fix(game-ui): 국가색 배경의 대비 전경색을 보완

2026-08-19 14:19:06 +00:00
parent 78f75349fc
commit 8ed2b68878
19 changed files with 261 additions and 123 deletions
@@ -21,3 +21,17 @@ const lightTextBackgrounds = new Set([

 export const legacyNationTextColor = (backgroundColor: string): '#FFFFFF' | '#000000' =>
    lightTextBackgrounds.has(backgroundColor.toUpperCase()) ? '#FFFFFF' : '#000000';
+
+/** Mirrors Ref `isBrightColor()`, used by Vue nation labels and message targets. */
+export const isLegacyNationColorBright = (backgroundColor: string): boolean => {
+    const normalized = backgroundColor.trim().replace(/^#/u, '');
+    if (!/^[0-9a-f]{6}$/iu.test(normalized)) return false;
+
+    const red = Number.parseInt(normalized.slice(0, 2), 16);
+    const green = Number.parseInt(normalized.slice(2, 4), 16);
+    const blue = Number.parseInt(normalized.slice(4, 6), 16);
+    return red * 0.299 + green * 0.587 + blue * 0.114 > 140;
+};
+
+export const legacyLuminanceTextColor = (backgroundColor: string): '#000000' | '#FFFFFF' =>
+    isLegacyNationColorBright(backgroundColor) ? '#000000' : '#FFFFFF';