# Canaplia 2.0 Foundations

This document tracks the architectural groundwork introduced in `2.0.0`.

## Goals
- Prepare variant-specific smoke effects without changing item ids later.
- Prepare resin evolution from shared-behavior resin blocks toward future unique resin variants.
- Keep current gameplay behavior stable until the next prompts add new content.

## What changed
- `RolledJointItem` is now aware of its `HempVariant`.
- `CanapliaSmokeEffects` now resolves profiles from `SmokeSource + HempVariant`.
- `HempBudCompostingState` now remembers which hemp variant was inserted into each tracked composter.
- `HempBudComposterInteraction` now accepts any hemp bud variant and blocks mixed-variant composting in a single composter.
- `CanapliaResinCatalog` now maps each bud variant to its matching resin block and burn duration.

## Current shared behavior
- All hemp variants still use the same smoke effect set for now.
- All resin block variants still use the same smoke behavior for now.
- All resin block variants still use the same burn duration for now.

## Next prompt entry points
- Add unique smoke profiles in `CanapliaSmokeEffects#createVariantAwareProfile`.
- Add unique burn durations in `CanapliaResinCatalog#resolve`.
- Add unique resin-side effects if they need to diverge from the hemp source variant.