Crate schema 

Replication schema and field codec definitions for the sdec codec.

This crate defines how game state is represented for replication:

• Schema model for entity types, components, and fields
• Field codecs (bool, integers, fixed-point, varints)
• Quantization and threshold configuration
• Deterministic schema hashing

Design Principles

• Runtime-first - the initial release uses runtime schema building; derive macros come later.
• Explicit schemas - No reflection on arbitrary Rust types.
• Deterministic hashing - Schema hash is stable given the same definition.

Structs

ComponentDef

A component definition within a schema.

ComponentId

A component ID within a schema (non-zero).

FieldDef

Field definition within a component.

FieldId

A field ID within a component (non-zero).

FixedPoint

Fixed-point quantization parameters (all integer-based).

Schema

A schema consisting of ordered components.

SchemaBuilder

Builder for Schema.

Enums

ChangePolicy

Change detection policy for a field.

FieldCodec

The encoding for a field (representation only).

SchemaError

Errors that can occur when building or validating a schema.

Functions

schema_hash

Computes a deterministic hash for schema validation.

Type Aliases

SchemaResult

Result type for schema operations.