excaliburjs/Excalibur
Nov 2024 – Oct 2025
11 Months active
Languages Used
GLSLHTMLJavaScriptMarkdownShellTypeScriptCSSSh
Technical Skills
API DesignAPI RefactoringAction ScriptingActionScriptingAnimationBezier Curves
Erik Onarheim
PROFILE
Erik Onarheim
Erik Onarheim contributed to the excaliburjs/Excalibur repository by delivering core engine features, performance optimizations, and stability improvements across game development workflows. He enhanced collision detection, audio management, and animation systems, introducing a centralized SoundManager and optimizing raycasting for faster runtime behavior. Erik refactored APIs for clarity, improved scene transition data handling, and streamlined build and release automation using TypeScript and JavaScript. His work addressed edge-case bugs, improved input handling in browser environments, and strengthened documentation and CI/CD reliability. Through careful debugging, refactoring, and technical writing, Erik ensured the engine’s maintainability, developer ergonomics, and robust integration with modern web technologies.
Overall Statistics
Feature vs Bugs
57%Features
Repository Contributions
120Total
Bugs
32
Commits
120
Features
42
Lines of code
57,157
Activity Months11
Work History
October 2025
7 Commits • 3 Features
Oct 1, 2025Concise monthly summary for 2025-10: Delivered key improvements in documentation navigation, rendering performance, API ergonomics, and reliability across the Excalibur project. The month focused on delivering business value through easier access to features, faster runtime behavior, and cleaner APIs, while maintaining robust correctness and integration with the ECS/physics stack.
7 Commits • 3 Features
Oct 1, 2025Concise monthly summary for 2025-10: Delivered key improvements in documentation navigation, rendering performance, API ergonomics, and reliability across the Excalibur project. The month focused on delivering business value through easier access to features, faster runtime behavior, and cleaner APIs, while maintaining robust correctness and integration with the ECS/physics stack.
October 2025
September 2025
18 Commits • 2 Features
Sep 1, 2025September 2025 (2025-09) – Excalibur (excaliburjs/Excalibur) delivered substantial improvements in release automation, CI/CD reliability, and documentation. Key outcomes include a consolidated release workflow with npm/NuGet publishing, provenance tracking, and test/coverage infrastructure enhancements, resulting in faster, more reliable releases. A site build stability fix resolved donated lock issues, preserving build integrity. Documentation and release notes (CHANGELOG and sample data) were updated ahead of the 0.31.0 release, setting clear expectations for consumers. Enabling provenance publishing and related publishing refinements improved traceability and compliance across release artifacts.
September 2025
18 Commits • 2 Features
Sep 1, 2025September 2025 (2025-09) – Excalibur (excaliburjs/Excalibur) delivered substantial improvements in release automation, CI/CD reliability, and documentation. Key outcomes include a consolidated release workflow with npm/NuGet publishing, provenance tracking, and test/coverage infrastructure enhancements, resulting in faster, more reliable releases. A site build stability fix resolved donated lock issues, preserving build integrity. Documentation and release notes (CHANGELOG and sample data) were updated ahead of the 0.31.0 release, setting clear expectations for consumers. Enabling provenance publishing and related publishing refinements improved traceability and compliance across release artifacts.
August 2025
3 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on delivering a centralized SoundManager and stabilizing animation behavior in the Excalibur project. Highlights include audio orchestration improvements, robust animation frame handling, and maintainability gains that enhance developer experience and platform reliability.
3 Commits • 1 Features
Aug 1, 2025Monthly summary for 2025-08 focusing on delivering a centralized SoundManager and stabilizing animation behavior in the Excalibur project. Highlights include audio orchestration improvements, robust animation frame handling, and maintainability gains that enhance developer experience and platform reliability.
August 2025
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 Monthly Summary for excaliburjs/Excalibur focused on delivering core engine performance improvements, robust input handling, and security/stability updates that directly enhance gameplay responsiveness, developer productivity, and product stability.
July 2025
4 Commits • 2 Features
Jul 1, 2025July 2025 Monthly Summary for excaliburjs/Excalibur focused on delivering core engine performance improvements, robust input handling, and security/stability updates that directly enhance gameplay responsiveness, developer productivity, and product stability.
June 2025
6 Commits • 2 Features
Jun 1, 2025June 2025 monthly performance summary for Excalibur (excaliburjs/Excalibur). Key improvements delivered across the engine and CI/CD pipeline: - Deployment and build workflow optimization: removed the redundant npm run build:esm step and resolved BrowserStack/Vite compatibility issues in CI, reducing build friction and improving reliability in the deployment pipeline. - Stateful scene transitions: implemented data passing on scene deactivate so onDeactivate can return data that is forwarded as previousSceneData to the next scene's onActivate, enabling cleaner, stateful transitions. - Audio and asset reliability fixes: ensured Sound.play(0) consistently respects zero volume, and fixed initial scene onPreLoad sequencing plus font asset path for sandbox setup, improving startup stability and asset loading. Impact and outcomes: - More reliable deployments with faster feedback cycles and fewer CI issues. - Improved runtime correctness for scene transitions and audio behavior, reducing edge-case bugs in apps built on Excalibur. - Enhanced sandbox and font loading reliability, supporting smoother developer experimentation. Technologies/skills demonstrated: - CI/CD optimization (Vite, BrowserStack integration) and build tooling, - Engine lifecycle enhancements (Scene deactivation data flow), - Audio subsystem fixes and font/asset loading handling, - Sandbox environment stability and maintainability.
6 Commits • 2 Features
Jun 1, 2025June 2025 monthly performance summary for Excalibur (excaliburjs/Excalibur). Key improvements delivered across the engine and CI/CD pipeline: - Deployment and build workflow optimization: removed the redundant npm run build:esm step and resolved BrowserStack/Vite compatibility issues in CI, reducing build friction and improving reliability in the deployment pipeline. - Stateful scene transitions: implemented data passing on scene deactivate so onDeactivate can return data that is forwarded as previousSceneData to the next scene's onActivate, enabling cleaner, stateful transitions. - Audio and asset reliability fixes: ensured Sound.play(0) consistently respects zero volume, and fixed initial scene onPreLoad sequencing plus font asset path for sandbox setup, improving startup stability and asset loading. Impact and outcomes: - More reliable deployments with faster feedback cycles and fewer CI issues. - Improved runtime correctness for scene transitions and audio behavior, reducing edge-case bugs in apps built on Excalibur. - Enhanced sandbox and font loading reliability, supporting smoother developer experimentation. Technologies/skills demonstrated: - CI/CD optimization (Vite, BrowserStack integration) and build tooling, - Engine lifecycle enhancements (Scene deactivation data flow), - Audio subsystem fixes and font/asset loading handling, - Sandbox environment stability and maintainability.
June 2025
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 - Excalibur: Delivered reliability and observability improvements across velocity math and logging. Implemented a robust safeguard for division-by-zero in timescale-based velocity calculations and tightened development-only warnings for entities not added to a scene, reducing production log noise while preserving dev-time visibility.
April 2025
2 Commits • 1 Features
Apr 1, 2025April 2025 - Excalibur: Delivered reliability and observability improvements across velocity math and logging. Implemented a robust safeguard for division-by-zero in timescale-based velocity calculations and tightened development-only warnings for entities not added to a scene, reducing production log noise while preserving dev-time visibility.
March 2025
5 Commits • 2 Features
Mar 1, 2025For March 2025, delivered developer-facing enhancements and reliability improvements in Excalibur with a focus on practical value for game developers. Key work includes new sandbox examples (text centering and scene fade transitions), consolidated documentation and content updates (color docs, year-in-review, and blog link fixes), and a critical TileMap transform-related fix to ensure meshes and colliders recalculate when transforms change.
5 Commits • 2 Features
Mar 1, 2025For March 2025, delivered developer-facing enhancements and reliability improvements in Excalibur with a focus on practical value for game developers. Key work includes new sandbox examples (text centering and scene fade transitions), consolidated documentation and content updates (color docs, year-in-review, and blog link fixes), and a critical TileMap transform-related fix to ensure meshes and colliders recalculate when transforms change.
March 2025
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 — Excalibur Repository (excaliburjs/Excalibur). Focused on stability, better developer experience, and foundational APIs to enable broader feature development. Delivered fixes to typing and configuration paths, enhanced scene lifecycle visibility, and exposed reusable utilities for cross-project reuse.
February 2025
4 Commits • 2 Features
Feb 1, 2025February 2025 — Excalibur Repository (excaliburjs/Excalibur). Focused on stability, better developer experience, and foundational APIs to enable broader feature development. Delivered fixes to typing and configuration paths, enhanced scene lifecycle visibility, and exposed reusable utilities for cross-project reuse.
January 2025
7 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for excaliburjs/Excalibur. Focused on delivering business value through feature enhancements, stability fixes, and API simplifications, with an emphasis on robust loading, accurate input handling, and improved developer experience. Key outcomes include stronger gamepad input support during loading, a simpler Bird API, stabilized docs tooling, and fixes that reduce false warnings and rendering jitter.
7 Commits • 2 Features
Jan 1, 2025January 2025 monthly summary for excaliburjs/Excalibur. Focused on delivering business value through feature enhancements, stability fixes, and API simplifications, with an emphasis on robust loading, accurate input handling, and improved developer experience. Key outcomes include stronger gamepad input support during loading, a simpler Bird API, stabilized docs tooling, and fixes that reduce false warnings and rendering jitter.
January 2025
December 2024
41 Commits • 11 Features
Dec 1, 2024December 2024 (Excalibur repo) focused on delivering rendering improvements, cleaning up the API surface, and strengthening stability ahead of the v0.30.x release. The work centralized on visual capabilities (tiling sprites and animations), performance and startup improvements (lazy loading of particles, GPU/Cpu alignment), API simplification, and release readiness (docs, blogs, and version bumps).
December 2024
41 Commits • 11 Features
Dec 1, 2024December 2024 (Excalibur repo) focused on delivering rendering improvements, cleaning up the API surface, and strengthening stability ahead of the v0.30.x release. The work centralized on visual capabilities (tiling sprites and animations), performance and startup improvements (lazy loading of particles, GPU/Cpu alignment), API simplification, and release readiness (docs, blogs, and version bumps).
November 2024
23 Commits • 14 Features
Nov 1, 2024November 2024 (excaliburjs/Excalibur) focused on performance, API ergonomics, and gameplay tooling. Key features delivered include a number of performance and capability improvements, and a set of API refinements that reduce friction for developers. Highlights: - Performance improvement for ex.Entity.get(...) (commit 1fd83fd312ccc250051a47715c8657e9453d0a69) to reduce lookup overhead and stabilize frame times. - Add ex.BezierCurve and CurveBy/CurveTo actions (#3282) (commit 9176e5b705cc8b851050d5e0395e58bdb29c13c0) enabling richer motion paths. - Tile enter/leave events for TileMap and IsometricMap (#3283) (commits 1e5e9f1df1b102f828f35462a5670f8d88c7722c and b06f3ff68e0f212a3f7b57585cbf0a0548dab0d1) to support fine-grained tile-based interactions. - Remove ex.Input.* namespace; promote types to ex.* (remove: ex.Input.* namepsace, types promoted to ex.*) (commit c3b51af24e4d4fe1812929609b0ff3e6270c0cb4) simplifying the API surface. - Bug fixes and stabilization: addressing sparse hash grid bounds issue and problematic imports (commit 94f38fab8c9e7a11fa5a49255621ad7e94506e75; fix: adjust problematic /excalibur imports) and related improvements. Overall, these changes reduce runtime overhead, improve developer ergonomics, and enable richer gameplay patterns while maintaining API consistency. Performance-driven improvements and new curve-based motion capabilities directly translate to smoother experiences and faster iteration for game developers. Technologies/skills demonstrated: TypeScript/JavaScript, performance profiling and optimization, API design and deprecation planning, curve/Bezier math integration, event-driven tile lifecycle, rendering optimization considerations, and documentation alignment.
23 Commits • 14 Features
Nov 1, 2024November 2024 (excaliburjs/Excalibur) focused on performance, API ergonomics, and gameplay tooling. Key features delivered include a number of performance and capability improvements, and a set of API refinements that reduce friction for developers. Highlights: - Performance improvement for ex.Entity.get(...) (commit 1fd83fd312ccc250051a47715c8657e9453d0a69) to reduce lookup overhead and stabilize frame times. - Add ex.BezierCurve and CurveBy/CurveTo actions (#3282) (commit 9176e5b705cc8b851050d5e0395e58bdb29c13c0) enabling richer motion paths. - Tile enter/leave events for TileMap and IsometricMap (#3283) (commits 1e5e9f1df1b102f828f35462a5670f8d88c7722c and b06f3ff68e0f212a3f7b57585cbf0a0548dab0d1) to support fine-grained tile-based interactions. - Remove ex.Input.* namespace; promote types to ex.* (remove: ex.Input.* namepsace, types promoted to ex.*) (commit c3b51af24e4d4fe1812929609b0ff3e6270c0cb4) simplifying the API surface. - Bug fixes and stabilization: addressing sparse hash grid bounds issue and problematic imports (commit 94f38fab8c9e7a11fa5a49255621ad7e94506e75; fix: adjust problematic /excalibur imports) and related improvements. Overall, these changes reduce runtime overhead, improve developer ergonomics, and enable richer gameplay patterns while maintaining API consistency. Performance-driven improvements and new curve-based motion capabilities directly translate to smoother experiences and faster iteration for game developers. Technologies/skills demonstrated: TypeScript/JavaScript, performance profiling and optimization, API design and deprecation planning, curve/Bezier math integration, event-driven tile lifecycle, rendering optimization considerations, and documentation alignment.
November 2024
Activity
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Quality Metrics
Correctness91.6%
Maintainability91.8%
Architecture88.6%
Performance88.4%
AI Usage20.2%
Skills & Technologies
Programming Languages
BashCSSGLSLHTMLINIJavaScriptMarkdownPowerShellPythonSh
Technical Skills
API DesignAPI IntegrationAPI RefactoringAction ScriptingActionScriptingAnimationAnimation SystemsAsset OptimizationAsynchronous ProgrammingAudio ManagementAudio ProgrammingAutomationBezier CurvesBrowser APIsBrowserStack
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