Tutorial-Blog Card Game Eventing: Flipping Cards & Drawing a Hand

[Touchfuzzy]

Written by: @hiddenone

Read the Tutorial Here​

 

[Finnuval]

Another great and very useful tutorial!
Thanks @hiddenone

 

[ShadowDragon]

this is something really neat, I wish you had a demo for MV/MZ for this one,
so I can take a better look and action on it.

I would take a much different way for this, but this is really nice and clean too.
awesome tutorial, can come in handy, ty you for this one .

 

[caethyril]

I dislike the way this tutorial picks cards:

1. Selection of 1 card only needs 1 random roll, e.g. an "ID" from 1 to 52 (inclusive).
   • This can be converted to "suit-#" format afterwards, e.g. 20 -> diamond-7.
   
   
2. Looping to avoid duplicates may bias the RNG and seems inefficient.
   • Alternative: store deck card IDs in an array and splice them out when drawn.
     (A similar approach was described in a previous tutorial on random dialogue.)

As usual, though, the rest looks great~

 

[ATT_Turan]

Selection of 1 card only needs 1 random roll...store deck card IDs in an array and splice them out when drawn.

That seems the most efficient. Make an array of the card IDs in the first place and use one random number based on the length of that array.

It should make the randomness more fair and eliminate the need for a separate "cards drawn from deck" array. (a common need to replace that might be a "discard pile" array, depending on what the nature of the card game is.)

 

[Lady_JJ]

What a great tutorial! I never realized you could 'flip' an image without using a plugin. That trick alone is worth the time reading the tutorial. I would also shuffle the deck by splicing an array. I just love these tutorials. I learn something from each and every one.

 

[hiddenone]

@caethyril Looking back at it, I agree that using an array for the deck would probably be a better method. I wanted to try something else for this tutorial so I played around with a few ways to pick a card, and the one I ended up using seemed to work the best while being random (though that could just be because of how much rng likes to mess with me ).

 

[BreakerZero]

Great tutorial. I was able to get a standard poker draw going with this which will replace a plugin that has sadly been abandoned. Not to mention that what I have isn't as flexible as it relies on mouse controls which are impractical for my Xbox port. All I need now is for someone to help me with the payout logic and I should be good to go.

Also, does anyone have any ideas on how to modify this for Blackjack?

 

[Trihan]

Great tutorial. I was able to get a standard poker draw going with this which will replace a plugin that has sadly been abandoned. Not to mention that what I have isn't as flexible as it relies on mouse controls which are impractical for my Xbox port. All I need now is for someone to help me with the payout logic and I should be good to go.

Also, does anyone have any ideas on how to modify this for Blackjack?

What modifications would you need help implementing?

 

[BreakerZero]

What modifications would you need help implementing?

Drawing the first two cards, then drawing the next card if you choose to until you hit 21 or go over (aka hand bust). I would also need a mechanism for saving two individual cards if you hand split. And an automatic stop to the game if you draw a perfect hand at the start.

As for the poker draw, how do you suggest I run the calculations?

 

[Trihan]

Drawing the first two cards, then drawing the next card if you choose to until you hit 21 or go over (aka hand bust). I would also need a mechanism for saving two individual cards if you hand split. And an automatic stop to the game if you draw a perfect hand at the start.

As for the poker draw, how do you suggest I run the calculations?

I can only speak for myself, but honestly I would approach this from the opposite end: rather than having an array to track which cards are "out" of the deck, I'd simply have an array for the deck itself, and shuffle it by randomising the elements. Then to draw, I'd just pop off the first value. So drawing 2 cards would be as simple as popping 2 values. I think this ultimately works out cleaner, because it's impossible to confuse which cards are in the deck and which aren't: if it's not in the deck, it's been drawn.

As for the split thing, I'd just have two player hand arrays in that case.

 

[exnem]

I'm trying your tutorial, and after creating the events and testing, I get this error:

require(...).Window.get(...).isDevToolsOpen is not a function

Does anyone have any idea why that is?

 

[caethyril]

require(...).Window.get(...).isDevToolsOpen is not a function

I suspect you are also using a very old plugin that changes how errors are displayed: isDevToolsOpen hasn't worked in NWJS for years.

Try turning off all plugins, save your project to apply Plugin Manager changes, and test. If that helps, then make sure all your plugins are up-to-date.

Once that is fixed, I imagine you will get a more relevant error, probably a typo in one of your Script commands.

 

[exnem]

I suspect you are also using a very old plugin that changes how errors are displayed: isDevToolsOpen hasn't worked in NWJS for years.

Try turning off all plugins, save your project to apply Plugin Manager changes, and test. If that helps, then make sure all your plugins are up-to-date.

Once that is fixed, I imagine you will get a more relevant error, probably a typo in one of your Script commands.

Thank you very much, I will try that