Box the compass: Difference between revisions
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(→{{header|Nim}}: Solution that matches the task) |
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=={{header|Nim}}== |
=={{header|Nim}}== |
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<lang nim>import |
<lang nim>import math, sequtils, strformat, strutils |
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const |
const |
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headingNames: array[1..32, string] = [ |
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"North", "North by east", "North-northeast", "Northeast by north", |
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" |
"North", "North by east", "North-northeast", "Northeast by north", |
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" |
"Northeast", "Northeast by east", "East-northeast", "East by north", |
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" |
"East", "East by south", "East-southeast", "Southeast by east", |
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" |
"Southeast", "Southeast by south","South-southeast", "South by east", |
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" |
"South", "South by west", "South-southwest", "Southwest by south", |
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" |
"Southwest", "Southwest by west", "West-southwest", "West by south", |
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" |
"West", "West by north", "West-northwest", "Northwest by west", |
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"Northwest", "Northwest by north", "North-northwest", "North by west"] |
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maxNameLength = headingNames.mapIt(it.len).max |
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degreesPerHeading = 360 / 32 |
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func toCompassIndex(degree: float): 1..32 = |
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var degree = (degree + degreesPerHeading / 2).floorMod 360 |
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int(degree / degreesPerHeading) + 1 |
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func toCompassHeading(degree: float): string = headingNames[degree.toCompassIndex] |
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for i in 0..32: |
for i in 0..32: |
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let |
let |
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heading = float(i) * 11.25 + (case i mod 3 |
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of 1: 5.62 |
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of 2: -5.62 |
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else: 0) |
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printlnfmt "{:2} {:18} {:>6.2f}", j + 1, names[j], d</lang> |
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index = heading.toCompassIndex |
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compassHeading = heading.toCompassHeading.alignLeft(maxNameLength) |
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echo fmt"{index:>2} {compassHeading} {heading:6.2f}"</lang> |
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Output: |
Output: |
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<pre> 1 North 0 |
<pre> 1 North 0.00 |
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2 North by east 16.87 |
2 North by east 16.87 |
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3 North-northeast 16.88 |
3 North-northeast 16.88 |
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