1 00:00:02,940 --> 00:00:06,880 In this lecture, we're going to add some sound effects so that when the player touches the coin, it 2 00:00:06,880 --> 00:00:07,840 goes diddling. 3 00:00:07,840 --> 00:00:10,500 And you know that you've picked up the coin. 4 00:00:10,510 --> 00:00:14,950 I've given you a sound effect that I made myself in audacity for this particular lecture. 5 00:00:14,950 --> 00:00:19,660 You can download that against this lecture, and I've got a challenge for you right from the get go, 6 00:00:19,660 --> 00:00:23,950 and that is to use play clip at point to play a sound effect when you pick up the coin. 7 00:00:23,950 --> 00:00:28,630 Now, I'm going to be using a very, very simple implementation for this approach. 8 00:00:28,630 --> 00:00:30,580 There's more complicated ways of doing this. 9 00:00:30,580 --> 00:00:35,410 In previous sections of the course, we've made a an audio manager that has all of our different sound 10 00:00:35,410 --> 00:00:38,740 effects in it, and then we call publicly from other classes. 11 00:00:38,740 --> 00:00:44,260 What I'm going to do is just the very quick and dirty, simple, putting the play clip at point, actually 12 00:00:44,260 --> 00:00:49,000 within our coin pick up script so that we can quickly have some sound effect playing. 13 00:00:49,000 --> 00:00:54,340 You can do it either of those two ways if you want to try the more, I guess, proper way of doing things. 14 00:00:54,340 --> 00:00:58,540 And you can set up an audio controller that has all of the different sound effects being fed into it. 15 00:00:58,540 --> 00:01:01,930 Or you can just do the quick and dirty way, which is what I'll be doing as well. 16 00:01:01,930 --> 00:01:05,410 But it's good to see different ways of doing things, so then you can make your own opinion on these 17 00:01:05,410 --> 00:01:05,620 things. 18 00:01:05,620 --> 00:01:06,700 So there's a challenge. 19 00:01:06,700 --> 00:01:07,390 Positive video. 20 00:01:07,420 --> 00:01:09,160 See you back here when you've given it a go. 21 00:01:11,560 --> 00:01:12,790 First step in the process. 22 00:01:12,790 --> 00:01:16,150 I need a new folder which is right click Create Folder. 23 00:01:16,150 --> 00:01:19,930 I'll call this audio within audio double click to open that up. 24 00:01:19,930 --> 00:01:26,440 I'm going to drag in my sound effects coin pickup and it sounds something like now back into my script, 25 00:01:26,440 --> 00:01:27,460 so I'm going to do this quick way. 26 00:01:27,460 --> 00:01:29,200 You've got a couple of different ways to play sound. 27 00:01:29,200 --> 00:01:34,270 You can just say play sound, but because when we're triggering, when the coin is being bumped into 28 00:01:34,270 --> 00:01:36,430 by the player, we're destroying it straight away. 29 00:01:36,430 --> 00:01:38,320 So we need something that sticks around. 30 00:01:38,320 --> 00:01:41,890 That's why we're using play clip at point as opposed to just play. 31 00:01:41,890 --> 00:01:48,430 If you have just play something in here like some sort of SFX Dot play, obviously we'd write the code 32 00:01:48,430 --> 00:01:49,360 more properly than that. 33 00:01:49,360 --> 00:01:53,500 But if you're just using play, then at the moment it starts to play. 34 00:01:53,500 --> 00:01:58,450 It's also destroying itself and that sound goes away along with the audio source and all the other things 35 00:01:58,450 --> 00:02:00,550 that are living on the game object. 36 00:02:00,550 --> 00:02:04,990 Which reminds me, let's go over to our coin prefab prefabs coin. 37 00:02:04,990 --> 00:02:09,520 In addition to these other things, we need to have an audio source so we have something that can actually 38 00:02:09,520 --> 00:02:11,050 be playing these things. 39 00:02:11,050 --> 00:02:13,000 We want it to play within audio source. 40 00:02:13,000 --> 00:02:15,280 We've got some settings in there that we've played around with before. 41 00:02:15,310 --> 00:02:16,030 Play on Awake. 42 00:02:16,030 --> 00:02:17,140 We'll turn that off now. 43 00:02:17,140 --> 00:02:23,140 Within my coin pick up class, I'm going to Serialize Field and I'll create an audio clip. 44 00:02:23,650 --> 00:02:26,470 That's the thing we're going to play and I'll call it Coin. 45 00:02:27,760 --> 00:02:30,600 Pick up as f x semicolon. 46 00:02:30,610 --> 00:02:35,720 Now I'm going to jump down into my on trigger just above destroying in here. 47 00:02:35,740 --> 00:02:41,590 Now we want to be accessing audio source and as we've talked about, play clip at point y play clip 48 00:02:41,590 --> 00:02:46,900 at point well that instantiate the audio so that when we destroy this object, it will still stick around. 49 00:02:46,900 --> 00:02:47,800 What are we playing? 50 00:02:47,800 --> 00:02:52,390 We're going to play the coin pick up SFX and where are we going to play that? 51 00:02:52,390 --> 00:02:56,800 We're going to play it at the position of the camera y the position of the camera. 52 00:02:56,800 --> 00:03:03,850 Well, if we just jump quickly into 3D view, you can see in here that the coin play clip a point, 53 00:03:03,850 --> 00:03:06,400 you can see my little sound thingy on it there. 54 00:03:06,400 --> 00:03:09,010 It's pretty small, so it'll play it right there in 3D space. 55 00:03:09,010 --> 00:03:10,440 However, the camera is over here. 56 00:03:10,460 --> 00:03:12,100 The camera is the thing that's listening. 57 00:03:12,100 --> 00:03:14,950 That's our headset or that's our headphones, if you will. 58 00:03:14,960 --> 00:03:18,580 If we're running around in a3d game, it's kind of nice to have a sound over there. 59 00:03:18,580 --> 00:03:22,600 Sound to the right and a sound over there, sound on the left or a distant or closer. 60 00:03:22,600 --> 00:03:23,590 That's a good thing to do. 61 00:03:23,590 --> 00:03:28,450 But in a2d game, we want to have the sound play the same no matter where it is on the screen. 62 00:03:28,450 --> 00:03:29,500 Well, that's what I want anyway. 63 00:03:29,500 --> 00:03:33,700 So we need to say play the sound right at where the camera is. 64 00:03:33,700 --> 00:03:42,550 The way we do that is by accessing camera dot main because it's the main camera and it's transform dot 65 00:03:42,550 --> 00:03:43,450 position. 66 00:03:43,450 --> 00:03:49,690 We can also add in here if we wanted to add a third parameter, we can add in the volume and that's 67 00:03:49,690 --> 00:03:50,500 a flute. 68 00:03:50,500 --> 00:03:55,540 So I could say if I don't want the coin to be too loud, I could add in here a lower volume. 69 00:03:55,570 --> 00:03:56,750 I can leave that where it is for now. 70 00:03:56,770 --> 00:04:01,540 Don't worry about putting the volume in it because I can adjust the volume over here on the actual game 71 00:04:01,540 --> 00:04:03,760 object itself so I could drag the volume down. 72 00:04:03,760 --> 00:04:05,800 So I'm not going to worry about doing it in code. 73 00:04:05,800 --> 00:04:07,780 This is a fairly quick implementation. 74 00:04:07,780 --> 00:04:12,490 Why am I not going through a bigger, more detailed implementation where we have an audio manager that's 75 00:04:12,490 --> 00:04:13,870 got all the different sound effects in it? 76 00:04:13,870 --> 00:04:16,420 Well, at this stage I've only got one sound effect in my game. 77 00:04:16,420 --> 00:04:17,769 That's all I want to implement. 78 00:04:17,769 --> 00:04:22,510 And I want to do this in a way so you can see if you're prototyping something, if you're messing around 79 00:04:22,510 --> 00:04:27,850 with it, if you want quick results, you don't have to go and implement the big proper full super architected 80 00:04:27,850 --> 00:04:28,210 approach. 81 00:04:28,210 --> 00:04:30,850 You can just say quickly bump play clip at point. 82 00:04:30,850 --> 00:04:32,560 That means it won't be destroyed. 83 00:04:32,560 --> 00:04:39,460 And if we click on Save jump back over into Unity, then we can decide what the sound effect is by clicking 84 00:04:39,460 --> 00:04:44,680 on our coin prefab and then scrolling around to see where the coin pick up sound effects is. 85 00:04:44,680 --> 00:04:47,110 And that's going to come from our audio folder. 86 00:04:47,110 --> 00:04:50,290 Drag that on in, and that is the sound effect we're going to use. 87 00:04:50,290 --> 00:04:53,920 So that for me is one of the simplest ways to get sound effects into your game that stick around. 88 00:04:53,920 --> 00:04:57,100 Nice and simple, let's click on place if it's actually worked. 89 00:04:58,000 --> 00:05:00,820 But then there we go. 90 00:05:00,850 --> 00:05:04,810 So just some very simple sound effects to get us going along that road to get a little bit of audio 91 00:05:04,810 --> 00:05:05,680 into our game. 92 00:05:05,680 --> 00:05:07,750 You can go and add some other sound effects if you want. 93 00:05:07,750 --> 00:05:11,830 For when the bullet hits the wall, the bullet hits an enemy or the bullet hits other things. 94 00:05:11,830 --> 00:05:16,420 And as I've said a couple of times in this lecture, if you want to do a more full implementation, 95 00:05:16,420 --> 00:05:21,070 then create yourselves an audio manager, as we've done in other sections of the course, and you can 96 00:05:21,070 --> 00:05:23,710 go about getting more structure to it. 97 00:05:23,710 --> 00:05:27,760 But for now, I just wanted to do a quick sound effect and to move on to the next part of what we're 98 00:05:27,760 --> 00:05:28,540 doing in our game. 99 00:05:28,540 --> 00:05:29,200 So good stuff. 100 00:05:29,200 --> 00:05:30,280 I'll see you in the next lecture.