66 lines
1.3 KiB
TypeScript
66 lines
1.3 KiB
TypeScript
import { IUnit, TFactor, TUnit } from '@/types/units'
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export const units: Record<string, IUnit> = {
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ft: {
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unit: 'ft',
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system: 'imperial',
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multiplier: 1,
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defaultTarget: 'm',
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},
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mi: {
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unit: 'mi',
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system: 'imperial',
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multiplier: 5280,
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defaultTarget: 'km',
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},
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m: {
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unit: 'm',
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system: 'metric',
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multiplier: 1,
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defaultTarget: 'ft',
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},
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km: {
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unit: 'm',
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system: 'metric',
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multiplier: 1000,
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defaultTarget: 'mi',
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},
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}
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const factors: TFactor = {
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metric: {
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imperial: 3.280839895,
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metric: 1,
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},
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imperial: {
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metric: 1 / 3.280839895,
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imperial: 1,
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},
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}
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export const convertDistance = (
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distance: number,
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from: TUnit,
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to: TUnit,
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digits: number | null = 3
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): number => {
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const unitFrom = units[from]
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const unitTo = units[to]
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const convertedDistance =
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(distance * unitFrom.multiplier * factors[unitFrom.system][unitTo.system]) /
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unitTo.multiplier
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if (digits !== null) {
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return parseFloat(convertedDistance.toFixed(digits))
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}
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return convertedDistance
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}
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export const convertStatsDistance = (
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unitFrom: TUnit,
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value: number,
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useImperialUnits: boolean
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): number => {
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const unitTo = useImperialUnits ? units[unitFrom].defaultTarget : unitFrom
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return useImperialUnits ? convertDistance(value, unitFrom, unitTo, 2) : value
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}
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