Thousand Card Game: Announcing A Trump Suit

What is this project about?

This contribution is made to gornanization/1k. If you would like to find more info - I strongly recommend reading this post first.

PR:

https://github.com/gornanization/1k/pull/31

Details:

At the very beginning, I'm sorry to American audience for such click-bait title, but actually the feature I want to describe is really called so... see wiki article.

But what is a trump at all? When you have pair of a Queen and a King of the same suit (i.e.: [K♥ and Q♥] or [K♦ and Q♦ ], you basically can announce a trump. There are of course some requirements for it:

• You have to be a trick leader and
• before doing so, no card should be already thrown on a table.

We have to cover this case in our codebase. Within the current contribution throwCard action reducer has been updated. New helper functions was prepared in order to quickly find out, whether thrown card is also a trump announcement. Here is a set of steps we need to follow, while performing throw card action:

1. Is a thrown card a first on the table? (no other cards specified in trickCards).
2. If so, is the card rank a King or a Queen?
3. If so, does the player have already marriage of given card suit? (checking cards['playerName'] field).
4. If so, register a trump announcement by adding new entry in trumpAnnoncements.

If you are not familiar with state properties like trickCards, please take a look on my latest article. I have described whole game state object in details.

If one of the above described circumstances is not met, process of registering a trump is skipped. Two new unit tests has been added also to cover such cases. If you are interested in, see pull request on github page.

Coverage increased (+0.3%) to 95.803%
Bye, winners!

Image source: pixabay.com

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Posted on Utopian.io - Rewarding Open Source Contributors

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