engine-blackjack - implement blackjack game into your software.
There are many possible configuration. We are implementing Standard and Custom optionsso that you can easily combine flags to create games according with your skill/needs.
JavaScript is primarily for web browsers with some exceptions (like node.js). Unless your using node, you won't be able to get user input using the console. Instead of using console.log('New Hand: ' + handValue) use.
decks
, default is 1
standOnSoft17
, turn On/Off the 'Soft 17' rule, default true
double
, ability to double after deal, default any
none
not allowedany
any allowed9or10
9or10or11
9thru15
split
, On/Off the possibility to split after deal, default true
doubleAfterSplit
, On/Off the possibility to double after split (split and double must be 'on'), default true
surrender
, on/off the ability to surrender after deal, default true
insurance
, on/off the ability of ensuring a hand, default true
There are many variations of this game and I really do not know them all, but if you ask me I will add them.Here a list of direct (and maybe exotic) requests:
showdownAfterAceSplit
, after the deal and if player receives 2 aces and a split is called, a card is dealt on each side and showdown phase is initialized (the game ends) default true
but it depends on split
.If you are using npm, to get the last version:
yarn add engine-blackjack
npm install engine-blackjack
I'm currently publishing the master branch into NPM until I get the first tag.Ideally, only tagged commits will be uploaded as NPM after that moment.
NOTE: Master branch is under development. Be sure to 'ONLY' use tagged version for your production.
Once obtained the library just requireGame
and actions
.
At this point you can initialize a new game by calling the Game constructor
.
In this cases, no state is passed to the constructor:
dispatch
actions to alter the stateAt any moment we can require the current state of the game by calling the getState()
.
The content of the state and its schema depends on the stage of the game. In this casewe initialized the game without any precedent state, so we will receive something like this:
For the moment the only thing we should note is that the fieldstage
tells us 'game is ready'.
The only way to mutate the state of the game is to dispatch actions. Some actions are required by the 'user',some other actions are dispatched by the engine to 'complete' the game.
NOTE: In a real game, players and dealer are allowed to 'do actions'. The engine will 'impersonate the dealer' at some point, depending on the last action and the state.
Inspired by projects done by people I consider smart, like Flux or Redux,and motivated by the desire to introduce the functional paradigm in my work day:
Everything you need to hack is of course inside /src
or /test
andnpm test
does what you expect (plus a lot of console.log for the moment)
see the /src/actions.js
Engine exposes actions, once invoked, the state of the game is changed.The following list represent the actions that can be dispatched by from the public API.
And, those are actions that are internally called in determinate stages by the engine itself.
See the /src/game.js
The stage represent a moment in the game. The stage is directly related with the action allowed in that particular moment.
Current available stages are:
The game logic is implemented into /src/engine.js
. There some more methods, strictly related to the tests and for the moment are not tested (who test the test is not yet solved).There is a specific design limitation currently in the code. Currently it support only 2 position, user can 'split' but it is not possible at the moment to create more complex variants of the game.
NOTE: If you are interested in the random components, check out the shuffle()
function.
Run tests by calling yarn test
or npm test
You can also write specific test cases using this syntax. For more details have a look at game.spec.js
Jest will care about the following tasks:
♠10 ♦1 ♥5 ♣6 ♠11 ♦10
at the and of the deckrestore
, deal
, split
and finally standR
(stand on right)stage
is 'done' at the endIf you specify the finalWin
the test will compare the final winning.
Side bets are part of the 'multi-game strategy'. They are returned to the client as 'available bets' and they can be sets in the deal()
payload.Engine will calculate the side bet result during the deal()
engine-blackjackCopyright (C) 2016 Marco Casula
This program is free software; you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.
You should have received a copy of the GNU General Public License alongwith this program; if not, write to the Free Software Foundation, Inc.,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Thanks @webpty for logos
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