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adding control blocks

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This commit is contained in:
Peli de Halleux 2016-03-25 21:13:09 -07:00
parent d14f977b85
commit c25049ee5f
3 changed files with 9 additions and 6 deletions
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8
docs/reference/control/in-background.md
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@ -2,7 +2,7 @@
Run code in the background as a separate process or thread; for more information on this advanced construct, see [the micro:bit - a reactive system](/microbit/device/reactive). Run code in the background as a separate process or thread; for more information on this advanced construct, see [the micro:bit - a reactive system](/microbit/device/reactive).
``` ```sig
control.inBackground(() => { control.inBackground(() => {
}) })
``` ```
@ -11,7 +11,7 @@ control.inBackground(() => {
The example below shows how a background process can be used to display the current value of the global variable `num`, while code (like the `on button pressed` handler) can change the value of the variable. The example below shows how a background process can be used to display the current value of the global variable `num`, while code (like the `on button pressed` handler) can change the value of the variable.
``` ```blocks
let num = 0 let num = 0
control.inBackground(() => { control.inBackground(() => {
while (true) { while (true) {
@ -26,7 +26,7 @@ input.onButtonPressed("A", () => {
The code below using the `forever` loop is equivalent to the code above The code below using the `forever` loop is equivalent to the code above
``` ```blocks
let num = 0 let num = 0
basic.forever(() => { basic.forever(() => {
basic.showNumber(num, 150) basic.showNumber(num, 150)
@ -40,7 +40,7 @@ input.onButtonPressed("A", () => {
If you have multiple processes that each show something on the LED screen, you may get unexpected results. Try, for example: If you have multiple processes that each show something on the LED screen, you may get unexpected results. Try, for example:
``` ```blocks
basic.forever(() => { basic.forever(() => {
basic.showNumber(6789, 150) basic.showNumber(6789, 150)
}) })

5
libs/microbit/control.ts
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@ -1,13 +1,16 @@
//% weight=1 color="#333333"
namespace control { namespace control {
/** /**
* Schedules code that run in the background. * Schedules code that run in the background.
//% help=control/in-background shim=micro_bit::runInBackground
*/ */
//% help=control/in-background shim=micro_bit::runInBackground
//% blockId="control_in_background" block="run in background"
export function inBackground(body: Action): void { } export function inBackground(body: Action): void { }
/** /**
* Resets the BBC micro:bit. * Resets the BBC micro:bit.
*/ */
//% weight=1 shim=uBit.reset async help=control/reset //% weight=1 shim=uBit.reset async help=control/reset
//% blockId="control_reset" block="reset"
export function reset() : void { } export function reset() : void { }
} }

2
libs/microbit/serial.ts
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@ -1,4 +1,4 @@
//% weight=1 //% weight=2
namespace serial { namespace serial {
/** /**
* Prints a line of text to the serial * Prints a line of text to the serial