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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Box-the-compass/Nim/box-the-compass.nim Normal file
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import math, sequtils, strformat, strutils
const
headingNames: array[1..32, string] = [
"North", "North by east", "North-northeast", "Northeast by north",
"Northeast", "Northeast by east", "East-northeast", "East by north",
"East", "East by south", "East-southeast", "Southeast by east",
"Southeast", "Southeast by south","South-southeast", "South by east",
"South", "South by west", "South-southwest", "Southwest by south",
"Southwest", "Southwest by west", "West-southwest", "West by south",
"West", "West by north", "West-northwest", "Northwest by west",
"Northwest", "Northwest by north", "North-northwest", "North by west"]
maxNameLength = headingNames.mapIt(it.len).max
degreesPerHeading = 360 / 32
func toCompassIndex(degree: float): 1..32 =
var degree = (degree + degreesPerHeading / 2).floorMod 360
int(degree / degreesPerHeading) + 1
func toCompassHeading(degree: float): string = headingNames[degree.toCompassIndex]
for i in 0..32:
let
heading = float(i) * 11.25 + (case i mod 3
of 1: 5.62
of 2: -5.62
else: 0)
index = heading.toCompassIndex
compassHeading = heading.toCompassHeading.alignLeft(maxNameLength)
echo fmt"{index:>2} {compassHeading} {heading:6.2f}"