a93febb5b7
* add image and deprecated arrow functions * update locales * map basic.showArrow * map arrow blocks * map & remove arrow images * remove arrow blocks * update locales * remove & patch: rgbw -> rgb button/pin pressed -> button/pin event loudness -> soundLevel * update ts mappings for arrows * add wip ts patch rules * update .blocks files * use Click instead of Down as default in Documentation and tests * patch test.blocks * fix lowercase name tag * update test.blocks * update blocks test files * update blocks test files * format block files * pass blocks file tests * fix ts mapping * fix color.defl value closes https://github.com/microsoft/pxt-calliope/issues/136 * fix ts mappings - add optional spacing at the end of rgbw() - map up to v4.0.19 * add suggested changes * replace innerText by textContent Co-authored-by: JW <gitkraken@juriwolf.de> Co-authored-by: Juri <info@juriwolf.de>
1.5 KiB
1.5 KiB
Forever
Keep running part of a program in the background.
basic.forever(() => {
})
Example: compass
The following example constantly checks the compass heading and updates the screen with the direction.
let degrees = 0
basic.forever(() => {
degrees = input.compassHeading()
if (degrees < 45) {
basic.showString("N")
} else if (degrees < 135) {
basic.showString("E")
} else if (degrees < 225) {
basic.showString("S")
} else if (degrees < 315) {
basic.showString("W")
} else {
basic.showString("N")
}
})
Example: counter
The following example keeps showing the number stored in a global variable.
When you press button A, the number gets bigger.
You can use a program like this to count things with your @boardname@.
let num = 0
basic.forever(() => {
basic.showNumber(num)
})
input.onButtonEvent(Button.A, ButtonEvent.Click, () => {
num = num + 1
})
Competing for the LED screen
If different parts of a program are each trying to show something on the LED screen at the same time, you may get unexpected results. Try this on your @boardname@:
basic.forever(() => {
basic.showNumber(6789)
})
input.onButtonEvent(Button.A, ButtonEvent.Click, () => {
basic.showNumber(2)
})