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At this point, we've created two while loops.

2
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The first while loop is for the user so that they can continue taking cards

3
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and the second while loop is for the computer so that the dealer can follow

4
00:00:12,660 --> 00:00:16,410
their strategy. Now it's time to tackle hint 13

5
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where we create a function called compare.

6
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We pass in the final user_score and computer_score,

7
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and then we compare the scores to see who has won, who has lost,

8
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or if they have a draw.

9
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So remember that in order to call a function,

10
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it has to be declared before the line we want to use it.

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So let's go back up and after hint number six

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where we had the last function,

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00:00:43,890 --> 00:00:47,880
let's add this hint here and create our compare function here.

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This compare function is going to take the user_score and also the computer_

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score and it's going to compare these two scores.

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If the user_score is equal to the computer_score,

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then we said this should mean that it's a draw.

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So we'll return some sort of message that represents this.

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But elif or else if the computer has a Blackjack,

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so the computer_score is equal to zero, well in this case

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00:01:23,640 --> 00:01:28,640
we should return that the user has lost and the opponent has a Blackjack.

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00:01:29,460 --> 00:01:32,940
And then we go through this list and we add in all of these other conditions.

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So I'm gonna speed it up a bit.

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Now for the final condition,

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it says that the player with the highest score should win.

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So we can write an elif that compares the user_score against the computer score

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and we're basically saying if the user_score is greater than the computer score,

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well, then that means that the user wins.

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But if that's not true and because we've covered everything else,

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we now have the final return, which is you lose.

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Now,

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remember that if, elif, else statements are evaluated from top to bottom.

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00:02:18,570 --> 00:02:22,800
Even though if the computer score is a zero which is a Blackjack

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00:02:23,160 --> 00:02:26,490
which is obviously much less than whatever score the user might have,

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because it's going to return at this point and it's going to exit the function,

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it will never get to this comparison if this is already true.

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If you get confused about how if elif and else works

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especially the order in which you add the conditions,

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have a look back at the lesson where we talked about this in more detail.

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This might be a good time to revise that concept.

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00:02:52,380 --> 00:02:55,440
But now that we've completed our compare function,

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00:02:55,560 --> 00:02:58,830
we're going to use it at the end of our code here

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because this is a time that the user is done drawing cards,

44
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the computer's done drawing cards

45
00:03:04,690 --> 00:03:07,660
and now we can call that compare function

46
00:03:09,370 --> 00:03:14,370
and pass in the user_score and also the computer_score.

47
00:03:16,060 --> 00:03:20,080
So this should hopefully give us the final result

48
00:03:20,290 --> 00:03:24,550
as a piece of text. Let's run the code as it is and see what happens.

49
00:03:25,120 --> 00:03:29,020
We started out with a 3 and a 6 making a 9.

50
00:03:29,740 --> 00:03:34,000
Now we know the computer at least got a 10, so let's add another card.

51
00:03:34,690 --> 00:03:38,050
So now we have a score of 11 with 3, 6, and 2,

52
00:03:38,380 --> 00:03:43,330
so we can still keep going. And luckily we've managed to get a total of 21.

53
00:03:43,870 --> 00:03:48,310
Now we're pretty much invincible I think. So if I go ahead and hit no

54
00:03:48,310 --> 00:03:52,360
cause I don't want to take any more cards, then let's see what the result is.

55
00:03:52,930 --> 00:03:56,230
So it tells us we win and a big smiley face.

56
00:03:56,620 --> 00:03:59,590
So we can probably give the user a little bit more information,

57
00:03:59,650 --> 00:04:04,630
like revealing the final deck; what the computer got, and what we got.

58
00:04:05,350 --> 00:04:09,070
I'm going to go ahead and create some other print statements above this one.

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00:04:09,910 --> 00:04:14,910
Maybe I'll tell the user that your final hand is this,

60
00:04:17,320 --> 00:04:20,290
and the final score was...

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00:04:21,519 --> 00:04:24,700
And then let's reveal to them the computer_score,

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and then finally we can print the user_score and the computer_score to

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00:04:31,930 --> 00:04:35,110
tell them who won, who lost, or whether if its a draw.

64
00:04:37,510 --> 00:04:41,380
In this deck, we've got 14, so let's add another card to it.

65
00:04:41,740 --> 00:04:45,040
Unfortunately we went over because we've got another 10.

66
00:04:45,340 --> 00:04:48,970
So our final hand is 10, 4, 10

67
00:04:49,480 --> 00:04:54,220
and the final score was 24. The computer's final hand was 21,

68
00:04:54,250 --> 00:04:55,083
lucky them.

69
00:04:55,150 --> 00:05:00,150
So we went over and we lost. If we wanted to play another game because we are

70
00:05:01,300 --> 00:05:02,470
Blackjack addicts,

71
00:05:02,740 --> 00:05:06,160
then we want to give the user some sort of means of doing this right?

72
00:05:06,730 --> 00:05:09,430
And that's what the last hint addresses.

73
00:05:09,640 --> 00:05:12,790
So we're going to ask the user if they want to restart the game.

74
00:05:13,120 --> 00:05:14,230
If the answer is yes,

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00:05:14,290 --> 00:05:18,580
then we're going to clear the console and start a new game of Blackjack and also

76
00:05:18,760 --> 00:05:21,850
show the logo from art.py while we're at it.

77
00:05:23,290 --> 00:05:27,580
Let's go ahead and add a input and we can ask them,

78
00:05:27,670 --> 00:05:31,570
do you wanna play a game of Blackjack? Type yes or no.

79
00:05:32,800 --> 00:05:37,800
So remember that this entire function is going to be evaluated and the result or

80
00:05:38,620 --> 00:05:41,920
the output is going to replace this part of the code.

81
00:05:42,520 --> 00:05:46,000
So we can say that while the input is equal to y

82
00:05:46,660 --> 00:05:49,000
then we're going to keep playing the game.

83
00:05:49,630 --> 00:05:54,630
The game is all the code between hint 5 and the end where we compare.

84
00:05:57,140 --> 00:06:00,830
So if we actually put this inside a function by

85
00:06:00,830 --> 00:06:05,830
indenting it over and then creating a function here called play_game,

86
00:06:07,430 --> 00:06:10,280
well then we can actually call this function,

87
00:06:10,340 --> 00:06:13,940
play_game, every time the user types 'y'.

88
00:06:16,790 --> 00:06:20,810
Now we don't want to clutter up our screen with all the previous games.

89
00:06:21,050 --> 00:06:23,480
So before we call play_game,

90
00:06:23,540 --> 00:06:27,440
we also want to clear the console. And to do that

91
00:06:27,470 --> 00:06:32,470
we obviously have to import the clear function from the replit module.

92
00:06:33,110 --> 00:06:34,340
So from replit

93
00:06:34,340 --> 00:06:39,340
import clear, and now we can call this clear function to clear the console in

94
00:06:42,320 --> 00:06:43,880
here after each game.

95
00:06:44,450 --> 00:06:49,450
And then we can call play_game so that the code in this function gets repeated.

96
00:06:52,190 --> 00:06:55,220
And we also said that at the beginning when we play game

97
00:06:55,340 --> 00:06:59,330
we're going to show the user the logo from art.py.

98
00:06:59,930 --> 00:07:02,870
So let's go back and import that as well.

99
00:07:02,870 --> 00:07:05,960
So from art import logo,

100
00:07:07,580 --> 00:07:12,140
and then at the beginning of every game, we're going to print our logo.

101
00:07:13,190 --> 00:07:16,490
That's all there is to this project

102
00:07:16,880 --> 00:07:21,440
and now let's run it one final time and see the whole thing in action.

103
00:07:22,520 --> 00:07:25,040
Do you wanna play a game of Blackjack? Yes.

104
00:07:26,060 --> 00:07:28,730
And it reveals our beautiful Blackjack logo.

105
00:07:29,150 --> 00:07:32,390
It tells us the cards that we have, so current score of 11.

106
00:07:32,420 --> 00:07:36,590
I'm going to take another card. I'm on 21, which is perfect.

107
00:07:36,620 --> 00:07:41,150
So I'm going to pass now. And it tells me that my final hand was 21,

108
00:07:41,390 --> 00:07:46,390
the computer's final hand was 17 and I win. And now I can play another game just

109
00:07:47,330 --> 00:07:48,950
by typing 'y' again.

110
00:07:49,880 --> 00:07:54,200
And I can keep going on and on playing my game of Blackjack.

111
00:07:54,950 --> 00:07:57,620
So I hope you had fun at building this game with me.

112
00:07:57,980 --> 00:08:02,390
I know this was a really difficult project and I know that some of you would

113
00:08:02,390 --> 00:08:03,710
have probably had some issues,

114
00:08:03,710 --> 00:08:07,850
but I really hope that you persevered and you got through it in the end. And

115
00:08:07,850 --> 00:08:09,020
through the process

116
00:08:09,050 --> 00:08:12,740
you've managed to apply a lot of the things that we've learned in the last 10

117
00:08:12,740 --> 00:08:13,573
days.

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00:08:13,760 --> 00:08:17,900
This is a good time to review the concepts you've learned and have a think about

119
00:08:17,900 --> 00:08:22,460
what you might need to revise or revisit so that you're really,

120
00:08:22,460 --> 00:08:24,740
really strong on all the concepts

121
00:08:25,070 --> 00:08:29,450
and you're comfortable to continue on to the next 10 days. Now,

122
00:08:29,480 --> 00:08:32,809
if you want to take a look at the final code that I've got here,

123
00:08:33,080 --> 00:08:37,400
then just head over to repl.it/@appbrewery/blackjack-final

124
00:08:37,820 --> 00:08:41,419
and you'll see all the code that I went through with you just now.