1
00:00:00,030 --> 00:00:04,800
Hey guys, welcome to Day 14 of 100 Days of Code. Today

2
00:00:04,800 --> 00:00:09,450
you are going to spend building an exciting game called Higher or Lower.

3
00:00:10,020 --> 00:00:12,660
And if you want to have a go at it, just go over to higher

4
00:00:12,660 --> 00:00:15,540
lowergame.com and click on classic.

5
00:00:16,110 --> 00:00:20,910
So the classic version of higher lower is you compare one search term,

6
00:00:20,940 --> 00:00:22,230
The Grand Budapest hotel

7
00:00:22,230 --> 00:00:26,010
which is a movie, against another search term AFL,

8
00:00:26,040 --> 00:00:27,690
which is the American Football League.

9
00:00:28,260 --> 00:00:33,210
And you have to say if the second one has higher or lower searches

10
00:00:33,480 --> 00:00:37,050
than the Grand Budapest hotel. So I think this probably has higher.

11
00:00:37,740 --> 00:00:42,480
And indeed I'm right. And then now it gives you a new term to compare.

12
00:00:42,990 --> 00:00:47,100
So Six Nations Rugby versus AFL who has lower.

13
00:00:47,430 --> 00:00:50,250
I think this probably has lower and I'm right.

14
00:00:50,610 --> 00:00:53,490
And you keep going until you get it wrong.

15
00:00:53,670 --> 00:00:57,750
And it's a weirdly addictive game for some reason. Okay.

16
00:00:57,750 --> 00:01:02,460
So now I've gotten it wrong and it tells me how many I got right as my score

17
00:01:02,820 --> 00:01:07,230
and I can play again if I wish to. Have a play around with that game

18
00:01:07,260 --> 00:01:10,740
because the final version we have looks a lot simpler,

19
00:01:10,890 --> 00:01:13,050
but it's still just as fun to play.

20
00:01:13,680 --> 00:01:17,520
Instead of comparing average monthly searches on Google,

21
00:01:17,730 --> 00:01:21,300
we're comparing who has more followers on Instagram.

22
00:01:21,750 --> 00:01:26,130
So we're bringing this game up to date. In this case, it's comparing Neymar,

23
00:01:26,190 --> 00:01:30,210
a footballer from Brazil against Chloe Kardashian, a reality TV

24
00:01:30,240 --> 00:01:34,530
personality and businesswoman from the US who has more followers.

25
00:01:34,770 --> 00:01:39,300
So I think it's 'B', I could be wrong and I'm wrong.

26
00:01:42,740 --> 00:01:43,880
So here we're comparing

27
00:01:44,150 --> 00:01:49,070
Rihanna a musician and businesswoman from Barbados against Shakira

28
00:01:49,100 --> 00:01:50,480
a musician from Columbia.

29
00:01:50,810 --> 00:01:54,800
So I'm going to guess probably Rihanna and I get it right,

30
00:01:54,800 --> 00:01:59,800
so I get to score one point. And this game continues on and on until you get to

31
00:02:01,970 --> 00:02:05,600
the point where you get it wrong, same as the one that you saw before.

32
00:02:06,980 --> 00:02:10,220
And there we go. So I got three as my final score,

33
00:02:10,639 --> 00:02:12,830
and that's the end of the game.

34
00:02:13,340 --> 00:02:18,260
The aim of the game is to try and stay alive for as long as possible and score

35
00:02:18,290 --> 00:02:23,290
as high as possible by thinking about who might be more popular than the other.

36
00:02:23,930 --> 00:02:25,670
Now here comes the interesting part.

37
00:02:25,910 --> 00:02:29,690
You are going to be coding up this game entirely by yourself.

38
00:02:30,320 --> 00:02:35,320
You're going to apply everything you've learned so far to understand how this

39
00:02:35,510 --> 00:02:37,970
game works by playing it quite a few times,

40
00:02:38,240 --> 00:02:42,770
going to this URL and looking at all the specific nuances;

41
00:02:42,770 --> 00:02:45,920
what happens if you get it wrong, what happens if you get it right,

42
00:02:46,490 --> 00:02:49,520
and you're gonna write the code all yourself,

43
00:02:49,970 --> 00:02:54,320
and you're probably going to need your skills of debugging to fix some problems

44
00:02:54,350 --> 00:02:55,730
as you go along as well.

45
00:02:56,360 --> 00:03:01,270
So the approach I want you to take is first think about the problem and then

46
00:03:01,330 --> 00:03:05,080
break down a large problem into smaller problems.

47
00:03:05,560 --> 00:03:09,940
This way you can tackle them one by one, and it won't be so intimidating.

48
00:03:10,480 --> 00:03:14,830
Now, step 2 is to look at those problems and make a

49
00:03:14,830 --> 00:03:17,950
to-do list. Given the items on the to-do list,

50
00:03:18,310 --> 00:03:22,240
you're going to pick the one that you think is the easiest to begin.

51
00:03:22,930 --> 00:03:26,860
Let's say that, uhm, maybe generating a random number.

52
00:03:26,890 --> 00:03:30,100
That's pretty simple, right? Well, in this to-do list,

53
00:03:30,130 --> 00:03:33,190
that's the first one we're going to tackle. So in this case,

54
00:03:33,190 --> 00:03:36,040
we're building a very simple dice game, right?

55
00:03:36,160 --> 00:03:38,770
The game that you were going to be building is a lot more complex,

56
00:03:38,770 --> 00:03:41,560
it won't just have three to-dos. But the idea is the same.

57
00:03:41,770 --> 00:03:46,720
Once you pick the task that you think is the easiest, generating a random number,

58
00:03:47,110 --> 00:03:48,880
then you gotta take that problem

59
00:03:49,030 --> 00:03:52,450
and you're going to break it down into comments in your code.

60
00:03:52,900 --> 00:03:56,740
So just as you've seen me do it for our previous project,

61
00:03:57,010 --> 00:03:58,300
you are going to do the same thing.

62
00:03:58,390 --> 00:04:02,320
You're going to take that problem of generating a random number and then split

63
00:04:02,320 --> 00:04:04,660
it into different pieces, right?

64
00:04:04,690 --> 00:04:08,440
First, you probably have to import the random module and then you probably have

65
00:04:08,440 --> 00:04:11,260
to use a function like randint to generate

66
00:04:11,290 --> 00:04:16,290
a random integer. So now that you've taken a big problem and broken it apart into

67
00:04:16,870 --> 00:04:20,380
smaller problems, taking the easier smaller problem

68
00:04:20,649 --> 00:04:23,110
and break it down into comments in your code,

69
00:04:23,440 --> 00:04:25,690
then you are ready to start writing some code.

70
00:04:26,500 --> 00:04:30,820
So write code beneath the comments, run your code,

71
00:04:31,120 --> 00:04:35,110
make sure that it does what you want it to do. And if it doesn't, then fix the code.

72
00:04:35,530 --> 00:04:37,930
And once you've done that, then it's back to the beginning,

73
00:04:37,960 --> 00:04:41,140
write more code under the comments, run more code,

74
00:04:41,170 --> 00:04:45,880
fix more code until you've managed to cross out that task.

75
00:04:46,330 --> 00:04:50,140
And then its a case of tackling the next one that you think you can attempt.

76
00:04:50,530 --> 00:04:54,700
So this is the real skill of programmers; taking something that's immensely

77
00:04:54,700 --> 00:04:58,090
complex and difficult, breaking it down into smaller problems,

78
00:04:58,390 --> 00:04:59,710
breaking it down further,

79
00:04:59,740 --> 00:05:04,000
and then tackling them from the easiest to the hardest and doing this one by

80
00:05:04,000 --> 00:05:08,170
one. Eventually by the end, you end up with your final product.

81
00:05:08,650 --> 00:05:10,330
This is what I want you to do.

82
00:05:10,900 --> 00:05:14,620
So the first thing you have to do is the head over to the final version of the

83
00:05:14,620 --> 00:05:15,400
game,

84
00:05:15,400 --> 00:05:20,400
play it at least 10 times just so you understand exactly how it works and then

85
00:05:21,100 --> 00:05:25,960
pull up the starting code for the day, which is the higher-lower-start,

86
00:05:26,560 --> 00:05:29,410
and go ahead and fork your own copy of it.

87
00:05:30,280 --> 00:05:35,280
Now you'll notice that there's three files in the starting code. One is the art

88
00:05:35,860 --> 00:05:40,860
.py that contains the logo and the versus symbol that shows up when it asks you

89
00:05:41,950 --> 00:05:42,880
to compare.

90
00:05:43,810 --> 00:05:48,040
So compare A, Christiano Ronaldo versus B, Vin Diesel.

91
00:05:48,640 --> 00:05:51,640
And these are the art that you're going to display. And finally,

92
00:05:51,910 --> 00:05:56,770
and probably most importantly, there is a file called game data. Now game data

93
00:05:56,800 --> 00:05:59,180
only a single variable.

94
00:05:59,600 --> 00:06:03,410
It's a list of dictionary entries.

95
00:06:03,890 --> 00:06:08,720
Each of these dictionaries have four keys and the keys are the same for

96
00:06:08,720 --> 00:06:12,920
all of the entries. They've got a name, the name of the account,

97
00:06:13,190 --> 00:06:14,300
the follower count,

98
00:06:14,300 --> 00:06:18,530
so how many followers in millions does that account have.

99
00:06:18,710 --> 00:06:23,690
So for example, Christiano Ronaldo has 215 million followers,

100
00:06:23,900 --> 00:06:28,490
at least at the time when I compiled the data. And then it has a description,

101
00:06:28,580 --> 00:06:31,850
he's a footballer or this is a social media platform,

102
00:06:32,120 --> 00:06:35,960
she's a musician and actress. And finally the country that they're from.

103
00:06:36,230 --> 00:06:41,230
You're going to use all of these pieces of information to construct a comparison

104
00:06:41,750 --> 00:06:44,610
line like this, compare A: Cristiano Ronaldo

105
00:06:44,610 --> 00:06:46,850
a football from Portugal. We have B.

106
00:06:47,360 --> 00:06:52,360
And you're going to ask the user to guess who has more followers. And if they get

107
00:06:53,510 --> 00:06:58,280
it right, they get to keep playing, where A now becomes the previous B,

108
00:06:58,760 --> 00:07:02,960
so Vin Diesel who you used to be B now becomes A,

109
00:07:03,470 --> 00:07:08,470
and then you get to compare against a new person and it keeps on going until they

110
00:07:09,710 --> 00:07:13,340
get it wrong. That is the task ahead of you

111
00:07:13,670 --> 00:07:16,940
and it's not going to be easy, but I think you can do it.

112
00:07:17,330 --> 00:07:21,530
So give this project at least an hour. You'll need to write the code,

113
00:07:21,530 --> 00:07:23,840
you will need to fix problems, you'll need to debug,

114
00:07:24,080 --> 00:07:27,560
you will need to test it quite a few times. But by the end of it,

115
00:07:27,620 --> 00:07:30,110
you will emerge a stronger programmer

116
00:07:30,140 --> 00:07:35,140
I promise. So good luck and make sure you have lots of struggle and I'll see you

117
00:07:35,720 --> 00:07:36,560
on the other side.