merge: scenario 2400 long-run parity

2026-08-04 18:19:53 +00:00
parent 145d41841a cef6a90452
commit bbb6de6971
30 changed files with 517 additions and 183 deletions
@@ -21,7 +21,11 @@ export const round = (value: number): number => {
        return Math.round(value);
    }

-    const corrected = value + Math.sign(value) * Number.EPSILON * Math.max(1, Math.abs(value));
+    // PHP 8.3's round() uses a wider half-boundary fuzz than one JavaScript
+    // ulp at four-digit battle totals. Accumulating several fractional battle
+    // rewards can land about three ulps below .5 (for example
+    // 8719.4999999999945), which PHP still rounds upward.
+    const corrected = value + Math.sign(value) * Number.EPSILON * Math.max(1, Math.abs(value)) * 4;
    return corrected < 0 ? Math.ceil(corrected - 0.5) : Math.floor(corrected + 0.5);
 };