1
00:00:00,570 --> 00:00:01,290
Hey there.

2
00:00:01,290 --> 00:00:06,540
In this lecture, we're now going to be scripting the UI for our guns to display how much ammo is in

3
00:00:06,540 --> 00:00:10,530
our magazines, as well as how much reserve ammo we have left in our gun.

4
00:00:10,530 --> 00:00:16,440
So if I shoot my gun, as you can see, the magazine ammo goes down and then when I reload, it'll display

5
00:00:16,440 --> 00:00:20,490
a message of reloading and then it subtracts that from our reserve ammo.

6
00:00:20,490 --> 00:00:22,020
So let's get started.

7
00:00:24,130 --> 00:00:29,260
Inside of the local script we've been editing for our guns, we can go ahead and grab the guy that's

8
00:00:29,260 --> 00:00:32,290
inside of each one of our guns, which is called our gun guy.

9
00:00:32,650 --> 00:00:38,230
We'll make a variable called Guy, and that's going to be equal to our gun dot gun guy.

10
00:00:38,960 --> 00:00:44,570
And now what we can go ahead and do is when we scroll down and we equip our gun, we want to go ahead

11
00:00:44,570 --> 00:00:50,900
and display it on our screen so we can change the parent of our gun guy to be equal to our players player

12
00:00:50,900 --> 00:00:54,290
guy folder, and that will allow it to render onto the screen.

13
00:00:55,130 --> 00:00:59,480
And then when we unequip our guns, we want to go ahead and put the guy back inside of the gun.

14
00:00:59,480 --> 00:01:06,200
So right here we can go ahead and refer to guy and set the parent back equal to be inside of our tool.

15
00:01:06,530 --> 00:01:12,440
Now in order to display when the ammo in our gun changes, we can go ahead and listen to the attribute

16
00:01:12,440 --> 00:01:18,260
changed event on our guns, which will notify us when either the ammo and our magazine or the ammo reserve

17
00:01:18,260 --> 00:01:23,090
attribute has been updated by the server, and then we can go ahead and display that new value on our

18
00:01:23,090 --> 00:01:23,840
guy.

19
00:01:23,840 --> 00:01:29,600
So we'll refer to our gun, get the attribute changed event, and then we'll connect a function.

20
00:01:29,600 --> 00:01:33,200
And this will get passed the name of the attribute that got changed.

21
00:01:33,200 --> 00:01:34,490
So we'll just call it name.

22
00:01:34,790 --> 00:01:41,840
Then we can go ahead and check to see if the name is equal to our ammo and mag attribute.

23
00:01:41,840 --> 00:01:48,590
If it is, then inside of our GUI and inside of the frame, we have the mag ammo text, and we can go

24
00:01:48,590 --> 00:01:55,040
ahead and update the text inside of there to be equal to something like mag ammo, and then we can go

25
00:01:55,040 --> 00:01:59,120
ahead and concatenate this with the gun's current ammo that's in the magazine.

26
00:01:59,120 --> 00:02:02,330
So we'll do get attribute ammo in mag.

27
00:02:02,960 --> 00:02:08,750
Otherwise we can check if this attribute that changed is the ammo reserve attribute, and if it is,

28
00:02:08,750 --> 00:02:10,760
we can do the exact same thing that we did here.

29
00:02:10,760 --> 00:02:14,540
But this time we want to change the reserve ammo text.

30
00:02:15,520 --> 00:02:20,620
And here we can say something like reserve ammo and then we'll get the attribute.

31
00:02:20,980 --> 00:02:22,540
Ammo reserve.

32
00:02:23,120 --> 00:02:28,160
So now our guy is going to update when either of these two attributes inside of our gun changes, which

33
00:02:28,160 --> 00:02:29,000
is very cool.

34
00:02:30,340 --> 00:02:36,130
Now, something to note is that by default, if I go and move one of my guys into my starter GUI folder

35
00:02:36,130 --> 00:02:38,350
and then let me enable UI visibility.

36
00:02:38,350 --> 00:02:41,200
As you can see, by default the text is blank.

37
00:02:41,200 --> 00:02:47,320
So when this local script inside of our gun first executes, what we want to do is down in this main

38
00:02:47,320 --> 00:02:52,810
section, we want to go ahead and update the text inside of our gun, so we can just copy this and paste

39
00:02:52,810 --> 00:02:57,520
that down there, and then copy this and paste that down there as well.

40
00:02:58,660 --> 00:03:02,170
Now, the next thing we want to do is we want to go ahead and listen for when our gun is reloading,

41
00:03:02,170 --> 00:03:07,210
and then update the text inside of our gun to say, reloading, and then revert it back to the original

42
00:03:07,210 --> 00:03:10,330
text so we can go to our reload function.

43
00:03:11,050 --> 00:03:15,970
And inside of here, when we're reloading, what we can go ahead and do is.

44
00:03:16,760 --> 00:03:22,160
You can go ahead and refer to our guy, get the frame, and then get the mag ammo text and update the

45
00:03:22,160 --> 00:03:25,730
text inside of it to be equal to something like reloading.

46
00:03:26,150 --> 00:03:31,280
And when the gun is finished reloading, that attribute changed event will automatically fire because

47
00:03:31,280 --> 00:03:35,570
the server will update the attributes inside of our gun, it'll reset the text.

48
00:03:35,570 --> 00:03:42,650
However, we also need to account for the fact that we may not fire to the server to validate our reload

49
00:03:42,650 --> 00:03:49,580
if we unequipped our gun, so we can put an else statement here to check to see, just in case our player

50
00:03:49,580 --> 00:03:55,880
unequipped our gun during the reload animation, and we want to go ahead and update the text back to

51
00:03:55,880 --> 00:03:57,980
the default of mag ammo.

52
00:03:58,600 --> 00:04:03,220
And then we concatenate that with gun get attribute ammo in mag.

53
00:04:03,220 --> 00:04:06,580
And I believe that's all we need to do to implement our GUI.

54
00:04:06,580 --> 00:04:13,840
So we can go ahead and copy our gun from the tools folder, place it inside of our starter pack, and

55
00:04:13,840 --> 00:04:16,810
let's go ahead and see if it's working as we'd expect.

56
00:04:20,180 --> 00:04:21,110
This is why I go and play test.

57
00:04:21,110 --> 00:04:23,930
My game here and I were to equip my gun.

58
00:04:23,930 --> 00:04:24,680
There we go.

59
00:04:24,680 --> 00:04:28,520
It tells us the current ammo in our magazine as well as our reserve ammo.

60
00:04:28,520 --> 00:04:33,890
And then if I were to shoot my gun, as you can see the attribute on our gun updated so it also updated

61
00:04:33,890 --> 00:04:34,550
the text.

62
00:04:34,550 --> 00:04:38,270
And then if I hit R and reload, as you can see it says reloading.

63
00:04:38,910 --> 00:04:43,650
And then both the magazine ammo and the reserve ammo has been updated.

64
00:04:43,650 --> 00:04:44,460
Very cool.

65
00:04:45,280 --> 00:04:51,700
Now, if I shoot and then I reload and I unequip in the middle of my reloading animation, then it should

66
00:04:51,700 --> 00:04:54,580
reset the text to go back to the default.

67
00:04:54,580 --> 00:04:59,830
So if I equip it again, as you can see, we're back to mag ammo and it still says we only have 18 bullets,

68
00:04:59,830 --> 00:05:01,180
but if I reload again.

69
00:05:03,090 --> 00:05:07,410
Now it is updated back to 20 bullets and it removed some from our reserve ammo.

70
00:05:07,410 --> 00:05:08,190
Very cool.

71
00:05:09,660 --> 00:05:11,880
Okay, so we're almost done with our guns.

72
00:05:11,880 --> 00:05:14,580
The last thing we're going to need to do is add hit markers.

73
00:05:14,580 --> 00:05:18,090
When we hit a character model, and our guns will be completed.

74
00:05:18,090 --> 00:05:20,190
I'll see you in the next lecture.