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Merge branch 'master' of https://github.com/Microsoft/pxt-microbit

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This commit is contained in:
Peli de Halleux 2016-06-07 14:21:28 -07:00
commit eea179e07c
3 changed files with 43 additions and 30 deletions
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45
docs/getting-started.md
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@ -234,22 +234,19 @@ Here are the blocks to make your coin flipper. When you press button
on the LED screen.
```blocks
basic.forever(() => {
input.onButtonPressed(Button.B, () => {
if (Math.randomBoolean()) {
basic.showString("H");
} else {
basic.showString("T");
}
});
input.onButtonPressed(Button.B, () => {
if (Math.randomBoolean()) {
basic.showString("H");
} else {
basic.showString("T");
}
});
```
### ~hint
The ``pick random true or false`` block randomly tells the ``if``
block `true` or `false`. If the ``pick`` block
picked `true`, the ``if`` block shows the letter `H`. Otherwise, it
shows the letter `T`.
block `true` or `false`. If the ``pick`` block picked `true`, the
``if`` block shows the letter `H`. Otherwise, it shows the letter `T`.
That's it!
@ -280,20 +277,18 @@ show your score.
When you're done, your coin flipping program should look like this:
```blocks
basic.forever(() => {
input.onButtonPressed(Button.B, () => {
if (Math.randomBoolean()) {
basic.showString("H");
} else {
basic.showString("T");
}
});
input.onButtonPressed(Button.A, () => {
game.addScore(1);
});
input.onButtonPressed(Button.AB, () => {
basic.showNumber(game.score());
});
input.onButtonPressed(Button.B, () => {
if (Math.randomBoolean()) {
basic.showString("H");
} else {
basic.showString("T");
}
});
input.onButtonPressed(Button.A, () => {
game.addScore(1);
});
input.onButtonPressed(Button.AB, () => {
basic.showNumber(game.score());
});
```

21
docs/reference/music/change-tempo.md
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@ -1,10 +1,11 @@
# Change Tempo By
Change the tempo by the specified amount
Makes the [tempo](/reference/music/tempo) (speed of a piece of music)
faster or slower by the amount you say.
## Simulator
Simulation of this function is available in many, but not all browsers.
This function only works on the micro:bit and in some browsers.
```sig
music.changeTempoBy(20)
@ -12,7 +13,21 @@ music.changeTempoBy(20)
### Parameters
* `bpm` : [Number](/reference/types/number) - change the tempo by beats per minute
* a [number](/reference/types/number) that says how much to change the bpm (beats per minute, or number of beats in a minute of the music that the micro:bit is playing).
### Examples
This program makes the music faster by 12 bpm.
```blocks
music.changeTempoBy(12)
```
This program makes the music _slower_ by 12 bpm.
```blocks
music.changeTempoBy(-12)
```
### See also

7
docs/reference/music/set-tempo.md
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@ -1,14 +1,17 @@
# Set Tempo
Sets the tempo to the specified amount
Makes the tempo (speed of a piece of music) as fast or slow as you say.
```sig
music.setTempo(60)
```
## Simulator
This function only works on the micro:bit and in some browsers.
### Parameters
* Returns : [Number](/reference/types/number) - sets the tempo in beats per minute
* a [number](/reference/types/number) that means the bpm you want (beats per minute, or number of beats in a minute of the music that the micro:bit is playing).
### See also