FREE core of the Cascade motion library for UI Toolkit: fluent tween engine, the full verb set, sequencing, async/await, reduced-motion. MIT licensed, zero dependencies, Unity 6+.The free core of Cascade — real runtime motion for UI Toolkit (UXML/USS), MIT licensed, zero dependencies.PLAY IT FIRST - https://twitchedd.itch.io/cascade-blocksEvery pixel of motion in that game is Cascade.WHAT LITE INCLUDES- Fluent tween engine for any VisualElement: el.Animate().Fade(1f, .3f).MoveY(0f, .4f)- The FULL verb set: Fade, MoveX/Y/To, ScaleTo, Rotate, SlideIn, BackgroundColor, TextColor, Width, Height, Size, Top, Left- Parallel + sequential chaining (.Then()), delays, loops, Pause/Resume/Cancel- async/await everywhere — every sequence is awaitable, completion-safe on cancel/detach- Full easing library + AnimationCurve support- Reduced-motion accessibility gate- Lifecycle-safe (panel detach auto-cancels), zero per-frame GC- Demo sample: every Lite feature live with copyable code per section — plus a preview of what Pro addsWHAT PRO ADDS ($39.99)Physics springs with velocity handoff (interrupts keep momentum) • stagger across element lists • variants / named states (To("open")) • ready-made enter/exit & screen transitions with display-safe Show/Hide • hover/press/focus micro-interactions • the no-code UIAnimator (selector rules, preset browser, edit-mode live preview) • AI-first JSON authoring with validated schema and self-correcting errors • mesh drop-shadow/glow • 10 Starter Presets.Using AI? Lite ships an AI-GUIDE for generating fluent C# with your assistant; Pro adds the validated JSON front door an LLM can't get wrong.Unity 6000.0+. Clean UPM package. Do not install Lite and Pro together — Pro is a superset.Runtime tween engine for UI Toolkit (UXML/USS) — Unity 6000.0+, pure C#, zero dependencies, MITFull verb set: Fade, MoveX/Y/To, ScaleTo, Rotate, SlideIn, BackgroundColor, TextColor, Width, Height, Size, Top, Left, Value, NudgeSequencing: parallel groups, .Then() chains, delays, loops, Pause/Resume/Cancel, OnSettled, async/awaitFull easing library + AnimationCurve support; reduced-motion accessibility gateLifecycle-safe on panel detach; zero per-frame GC steady stateSample: Demo - Lite Gallery (every feature live, copyable code) + AI-GUIDE for C# generationSupported OS: every Unity-supported platform (no native code)Upgrade path: Cascade Pro adds springs, stagger, variants, transitions, micro-interactions, no-code UIAnimator, JSON/AI authoringPortions of this package's source code, tests, and documentation were developed with the assistance of AI tooling (Anthropic Claude), under continuous human direction and review. All code is compiled and exercised by an automated test suite against Unity 6000.0 and 6000.4; the free tier is additionally assembled from the Pro source and both compile-verified and test-verified as the assembled package, then installed from its built tarball into a fresh project and run.All imagery and video of the product itself — every screenshot and every clip showing the package running — is real screen capture from Unity, unedited except for cropping, trimming and colour-neutral encoding. No AI system generated, altered or simulated the package's appearance or behaviour.The promotional video uses one AI-assisted production element around that footage: the voiceover was generated locally with Kokoro TTS (kokoro-onnx, Apache 2.0) from a script written by the author. The background music is "Ambient" by leberch, from Pixabay, under the Pixabay Content Licence. The title cards, captions and background treatment are hand-authored SVG rendered with resvg — no AI system was involved in producing them. These elements are presentation only and do not depict package functionality.
