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f1e7f18d1e
계절 배경을 미리 decode하고 두 이미지 레이어로 480ms 전환한다. 계절이 없는 지도와 reduced-motion은 불필요한 애니메이션 없이 처리한다.
36 lines
1.2 KiB
TypeScript
36 lines
1.2 KiB
TypeScript
export type MapSeason = 'spring' | 'summer' | 'fall' | 'winter';
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const FIXED_BACKGROUND_PATHS: Readonly<Record<string, string>> = {
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ludo_rathowm: 'map/ludo_rathowm/back.jpg',
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chess: 'map/chess/chessboard.png',
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pokemon_v1: 'map/pokemon_v1/back_pal8.png',
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cr: 'map/cr/bg-fs8.png',
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};
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const NEXT_SEASON: Readonly<Record<MapSeason, MapSeason>> = {
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spring: 'summer',
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summer: 'fall',
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fall: 'winter',
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winter: 'spring',
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};
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export const resolveMapSeason = (month: number): MapSeason => {
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if (month <= 3) return 'spring';
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if (month <= 6) return 'summer';
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if (month <= 9) return 'fall';
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return 'winter';
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};
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export const resolveNextMapSeason = (season: MapSeason): MapSeason => NEXT_SEASON[season];
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export const resolveMapBackgroundPath = (theme: string, season: MapSeason): { path: string; seasonal: boolean } => {
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const fixedPath = FIXED_BACKGROUND_PATHS[theme];
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if (fixedPath) {
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return { path: fixedPath, seasonal: false };
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}
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// Ref uses the CHE seasonal backgrounds for CHE, mini-CHE variants, and
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// unknown legacy-compatible themes that do not define their own backdrop.
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return { path: `map/che/bg_${season}.jpg`, seasonal: true };
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};
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