Repository Analysis

FyroxEngine/Fyrox

3D and 2D game engine written in Rust

5.9 Low AI signal View on GitHub

Analysis Overview

This report presents the forensic synthetic code analysis of FyroxEngine/Fyrox, a Rust project with 9,476 GitHub stars. SynthScan v2.0 examined 289,178 lines of code across 718 source files, recording 1563 pattern matches distributed across 6 syntactic categories. The overall adjusted score of 5.9 places this repository in the Low AI signal band.

The scanner applied 160+ deterministic lexical heuristics, multi-line block detectors, abstract syntax tree depth profilers, and a cross-file Jaccard similarity matrix to construct a statistically normalised synthetic code estimate. All matches are individually weighted by severity coefficient and contextual multiplier before summation, and the resulting headline score is temporally discounted to account for the repository's development history relative to the commercial emergence of large language model coding tooling (November 2022 onward).

5.9
Adjusted Score
5.9
Raw Score
100%
Time Factor
2026-08-01
Last Push
9.5K
Stars
Rust
Language
289.2K
Lines of Code
718
Files
1.6K
Pattern Hits
2026-08-02
Scan Date
0.00
HC Hit Rate

What These Metrics Mean

Adjusted Score
Primary synthetic code indicator. Raw score normalised per 1,000 lines of code and multiplied by the temporal discount factor. This is the definitive comparative metric — use it to rank repositories by AI authorship density.
Raw Score
The unmodified sum of all severity-weighted, context-multiplied pattern match scores before temporal discounting. Reflects the absolute signal strength independent of when the repository was last active.
Time Factor
The temporal discount multiplier (0–100%) applied to the raw score. Repositories last updated before ChatGPT's launch (Nov 2022) receive a 5% factor. Full signal is only assigned to repositories active in the post-adoption era (Jan 2024+).
Pattern Hits
Total count of individual pattern matches across all files and categories. A high hit count with a low score may indicate a very large codebase with isolated AI snippets; a low count with a high score indicates dense, concentrated AI signatures.
HC Hit Rate
High+Critical pattern hits per file, averaged across the repository. This orthogonal signal catches repositories where a few files are densely packed with high-severity AI tells — a strong indicator even when the normalised score appears moderate due to codebase size.
Lines of Code / Files
Total lines and files analysed. The scanner examines 94 file extensions. These denominators are used to normalise the score, enabling fair comparison between repositories of vastly different sizes.

Score History

Longitudinal tracking requires multiple scan runs. Once this repository is re-scanned after new commits land, this chart will visualise how the synthetic code signal evolves over time — enabling you to detect whether AI authorship is growing, stabilising, or being actively corrected by human engineers.

No multi-scan history yet — run the scanner again to build trend data.

Severity Breakdown

Classifies detected patterns by their diagnostic confidence and structural impact. CRITICAL patterns (coefficient 10) represent definitive synthetic signatures — hallucinated imports, explicit LLM attribution metadata — virtually never produced by human authors. HIGH (5) indicates strong structural tells such as cross-file repetition or cross-linguistic idioms. MEDIUM (2) covers recognisable conversational padding and AI-specific vocabulary. LOW (1) captures subtle indicators like tautological comments and generic boilerplate that require density to carry independent signal.

CRITICAL 0HIGH 2MEDIUM 48LOW 1513

Directory Score Breakdown

This horizontal bar chart decomposes the repository's raw synthetic code score by top-level directory, allowing you to pinpoint precisely which modules or components carry the highest AI authorship density. Directories with disproportionately high scores relative to their size warrant targeted manual review: concentrated AI signatures often trace back to mass-generated configuration layers, auto-ported test suites, LLM-scaffolded boilerplate classes, or entire subsystems authored under heavy copilot assistance. Use this view to prioritise your human code-review effort.

Pattern Findings

The scanner identified 1563 distinct pattern matches across 6 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a statistically significant AI authorship indicator. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.

Reading the findings table: The Severity column indicates the diagnostic confidence level (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — comment-context matches receive a ×1.5 weight because LLMs systematically over-annotate. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier as dense clusters constitute far stronger evidence of synthetic authorship than isolated hits.

Over-Commented Block1511 hits · 1493 pts
SeverityFileLineSnippetContext
LOWARCHITECTURE.md321COMMENT
LOWfyrox/src/lib.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/thumb.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/thumb.rs41/// difference between its current position and its initial position. The user is responsible forCOMMENT
LOWfyrox-ui/src/thumb.rs61/// ThumbBuilder::new(COMMENT
LOWfyrox-ui/src/thumb.rs81/// match msg {COMMENT
LOWfyrox-ui/src/message.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/message.rs121pub enum DeliveryMode {COMMENT
LOWfyrox-ui/src/message.rs141/// and reliable mechanism that effectively decouples widgets from each other. There is no directCOMMENT
LOWfyrox-ui/src/message.rs161/// UserInterface, message::MessageData,COMMENT
LOWfyrox-ui/src/message.rs181/// ```COMMENT
LOWfyrox-ui/src/message.rs381 /// ```rustCOMMENT
LOWfyrox-ui/src/message.rs401 /// # let widget_handle = Handle::<UiNode>::NONE;COMMENT
LOWfyrox-ui/src/message.rs421 }COMMENT
LOWfyrox-ui/src/message.rs441 ///COMMENT
LOWfyrox-ui/src/message.rs521}COMMENT
LOWfyrox-ui/src/message.rs561 Ended,COMMENT
LOWfyrox-ui/src/message.rs581 /// The maximum possible force for a touch.COMMENT
LOWfyrox-ui/src/message.rs721)]COMMENT
LOWfyrox-ui/src/message.rs761 Digit8,COMMENT
LOWfyrox-ui/src/message.rs801 /// <kbd>m</kbd> on a US keyboard.COMMENT
LOWfyrox-ui/src/message.rs821 KeyV,COMMENT
LOWfyrox-ui/src/message.rs841 Semicolon,COMMENT
LOWfyrox-ui/src/message.rs861 /// <kbd>Enter</kbd> or <kbd>↵</kbd>. Labeled <kbd>Return</kbd> on Apple keyboards.COMMENT
LOWfyrox-ui/src/message.rs881 /// Japanese (Mac keyboard): <kbd>か</kbd> (kana)COMMENT
LOWfyrox-ui/src/message.rs921 /// On the Mac, this is used for the numpad <kbd>Clear</kbd> key.COMMENT
LOWfyrox-ui/src/message.rs941 Numpad8,COMMENT
LOWfyrox-ui/src/message.rs981 /// <kbd>*</kbd> on a keyboard. For use with numpads that provide mathematicalCOMMENT
LOWfyrox-ui/src/message.rs1001 Escape,COMMENT
LOWfyrox-ui/src/message.rs1061 Find,COMMENT
LOWfyrox-ui/src/message.rs1081 F2,COMMENT
LOWfyrox-ui/src/message.rs1101 /// Usually found at the top of the keyboard.COMMENT
LOWfyrox-ui/src/message.rs1121 /// General-purpose function key.COMMENT
LOWfyrox-ui/src/message.rs1141 F22,COMMENT
LOWfyrox-ui/src/formatted_text.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/formatted_text.rs261pub struct FormattedText {COMMENT
LOWfyrox-ui/src/rect.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/rect.rs61/// ## ExampleCOMMENT
LOWfyrox-ui/src/rect.rs81/// ## ValueCOMMENT
LOWfyrox-ui/src/rect.rs101/// # use fyrox_ui::{COMMENT
LOWfyrox-ui/src/popup.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/popup.rs121 | Placement::Center(target)COMMENT
LOWfyrox-ui/src/popup.rs141/// fn create_popup_with_button(ctx: &mut BuildContext) -> Handle<Popup> {COMMENT
LOWfyrox-ui/src/popup.rs161/// # widget::WidgetBuilder,COMMENT
LOWfyrox-ui/src/popup.rs181///COMMENT
LOWfyrox-ui/src/popup.rs201/// ButtonBuilder::new(WidgetBuilder::new())COMMENT
LOWfyrox-ui/src/popup.rs221///COMMENT
LOWfyrox-ui/src/popup.rs241/// .build(&mut ui.build_ctx()),COMMENT
LOWfyrox-ui/src/popup.rs261///COMMENT
LOWfyrox-ui/src/popup.rs281/// .stays_open(true)COMMENT
LOWfyrox-ui/src/test.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/scroll_bar.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/scroll_bar.rs61 MinValue(f32),COMMENT
LOWfyrox-ui/src/scroll_bar.rs81/// # use fyrox_ui::{COMMENT
LOWfyrox-ui/src/scroll_bar.rs101/// # core::pool::Handle,COMMENT
LOWfyrox-ui/src/scroll_bar.rs121///COMMENT
LOWfyrox-ui/src/key.rs1// Copyright (c) 2019-present Dmitry Stepanov and Fyrox Engine contributors.COMMENT
LOWfyrox-ui/src/key.rs161///COMMENT
LOWfyrox-ui/src/key.rs181/// },COMMENT
LOWfyrox-ui/src/key.rs381///COMMENT
1451 more matches not shown…
Decorative Section Separators43 hits · 178 pts
SeverityFileLineSnippetContext
MEDIUMfyrox-ui/src/lib.rs2280 /// ├─────────────────────────────◄───────────────────────────┐ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2283 /// ┌─────────▼─────────┐ ┌─────────────────────────────────────┐ │ ┌───────┼──────┐COMMENT
MEDIUMfyrox-ui/src/lib.rs2285 /// │Queue │ │ Widget Sub-Tree │ │ ├──────────────┤COMMENT
MEDIUMfyrox-ui/src/lib.rs2286 /// │ ┌───────────┐ │ │ │ └────┼ Sync Only? │COMMENT
MEDIUMfyrox-ui/src/lib.rs2287 /// │ │ Message │ │ │ Bubble Routing │ └───────▲──────┘COMMENT
MEDIUMfyrox-ui/src/lib.rs2288 /// │ └───────────┘ │ │ ┌─────────────────────────────────┐ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2289 /// │ ┌───────────┐ │ │ │ Root::handle_routed_message ├─┼─────────►─────────┤COMMENT
MEDIUMfyrox-ui/src/lib.rs2290 /// │ │ Message │ │ │ └────────────────▲────────────────┘ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2291 /// │ └───────────┘ │ │ ... │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2292 /// │ ... │ │ ┌────────────────┼────────────────┐ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2293 /// │ ┌───────────┐ │ │ │ Parent::handle_routed_message │ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2294 /// │ │ Message │ │ │ └────────────────▲────────────────┘ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2295 /// │ └───────────┘ │ │ │ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2296 /// │ ┌───────────┐ │ │ ┌────────────────┼────────────────┐ │ Direct Routing │COMMENT
MEDIUMfyrox-ui/src/lib.rs2297 /// │ │ Message │ │ │ │ Widget::handle_routed_message │ │ ┌────────────────┼────────────────┐COMMENT
MEDIUMfyrox-ui/src/lib.rs2298 /// │ └─────────┬─┘ │ │ └────────────────▲────────────────┘ │ │ Widget::handle_routed_message │COMMENT
MEDIUMfyrox-ui/src/lib.rs2299 /// └─────────────┼─────┘ └──────────────────┼──────────────────┘ └────────────────▲────────────────┘COMMENT
MEDIUMfyrox-ui/src/lib.rs2303 /// ┌─────────────┼───────────────┐ ┌──────────────────┐ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2305 /// │ ┌───────────▼─────────────┐ │ ├──────────────────┤ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2306 /// │ │ Widget::preview_message │ │ │ Direct Routing? ├───────────────────────────┘COMMENT
MEDIUMfyrox-ui/src/lib.rs2307 /// │ └───────────┬─────────────┘ │ └──────────────────┘COMMENT
MEDIUMfyrox-ui/src/lib.rs2309 /// │ ┌───────────▼─────────────┐ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2311 /// │ └───────────┬─────────────┘ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2313 /// │ ┌───────────▼─────────────┐ │ │COMMENT
MEDIUMfyrox-ui/src/lib.rs2314 /// │ │ Widget::preview_message─┼─┼───────────┘COMMENT
MEDIUMfyrox-ui/src/lib.rs2315 /// │ └─────────────────────────┘ │ To destinationCOMMENT
MEDIUMfyrox-ui/src/lib.rs2316 /// └─────────────────────────────┘ widgetCOMMENT
MEDIUMfyrox-sound/src/bus.rs235/// ┌────────────┐ ┌────────────┐COMMENT
MEDIUMfyrox-sound/src/bus.rs237/// │ Source1 ├────────────┐ ┌──────────┤ Source2 │COMMENT
MEDIUMfyrox-sound/src/bus.rs239/// └────────────┘ │ │ └────────────┘COMMENT
MEDIUMfyrox-sound/src/bus.rs241/// ┌────────────┐ ┌────────────┐ ┌────────────┐ ┌────────────┐COMMENT
MEDIUMfyrox-sound/src/bus.rs243/// │ Source3 ├─────►│ Bus1 │ │ BusN │◄───┤ Source4 │COMMENT
MEDIUMfyrox-sound/src/bus.rs244/// │ │ ├────────────┤ ├────────────┤ │ │COMMENT
MEDIUMfyrox-sound/src/bus.rs245/// └────────────┘ │ │ │ │ └────────────┘COMMENT
MEDIUMfyrox-sound/src/bus.rs246/// │ Effect1 │ │ ┌───────────┐ │ Effect1 │ │COMMENT
MEDIUMfyrox-sound/src/bus.rs250/// │ EffectN ▼ │ └─────┬─────┘ │ EffectN ▼ │COMMENT
MEDIUMfyrox-sound/src/bus.rs252/// └─────┬──────┘ │ └─────┬──────┘COMMENT
MEDIUMfyrox-sound/src/bus.rs255/// │ ┌────────────┐ │COMMENT
MEDIUMfyrox-sound/src/bus.rs257/// └─────────►│ Primary │◄──────┘COMMENT
MEDIUMfyrox-sound/src/bus.rs258/// ├────────────┤COMMENT
MEDIUMfyrox-sound/src/bus.rs266/// └─────┬──────┘COMMENT
MEDIUMfyrox-sound/src/bus.rs270/// ┌───────────────────────────┐COMMENT
MEDIUMfyrox-sound/src/bus.rs274/// └───────────────────────────┘COMMENT
Synthetic Comment Markers2 hits · 15 pts
SeverityFileLineSnippetContext
HIGHfyrox-impl/src/scene/graph/mod.rs562 /// new local position of the given node so that its global position will be as requested.COMMENT
HIGHfyrox-impl/src/scene/graph/mod.rs600 /// new local rotation of the given node so that its global rotation will be as requested.COMMENT
AI Slop Vocabulary4 hits · 12 pts
SeverityFileLineSnippetContext
MEDIUMfyrox-ui/src/control.rs453// Essentially implements ObjectOrVariant for Control types.COMMENT
MEDIUMfyrox-impl/src/scene/camera.rs342/// Skybox is a cube around the camera with six textures forming seamless "sky". It could be anything,COMMENT
MEDIUMfyrox-impl/src/scene/node/mod.rs269// Essentially implements ObjectOrVariant for NodeTrait types.COMMENT
MEDIUMfyrox-graph/src/lib.rs1708 // Essentially implements ObjectOrVariant for NodeTrait types.COMMENT
Slop Phrases2 hits · 4 pts
SeverityFileLineSnippetContext
MEDIUMfyrox-ui/src/grid.rs157/// Here is a simple example that positions several text widgets into a 2 by 2 grid:COMMENT
LOWfyrox-impl/src/scene/camera.rs926 /// Then pass LUT to either CameraBuilder or to camera instance, and don't forget to enableCOMMENT
Verbosity Indicators1 hit · 2 pts
SeverityFileLineSnippetContext
LOWfyrox-ui/src/menu.rs718 // We need to check if some new menu item opened and then close other not inCOMMENT