Rolf
48 lines
1.6 KiB
TypeScript
48 lines
1.6 KiB
TypeScript
/**
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* Returns the number of handicap strokes a player receives on a given hole.
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* WHS allocation: distribute course_handicap strokes across holes by stroke index.
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*/
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export function strokesReceived(
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courseHandicap: number,
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strokeIndex: number,
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holesCount: number,
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): number {
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if (courseHandicap <= 0) return 0
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const fullStrokes = Math.floor(courseHandicap / holesCount)
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const extraStrokes = courseHandicap % holesCount
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return fullStrokes + (strokeIndex <= extraStrokes ? 1 : 0)
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}
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/**
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* Net score on a hole (gross strokes minus strokes received).
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*/
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export function netStrokes(
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gross: number,
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courseHandicap: number,
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strokeIndex: number,
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holesCount: number,
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): number {
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return gross - strokesReceived(courseHandicap, strokeIndex, holesCount)
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}
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/**
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* Score vs par as a display string: "−2", "E", "+1", "+3"
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*/
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export function formatVsPar(diff: number): string {
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if (diff === 0) return 'E'
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return diff > 0 ? `+${diff}` : `${diff}`
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}
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/**
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* CSS class for a gross score vs par (standard golf scorecard conventions).
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*/
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export function scoreColorClass(vsPar: number | null): string {
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if (vsPar === null) return ''
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if (vsPar <= -2) return 'bg-yellow-300 text-yellow-900 rounded-full' // Eagle or better
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if (vsPar === -1) return 'bg-red-500 text-white rounded-full' // Birdie
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if (vsPar === 0) return '' // Par
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if (vsPar === 1) return 'border border-border rounded-sm' // Bogey
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if (vsPar === 2) return 'border-2 border-border rounded-sm' // Double
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return 'border-2 border-destructive rounded-sm text-destructive' // Triple+
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}
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