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777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 | /** * Server-side validator for Complement Race multiplayer game * Handles question generation, answer validation, passenger management, and race progression */ import type { GameValidator, ValidationResult } from '@/lib/arcade/game-sdk' import { ComplementRaceStateSchema, type ComplementRaceState, type ComplementRaceMove, type ComplementRaceConfig, type ComplementQuestion, type Passenger, type Station, type PlayerState, type AnswerValidation, } from './types' // ============================================================================ // Constants // ============================================================================ const PLAYER_COLORS = ['#3B82F6', '#10B981', '#F59E0B', '#8B5CF6'] // Blue, Green, Amber, Purple const DEFAULT_STATIONS: Station[] = [ { id: 'depot', name: 'Depot', position: 0, icon: '🚉', emoji: '🚉' }, { id: 'riverside', name: 'Riverside', position: 20, icon: '🌊', emoji: '🌊' }, { id: 'hillside', name: 'Hillside', position: 40, icon: '⛰️', emoji: '⛰️' }, { id: 'canyon', name: 'Canyon View', position: 60, icon: '🏜️', emoji: '🏜️' }, { id: 'meadows', name: 'Meadows', position: 80, icon: '🌾', emoji: '🌾' }, { id: 'grand-central', name: 'Grand Central', position: 100, icon: '🏛️', emoji: '🏛️', }, ] const PASSENGER_NAMES = [ 'Alice', 'Bob', 'Charlie', 'Diana', 'Eve', 'Frank', 'Grace', 'Henry', 'Iris', 'Jack', 'Kate', 'Leo', 'Mia', 'Noah', 'Olivia', 'Paul', ] const PASSENGER_AVATARS = [ '👨💼', '👩💼', '👨🎓', '👩🎓', '👨🍳', '👩🍳', '👨⚕️', '👩⚕️', '👨🔧', '👩🔧', '👨🏫', '👩🏫', '👵', '👴', '🧑🎨', '👨🚒', ] // ============================================================================ // Validator Class // ============================================================================ export class ComplementRaceValidator implements GameValidator<ComplementRaceState, ComplementRaceMove> { // Zod schema for runtime validation of state loaded from database stateSchema = ComplementRaceStateSchema validateMove(state: ComplementRaceState, move: ComplementRaceMove): ValidationResult { switch (move.type) { case 'START_GAME': return this.validateStartGame(state, move.data.activePlayers, move.data.playerMetadata) case 'SET_READY': return this.validateSetReady(state, move.playerId, move.data.ready) case 'SET_CONFIG': return this.validateSetConfig(state, move.data.field, move.data.value) case 'SUBMIT_ANSWER': return this.validateSubmitAnswer( state, move.playerId, move.data.answer, move.data.responseTime ) case 'UPDATE_INPUT': return this.validateUpdateInput(state, move.playerId, move.data.input) case 'UPDATE_POSITION': return this.validateUpdatePosition(state, move.playerId, move.data.position) case 'CLAIM_PASSENGER': return this.validateClaimPassenger( state, move.playerId, move.data.passengerId, move.data.carIndex ) case 'DELIVER_PASSENGER': return this.validateDeliverPassenger(state, move.playerId, move.data.passengerId) case 'NEXT_QUESTION': return this.validateNextQuestion(state) case 'START_NEW_ROUTE': return this.validateStartNewRoute(state, move.data.routeNumber) case 'END_GAME': return this.validateEndGame(state) case 'PLAY_AGAIN': return this.validatePlayAgain(state) case 'GO_TO_SETUP': return this.validateGoToSetup(state) default: return { valid: false, error: `Unknown move type: ${(move as { type: string }).type}`, } } } // ========================================================================== // Setup & Lobby Phase // ========================================================================== private validateStartGame( state: ComplementRaceState, activePlayers: string[], playerMetadata: Record<string, unknown> ): ValidationResult { if (state.gamePhase !== 'setup' && state.gamePhase !== 'lobby') { return { valid: false, error: 'Game already started' } } if (!activePlayers || activePlayers.length < 1) { return { valid: false, error: 'Need at least 1 player' } } if (activePlayers.length > state.config.maxPlayers) { return { valid: false, error: `Too many players (max ${state.config.maxPlayers})`, } } // Initialize player states const players: Record<string, PlayerState> = {} for (let i = 0; i < activePlayers.length; i++) { const playerId = activePlayers[i] const metadata = playerMetadata[playerId] as { name: string } players[playerId] = { id: playerId, name: metadata.name || `Player ${i + 1}`, color: PLAYER_COLORS[i % PLAYER_COLORS.length], score: 0, streak: 0, bestStreak: 0, correctAnswers: 0, totalQuestions: 0, position: 0, // Only used for practice/survival; sprint mode is client-side isReady: false, isActive: true, currentAnswer: null, lastAnswerTime: null, passengers: [], deliveredPassengers: 0, } } // Generate initial questions for each player const currentQuestions: Record<string, ComplementQuestion> = {} for (const playerId of activePlayers) { currentQuestions[playerId] = this.generateQuestion(state.config.mode) } // Sprint mode: generate initial passengers const passengers = state.config.style === 'sprint' ? this.generatePassengers(state.config.passengerCount, state.stations) : [] // Calculate maxConcurrentPassengers based on initial passenger layout (sprint mode only) let updatedConfig = state.config if (state.config.style === 'sprint' && passengers.length > 0) { const maxConcurrentPassengers = Math.max( 1, this.calculateMaxConcurrentPassengers(passengers, state.stations) ) console.log( `[Game Start] Calculated maxConcurrentPassengers: ${maxConcurrentPassengers} for ${passengers.length} passengers` ) updatedConfig = { ...state.config, maxConcurrentPassengers, } } const newState: ComplementRaceState = { ...state, config: updatedConfig, gamePhase: 'playing', // Go directly to playing (countdown can be added later) activePlayers, playerMetadata: playerMetadata as typeof state.playerMetadata, players, currentQuestions, questionStartTime: Date.now(), passengers, routeStartTime: state.config.style === 'sprint' ? Date.now() : null, raceStartTime: Date.now(), // Race starts immediately gameStartTime: Date.now(), aiOpponents: [], // AI handled client-side } return { valid: true, newState } } private validateSetReady( state: ComplementRaceState, playerId: string, ready: boolean ): ValidationResult { if (state.gamePhase !== 'lobby') { return { valid: false, error: 'Not in lobby phase' } } if (!state.players[playerId]) { return { valid: false, error: 'Player not in game' } } const newState: ComplementRaceState = { ...state, players: { ...state.players, [playerId]: { ...state.players[playerId], isReady: ready, }, }, } // Check if all players are ready const allReady = Object.values(newState.players).every((p) => p.isReady) if (allReady && state.activePlayers.length >= 1) { newState.gamePhase = 'countdown' newState.raceStartTime = Date.now() + 3000 // 3 second countdown } return { valid: true, newState } } private validateSetConfig( state: ComplementRaceState, field: keyof ComplementRaceConfig, value: unknown ): ValidationResult { if (state.gamePhase !== 'setup') { return { valid: false, error: 'Can only change config in setup' } } // Validate the value based on field // (Add specific validation per field as needed) const newState: ComplementRaceState = { ...state, config: { ...state.config, [field]: value, }, } return { valid: true, newState } } // ========================================================================== // Playing Phase: Answer Validation // ========================================================================== private validateSubmitAnswer( state: ComplementRaceState, playerId: string, answer: number, responseTime: number ): ValidationResult { if (state.gamePhase !== 'playing') { return { valid: false, error: 'Game not in playing phase' } } const player = state.players[playerId] if (!player) { return { valid: false, error: 'Player not found' } } const question = state.currentQuestions[playerId] if (!question) { return { valid: false, error: 'No question for this player' } } // Validate answer const correct = answer === question.correctAnswer const validation = this.calculateAnswerScore( correct, responseTime, player.streak, state.config.style ) // Update player state const updatedPlayer: PlayerState = { ...player, totalQuestions: player.totalQuestions + 1, correctAnswers: correct ? player.correctAnswers + 1 : player.correctAnswers, score: player.score + validation.totalPoints, streak: validation.newStreak, bestStreak: Math.max(player.bestStreak, validation.newStreak), lastAnswerTime: Date.now(), currentAnswer: null, } // Update position based on game mode if (state.config.style === 'practice') { // Practice: Move forward on correct answer if (correct) { updatedPlayer.position = Math.min(100, player.position + 100 / state.config.raceGoal) } } else if (state.config.style === 'sprint') { // Sprint: All momentum/position handled client-side for smooth 20fps movement // Server only tracks scoring, passengers, and game progression // No server-side position updates needed } else if (state.config.style === 'survival') { // Survival: Always move forward, speed based on accuracy const moveDistance = correct ? 5 : 2 updatedPlayer.position = player.position + moveDistance } // Generate new question for this player const newQuestion = this.generateQuestion(state.config.mode) const newState: ComplementRaceState = { ...state, players: { ...state.players, [playerId]: updatedPlayer, }, currentQuestions: { ...state.currentQuestions, [playerId]: newQuestion, }, } // Check win conditions const winner = this.checkWinCondition(newState) if (winner) { newState.gamePhase = 'results' newState.winner = winner newState.raceEndTime = Date.now() newState.leaderboard = this.calculateLeaderboard(newState) } return { valid: true, newState } } private validateUpdateInput( state: ComplementRaceState, playerId: string, input: string ): ValidationResult { if (state.gamePhase !== 'playing') { return { valid: false, error: 'Game not in playing phase' } } const player = state.players[playerId] if (!player) { return { valid: false, error: 'Player not found' } } const newState: ComplementRaceState = { ...state, players: { ...state.players, [playerId]: { ...player, currentAnswer: input, }, }, } return { valid: true, newState } } private validateUpdatePosition( state: ComplementRaceState, playerId: string, position: number ): ValidationResult { if (state.gamePhase !== 'playing') { return { valid: false, error: 'Game not in playing phase' } } const player = state.players[playerId] if (!player) { return { valid: false, error: 'Player not found' } } // Validate position is a reasonable number (0-100) if (typeof position !== 'number' || position < 0 || position > 100) { return { valid: false, error: 'Invalid position value' } } const newState: ComplementRaceState = { ...state, players: { ...state.players, [playerId]: { ...player, position, }, }, } return { valid: true, newState } } // ========================================================================== // Sprint Mode: Passenger Management // ========================================================================== private validateClaimPassenger( state: ComplementRaceState, playerId: string, passengerId: string, carIndex: number ): ValidationResult { if (state.config.style !== 'sprint') { return { valid: false, error: 'Passengers only available in sprint mode', } } const player = state.players[playerId] if (!player) { return { valid: false, error: 'Player not found' } } // Check if player has space if (player.passengers.length >= state.config.maxConcurrentPassengers) { return { valid: false, error: 'Train is full' } } // Find passenger const passengerIndex = state.passengers.findIndex((p) => p.id === passengerId) if (passengerIndex === -1) { return { valid: false, error: 'Passenger not found' } } const passenger = state.passengers[passengerIndex] if (passenger.claimedBy !== null) { return { valid: false, error: 'Passenger already claimed' } } // Sprint mode: Position is client-side, trust client's spatial checking // (Client checks position in useSteamJourney before sending CLAIM move) // Other modes: Validate position server-side if (state.config.style !== 'sprint') { const originStation = state.stations.find((s) => s.id === passenger.originStationId) if (!originStation) { return { valid: false, error: 'Origin station not found' } } const distance = Math.abs(player.position - originStation.position) if (distance > 5) { return { valid: false, error: 'Not at origin station' } } } // Claim passenger and assign to physical car const updatedPassengers = [...state.passengers] updatedPassengers[passengerIndex] = { ...passenger, claimedBy: playerId, carIndex, // Store which physical car (0-N) the passenger is seated in } const newState: ComplementRaceState = { ...state, passengers: updatedPassengers, players: { ...state.players, [playerId]: { ...player, passengers: [...player.passengers, passengerId], }, }, } return { valid: true, newState } } private validateDeliverPassenger( state: ComplementRaceState, playerId: string, passengerId: string ): ValidationResult { if (state.config.style !== 'sprint') { return { valid: false, error: 'Passengers only available in sprint mode', } } const player = state.players[playerId] if (!player) { return { valid: false, error: 'Player not found' } } // Check if player has this passenger if (!player.passengers.includes(passengerId)) { return { valid: false, error: 'Player does not have this passenger' } } // Find passenger const passengerIndex = state.passengers.findIndex((p) => p.id === passengerId) if (passengerIndex === -1) { return { valid: false, error: 'Passenger not found' } } const passenger = state.passengers[passengerIndex] if (passenger.deliveredBy !== null) { return { valid: false, error: 'Passenger already delivered' } } // Sprint mode: Position is client-side, trust client's spatial checking // (Client checks position in useSteamJourney before sending DELIVER move) // Other modes: Validate position server-side if (state.config.style !== 'sprint') { const destStation = state.stations.find((s) => s.id === passenger.destinationStationId) if (!destStation) { return { valid: false, error: 'Destination station not found' } } const distance = Math.abs(player.position - destStation.position) if (distance > 5) { return { valid: false, error: 'Not at destination station' } } } // Deliver passenger and award points const points = passenger.isUrgent ? 20 : 10 const updatedPassengers = [...state.passengers] updatedPassengers[passengerIndex] = { ...passenger, deliveredBy: playerId, } const newState: ComplementRaceState = { ...state, passengers: updatedPassengers, players: { ...state.players, [playerId]: { ...player, passengers: player.passengers.filter((id) => id !== passengerId), deliveredPassengers: player.deliveredPassengers + 1, score: player.score + points, }, }, } return { valid: true, newState } } private validateStartNewRoute(state: ComplementRaceState, routeNumber: number): ValidationResult { if (state.config.style !== 'sprint') { return { valid: false, error: 'Routes only available in sprint mode' } } // Reset all player positions to 0 for new route (client handles momentum reset) const resetPlayers: Record<string, PlayerState> = {} for (const [playerId, player] of Object.entries(state.players)) { resetPlayers[playerId] = { ...player, position: 0, // Server position not used in sprint; client will reset passengers: [], // Clear any remaining passengers } } // Generate new passengers const newPassengers = this.generatePassengers(state.config.passengerCount, state.stations) // Calculate maxConcurrentPassengers based on the new route's passenger layout const maxConcurrentPassengers = Math.max( 1, this.calculateMaxConcurrentPassengers(newPassengers, state.stations) ) console.log( `[Route ${routeNumber}] Calculated maxConcurrentPassengers: ${maxConcurrentPassengers} for ${newPassengers.length} passengers` ) const newState: ComplementRaceState = { ...state, currentRoute: routeNumber, routeStartTime: Date.now(), players: resetPlayers, passengers: newPassengers, config: { ...state.config, maxConcurrentPassengers, // Update config with calculated value }, } return { valid: true, newState } } // ========================================================================== // Game Flow Control // ========================================================================== private validateNextQuestion(state: ComplementRaceState): ValidationResult { // Generate new questions for all players const newQuestions: Record<string, ComplementQuestion> = {} for (const playerId of state.activePlayers) { newQuestions[playerId] = this.generateQuestion(state.config.mode) } const newState: ComplementRaceState = { ...state, currentQuestions: newQuestions, questionStartTime: Date.now(), } return { valid: true, newState } } private validateEndGame(state: ComplementRaceState): ValidationResult { const newState: ComplementRaceState = { ...state, gamePhase: 'results', raceEndTime: Date.now(), leaderboard: this.calculateLeaderboard(state), } return { valid: true, newState } } private validatePlayAgain(state: ComplementRaceState): ValidationResult { if (state.gamePhase !== 'results') { return { valid: false, error: 'Game not finished' } } // Reset to lobby with same players return this.validateGoToSetup(state) } private validateGoToSetup(state: ComplementRaceState): ValidationResult { const newState: ComplementRaceState = this.getInitialState(state.config) return { valid: true, newState } } // ========================================================================== // Helper Methods // ========================================================================== private generateQuestion(mode: 'friends5' | 'friends10' | 'mixed'): ComplementQuestion { let targetSum: number if (mode === 'friends5') { targetSum = 5 } else if (mode === 'friends10') { targetSum = 10 } else { targetSum = Math.random() < 0.5 ? 5 : 10 } const number = Math.floor(Math.random() * targetSum) const correctAnswer = targetSum - number return { id: `q-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`, number, targetSum, correctAnswer, showAsAbacus: Math.random() < 0.5, // 50/50 random display timestamp: Date.now(), } } private calculateAnswerScore( correct: boolean, responseTime: number, currentStreak: number, gameStyle: 'practice' | 'sprint' | 'survival' ): AnswerValidation { if (!correct) { return { correct: false, responseTime, speedBonus: 0, streakBonus: 0, totalPoints: 0, newStreak: 0, } } // Base points const basePoints = 100 // Speed bonus (max 300 for <500ms, down to 0 at 3000ms) const speedBonus = Math.max(0, 300 - Math.floor(responseTime / 100)) // Streak bonus const newStreak = currentStreak + 1 const streakBonus = newStreak * 50 // Total const totalPoints = basePoints + speedBonus + streakBonus return { correct: true, responseTime, speedBonus, streakBonus, totalPoints, newStreak, } } private generatePassengers(count: number, stations: Station[]): Passenger[] { const passengers: Passenger[] = [] const usedCombos = new Set<string>() for (let i = 0; i < count; i++) { let name: string let avatar: string let comboKey: string // Keep trying until we get a unique name/avatar combo do { const nameIndex = Math.floor(Math.random() * PASSENGER_NAMES.length) const avatarIndex = Math.floor(Math.random() * PASSENGER_AVATARS.length) name = PASSENGER_NAMES[nameIndex] avatar = PASSENGER_AVATARS[avatarIndex] comboKey = `${name}-${avatar}` } while (usedCombos.has(comboKey) && usedCombos.size < 100) // Prevent infinite loop usedCombos.add(comboKey) // Pick origin and destination stations // KEY: Destination must be AHEAD of origin (higher position on track) // This ensures passengers travel forward, creating better overlap let originStation: Station let destinationStation: Station if (Math.random() < 0.4 || stations.length < 3) { // 40% chance to start at depot (first station) originStation = stations[0] // Pick any station ahead as destination const stationsAhead = stations.slice(1) destinationStation = stationsAhead[Math.floor(Math.random() * stationsAhead.length)] } else { // Start at a random non-depot, non-final station const nonDepotStations = stations.slice(1, -1) // Exclude depot and final station originStation = nonDepotStations[Math.floor(Math.random() * nonDepotStations.length)] // Pick a station ahead of origin (higher position) const stationsAhead = stations.filter((s) => s.position > originStation.position) destinationStation = stationsAhead[Math.floor(Math.random() * stationsAhead.length)] } // 30% chance of urgent const isUrgent = Math.random() < 0.3 const passenger = { id: `p-${Date.now()}-${i}-${Math.random().toString(36).substr(2, 9)}`, name, avatar, originStationId: originStation.id, destinationStationId: destinationStation.id, isUrgent, claimedBy: null, deliveredBy: null, carIndex: null, // Not boarded yet timestamp: Date.now(), } passengers.push(passenger) console.log( `[Passenger ${i + 1}/${count}] ${name} waiting at ${originStation.emoji} ${originStation.name} (pos ${originStation.position}) → ${destinationStation.emoji} ${destinationStation.name} (pos ${destinationStation.position}) ${isUrgent ? '⚡ URGENT' : ''}` ) } console.log(`[Generated ${passengers.length} passengers total]`) return passengers } /** * Calculate the maximum number of passengers that will be on the train * concurrently at any given moment during the route */ private calculateMaxConcurrentPassengers(passengers: Passenger[], stations: Station[]): number { // Create events for boarding and delivery interface StationEvent { position: number isBoarding: boolean // true = board, false = delivery } const events: StationEvent[] = [] for (const passenger of passengers) { const originStation = stations.find((s) => s.id === passenger.originStationId) const destStation = stations.find((s) => s.id === passenger.destinationStationId) if (originStation && destStation) { events.push({ position: originStation.position, isBoarding: true }) events.push({ position: destStation.position, isBoarding: false }) } } // Sort events by position, with deliveries before boardings at the same position events.sort((a, b) => { if (a.position !== b.position) return a.position - b.position // At same position, deliveries happen before boarding return a.isBoarding ? 1 : -1 }) // Track current passenger count and maximum let currentCount = 0 let maxCount = 0 for (const event of events) { if (event.isBoarding) { currentCount++ maxCount = Math.max(maxCount, currentCount) } else { currentCount-- } } return maxCount } private checkWinCondition(state: ComplementRaceState): string | null { const { config, players } = state // Infinite mode: Never end the game if (config.winCondition === 'infinite') { return null } // Practice mode: First to reach goal if (config.style === 'practice') { for (const [playerId, player] of Object.entries(players)) { if (player.correctAnswers >= config.raceGoal) { return playerId } } // AI wins handled client-side via useAIRacers hook } // Sprint mode: Check route-based, score-based, or time-based win conditions if (config.style === 'sprint') { if (config.winCondition === 'score-based' && config.targetScore) { for (const [playerId, player] of Object.entries(players)) { if (player.score >= config.targetScore) { return playerId } } } if (config.winCondition === 'route-based' && config.routeCount) { if (state.currentRoute >= config.routeCount) { // Find player with highest score let maxScore = 0 let winner: string | null = null for (const [playerId, player] of Object.entries(players)) { if (player.score > maxScore) { maxScore = player.score winner = playerId } } return winner } } if (config.winCondition === 'time-based' && config.timeLimit) { const elapsed = state.routeStartTime ? (Date.now() - state.routeStartTime) / 1000 : 0 if (elapsed >= config.timeLimit) { // Find player with most deliveries let maxDeliveries = 0 let winner: string | null = null for (const [playerId, player] of Object.entries(players)) { if (player.deliveredPassengers > maxDeliveries) { maxDeliveries = player.deliveredPassengers winner = playerId } } return winner } } } // Survival mode: Most laps in time limit if (config.style === 'survival' && config.timeLimit) { const elapsed = state.raceStartTime ? (Date.now() - state.raceStartTime) / 1000 : 0 if (elapsed >= config.timeLimit) { // Find player with highest position (most laps) let maxPosition = 0 let winner: string | null = null for (const [playerId, player] of Object.entries(players)) { if (player.position > maxPosition) { maxPosition = player.position winner = playerId } } // AI wins handled client-side via useAIRacers hook return winner } } return null } private calculateLeaderboard(state: ComplementRaceState): Array<{ playerId: string score: number rank: number }> { const entries = Object.values(state.players) .map((p) => ({ playerId: p.id, score: p.score })) .sort((a, b) => b.score - a.score) return entries.map((entry, index) => ({ ...entry, rank: index + 1, })) } // ========================================================================== // GameValidator Interface Implementation // ========================================================================== isGameComplete(state: ComplementRaceState): boolean { return state.gamePhase === 'results' && state.winner !== null } getInitialState(config: unknown): ComplementRaceState { const typedConfig = config as ComplementRaceConfig return { config: typedConfig, gamePhase: 'setup', activePlayers: [], playerMetadata: {}, players: {}, currentQuestions: {}, questionStartTime: 0, stations: DEFAULT_STATIONS, passengers: [], currentRoute: 1, routeStartTime: null, raceStartTime: null, raceEndTime: null, winner: null, leaderboard: [], aiOpponents: [], gameStartTime: null, gameEndTime: null, } } } export const complementRaceValidator = new ComplementRaceValidator() |