FNF Editor Mod

Purpose & User Intent: This tool targets Friday Night Funkin' mod developers and advanced players who need a repeatable workflow to assemble, validate, and package mods. It solves the problem of fragmented assets, ad-hoc scripts, and inconsistent folder structures by providing a guided, modular editor that binds levels, events, assets, and code into a single, testable mod package. Typical users include solo creators, mod teams, and testing communities who aim to produce clean, distributable builds for multiple game revisions. Assumptions: users have baseline familiarity with modding concepts and file-system access.
Core Logic & Features: Domain capabilities include modular project structure, dependency tracking, and versioned export. Required features are: mod skeleton, component inventory (levels, assets, scripts), reference validation, and a dependable export packager. Optional/advanced features include differential patches, multi-version packaging, and hooks for external asset repositories. The tool enforces constraints: assets must conform to supported formats, scripts must adhere to engine syntax, and version compatibility must be verified against the target game version. It flags missing assets, circular references, and invalid dependencies, and provides deterministic export ordering to support reproducible builds.
Inputs & Outputs: Inputs include mod_name (string), game_version (string), assets (list), levels (list), scripts (list), and export_options (object). Required inputs are mod_name and game_version. Outputs consist of a mod_package (zip or folder), a manifest.json, and a build_log. Outputs are deterministic and include a content hash for integrity.
Algorithms & Calculations: A manifest builder compiles components, resolves dependencies, computes asset hashes, and validates cross-references. It applies domain rules to ensure version compatibility, and calculates a stable export sequence to avoid race conditions during packaging.
Error & Edge Cases: Handles missing required inputs, unsupported game versions, and missing assets. If external data is unavailable, it falls back to local defaults and records the issue in the build_log. On critical errors, export is aborted with a detailed report of failed components.
Industry/Region & Localization: Aligns to US/EU-era game mods standards; uses standard file paths and asset naming conventions. Localization is supported by including per-language scripts and assets when provided.