens (the time limit is reached).
svg+xml;base64,PHN2ZyBoZWlnaHQ9IjIwIiB3aWR0aD0iNzUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ equals-50 equals-50 An operator that tests if the first value (elapsed seconds) is equal to the second value (time limit).

About Timer Script

Before creating the variable and creating the script, it is important to understand how the timer script works. Study the script below.

Is the timer equal to 15? Otherwise, wait 1 second then increase the timer by 1 second. Repeat until the timer reaches 15.

svg+xml;base64,PHN2ZyBoZWlnaHQ9IjI1NyIgd2lkdGg9IjM1MCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4= Code used to create a timer in Scratch. Código utilizado para crear un temporizador en Scratch.Code used to create a timer in Scratch.

Game design with a timer video

Scratch for Kids, Create a Timer to Set a Time Limit in a Game, TechnoCode by TechnoKids Scratch for Kids, crea un temporizador para establecer un límite de tiempo en un juego, TechnoCode de TechnoKids

Regardez la vidéo pour comprendre comment un chronomètre peut être utilisé pour définir une limite de temps pour une partie. S’il s’agit d’un projet de codage que vous souhaitez réaliser, TechnoCode dispose d’une unité de codage de conception de jeux. Les instructions expliquent comment créer des scripts pour qu’un joueur touche des cibles pour gagner des points. Les leçons comprennent également une feuille de planification, une liste de contrôle du consultant en jeu, un journal de codage, un quiz à gratter et une feuille de notation.

Comment créer une minuterie dans Scratch

Créer une variable de minuterie

  1. Ouvrez le projet de jeu enregistré dans Scratch.
  2. Sélectionnez le sprite que vous utiliserez pour suivre le temps (ce pourrait être le joueur).
  3. Dans la palette Variables, cliquez sur Créer une variable.
  4. Type timer as the variable name. Click OK.

svg+xml;base64,PHN2ZyBoZWlnaHQ9IjIzMiIgd2lkdGg9IjMwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4= Create a timer variable. Cree una variable de temporizador.Create a timer variable.

  1. Select the timer variable to display it.svg+xml;base64,PHN2ZyBoZWlnaHQ9IjI1IiB3aWR0aD0iNTciIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ timer-variable timer-variable

Build the script using the timer variable

  1. Use your skills to create this script: how do you want the script to start? Note that in the sample script below, it starts with when I get the game. This is a broadcast message that you may have already created. If the broadcast message was not done, you can use the block when Go clicked on Hat. To learn more about broadcasting, read the article, How to broadcast a message in Scratch.

svg+xml;base64,PHN2ZyBoZWlnaHQ9IjI5NSIgd2lkdGg9IjMwMCigeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4= Définissez la limite de temps à l'aide d'un bloc Opérateur. Définissez la limite de temps à l'aide d'un bloc Opérateur.Set the time limit using an Operator block.

Tip for setting operator coding block:

  • Display the Operator palette.
  • Drag __=50 svg+xml;base64,PHN2ZyBoZWlnaHQ9IjIwIiB3aWR0aD0iNzUiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ égal-50 égal-50into the if-then block svg+xml;base64,PHN2ZyBoZWlnaHQ9IjMwIiB3aWR0aD0iNDIiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ si donc Si donc.
  • Change the number of seconds until the time limit . For example, 15.
  • See the Variables palette. Add the timer.svg+xml;base64,PHN2ZyBoZWlnaHQ9IjIwIiB3aWR0aD0iMzIiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgdmVyc2lvbj0iMS4xIi8+ timer timer

try the timer

  1. Play the game. When finished, click Stop.
    • Does the timer increment when a second passes?
    • Does the timer stop when it reaches the time limit?

Set the timer to zero when a new game starts

  1. Play the game again. Does the timer start from zero? No, he doesn’t.
  2. Select the sprite that tracks time.
  3. In the Variables palette, add set my variable to 0 at the start of a script. Click the Variable arrow and select Timer .

svg+xml;base64,PHN2ZyBoZWlnaHQ9IjI0MCIgd2lkdGg9IjMwMCigeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4= Add a coding block to reset the timer. Add a coding block to reset the timer.Add a coding block to reset the timer.

WHERE SHOULD THE ENCODING BLOCK GO? Note where the block of time set to 0 is in the script above. It was placed after Go clicked on the Hat block of an existing script. Look at your scripts. Where should it be placed in your game?

  1. Play the game again. The timer should start at 0.

Programming Lessons – Coding Units

Interested in Scratch lessons? Learn more about TechnoCode published by TechnoKids Inc. TechnoCode is a technology project that includes a teacher’s guide, workbook, and resource files. Use the teaching materials to teach a coding unit to students in grades 6-9.

svg+xml;base64,PHN2ZyBoZWlnaHQ9IjM3MyIgd2lkdGg9IjUwMCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB2ZXJzaW9uPSIxLjEiLz4= TechnoCode course Technocode course


Video How to make a timer on scratch

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