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Well Suited

4:10 with Ben Deitch

In this video we'll see how we can print out the suits just like any other character!

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Unicode Suits

        diamonds -> "\u2666"
        clubs -> "\u2663"
        hearts -> "\u2665"
        spades -> "\u2660"

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All right on to the suparameter. 0:00

Did you know that each of the suits is included in Unicode? 0:03

Meaning that each suit is a character that we can type out. 0:07

Let's start by replacing our suit and 0:11

our print string with a dollar sign and then brackets. 0:13

Inside the brackets, let's call a function that doesn't exist yet 0:18

named getSuitChar and pass in the suit. 0:22

Then let's use Alt+Enter to create the function. 0:28

And after it's created, let's delete the brackets and 0:36

then set this function equal to when suit and then add brackets. 0:40

And inside our when statement, 0:47

let's start by checking if the suit is equal to diamonds. 0:49

And if it is, Then let's return the Unicode 0:53

character for diamonds, which is \u2666. 1:00

Next hit command or Ctrl+D three times to duplicate this line. 1:06

And then let's change these extra 1:14

diamonds to clubs, hearts and spades. 1:19

And let's change the Unicode characters to u2663 for 1:24

clubs, u2665 for hearts and u2660 for 1:30

spades, these are all in the teacher's notes as well. 1:35

Finally, since we're counting on this when statement to always return something 1:42

let's add an else. 1:47

And if we get anything else, 1:49

let's return a string that says incorrect suit then let's run the app. 1:52

And sweet, I got the ten of spades. 2:00

My favorite. 2:02

Last but not least, let's deal with the face up property. 2:03

If a card is face up, we should be able to see it. 2:07

But if it's face down, we shouldn't be able to tell what card it is. 2:10

So really, I shouldn't be able to tell that this card is a ten of spades. 2:14

To fix this, let's first take the face up property out of our print string. 2:20

Then let's add a line above the return and type if faceUp. 2:29

And then put our return statement inside the brackets. 2:37

Next let's add an else and if it's not face up, let's return three Xs. 2:41

Great, but before we move on, let's make this two string function a lot smaller. 2:51

To do that, I first need to tell you about the ternary operator and column. 2:56

Remember the Ternary Operator? 3:01

It's these guys. 3:03

They let us do a conditional statement on only one line. 3:04

See, the thing is, Kotlin doesn't have a Ternary Operator. 3:07

Instead, with Kotlin, an if statement returns a value. 3:11

So instead of using some weird syntax, we can just use if and 3:16

else like we're used to. 3:20

So to get this down to one line, 3:22

let's first delete the outside brackets and then add an equal sign. 3:24

Then, since if statements already return values, let's delete the return keywords. 3:30

And finally, let's get rid of the brackets and put everything on one line. 3:41

Awesome, our two string function is ready for action. 3:59

Now let's give it some exercise by printing out the entire game board instead 4:03

of just the top card in our deck. 4:07

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