package controller

import "errors"

// ErrGameInitNilUUID is returned by GenerateGame when the supplied
// game UUID is the zero value. The HTTP layer maps it to 400.
var ErrGameInitNilUUID = errors.New("game init: gameId must not be the zero UUID")

// ErrGameAlreadyInit is returned by GenerateGame when the engine
// storage directory already contains a state.json. The HTTP layer
// maps it to 409. Repeated init on the same gameId is intentionally
// rejected rather than treated as a no-op; full idempotency is not
// part of the contract.
var ErrGameAlreadyInit = errors.New("game init: game already initialized")