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same compass problem as #528 (#532)

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This commit is contained in:
shaoziyang
2017-09-11 19:22:10 +08:00
committed by Peli de Halleux
parent 00ad0631aa
commit 036b191f29
1 changed files with 12 additions and 11 deletions
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23
docs/reference/serial/write-line.md
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@@ -29,18 +29,19 @@ This program checks the
direction to the serial port repeatedly.
```blocks
let degrees = 0
basic.forever(() => {
let heading = input.compassHeading()
if (heading < 45) {
serial.writeLine("N");
} else if (heading < 135) {
serial.writeLine("E");
}
else if (heading < 225) {
serial.writeLine("S");
}
else {
serial.writeLine("W");
degrees = input.compassHeading()
if (degrees < 45) {
basic.showArrow(ArrowNames.North)
} else if (degrees < 135) {
basic.showArrow(ArrowNames.West)
} else if (degrees < 225) {
basic.showArrow(ArrowNames.South)
} else if (degrees < 315) {
basic.showArrow(ArrowNames.East)
} else {
basic.showArrow(ArrowNames.North)
}
})
```