Fix rate adjust mods not working in multi when freemod is active

server/Util.ts

@@ -33,3 +33,7 @@ export function isNullOrEmpty(str:string | undefined | null) {
 
 	return false;
 }
+
+export function enumHasFlag(value:number, flag:number) : boolean {
+	return (value & flag) === flag;
+}

server/enums/Mods.ts

@@ -1,4 +1,33 @@
-// TODO: Mods enum
+// TODO: Complete mods enum.
 export enum Mods {
-	None
+	None,
+	NoFail = 1 << 0,
+	Easy = 1 << 1,
+	// 2 was used for the "No Video" mod but that's gone now.
+	Hidden = 1 << 3,
+	HardRock = 1 << 4,
+	SuddenDeath = 1 << 5,
+	DoubleTime = 1 << 6,
+	Relax = 1 << 7,
+	HalfTime = 1 << 8,
+	Nightcore = 1 << 9,
+	Flashlight = 1 << 10,
+	Autoplay = 1 << 11,
+	SpunOut = 1 << 12,
+	Autopilot = 1 << 13, // I think this is autopilot???
+	Perfect = 1 << 14,
+	Mania4K = 1 << 15,
+	Mania5K = 1 << 16,
+	Mania6K = 1 << 17,
+	Mania7K = 1 << 18,
+	Mania8K = 1 << 19,
+	FadeIn = 1 << 20,
+	Random = 1 << 21,
+	Cinema = 1 << 22,
+	Target = 1 << 23,
+	Mania9K = 1 << 24,
+	ManiaCoop = 1 << 25,
+	Mania1K = 1 << 26,
+	Mania3K = 1 << 27,
+	Mania2K = 1 << 28
 }

server/objects/Match.ts

@@ -11,8 +11,14 @@ import MatchStartSkipData from "../interfaces/MatchStartSkipData";
 import { Mods } from "../enums/Mods";
 import PlayerScore from "../interfaces/PlayerScore";
 import MatchScoreData from "../interfaces/MatchScoreData";
+import { enumHasFlag } from "../Util";
 import osu from "../../osuTyping";
 
+// Mods which need to be applied to the match during freemod.
+const matchFreemodGlobalMods:Array<Mods> = [
+	Mods.DoubleTime, Mods.Nightcore, Mods.HalfTime
+]
+
 export default class Match {
 	// osu! Data
 	public matchId:number = -1;
@@ -431,6 +437,19 @@ export default class Match {
 		if (this.specialModes === 1) {
 			slot.mods = mods;
 
+			// Extra check for host during freemod
+			if (User.Equals(this.host, user)) {
+				let generatedMatchModList = 0;
+				for (const mod of matchFreemodGlobalMods) {
+					if (enumHasFlag(slot.mods, mod)) {
+						slot.mods -= mod;
+						generatedMatchModList += mod;
+					}
+				}
+
+				this.activeMods = generatedMatchModList;
+			}
+
 			this.sendMatchUpdate();
 		} else {
 			if (!User.Equals(this.host, user)) {
@@ -632,7 +651,7 @@ export default class Match {
 			return;
 		}
 
-		matchScoreData.id = user.id;
+		matchScoreData.id = user.matchSlot.slotId;
 
 		// Update playerScores
 		for (const playerScore of this.playerScores) {