app/AppContext.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import { createContext, useContext, useState, ReactNode } from 'react';
+import { createContext, useContext, useEffect, useState, ReactNode } from 'react';
 import useSocket from '@/hooks/useSocket';
 import type { GameUpdate, Tilt } from '@/types';
 
@@ -17,12 +17,13 @@ const gameStart: GameUpdate = {
 		notes: false,
 		cardStyle: 'color',
 	},
+	tilts: Array.from({ length: 5 }, () => []),
 };
 
 export interface AppContext {
 	gameData: GameUpdate;
 	noGame: boolean;
-	tilts: Tilt[];
+	tilt: Tilt[];
 	selectCardIndex: number;
 	flipCard: (cardIndex: number) => void;
 	handleSettings: (gameData: GameUpdate) => void;
@@ -30,7 +31,7 @@ export interface AppContext {
 	select: (cardID: string) => void;
 	setGameID: (gameID: string) => void;
 	setSelectCardIndex: (cardIndex: number) => void;
-	setTilts: (tilts: Tilt[]) => void;
+	setTilt: (tilt: Tilt[]) => void;
 }
 
 export function AppProvider({ children }: { children: ReactNode }) {
@@ -38,14 +39,22 @@ export function AppProvider({ children }: { children: ReactNode }) {
 	const [gameID, setGameID] = useState('');
 	const [noGame, setNoGame] = useState(false);
 	const [selectCardIndex, setSelectCardIndex] = useState(-1);
-	const [tilts, setTilts] = useState<Tilt[]>([]);
+	const [tilt, setTilt] = useState<Tilt[]>([]);
 
-	const { flipCard, redraw, select, handleSettings } = useSocket({
+	const { flipCard, redraw, select, handleSettings, emitTilt } = useSocket({
 		gameID,
 		setGameData,
 		setNoGame,
 	});
 
+	useEffect(() => {
+		const cardIndex = tilt.findIndex((tilt) => !!tilt);
+
+		if (tilt[cardIndex]) {
+			emitTilt(cardIndex, tilt[cardIndex]);
+		}
+	}, [tilt]);
+
 	const handleSelect = (cardID: string) => {
 		setSelectCardIndex(-1);
 
@@ -55,7 +64,7 @@ export function AppProvider({ children }: { children: ReactNode }) {
 	const appInterface = {
 		gameData,
 		noGame,
-		tilts,
+		tilt,
 		selectCardIndex,
 		flipCard,
 		handleSettings,
@@ -63,7 +72,7 @@ export function AppProvider({ children }: { children: ReactNode }) {
 		select: handleSelect,
 		setGameID,
 		setSelectCardIndex,
-		setTilts,
+		setTilt,
 	};
 
 	return <AppContext.Provider value={appInterface}>{children}</AppContext.Provider>;

components/Card.tsx

@@ -55,7 +55,7 @@ export default function Card({ card, cardIndex }: CardProps) {
 		<ToolTip content={tooltip || getTooltip()}>
 			<TiltCard
 				className={`h-[21vh] w-[15vh] relative perspective transition-transform duration-200 z-0 hover:z-10 hover:scale-150 ${isDM ? 'cursor-pointer' : ''} `}
-				cardID={position.id}
+				cardIndex={cardIndex}
 			>
 				<div
 					className={`absolute inset-0 transition-transform duration-500 transform-style-preserve-3d ${flipped ? 'rotate-y-180' : ''}`}

components/TiltCard.tsx

@@ -1,39 +1,51 @@
 import { useEffect, useRef } from 'react';
 import { useAppContext } from '@/app/AppContext';
+import type { Tilt } from '@/types';
 
 export default function TiltCard({
 	children,
-	cardID,
+	cardIndex,
 	className = '',
 }: {
 	children: React.ReactNode;
-	cardID: string;
+	cardIndex: number;
 	className?: string;
 }) {
 	const cardRef = useRef<HTMLDivElement>(null);
-	const { tilts, setTilts } = useAppContext();
-
-	const card = cardRef.current;
+	const { gameData, setTilt } = useAppContext();
 
 	useEffect(() => {
+		const card = cardRef.current;
 		if (!card) return;
 
-		const tilt = tilts.find((tilt) => tilt.cardID === cardID);
+		const tilt = gameData.tilts[cardIndex];
 		if (!tilt) {
 			card.style.transform = `rotateX(0deg) rotateY(0deg)`;
 			return;
 		}
 
-		const { rotateX, rotateY } = tilt;
+		const tilted = tilt.filter(({ rotateX, rotateY }) => rotateX || rotateY);
+
+		const { totalX, totalY } = tilted.reduce(
+			({ totalX, totalY }, { rotateX, rotateY }) => ({
+				totalX: totalX + rotateX,
+				totalY: totalY + rotateY,
+			}),
+			{ totalX: 0, totalY: 0 },
+		);
+
+		const rotateX = totalX / tilted.length;
+		const rotateY = totalY / tilted.length;
 
 		if (rotateX || rotateY) {
 			card.style.transform = `rotateX(${rotateX}deg) rotateY(${rotateY}deg)`;
 		} else {
 			card.style.transform = `rotateX(0deg) rotateY(0deg)`;
 		}
-	}, [tilts]);
+	}, [gameData]);
 
 	const handleMouseMove = (e: React.MouseEvent) => {
+		const card = cardRef.current;
 		if (!card) return;
 
 		const rect = card.getBoundingClientRect();
@@ -45,13 +57,14 @@ export default function TiltCard({
 		const rotateX = ((y - centerY) / centerY) * -20;
 		const rotateY = ((x - centerX) / centerX) * 20;
 
-		setTilts([...tilts.filter((tilt) => tilt.cardID !== cardID), { cardID, rotateX, rotateY }]);
+		const newTilt: Tilt[] = [];
+		newTilt[cardIndex] = { rotateX, rotateY };
+
+		setTilt(newTilt);
 	};
 
 	const handleMouseLeave = () => {
-		if (!card) return;
-
-		setTilts(tilts.filter((tilt) => tilt.cardID !== cardID));
+		setTilt([]);
 	};
 
 	return (

hooks/useSocket.ts

@@ -1,7 +1,8 @@
 import { useEffect } from 'react';
 import { socket } from '@/socket';
+import throttle from '@/tools/throttle';
 
-import type { GameUpdate } from '@/types';
+import type { GameUpdate, Tilt } from '@/types';
 
 interface UseSocketProps {
 	gameID: string;
@@ -44,6 +45,13 @@ export default function useSocket({ gameID, setGameData, setNoGame }: UseSocketP
 		});
 	};
 
+	const handleSettings = (gameData: GameUpdate) => {
+		socket.emit('settings', {
+			gameID,
+			gameData,
+		});
+	};
+
 	const redraw = (cardIndex: number) => {
 		socket.emit('redraw', {
 			gameID,
@@ -59,17 +67,18 @@ export default function useSocket({ gameID, setGameData, setNoGame }: UseSocketP
 		});
 	};
 
-	const handleSettings = (gameData: GameUpdate) => {
-		socket.emit('settings', {
-			gameID,
-			gameData,
+	const emitTilt = throttle((cardIndex: number, tilt: Tilt) => {
+		socket.emit('tilt', {
+			cardIndex,
+			tilt,
 		});
-	};
+	}, 33.3);
 
 	return {
 		flipCard,
+		handleSettings,
 		redraw,
 		select,
-		handleSettings,
+		emitTilt,
 	};
 }

lib/GameStore.ts

@@ -2,7 +2,7 @@ import Deck from '@/lib/TarokkaDeck';
 import generateID from '@/tools/simpleID';
 import parseMilliseconds from '@/tools/parseMilliseconds';
 import { HOUR, DAY } from '@/constants/time';
-import { GameState, GameUpdate, Settings } from '@/types';
+import { GameState, GameUpdate, Settings, Tilt } from '@/types';
 
 const deck = new Deck();
 
@@ -91,6 +91,7 @@ export default class GameStore {
 				notes: true,
 				cardStyle: 'color',
 			},
+			tilts: Array.from({ length: 5 }, () => []),
 		};
 
 		this.totalCreated++;
@@ -157,6 +158,21 @@ export default class GameStore {
 		return this.gameUpdate(game);
 	}
 
+	tilt(playerID: string, cardIndex: number, { rotateX, rotateY }: Tilt) {
+		const game = this.getGameByPlayerID(playerID);
+		const cardTilts = game.tilts[cardIndex];
+
+		if (!cardTilts) throw new Error(`Card tilts ${cardIndex} not found`);
+
+		game.tilts[cardIndex] = [
+			...cardTilts.filter((tilt) => tilt.playerID !== playerID),
+			{ playerID, rotateX, rotateY },
+		];
+		game.lastUpdated = Date.now();
+
+		return this.gameUpdate(game);
+	}
+
 	updateSettings(gameID: string, settings: Settings) {
 		const game = this.getGame(gameID);
 
@@ -173,10 +189,18 @@ export default class GameStore {
 		return game;
 	}
 
-	gameUpdate(game: GameState): GameUpdate {
-		const { dmID, spectatorID, cards, settings } = game;
+	getGameByPlayerID(playerID: string): GameState {
+		const game = this.players.get(playerID);
 
-		return { dmID, spectatorID, cards, settings };
+		if (!game) throw new Error(`Player ${playerID} not found`);
+
+		return game;
+	}
+
+	gameUpdate(game: GameState): GameUpdate {
+		const { dmID, spectatorID, cards, settings, tilts } = game;
+
+		return { dmID, spectatorID, cards, settings, tilts };
 	}
 
 	playerExit(playerID: string): GameState | null {
@@ -185,9 +209,7 @@ export default class GameStore {
 
 			return null;
 		} else {
-			const game = this.players.get(playerID);
-
-			if (!game) throw new Error(`Player ${playerID} not found`);
+			const game = this.getGameByPlayerID(playerID);
 
 			this.players.delete(playerID);
 			return this.leaveGame(game, playerID);

server.ts

@@ -119,10 +119,10 @@ app.prepare().then(() => {
 			}
 		});
 
-		socket.on('tilt', ({ gameID, tilt }: { gameID: string; tilt: Tilt }) => {
+		socket.on('tilt', ({ cardIndex, tilt }: { cardIndex: number; tilt: Tilt }) => {
 			try {
-				const gameState = gameStore.getGame(gameID);
-				broadcast('tilt', gameState);
+				const gameState = gameStore.tilt(socket.id, cardIndex, tilt);
+				broadcast('game-update', gameState);
 			} catch (e) {
 				const error = e instanceof Error ? e.message : e;
 				console.error(Date.now(), 'Error[tilt]', error);

types/index.ts

@@ -82,6 +82,7 @@ export interface GameState {
 	cards: TarokkaGameCard[];
 	lastUpdated: number;
 	settings: Settings;
+	tilts: Tilt[][];
 }
 
 export interface GameUpdate {
@@ -89,6 +90,7 @@ export interface GameUpdate {
 	spectatorID: string;
 	cards: TarokkaGameCard[];
 	settings: Settings;
+	tilts: Tilt[][];
 }
 
 export interface ClientUpdate {
@@ -105,7 +107,7 @@ export interface Layout {
 }
 
 export interface Tilt {
-	cardID: string;
+	playerID?: string;
 	rotateX: number;
 	rotateY: number;
 }