Crate cvkg_anim 

CVKG Agentic Development Guidelines (v1.2)

All AI agents contributing to this crate MUST follow ALL seven rules:

── Karpathy Guidelines (1–4) ────────────────────────────────────────────

1. THINK FIRST — State assumptions. Surface ambiguity. Push back on complexity.
2. STAY SIMPLE — Minimum code. No speculative features. No unasked-for abstractions.
3. BE SURGICAL — Touch only what’s required. Own your orphans. Don’t improve neighbors.
4. VERIFY GOALS — Turn tasks into checkable criteria. Loop until they pass. Never commit broken.

── CVKG Extended Protocols (5–7) ──────────────────────────────────────── 5. TRIPLE-PASS — Read the target, its surrounding context, and its full call graph at least THREE TIMES before making any edit or revision. 6. COMMENT ALL — Every major pub fn, unsafe block, and non-trivial algorithm in every .rs/.ts/.h/.wgsl file MUST have a descriptive doc comment. Comments describe WHY and WHAT CONTRACT, not HOW mechanically. 7. MONITOR LOOPS — Check every tool call / command for progress every 30 seconds. After 3 consecutive identical failures, stop, write BLOCKED.md, and move to unblocked work. Never silently accept a broken state.

Sleipnir Animation Engine

Provides high-fidelity physics-based animation and transition systems for CVKG.

Re-exports

pub use particles::*;

Modules

advanced_particles

Advanced particle system with SDF collisions, reaction-diffusion flow fields, pointer-reactive attractors, SoA+SIMD layout, and spline-eased color animation.

behavior

Procedural behavior animation systems

geometry

growth

Growth and destruction procedural animation systems.

momentum

morph

particles

physics

Physics simulation systems for procedural animation.

shader_anim

skeletal

spring_snap

Spring snap events and haptic binding.

verlet

Structs

ActiveAnimation

Active animation state tracker

Keyframe

A discrete keyframe in a hybrid animation path

Motion

Motion controller that handles lifecycle events and state transitions.

RubberBand

Tactile “Rubber Banding” utility for scroll/drag physics. Maps an unbounded input value to a bounded range with elastic resistance.

SleipnirParams

Sleipnir spring parameters for the physics solver

SleipnirSolver

SleipnirSolver implements a 4th-order Runge-Kutta (RK4) integration for springs. This provides superior stability for high-fidelity interactive motion.

Enums

Animation

High-level Animation Primitive

Easing

ProgressDriver

Abstract driver for animation progress (Time-based or Scroll/Scalar-based)

Traits

AnimationValue