vn-engine
Version:
A powerful, flexible TypeScript library for creating visual novels and interactive narratives
2 lines âĸ 67.8 kB
JavaScript
(function(y,h){typeof exports=="object"&&typeof module<"u"?h(exports,require("lodash"),require("js-yaml")):typeof define=="function"&&define.amd?define(["exports","lodash","js-yaml"],h):(y=typeof globalThis<"u"?globalThis:y||self,h(y.VNEngine={},y._,y.yaml))})(this,function(y,h,D){"use strict";function B(r){const e=Object.create(null,{[Symbol.toStringTag]:{value:"Module"}});if(r){for(const t in r)if(t!=="default"){const s=Object.getOwnPropertyDescriptor(r,t);Object.defineProperty(e,t,s.get?s:{enumerable:!0,get:()=>r[t]})}}return e.default=r,Object.freeze(e)}const P=B(D);class R{constructor(e){this.state={currentScene:"",currentInstruction:0,variables:new Map,storyFlags:new Set,choiceHistory:[],...e}}setCurrentScene(e){this.state.currentScene=e}getCurrentScene(){return this.state.currentScene}setCurrentInstruction(e){this.state.currentInstruction=e}getCurrentInstruction(){return this.state.currentInstruction}setStoryFlag(e){this.state.storyFlags.add(e)}clearStoryFlag(e){this.state.storyFlags.delete(e)}hasStoryFlag(e){return this.state.storyFlags.has(e)}setVariable(e,t){this.state.variables.set(e,t)}getVariable(e){return this.state.variables.get(e)}addToVariable(e,t){if(e.includes(".")){const s=e.split("."),n=s[0],i=s.slice(1).join(".");let a=this.getVariable(n);(!a||typeof a!="object")&&(a={});const o=this.getNestedProperty(a,i)||0;this.setNestedProperty(a,i,o+t),this.setVariable(n,a)}else{const s=this.getVariable(e)||0;this.setVariable(e,s+t)}}getNestedProperty(e,t){if(!(!e||!t))return t.split(".").reduce((s,n)=>s&&s[n]!==void 0?s[n]:void 0,e)}setNestedProperty(e,t,s){const n=t.split(".");let i=e;for(let a=0;a<n.length-1;a++)(!i[n[a]]||typeof i[n[a]]!="object")&&(i[n[a]]={}),i=i[n[a]];i[n[n.length-1]]=s}addChoice(e){this.state.choiceHistory.push(e)}getChoiceHistory(){return[...this.state.choiceHistory]}playerChose(e,t){return this.state.choiceHistory.some(s=>s.choiceText===e&&(!t||s.scene===t))}getList(e){const t=this.getVariable(e);return Array.isArray(t)?t:[]}setList(e,t){this.setVariable(e,t)}addToList(e,t){const s=this.getList(e);s.push(t),this.setList(e,s)}addTime(e){const t=this.getVariable("gameTime")||0;this.setVariable("gameTime",t+e),this.setVariable("currentTime",t+e)}getCurrentTime(){return this.getVariable("gameTime")||this.getVariable("currentTime")||0}getState(){return{currentScene:this.state.currentScene,currentInstruction:this.state.currentInstruction,variables:new Map(this.state.variables),storyFlags:new Set(this.state.storyFlags),choiceHistory:[...this.state.choiceHistory]}}serialize(){return{currentScene:this.state.currentScene,currentInstruction:this.state.currentInstruction,variables:Array.from(this.state.variables.entries()),storyFlags:Array.from(this.state.storyFlags),choiceHistory:[...this.state.choiceHistory],schemaVersion:"1.0.0",saveDate:new Date().toISOString()}}deserialize(e){try{this.state={currentScene:e.currentScene||"",currentInstruction:e.currentInstruction||0,variables:new Map(e.variables||[]),storyFlags:new Set(e.storyFlags||[]),choiceHistory:e.choiceHistory||[]}}catch(t){console.error("Failed to deserialize game state:",t),this.state={currentScene:"",currentInstruction:0,variables:new Map,storyFlags:new Set,choiceHistory:[]}}}setBulkVariables(e){try{Object.entries(e).forEach(([t,s])=>{this.setVariable(t,s)})}catch(t){console.error("Error setting bulk variables:",t)}}setBulkFlags(e){try{e.forEach(t=>{typeof t=="string"&&t.length>0&&this.setStoryFlag(t)})}catch(t){console.error("Error setting bulk flags:",t)}}reset(){this.state={currentScene:"",currentInstruction:0,variables:new Map,storyFlags:new Set,choiceHistory:[]}}validateState(){const e=[];return typeof this.state.currentScene!="string"&&e.push("Current scene must be a string"),(typeof this.state.currentInstruction!="number"||this.state.currentInstruction<0)&&e.push("Current instruction must be a non-negative number"),this.state.variables instanceof Map||e.push("Variables must be a Map"),this.state.storyFlags instanceof Set||e.push("Story flags must be a Set"),Array.isArray(this.state.choiceHistory)||e.push("Choice history must be an array"),{valid:e.length===0,errors:e}}}const A=class A{render(e,t){try{let s=e;return s=this.processConditionals(s,t),s=this.processVariables(s,t),s}catch(s){return console.error("Simple template rendering error:",s),`[Template Error: ${s.message}]`}}processConditionals(e,t){return e=e.replace(A.CONDITION_ELSE_REGEX,(s,n,i,a)=>this.evaluateCondition(n.trim(),t)?i:a),e=e.replace(A.CONDITION_REGEX,(s,n,i)=>this.evaluateCondition(n.trim(),t)?i:""),e}processVariables(e,t){return e.replace(A.VARIABLE_REGEX,(s,n)=>{const i=this.evaluateExpression(n.trim(),t);return this.formatValue(i)})}evaluateCondition(e,t){try{const s=e.match(/hasFlag\s*\(\s*['"]([^'"]+)['"]\s*\)/);if(s)return t.computed.hasFlag(s[1]);if(/^[a-zA-Z_][a-zA-Z0-9_.]*$/.test(e)){const o=this.evaluateExpression(e,t);return this.isTruthy(o)}const n=e.match(/^([a-zA-Z_][a-zA-Z0-9_.]*)\s+(eq|ne|gt|lt|gte|lte)\s+(.+)$/);if(n){const[,o,g,l]=n,I=this.evaluateExpression(o,t),he=this.parseValue(l.trim());return this.compareValues(I,g,he)}const i=e.match(/playerChose\s*\(\s*['"]([^'"]+)['"]\s*\)/);if(i)return t.computed.playerChose(i[1]);const a=this.evaluateExpression(e,t);return this.isTruthy(a)}catch(s){return console.warn(`Failed to evaluate condition: ${e}`,s),!1}}evaluateExpression(e,t){const s=e.split(".");let n={...t.variables,...t};for(const i of s)if(n&&typeof n=="object")if(i in n)n=n[i];else{n=void 0;break}else{n=void 0;break}return n}parseValue(e){if(e.startsWith('"')&&e.endsWith('"')||e.startsWith("'")&&e.endsWith("'"))return e.slice(1,-1);if(/^-?\d+$/.test(e))return parseInt(e,10);if(/^-?\d*\.\d+$/.test(e))return parseFloat(e);if(e==="true")return!0;if(e==="false")return!1;if(e==="null")return null;if(e!=="undefined")return e}compareValues(e,t,s){switch(t){case"eq":return e==s;case"ne":return e!=s;case"gt":return Number(e)>Number(s);case"gte":return Number(e)>=Number(s);case"lt":return Number(e)<Number(s);case"lte":return Number(e)<=Number(s);default:return!1}}isTruthy(e){return e==null?!1:typeof e=="boolean"?e:typeof e=="number"?e!==0&&!isNaN(e):typeof e=="string"||Array.isArray(e)?e.length>0:typeof e=="object"?Object.keys(e).length>0:!!e}formatValue(e){return e==null?"":typeof e=="string"?e:typeof e=="number"||typeof e=="boolean"?e.toString():Array.isArray(e)?e.join(", "):typeof e=="object"?JSON.stringify(e):String(e)}getSupportedFeatures(){return{variables:!0,conditionals:!0,helpers:!1,loops:!1,partials:!1}}getEngineType(){return"simple"}};A.VARIABLE_REGEX=/\{\{([^}]+)\}\}/g,A.CONDITION_REGEX=/\{\{#if\s+([^}]+)\}\}(.*?)\{\{\/if\}\}/gs,A.CONDITION_ELSE_REGEX=/\{\{#if\s+([^}]+)\}\}(.*?)\{\{else\}\}(.*?)\{\{\/if\}\}/gs;let b=A;function $(r){return h.isArrayLike(r)}const m={first(r,e){if($(r))return typeof e=="number"?h.take(r,e):h.head(r)},last(r,e){if($(r))return typeof e=="number"?h.takeRight(r,e):h.last(r)},length(r){return h.size(r)},includes(r,e){return h.includes(r,e)},isEmpty(r){return h.isEmpty(r)},filter(r,e){return h.filter(r,e)},find(r,e){return h.find(r,e)},where(r,e){return h.filter(r,e)},map(r,e){return h.map(r,e)},pluck(r,e){return h.map(r,e)},join(r,e=","){return Array.isArray(r)?r.join(e):""},groupBy(r,e){return h.groupBy(r,e)},chunk(r,e){return h.chunk(r,Math.max(1,e))},unique(r){return h.uniq(r)},shuffle(r){return h.shuffle([...r])},slice(r,e,t){return h.slice(r,e,t)},take(r,e){return h.take(r,Math.max(0,e))},sample(r){return h.sample(r)},sampleSize(r,e){return h.sampleSize(r,Math.max(0,e))},flatten(r){return h.flatten(r)},reverse(r){return[...r].reverse()},concat(...r){return h.concat([],...r)},compact(r){return h.compact(r)},without(r,...e){return h.without(r,...e)},randomChoice(r){if(!(!Array.isArray(r)||r.length===0))return r[Math.floor(Math.random()*r.length)]},weightedChoice(r,e){if(!Array.isArray(r)||!Array.isArray(e)||r.length!==e.length)return;const t=e.reduce((n,i)=>n+Math.max(0,i),0);if(t===0)return;let s=Math.random()*t;for(let n=0;n<r.length;n++)if(s-=Math.max(0,e[n]),s<=0)return r[n];return r[r.length-1]},cycleNext(r,e){if(!Array.isArray(r)||r.length===0)return;const t=(e+1)%r.length;return r[t]},findByProperty(r,e,t){return h.find(r,{[e]:t})}};function 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m.without(e,...s)}),r.registerHelper("randomChoice",e=>m.randomChoice(e)),r.registerHelper("weightedChoice",(e,t)=>m.weightedChoice(e,t)),r.registerHelper("cycleNext",(e,t)=>m.cycleNext(e,t)),r.registerHelper("findByProperty",(e,t,s)=>m.findByProperty(e,t,s)),r.registerHelper("array",(...e)=>(e.pop(),e)),r.registerHelper("range",(e,t,s)=>h.range(e,t,s)),r.registerHelper("times",function(e,t){let s="";for(let n=0;n<e;n++)s+=t.fn({index:n,first:n===0,last:n===e-1});return s})}function T(r){return r==null?!1:typeof r=="boolean"?r:typeof r=="number"?r!==0&&!isNaN(r):typeof r=="string"||Array.isArray(r)?r.length>0:typeof r=="object"?Object.keys(r).length>0:!!r}function C(r,e=0){const t=Number(r);return isNaN(t)?e:t}const p={eq(r,e){return r===e},ne(r,e){return r!==e},gt(r,e){return C(r)>C(e)},gte(r,e){return C(r)>=C(e)},lt(r,e){return C(r)<C(e)},lte(r,e){return C(r)<=C(e)},and(...r){return r.every(T)},or(...r){return r.some(T)},not(r){return!T(r)},contains(r,e){return 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T(r)?e:t},coalesce(...r){for(const e of r)if(e!=null)return e},defaultTo(r,e){return r!=null&&r!==""?r:e}};function H(r){return function(...e){const t=e[e.length-1],s=r(...e.slice(0,-1));return t.fn?s?t.fn(this):t.inverse(this):s}}function _(r){r.registerHelper("eq",H(p.eq)),r.registerHelper("ne",H(p.ne)),r.registerHelper("gt",H(p.gt)),r.registerHelper("gte",H(p.gte)),r.registerHelper("lt",H(p.lt)),r.registerHelper("lte",H(p.lte)),r.registerHelper("and",H(p.and)),r.registerHelper("or",H(p.or)),r.registerHelper("not",H(p.not)),r.registerHelper("contains",H(p.contains)),r.registerHelper("isEmpty",H(p.isEmpty)),r.registerHelper("isString",e=>p.isString(e)),r.registerHelper("isNumber",e=>p.isNumber(e)),r.registerHelper("isArray",e=>p.isArray(e)),r.registerHelper("isObject",e=>p.isObject(e)),r.registerHelper("isBoolean",e=>p.isBoolean(e)),r.registerHelper("compare",function(e,t,s,n){const i=p.compare(e,t,s);return n.fn?i?n.fn(this):n.inverse(this):i}),r.registerHelper("between",function(e,t,s,n){const i=p.between(e,t,s);return n.fn?i?n.fn(this):n.inverse(this):i}),r.registerHelper("ifx",p.ifx),r.registerHelper("ternary",p.ifx),r.registerHelper("coalesce",function(...e){return e.pop(),p.coalesce(...e)}),r.registerHelper("default",function(...e){return e.pop(),p.defaultTo(e[0],e[1])}),r.registerHelper("eqw",function(e,t,s){const n=e==t;return s.fn?n?s.fn(this):s.inverse(this):n}),r.registerHelper("neqw",function(e,t,s){const n=e!=t;return s.fn?n?s.fn(this):s.inverse(this):n})}function c(r,e=0){const t=Number(r);return isNaN(t)||!isFinite(t)?e:t}function k(r){return Array.isArray(r)?r.map(e=>c(e)).filter(e=>!isNaN(e)):[]}const f={add(r,e){return c(r)+c(e)},subtract(r,e){return c(r)-c(e)},multiply(r,e){return c(r)*c(e)},divide(r,e){const t=c(e);return t===0?0:c(r)/t},remainder(r,e){const t=c(e);return t===0?0:c(r)%t},abs(r){return Math.abs(c(r))},min(...r){const 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t.length===0?(this.currentInstructionIndex++,this.gameState.setCurrentInstruction(this.currentInstructionIndex),this.executeCurrentInstruction()):(this.pendingChoices=t,{type:"show_choices",content:e.text?this.renderTemplate(e.text):void 0,speaker:e.speaker?this.renderTemplate(e.speaker):void 0,choices:t.map(s=>({...s,text:this.renderTemplate(s.text)}))})}return e.text?{type:"display_dialogue",content:this.renderTemplate(e.text),speaker:e.speaker?this.renderTemplate(e.speaker):void 0,canContinue:!0}:(this.currentInstructionIndex++,this.gameState.setCurrentInstruction(this.currentInstructionIndex),this.executeCurrentInstruction())}executeActionInstruction(e){return this.executeActions(e.actions),this.currentInstructionIndex++,this.gameState.setCurrentInstruction(this.currentInstructionIndex),this.executeCurrentInstruction()}executeConditional(e){const s=this.evaluateCondition(e.condition)?e.then:e.else;if(!s||s.length===0)return this.currentInstructionIndex++,this.gameState.setCurrentInstruction(this.currentInstructionIndex),this.executeCurrentInstruction();const n=this.executeInstruction(s[0]);if(s.length>1)for(let i=1;i<s.length;i++)this.executeInstruction(s[i]);return n.type==="display_dialogue"&&n.canContinue?n:(this.currentInstructionIndex++,this.gameState.setCurrentInstruction(this.currentInstructionIndex),this.executeCurrentInstruction())}executeJump(e){const t=this.renderTemplate(e.target);return this.startScene(t)}executeActions(e){e.forEach(t=>this.executeAction(t))}executeAction(e){try{switch(e.type){case"setVar":const t=this.renderTemplate(e.key.toString()),s=this.renderActionValue(e.value);this.gameState.setVariable(t,s);break;case"addVar":const n=this.renderTemplate(e.key.toString()),i=this.renderActionValue(e.value);this.gameState.addToVariable(n,i);break;case"setFlag":const a=this.renderTemplate(e.flag.toString());this.gameState.setStoryFlag(a);break;case"clearFlag":const o=this.renderTemplate(e.flag.toString());this.gameState.clearStoryFlag(o);break;case"addToList":const g=this.renderTemplate(e.list.toString()),l=this.renderActionValue(e.item);this.gameState.addToList(g,l);break;case"addTime":const I=this.renderActionValue(e.minutes);this.gameState.addTime(Number(I));break;case"helper":this.executeHelperAction(e);break;default:console.warn(`Unknown action type: ${e.type}`)}}catch(t){console.error(`Error executing action ${e.type}:`,t)}}renderActionValue(e){if(typeof e=="string"){if(e.includes("{{")&&e.includes("}}")){const t=this.renderTemplate(e);return/^\-?\d+(\.\d+)?$/.test(t)?Number(t):t==="true"?!0:t==="false"?!1:t}return e}return e}executeHelperAction(e){var a;const{helper:t}=e,s=((a=e.args)==null?void 0:a.map(o=>this.renderActionValue(o)))||[],n=e.result?this.renderTemplate(e.result.toString()):null,i=this.callHelper(t,s);n&&i!==void 0&&this.gameState.setVariable(n,i)}callHelper(e,t){const s=e.split(".");if(s.length!==2)throw new Error(`Invalid helper reference: ${e}`);const[n,i]=s,a=j[n];if(!a)throw new Error(`Helper category not found: ${n}`);const o=a[i];if(!o||typeof o!="function")throw new Error(`Helper method not found: ${e}`);return o(...t)}filterAvailableChoices(e){return e.filter(t=>t.condition?this.evaluateCondition(t.condition):!0)}evaluateCondition(e){try{return this.renderTemplate(e)==="true"}catch(t){return console.error("Condition evaluation error:",t),!1}}renderTemplate(e){try{const t=this.createTemplateContext();return this.templateManager.render(e,t)}catch(t){return console.error("Template rendering error:",t),e}}createTemplateContext(){const e=this.gameState.getState(),t=Object.fromEntries(e.variables.entries()),s=Array.from(e.storyFlags);return{...t,storyFlags:s,variables:t,choiceHistory:e.choiceHistory,gameTime:this.gameState.getCurrentTime(),computed:{hasFlag:n=>this.gameState.hasStoryFlag(n),getVar:(n,i="")=>{const a=this.getNestedProperty(t,n);return a!==void 0?a:i},playerChose:(n,i)=>this.gameState.playerChose(n,i)}}}getNestedProperty(e,t){if(!(!e||!t))return t.split(".").reduce((s,n)=>s==null?void 0:s[n],e)}}class N extends Error{constructor(e,t,s){super(e),this.code=t,this.context=s,this.name="VNEngineError"}}class ee extends N{constructor(e,t,s,n){super(e,"ACTION_VALIDATION_ERROR",{invalidAction:t,suggestion:s,sourceLocation:n}),this.invalidAction=t,this.suggestion=s,this.sourceLocation=n}}class E extends N{constructor(e,t){super(e,"SCRIPT_PARSE_ERROR",{sourceLocation:t}),this.sourceLocation=t}}class te extends N{constructor(e,t,s){super(e,"TEMPLATE_RENDER_ERROR",{template:t,originalError:s}),this.template=t,this.originalError=s}}class L{parse(e,t="script.yaml"){try{const s=P.load(e);if(!s||typeof s!="object")throw new E("Invalid YAML format",{file:t,line:1,scene:"root"});const n=[];for(const[i,a]of Object.entries(s)){const o=this.parseScene(i,a,t);n.push(o)}return n}catch(s){throw s instanceof E?s:new E(`Failed to parse script: ${s.message}`,{file:t,line:0,scene:"root"})}}parseScene(e,t,s){if(!Array.isArray(t))throw new E(`Scene "${e}" must be an array of instructions`,{file:s,scene:e,line:1});const n=[];return t.forEach((i,a)=>{const o={file:s,line:a+1,scene:e},g=this.parseInstruction(i,o);n.push(g)}),{name:e,instructions:n}}parseInstruction(e,t){if(typeof e=="string")return{type:"dialogue",text:e,_sourceLocation:t};if(typeof e=="object"&&e!==null){if(e.action||e.actions)return{type:"action",actions:Array.isArray(e.actions)?e.actions:[e.action],_sourceLocation:t};if(e.if)return{type:"conditional",condition:e.if,then:Array.isArray(e.then)?e.then.map(n=>this.parseInstruction(n,t)):[this.parseInstruction(e.then,t)],else:e.else?Array.isArray(e.else)?e.else.map(n=>this.parseInstruction(n,t)):[this.parseInstruction(e.else,t)]:void 0,_sourceLocation:t};if(e.goto||e.jump)return{type:"jump",target:e.goto||e.jump,_sourceLocation:t};if(e.say||e.text||e.speaker||e.choices||e.choice)return{type:"dialogue",speaker:e.speaker,text:e.say||e.text,actions:e.actions,choices:e.choices||e.choice,_sourceLocation:t}}throw new E("Invalid instruction format",t)}}class re{constructor(){this.listeners={}}on(e,t){return this.listeners[e]||(this.listeners[e]=[]),this.listeners[e].push(t),()=>{const s=this.listeners[e];if(s){const n=s.indexOf(t);n>-1&&s.splice(n,1)}}}emit(e,t){const s=this.listeners[e];s&&s.forEach(n=>{try{n(t)}catch(i){console.error(`Error in ${String(e)} listener:`,i)}})}removeAllListeners(){this.listeners={}}}class se{constructor(e){this.gameState=e}validateSceneConflicts(e,t,s){const n=new Set(e.map(l=>l.name)),i=t.map(l=>l.name),a=new Set(s.allowOverwrite||[]),o=i.filter(l=>n.has(l)),g=s.mode==="replace"?o.filter(l=>!a.has(l)):o;return{hasConflicts:o.length>0,conflicts:o,unauthorizedOverwrites:g}}validateSceneReferences(e){const t=new Set(e.map(a=>a.name)),s=[],n=[],i=[];for(const a of e){const o=this.validateSceneInstructions(a.instructions,t);(o.invalidJumps.length>0||o.invalidChoices.length>0)&&(i.push(a.name),s.push(...o.invalidJumps),n.push(...o.invalidChoices))}return{valid:s.length===0&&n.length===0,invalidJumpTargets:[...new Set(s)],invalidChoiceTargets:[...new Set(n)],affectedScenes:[...new Set(i)]}}validateCurrentState(e){if(!this.gameState)return{valid:!0,issues:[]};const t=[],s=new Set(e.map(i=>i.name)),n=this.gameState.getCurrentScene();if(n&&!s.has(n)&&t.push(`Current scene '${n}' will no longer exist after upgrade`),n&&s.has(n)){const i=e.find(o=>o.name===n),a=this.gameState.getCurrentInstruction();i&&a>=i.instructions.length&&t.push(`Current instruction index ${a} exceeds new scene length ${i.instructions.length}`)}return{valid:t.length===0,issues:t}}createUpgradeError(e,t,s){var o,g,l;const n=[],i={};if(e.unauthorizedOverwrites.length>0&&(n.push(`Cannot overwrite scenes: ${e.unauthorizedOverwrites.join(", ")}`),i.unauthorizedOverwrites=e.unauthorizedOverwrites),t.valid||(t.invalidJumpTargets.length>0&&(n.push(`Invalid jump targets: ${t.invalidJumpTargets.join(", ")}`),i.invalidReferences=t.invalidJumpTargets),t.invalidChoiceTargets.length>0&&(n.push(`Invalid choice targets: ${t.invalidChoiceTargets.join(", ")}`),i.invalidReferences=[...i.invalidReferences||[],...t.invalidChoiceTargets])),s.valid||(n.push(`Current game state would become invalid: ${s.issues.join(", ")}`),i.affectedState=s.issues),n.length===0)return null;let a="SCENE_CONFLICT";return(o=i.unauthorizedOverwrites)!=null&&o.length?a="UNAUTHORIZED_OVERWRITE":(g=i.invalidReferences)!=null&&g.length?a="INVALID_REFERENCE":(l=i.affectedState)!=null&&l.length&&(a="STATE_INVALID"),{code:a,message:n.join("; "),details:i}}validateSceneInstructions(e,t){const s=[],n=[];for(const i of e)switch(i.type){case"jump":const a=i;t.has(a.target)||s.push(a.target);break;case"dialogue":const o=i;if(o.choices)for(const l of o.choices)l.goto&&!t.has(l.goto)&&n.push(l.goto);break;case"conditional":const g=i;if(g.then){const l=this.validateSceneInstructions(g.then,t);s.push(...l.invalidJumps),n.push(...l.invalidChoices)}if(g.else){const l=this.validateSceneInstructions(g.else,t);s.push(...l.invalidJumps),n.push(...l.invalidChoices)}break}return{invalidJumps:s,invalidChoices:n}}generateWarnings(e,t,s){const n=[];if(s.namespace){const a=t.map(l=>`${s.namespace}_${l.name}`),o=new Set(e.map(l=>l.name)),g=a.filter(l=>o.has(l));g.length>0&&n.push(`Namespaced scenes still conflict with existing scenes: ${g.join(", ")}`)}t.length>50&&n.push(`Adding ${t.length} scenes - this is a large upgrade`);const i=e.length+t.length;return i>200&&n.push(`Total scenes after upgrade: ${i} - consider performance impact`),n}}class ne{constructor(e,t){this.gameState=e,this.scriptEngine=t}backup(e){return{scenes:this.deepCloneScenes(e),currentScene:this.gameState.getCurrentScene(),currentInstruction:this.gameState.getCurrentInstruction(),gameState:this.gameState.serialize(),timestamp:Date.now()}}restore(e){try{this.scriptEngine.loadScenes(e.scenes),this.gameState.deserialize(e.gameState),this.gameState.setCurrentScene(e.currentScene),this.gameState.setCurrentInstruction(e.currentInstruction)}catch(t){throw console.error("Failed to restore state from backup:",t),new Error(`State restoration failed: ${t instanceof Error?t.message:"Unknown error"}`)}}validateCurrentPosition(e){const t=this.gameState.getCurrentScene(),s=this.gameState.getCurrentInstruction();if(!t)return{valid:!0};const n=e.find(i=>i.name===t);return n?s>=n.instructions.length?{valid:!1,reason:`Current instruction index ${s} exceeds scene length ${n.instructions.length}`}:{valid:!0}:{valid:!1,reason:`Current scene '${t}' no longer exists`}}restoreExecutionState(e){const t=this.validateCurrentPosition(e);if(!t.valid)return{success:!1,message:t.reason};try{return this.scriptEngine.loadScenes(e),{success:!0}}catch(s){return{success:!1,message:`Failed to load new scenes: ${s instanceof Error?s.message:"Unknown error"}`}}}validateBackup(e){const t=[];(!e.scenes||!Array.isArray(e.scenes))&&t.push("Backup scenes are missing or invalid"),e.gameState||t.push("Backup game state is missing"),typeof e.currentScene!="string"&&t.push("Backup current scene is invalid"),typeof e.currentInstruction!="number"&&t.push("Backup current instruction is invalid"),(!e.timestamp||typeof e.timestamp!="number")&&t.push("Backup timestamp is missing or invalid");const s=Date.now()-60*60*1e3;return e.timestamp<s&&t.push("Backup is older than 1 hour and may be stale"),{valid:t.length===0,issues:t}}getCurrentContext(){const e=this.gameState.getState();return{scene:e.currentScene,instruction:e.currentInstruction,hasState:e.variables.size>0||e.storyFlags.size>0,stateSize:e.variables.size+e.storyFlags.size+e.choiceHistory.length}}deepCloneScenes(e){try{return JSON.parse(JSON.stringify(e))}catch(t){return console.error("Failed to clone scenes, using shallow copy:",t),e.map(s=>({...s}))}}createQuickBackup(){return{currentScene:this.gameState.getCurrentScene(),currentInstruction:this.gameState.getCurrentInstruction(),timestamp:Date.now()}}restoreQuickBackup(e){this.gameState.setCurrentScene(e.currentScene),this.gameState.setCurrentInstruction(e.currentInstruction)}}class ie{constructor(e,t,s){this.gameState=e,this.scriptEngine=t,this.scriptParser=s,this.validator=new se(e),this.statePreserver=new ne(e,t)}upgrade(e,t,s={}){const n={mode:"additive",namespace:"",allowOverwrite:[],validateS