en:instructions:rockpaperscissors

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en:instructions:rockpaperscissors [2018/06/28 09:49] – [Solution] kniwwelinoen:instructions:rockpaperscissors [2019/11/13 09:31] (current) – [Solution] kniwwelino
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 +===== Rock-Paper-Scissors =====
 +A digital version of the Rock-Paper-Scissors version allowing you to play against each other or against the computer.
 +
 +{{:en:rockpaperscissors2.jpg?direct&400|}}
 +
 +To program this example you need to use the buttons, the matrix, variables, logic, and math. 
 +
 +==== Programming ====
 +You can program the game progressively. For each step, add the displayed blocks and put them in the right order. You can then test your program by clicking on {{:en:instructions:play.png?direct&30|}}.
 +
 +=== Step 1: Showing a number when a button is pressed ===
 +  * You will say to Kniwwelino: « //If I press button A then write "1" on the matrix// ». Use the following blocks and add them to ''Kniwwelino loop forever'':
 +
 +{{:en:instructions:wristband03.png?direct|}}\\
 +{{:en:instructions:rockpaper01.png?direct|}}
 +\\
 +=== Step 2: Showing a random number when a button is pressed ===
 +  * You will say to Kniwwelino: « //If I press button A then choose a random number between 1 and 3 and write this number into a variable named ''value''// ». Add the following blocks to your program:
 +
 +{{:en:instructions:rockpaper02.png?direct|}}\\
 +{{:en:instructions:rockpaper03.png?direct|}}
 +
 +  * After Kniwwelino chose a random number between 1 and 3, you will say to Kniwwelino: « //Show the variable ''value'' on the matrix// ». Remove the ''1'' and replace it with ''value'':
 +{{:en:instructions:rockpaper11.png?direct|}}\\
 +{{:en:instructions:rockpaper05.png?direct|}}
 +
 +=== Step 3: Showing different images for the numbers 1, 2, and 3 ===
 +
 +Instead of writing the number in ''value'' to the matrix, you will now say to Kniwwelino: « //If the number in ''value'' is equal to ''1'', then show an image (e.g. a rock). If it is equal to ''2'', then show another image (e.g. a paper). If it is equal to ''3'', then show a third image (e.g. scissors).//».
 +  * Delete the block writing the number 
 +{{:en:instructions:rockpaper12.png?direct|}}
 +
 +  * Replace it with your first condition made of the following blocks. 
 +{{:en:instructions:rockpaper08.png?direct|}}\\
 +{{:en:instructions:rockpaper09.png?direct|}}\\
 +{{:en:instructions:rockpaper05.png?direct|}}\\
 +{{:en:instructions:rockpaper07.png?direct|}}\\
 +{{:en:instructions:rockpaper10.png?direct|}}
 +
 +  * Repeat the previous point for the two other conditions.
 +
 +==== Solution ====
 +
 +[[en:instructions:rockpaper_solution1|]] or open in [[https://code.kniwwelino.lu/?xml=examples/RockPaperScissorsV1.xml|KniwwelinoBlockly]]
 +
 +Print versions available for download in [[en:downloads:start|]].
 +==== Crafting ====
 +
 +