fetch pxt-microbit v2.2.30 (#102)

* undo buttonEvent

* fetch microbit v2.2.30

Co-authored-by: Amerlander <gitkraken@juriwolf.de>

docs/projects/love-meter.md

@@ -3,7 +3,6 @@
 ## Introduction @unplugged
 
 Make a love meter, how sweet! The @boardname@ is feeling the love, then sometimes not so much!
-Tell everyone who you are. Show you name on the LEDs.
 
 ![Love meter banner message](/calliope/tutorials/05_love_meter_animation.gif)
 

docs/projects/snap-the-dot.md

@@ -8,13 +8,19 @@ Snap the dot is a game of skill where the player has to press **A** exactly when
 
 This tutorial shows how to use the game engine.
 
-## Create a sprite @fullscreen
+## Make a sprite variable @fullscreen
 
-Drag a ``||game:create sprite||`` block onto the workspace. A sprite is a single pixel that can move on the screen. It has an ``x`` and ``y`` position along with a direction of motion.
+Create a new variable called `sprite`. Drag a ``||variables:set sprite to||`` into the ``||basic:on start||`` on the workspace. 
 
 ```blocks
-let sprite: game.LedSprite = null
-sprite = game.createSprite(2, 2)
+let sprite = 0
+```
+## Create a sprite @fullscreen
+
+Pull out a ``||game:create sprite||`` block and put it in ``||variables:set sprite to||`` replacing the `0`. A sprite is a single pixel that can move on the screen. It has an ``x`` and ``y`` position along with a direction of motion.
+
+```blocks
+let sprite = game.createSprite(2, 2)
 ```
 
 ## Move the dot @fullscreen
@@ -22,8 +28,7 @@ sprite = game.createSprite(2, 2)
 The sprite starts in the center facing right. Put a ``||game:move||`` block into the ``||basic:forever||`` to make it move. Notice how it moves to the right but does not bounce back.
 
 ```blocks
-let sprite: game.LedSprite = null
-sprite = game.createSprite(2, 2)
+let sprite = game.createSprite(2, 2)
 basic.forever(function () {
     sprite.move(1)
 })
@@ -34,8 +39,7 @@ basic.forever(function () {
 Grab a ``||game:if on edge, bounce||`` block to make the sprite bounce on the side of the screen. Also, add a ``||basic:pause||`` block to slow down the sprite.
 
 ```blocks
-let sprite: game.LedSprite = null
-sprite = game.createSprite(2, 2)
+let sprite = game.createSprite(2, 2)
 basic.forever(function () {
     sprite.move(1)
     sprite.ifOnEdgeBounce()
@@ -54,13 +58,12 @@ When **A** is pressed, we test if the sprite is in the center or not.
 Use a ``||input:on button pressed||`` block to handle the **A** button. Put in a ``||logic:if||`` block and test if ``||game:x||`` is equal to `2`.
 
 ```blocks
-let sprite: game.LedSprite = null
+let sprite = game.createSprite(2, 2)
 input.onButtonPressed(Button.A, function () {
     if (sprite.get(LedSpriteProperty.X) == 2) {
     } else {
     }
 })
-sprite = game.createSprite(2, 2)
 basic.forever(function () {
     sprite.move(1)
     basic.pause(100)
@@ -73,7 +76,7 @@ basic.forever(function () {
 Finally, pull out an ``||game:add score||`` and a ``||game:game over||`` block to handle both success (sprite in the center) and failure (sprite not in the center).
 
 ```blocks
-let sprite: game.LedSprite = null
+let sprite = game.createSprite(2, 2)
 input.onButtonPressed(Button.A, function () {
     if (sprite.get(LedSpriteProperty.X) == 2) {
         game.addScore(1)
@@ -81,7 +84,6 @@ input.onButtonPressed(Button.A, function () {
         game.gameOver()
     }
 })
-sprite = game.createSprite(2, 2)
 basic.forever(function () {
     sprite.move(1)
     basic.pause(100)