399 lines
17 KiB
JavaScript
399 lines
17 KiB
JavaScript
"use strict";
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/**
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* YAML World Model Parser
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* Loads and validates world definitions from YAML files
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*/
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || (function () {
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var ownKeys = function(o) {
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ownKeys = Object.getOwnPropertyNames || function (o) {
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var ar = [];
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for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
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return ar;
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};
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return ownKeys(o);
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};
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return function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
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__setModuleDefault(result, mod);
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return result;
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.YamlWorldParser = void 0;
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const fs = __importStar(require("fs/promises"));
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const yaml = __importStar(require("js-yaml"));
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class YamlWorldParser {
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/**
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* Load a world model from a YAML file
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*/
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static async loadFromFile(filePath) {
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try {
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const fileContents = await fs.readFile(filePath, 'utf8');
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const worldData = yaml.load(fileContents);
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return this.validateAndTransform(worldData);
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}
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catch (error) {
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console.error(`Error loading world from ${filePath}:`, error);
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throw new Error(`Failed to load world from ${filePath}: ${error instanceof Error ? error.message : String(error)}`);
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}
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}
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/**
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* Validate the loaded YAML data and transform it into a WorldModel
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*/
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static validateAndTransform(data) {
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if (!data || typeof data !== 'object') {
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throw new Error('Invalid world data: must be an object');
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}
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const worldData = data;
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// Validate required top-level fields
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this.validateRequiredFields(worldData, ['title', 'author', 'version', 'introduction', 'rooms', 'initialState']);
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// Transform and validate the world model
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const worldModel = {
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title: this.validateString(worldData.title, 'title'),
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author: this.validateString(worldData.author, 'author'),
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version: this.validateString(worldData.version, 'version'),
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introduction: this.validateString(worldData.introduction, 'introduction'),
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rooms: this.validateRooms(worldData.rooms),
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objects: this.validateObjects(worldData.objects),
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characters: this.validateCharacters(worldData.characters),
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actions: this.validateActions(worldData.actions),
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initialState: this.validateInitialState(worldData.initialState)
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};
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// Validate references between entities
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this.validateReferences(worldModel);
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return worldModel;
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}
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/**
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* Validate that an object has all required fields
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*/
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static validateRequiredFields(data, requiredFields) {
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for (const field of requiredFields) {
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if (!(field in data)) {
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throw new Error(`Missing required field: ${field}`);
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}
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}
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}
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/**
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* Validate that a value is a string
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*/
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static validateString(value, fieldName) {
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if (typeof value !== 'string') {
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throw new Error(`Field ${fieldName} must be a string`);
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}
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return value;
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}
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/**
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* Validate room definitions
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*/
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static validateRooms(rooms) {
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if (!rooms || typeof rooms !== 'object') {
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throw new Error('Rooms must be an object mapping room IDs to room definitions');
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}
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const roomsData = rooms;
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const validatedRooms = {};
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for (const [roomId, roomData] of Object.entries(roomsData)) {
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if (!roomData || typeof roomData !== 'object') {
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throw new Error(`Room ${roomId} must be an object`);
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}
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const room = roomData;
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this.validateRequiredFields(room, ['name', 'description', 'exits']);
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validatedRooms[roomId] = {
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id: roomId,
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name: this.validateString(room.name, `rooms.${roomId}.name`),
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description: this.validateString(room.description, `rooms.${roomId}.description`),
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exits: this.validateExits(room.exits, roomId),
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objects: this.validateStringArray(room.objects || [], `rooms.${roomId}.objects`),
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characters: this.validateStringArray(room.characters || [], `rooms.${roomId}.characters`)
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};
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}
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return validatedRooms;
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}
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/**
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* Validate exit definitions
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*/
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static validateExits(exits, roomId) {
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if (!Array.isArray(exits)) {
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throw new Error(`Exits for room ${roomId} must be an array`);
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}
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return exits.map((exit, index) => {
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if (!exit || typeof exit !== 'object') {
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throw new Error(`Exit ${index} in room ${roomId} must be an object`);
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}
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const exitData = exit;
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this.validateRequiredFields(exitData, ['direction', 'targetRoomId']);
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return {
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direction: this.validateString(exitData.direction, `rooms.${roomId}.exits[${index}].direction`),
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targetRoomId: this.validateString(exitData.targetRoomId, `rooms.${roomId}.exits[${index}].targetRoomId`),
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description: exitData.description ? this.validateString(exitData.description, `rooms.${roomId}.exits[${index}].description`) : undefined,
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isLocked: typeof exitData.isLocked === 'boolean' ? exitData.isLocked : false,
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keyId: exitData.keyId ? this.validateString(exitData.keyId, `rooms.${roomId}.exits[${index}].keyId`) : undefined
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};
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});
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}
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/**
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* Validate object definitions
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*/
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static validateObjects(objects) {
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if (!objects)
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return {}; // Objects are optional
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if (typeof objects !== 'object') {
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throw new Error('Objects must be an object mapping object IDs to object definitions');
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}
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const objectsData = objects;
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const validatedObjects = {};
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for (const [objectId, objectData] of Object.entries(objectsData)) {
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if (!objectData || typeof objectData !== 'object') {
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throw new Error(`Object ${objectId} must be an object`);
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}
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const obj = objectData;
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this.validateRequiredFields(obj, ['name', 'description', 'traits', 'allowedActions']);
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validatedObjects[objectId] = {
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id: objectId,
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name: this.validateString(obj.name, `objects.${objectId}.name`),
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description: this.validateString(obj.description, `objects.${objectId}.description`),
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traits: this.validateStringArray(obj.traits, `objects.${objectId}.traits`),
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states: this.validateObjectStates(obj.states, objectId),
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allowedActions: this.validateStringArray(obj.allowedActions, `objects.${objectId}.allowedActions`),
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containedObjects: obj.containedObjects ? this.validateStringArray(obj.containedObjects, `objects.${objectId}.containedObjects`) : []
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};
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}
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return validatedObjects;
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}
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/**
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* Validate character definitions
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*/
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static validateCharacters(characters) {
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if (!characters)
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return {}; // Characters are optional
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if (typeof characters !== 'object') {
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throw new Error('Characters must be an object mapping character IDs to character definitions');
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}
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const charactersData = characters;
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const validatedCharacters = {};
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for (const [characterId, characterData] of Object.entries(charactersData)) {
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if (!characterData || typeof characterData !== 'object') {
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throw new Error(`Character ${characterId} must be an object`);
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}
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const character = characterData;
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this.validateRequiredFields(character, ['name', 'description', 'dialogue', 'defaultResponse']);
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validatedCharacters[characterId] = {
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id: characterId,
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name: this.validateString(character.name, `characters.${characterId}.name`),
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description: this.validateString(character.description, `characters.${characterId}.description`),
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dialogue: this.validateDialogue(character.dialogue, characterId),
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inventory: this.validateStringArray(character.inventory || [], `characters.${characterId}.inventory`),
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defaultResponse: this.validateString(character.defaultResponse, `characters.${characterId}.defaultResponse`),
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mood: character.mood ? this.validateString(character.mood, `characters.${characterId}.mood`) : undefined
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};
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}
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return validatedCharacters;
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}
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/**
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* Validate action definitions
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*/
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static validateActions(actions) {
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if (!actions)
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return {}; // Actions are optional
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if (typeof actions !== 'object') {
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throw new Error('Actions must be an object mapping action names to action definitions');
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}
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const actionsData = actions;
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const validatedActions = {};
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for (const [actionName, actionData] of Object.entries(actionsData)) {
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if (!actionData || typeof actionData !== 'object') {
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throw new Error(`Action ${actionName} must be an object`);
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}
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const action = actionData;
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this.validateRequiredFields(action, ['patterns', 'handler']);
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validatedActions[actionName] = {
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name: actionName,
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patterns: this.validateStringArray(action.patterns, `actions.${actionName}.patterns`),
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requiresObject: typeof action.requiresObject === 'boolean' ? action.requiresObject : false,
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requiresTarget: typeof action.requiresTarget === 'boolean' ? action.requiresTarget : false,
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handler: this.validateString(action.handler, `actions.${actionName}.handler`)
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};
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}
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return validatedActions;
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}
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/**
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* Validate initial game state
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*/
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static validateInitialState(initialState) {
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if (!initialState || typeof initialState !== 'object') {
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throw new Error('Initial state must be an object');
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}
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const stateData = initialState;
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this.validateRequiredFields(stateData, ['currentRoomId']);
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return {
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currentRoomId: this.validateString(stateData.currentRoomId, 'initialState.currentRoomId'),
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inventory: this.validateStringArray(stateData.inventory || [], 'initialState.inventory'),
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visitedRooms: this.validateStringArray(stateData.visitedRooms || [], 'initialState.visitedRooms'),
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flags: this.validateFlags(stateData.flags),
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counters: this.validateCounters(stateData.counters)
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};
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}
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/**
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* Validate object states (record of boolean values)
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*/
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static validateObjectStates(states, objectId) {
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if (!states)
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return {};
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if (typeof states !== 'object') {
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throw new Error(`States for object ${objectId} must be an object`);
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}
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const statesData = states;
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const validatedStates = {};
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for (const [stateName, stateValue] of Object.entries(statesData)) {
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if (typeof stateValue !== 'boolean') {
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throw new Error(`State ${stateName} for object ${objectId} must be a boolean value`);
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}
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validatedStates[stateName] = stateValue;
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}
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return validatedStates;
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}
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/**
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* Validate dialogue (record of string values)
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*/
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static validateDialogue(dialogue, characterId) {
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if (!dialogue || typeof dialogue !== 'object') {
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throw new Error(`Dialogue for character ${characterId} must be an object`);
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}
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const dialogueData = dialogue;
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const validatedDialogue = {};
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for (const [topic, response] of Object.entries(dialogueData)) {
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validatedDialogue[topic] = this.validateString(response, `characters.${characterId}.dialogue.${topic}`);
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}
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return validatedDialogue;
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}
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/**
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* Validate flags (record of boolean values)
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*/
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static validateFlags(flags) {
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if (!flags)
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return {};
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if (typeof flags !== 'object') {
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throw new Error('Flags must be an object');
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}
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const flagsData = flags;
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const validatedFlags = {};
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for (const [flagName, flagValue] of Object.entries(flagsData)) {
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if (typeof flagValue !== 'boolean') {
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throw new Error(`Flag ${flagName} must be a boolean value`);
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}
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validatedFlags[flagName] = flagValue;
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}
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return validatedFlags;
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}
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/**
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* Validate counters (record of number values)
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*/
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static validateCounters(counters) {
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if (!counters)
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return {};
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if (typeof counters !== 'object') {
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throw new Error('Counters must be an object');
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}
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const countersData = counters;
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const validatedCounters = {};
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for (const [counterName, counterValue] of Object.entries(countersData)) {
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if (typeof counterValue !== 'number') {
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throw new Error(`Counter ${counterName} must be a numeric value`);
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}
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validatedCounters[counterName] = counterValue;
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}
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return validatedCounters;
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}
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/**
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* Validate that an array of strings is valid
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*/
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static validateStringArray(arr, fieldName) {
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if (!arr)
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return [];
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if (!Array.isArray(arr)) {
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throw new Error(`Field ${fieldName} must be an array`);
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}
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return arr.map((item, index) => {
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if (typeof item !== 'string') {
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throw new Error(`Item at index ${index} in ${fieldName} must be a string`);
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}
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return item;
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});
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}
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/**
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* Validate references between entities
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*/
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static validateReferences(worldModel) {
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const { rooms, objects, characters, initialState } = worldModel;
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// Check that the initial room exists
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if (!rooms[initialState.currentRoomId]) {
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throw new Error(`Initial room ${initialState.currentRoomId} does not exist`);
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}
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// Check room exits
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for (const [roomId, room] of Object.entries(rooms)) {
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for (const exit of room.exits) {
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if (!rooms[exit.targetRoomId]) {
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throw new Error(`Room ${roomId} has an exit to non-existent room ${exit.targetRoomId}`);
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}
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if (exit.keyId && !objects[exit.keyId]) {
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throw new Error(`Room ${roomId} has an exit requiring non-existent key ${exit.keyId}`);
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}
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}
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// Check room objects
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for (const objectId of room.objects) {
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if (!objects[objectId]) {
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throw new Error(`Room ${roomId} contains non-existent object ${objectId}`);
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}
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}
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// Check room characters
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for (const characterId of room.characters) {
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if (!characters[characterId]) {
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throw new Error(`Room ${roomId} contains non-existent character ${characterId}`);
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}
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}
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}
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// Check object containment
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for (const [objectId, object] of Object.entries(objects)) {
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if (object.containedObjects) {
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for (const containedId of object.containedObjects) {
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if (!objects[containedId]) {
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throw new Error(`Object ${objectId} contains non-existent object ${containedId}`);
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}
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}
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}
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}
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// Check character inventory
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for (const [characterId, character] of Object.entries(characters)) {
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for (const objectId of character.inventory) {
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if (!objects[objectId]) {
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throw new Error(`Character ${characterId} has non-existent object ${objectId} in inventory`);
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}
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}
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}
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// Check player inventory
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for (const objectId of initialState.inventory) {
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if (!objects[objectId]) {
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throw new Error(`Initial inventory contains non-existent object ${objectId}`);
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}
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}
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}
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}
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exports.YamlWorldParser = YamlWorldParser;
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//# sourceMappingURL=yaml-parser.js.map
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