Numerous requested changes. Still missing heads/tails.
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# Getting started
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# Getting started
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## ~avatar
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Are you ready to build cool BBC micro:bit programs?
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Are you ready to build cool BBC micro:bit programs?
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Here are some challenges for you. Unscramble the blocks in the editor
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Here are some challenges for you. Unscramble the blocks in the editor
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to make real programs that work!
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to make real programs that work!
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## ~
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### Happy face
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### Happy face
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There are three blocks in the editor (the area to the left).
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There are three blocks in the editor (the area to the left).
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@ -33,11 +37,7 @@ When you run this program, you will see a smiley face, then a blank
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screen, then a smiley again -- it never stops! (That's because of the
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screen, then a smiley again -- it never stops! (That's because of the
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``forever`` block.)
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``forever`` block.)
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To move your program from your computer to the BBC micro:bit:
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Now move your program from your computer to the BBC micro:bit!
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* Connect your micro:bit to the computer with the USB cable.
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* Click **Compile**.
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* Drag and drop the new file whose name ends in **.hex** into the **MICROBIT** window.
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* Wait until the yellow light stops blinking!
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### Happy unhappy face
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### Happy unhappy face
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@ -66,11 +66,7 @@ basic.forever(() => {
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});
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});
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```
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```
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To move your program from your computer to the BBC micro:bit:
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Now move your program from your computer to the BBC micro:bit!
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* Connect your micro:bit to the computer with the USB cable.
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* Click **Compile**.
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* Drag and drop the new file whose name ends in **.hex** into the **MICROBIT** window.
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* Wait until the yellow light stops blinking!
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### Your turn!
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### Your turn!
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@ -124,11 +120,7 @@ basic.forever(() => {
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});
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});
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```
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```
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To move your program from your computer to the BBC micro:bit:
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Now move your program from your computer to the BBC micro:bit!
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* Connect your micro:bit to the computer with the USB cable.
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* Click **Compile**.
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* Drag and drop the new file whose name ends in **.hex** into the **MICROBIT** window.
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* Wait until the yellow light stops blinking!
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#### ~hint
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#### ~hint
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@ -138,12 +130,12 @@ You can find the ``show leds`` block in the **Basic** part of the editor.
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### Button A and button B
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### Button A and button B
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This program will show the word **anteater** on the LED
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This program will show the word **ANTEATER** on the LED
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screen when you press button `A`.
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screen when you press button `A`.
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```blocks
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```blocks
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input.onButtonPressed(Button.A, () => {
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input.onButtonPressed(Button.A, () => {
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basic.showString("anteater");
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basic.showString("ANTEATER");
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});
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});
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```
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```
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@ -155,11 +147,11 @@ on the micro:bit screen.
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#### ~
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#### ~
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Now try to unscramble these blocks in the editor so that the micro:bit
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Now try to unscramble these blocks in the editor so that the micro:bit
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shows **banana** when you press button `B`.
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shows **BANANA** when you press button `B`.
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```shuffle
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```shuffle
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input.onButtonPressed(Button.B, () => {
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input.onButtonPressed(Button.B, () => {
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basic.showString("banana");
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basic.showString("BANANA");
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});
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});
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```
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```
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#### ~hint
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#### ~hint
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@ -172,8 +164,8 @@ You can find the letter `B` by clicking the letter `A` on the
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#### Your turn!
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#### Your turn!
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Can you combine these blocks so your program shows your real name
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Can you combine these blocks so your program shows your real name
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instead of **anteater** when you press `A`, but _your secret agent
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instead of **ANTEATER** when you press `A`, but _your secret agent
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name_ instead of **banana** when you press `B`?
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name_ instead of **BANANA** when you press `B`?
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### Shake
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### Shake
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@ -271,3 +263,242 @@ with the BBC micro:bit! What about some of these?
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These are all things you can make with the BBC micro:bit by itself.
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These are all things you can make with the BBC micro:bit by itself.
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Just think what you can do if you connect the micro:bit's pins to
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Just think what you can do if you connect the micro:bit's pins to
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extra parts like microphones and other **sensors**!
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extra parts like microphones and other **sensors**!
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## Let's play Rock Paper Scissors!
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### ~avatar avatar
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```sim
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input.onGesture(Gesture.Shake, () => {
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let img = Math.random(3)
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if (img == 0) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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} else if (img == 1) {
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basic.showLeds(`
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. . . . .
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. # # # .
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. # # # .
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. # # # .
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. . . . .
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`)
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} else {
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basic.showLeds(`
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# # . . #
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# # . # .
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. . # . .
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# # . # .
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# # . . #
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`)
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}
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})
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```
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Build a Rock Paper Scissors game with the BBC micro:bit!
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You can play the game with a friend who has it on a micro:bit.
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You can also play it with friends who are just using their hands.
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## [START PROJECT](/#follow:/projects/rock-paper-scissors)
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### ~
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## Materials needed
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* Your BBC micro:bit -- that's it!
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## Step 1: Getting started
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We want the micro:bit to choose rock, paper, or scissors when you
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shake it. Try creating an ``on shake`` block so when you shake the
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micro:bit, it will run part of a program.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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})
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```
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Next, when you shake the micro:bit, it should pick a random number from `0` to `2`
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and store it in the variable `weapon`. (This variable is named `weapon` because
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rock, paper, and scissors are the weapons you use to battle your friends!)
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Add a ``set`` block with a variable. Then add a ``pick random`` block,
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and store the random number in the variable,
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like this:
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let weapon = Math.random(3)
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})
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```
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### ~hint
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No one can predict random numbers. That's what makes them great for Rock Paper Scissors!
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### ~
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Each possible number these blocks can make (`0`, `1`, or `2`) means a different picture.
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We will show the right picture for that number on the LED screen.
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## Step 2: Picking paper
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Put an ``if`` block after the ``let`` block that checks whether
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`weapon` is `0`. Make sure the ``if`` block has an ``else if`` part
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and an ``else`` part.
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Next, add a ``show leds`` block that shows a
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picture of a piece of paper:
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let weapon = Math.random(3)
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if (weapon == 0) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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} else if (false) {
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} else {
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}
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})
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```
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## Step 3: A random rock
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Now we are going to add a new picture for the micro:bit to show
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when another random number comes up.
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Make the ``else if`` part check if the variable `weapon` is `1`.
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Then add a ``show leds`` block with a picture of a rock.
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let weapon = Math.random(3)
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if (weapon == 0) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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} else if (weapon == 1) {
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basic.showLeds(`
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. . . . .
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. # # # .
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. # # # .
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. # # # .
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. . . . .
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`)
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} else {
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}
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})
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```
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## Step 4: Suddenly scissors
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Add a ``show leds`` block with a picture of scissors to the ``else`` part:
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```blocks
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input.onGesture(Gesture.Shake, () => {
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let weapon = Math.random(3)
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if (weapon == 0) {
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basic.showLeds(`
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# # # # #
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# . . . #
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# . . . #
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# . . . #
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# # # # #
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`)
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} else if (weapon == 1) {
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basic.showLeds(`
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. . . . .
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. # # # .
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. # # # .
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. # # # .
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. . . . .
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`)
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} else {
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basic.showLeds(`
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# # . . #
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# # . # .
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. . # . .
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# # . # .
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# # . . #
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`)
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}
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})
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```
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### ~hint
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You don't need to check if `weapon` is `2` because `2` is the only number left out of `0`, `1`, and `2`.
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That's why you can use an ``else`` instead of an ``else if``.
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### ~
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Your game is ready! Have fun!
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## Step 5: Are you the greatest?
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Here is a way you can make your Rock Paper Scissors game better.
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When button ``A`` is pressed,
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the micro:bit will add `1` to your score.
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Open the ``Game`` drawer, and then add the block ``change score by 1`` to your program,
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like this:
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```blocks
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input.onButtonPressed(Button.A, () => {
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game.addScore(1)
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})
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```
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## Step 6: Prove you're the greatest!
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After your micro:bit can add `1` to the score, show how many wins you have.
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```blocks
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input.onButtonPressed(Button.A, () => {
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game.addScore(1)
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basic.showString("WINS:")
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basic.showNumber(game.score())
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})
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```
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## Step 7: Staying honest
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Success! Your micro:bit can track wins!
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But what about losses?
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Use the ``Game`` drawer to subtract `1` from your score when you press button `B`.
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Here are all the blocks you will need:
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```shuffle
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input.onButtonPressed(Button.B, () => {
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game.addScore(-1)
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basic.showString("LOSSES:")
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basic.showNumber(game.score())
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})
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```
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## Your turn!
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How else can you make your game better?
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Ever hear of [Rock Paper Scissors Spock Lizard](http://www.samkass.com/theories/RPSSL.html)?
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Loading…
Reference in New Issue
Block a user