markovjs-immutable
v0.1.1
Published
immutable memory implementation for markovjs
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markovjs-immutable
npm install markovjs-immutable
This is a memory implementation for markovjs based on immutablejs.
It provides an easier way to code the observation function while adding support for immutable data structures, enforcing great design patterns on your game model code.
Usage
This package exports the required update
and rater
functions, alongside an init
one used for getting the initial value.
import markov from 'markovjs'
import * as memory from 'markovjs-immutable'
const m = memory.init(0.0, a => a)
markov().memory(memory, m)
The initializer function has the following signature:
// A: action type
// G: game state type
// O: observation type
type Init = <A, G, O>(number, G=> O) => MemoryState<A, G, O>
The first parameter is the initial value for all unset memory slots.
The second one is the observe
function. It maps a game state type (G)
to an observation type (O)
.
It serves the same purpose as toString
does in the default memory implementation, but expecting an immutable value
as the return type instead of a string
.
This is one of the great things this package provides: a way for you to code your state and agent observation in a higher level letting the package figure how to store the data.
It's important to note that while the observation value
needs to be immutable, your game state value
does not.
That said, it's encouraged that you code it as an immutable value as well.
Thanks
ImmutableJS, man. What an awesome package.