WEBVTT 00:06.870 --> 00:07.980 Welcome back. 00:08.010 --> 00:11.460 Now we have a slingshot animation blueprint. 00:11.460 --> 00:15.090 And thanks to that, our goblin is holding the pouch. 00:15.090 --> 00:16.470 And that looks pretty great. 00:16.470 --> 00:18.990 But what about when firing the weapon? 00:19.110 --> 00:26.970 Well, when firing the weapon, we're going to want to play a fire montage for that weapon. 00:26.970 --> 00:30.530 And this is specific to the Goblin Slingshot enemy. 00:30.540 --> 00:37.650 So I think what we can do is we can have a Boolean on the Slingshot animation blueprint for whether 00:37.650 --> 00:44.580 or not we should actually be transform modifying the bone and while firing the weapon, we can set that 00:44.580 --> 00:48.590 to false and play that animation montage. 00:48.600 --> 00:52.550 So the way I'm going to handle this is my app. 00:52.560 --> 00:57.450 Slingshot is going to have a Boolean variable, so I'm going to add a variable here. 00:57.450 --> 01:00.870 I'm going to call this holding pouch. 01:01.850 --> 01:06.560 And holding pouch will be true by default. 01:06.560 --> 01:09.560 So I'm going to compile and set it to true. 01:09.680 --> 01:18.260 And in my animation blueprint here, I'm going to blend poses by bool so that if we're holding the pouch, 01:18.260 --> 01:22.250 we should not be using the transform modify bone pose. 01:22.250 --> 01:27.980 We should use just the default idle pose so I can take my slingshot idle. 01:29.300 --> 01:34.820 Animation, drag it out here and use a blend poses by bool. 01:36.410 --> 01:39.050 And simply check holding pouch. 01:39.050 --> 01:46.970 And if holding pouch is true, which it is by default, then we'll use this whole pose that we get from 01:46.970 --> 01:47.480 there. 01:47.510 --> 01:52.550 It doesn't matter if we use the slot or not, because while we're holding the pouch, we're not going 01:52.550 --> 01:55.160 to try playing any montages. 01:55.160 --> 02:00.110 So this will be for the true pose and the slingshot idol will be for the false pose. 02:00.110 --> 02:02.210 And we can go ahead and just hook that up. 02:03.600 --> 02:08.310 Now the question is, when do we change this holding pouch variable? 02:08.460 --> 02:13.650 Well, we can do so based on our Goblin's attack animation. 02:13.650 --> 02:21.720 So I'm going to go into my assets folder, into enemies goblin animations, slingshot, and check out 02:21.720 --> 02:25.080 my attack goblin slingshot montage. 02:25.110 --> 02:33.570 I can place a couple notifies here and in my Goblin Slingshot animation blueprint, I can access my 02:33.570 --> 02:37.920 weapons animation blueprint and set that holding pouch boolean. 02:37.920 --> 02:44.010 And if we really want to see what that slingshot looks like in that left hand, we can go to the weapon 02:44.010 --> 02:51.600 hand socket, we can add a preview asset and search for the slingshot and stick it on there so we can 02:51.600 --> 02:53.070 really kind of see what it looks like. 02:53.070 --> 02:56.490 We're not going to see that pouch on the hand, but that's okay. 02:56.880 --> 03:05.740 So what we want to do is as soon as we release that slingshot right about here, we are going to want 03:05.740 --> 03:07.870 to create an anim notify. 03:07.900 --> 03:10.060 So I'm going to add a new notify track. 03:10.090 --> 03:12.310 This will be for the Rock. 03:12.310 --> 03:13.740 I'm going to call it rock. 03:13.750 --> 03:18.850 I'm going to right click, add a notify, go to skeleton notifies. 03:18.850 --> 03:23.080 And in this asset pack, these two notifies already exist. 03:23.080 --> 03:27.940 Release rock and grab pouch and a new project. 03:27.940 --> 03:31.210 You would say new notify and call it what you want. 03:31.210 --> 03:36.670 But I'm going to use the two that exist here in this asset pack release rock. 03:36.670 --> 03:42.670 And then after releasing the Rock, we go back to about here where we can grab that pouch again. 03:42.670 --> 03:47.890 So right about here, I'm going to add another notify and choose that grab pouch. 03:47.890 --> 03:48.880 Notify. 03:48.910 --> 03:54.030 So these notify just exist already in this project, but you could just create new ones. 03:54.040 --> 03:55.300 It doesn't matter. 03:55.420 --> 04:03.370 Now what we need to do is respond to these in the Goblin Slingshot animation blueprint, and we can 04:03.370 --> 04:09.160 go to that animation blueprint with this icon up here hovering over it, we see a goblin slingshot. 04:09.190 --> 04:16.270 If we click on that now we're in the event graph for this particular Goblin Slingshot character. 04:16.570 --> 04:24.130 Now what I want to do is in the very beginning an event initialize animation, event, blueprint, initialize 04:24.130 --> 04:24.970 animation. 04:24.970 --> 04:32.740 I want to get the pawn owner and I want to access its weapon and from there get its weapons animation 04:32.740 --> 04:36.790 blueprint and then we'll have a reference to that slingshot and MVP. 04:37.150 --> 04:41.050 So we'll do a couple of casts, but this will only happen once here. 04:41.050 --> 04:50.200 What we'll do is we'll take the pawn owner we're going to cast to specifically Goblin Slingshot. 04:50.290 --> 04:55.690 And this is okay, because this animation blueprint is unique to the Slingshot Goblin. 04:55.690 --> 04:59.800 And as the Slingshot goblin, we're going to get its weapon. 04:59.800 --> 05:05.440 So we're going to search for weapon and we need that weapon to be exposed to the event graph. 05:05.440 --> 05:07.900 That means we're going to have to close down. 05:07.900 --> 05:13.360 We'll save all and go into our base character and expose that variable. 05:13.360 --> 05:20.500 So we'll go into character actually in our public folder character or a character base and find the 05:20.500 --> 05:21.100 weapon. 05:21.100 --> 05:23.530 It's in the protected section, it's edit anywhere. 05:23.530 --> 05:27.190 We also need this to be blueprint read only at least. 05:28.880 --> 05:32.420 So making that change, we can compile and launch again. 05:34.180 --> 05:39.970 And back in the editor, we can go back into the animation blueprint for the Goblin Slingshot. 05:39.970 --> 05:43.510 And now that we've exposed the weapon, we can get it. 05:43.840 --> 05:45.370 So get weapon. 05:45.370 --> 05:51.160 And from the weapon we want its animation blueprint to get that we call get anim instance. 05:51.190 --> 05:59.050 Now this returns the anim instance, but we have to cast that in turn to the Slingshot animation blueprint. 05:59.050 --> 06:02.200 So we're going to cast to a slingshot. 06:02.380 --> 06:04.910 That's the weapon animation blueprint. 06:04.930 --> 06:12.820 Once we have that, we can go ahead and promote this to a variable and call it a slingshot. 06:13.960 --> 06:22.570 Now that we have a slingshot, we're in business because now we can respond to those notifies release 06:22.570 --> 06:25.720 rock and grab pouch and set that boolean. 06:25.930 --> 06:29.770 So let's right click and type release rock. 06:30.970 --> 06:34.450 And we're going to get our app Slingshot. 06:34.480 --> 06:38.350 We can make this a validated get by right clicking and converting it. 06:38.350 --> 06:45.340 And from our app Slingshot, we can set that blueprint called, what was it called? 06:45.340 --> 06:46.630 Grabbing Pouch. 06:46.870 --> 06:47.830 Let's see. 06:47.830 --> 06:49.990 We'll go back to App Slingshot. 06:50.020 --> 06:51.820 It's called Holding Pouch. 06:55.030 --> 06:57.850 So we can get the setter for holding pouch. 06:57.850 --> 07:01.410 And if we're releasing the rock, we want to set this to false. 07:01.420 --> 07:03.010 So that's what we're going to do. 07:03.040 --> 07:05.050 We're going to release that pouch. 07:05.570 --> 07:14.420 Now, in the case that this up here failed for whatever reason, if it was called too early before the 07:14.420 --> 07:23.390 Slingshot animation blueprint was valid or whatever reason we could take the is not valid and go through 07:23.390 --> 07:32.300 this whole process again, as in try get pawn owner cast to Goblin Slingshot get its weapon. 07:32.330 --> 07:38.000 This whole thing we could just duplicate down here and hook it up to is not valid. 07:38.150 --> 07:42.110 In that case, that would take care of the not valid case. 07:42.230 --> 07:45.680 But as soon as it's valid, it'll never be not valid again. 07:45.680 --> 07:48.590 So we don't have to worry too much about that. 07:49.170 --> 07:56.820 Now, as soon as we release the pouch, we could play that montage, that animation for our slingshot, 07:56.850 --> 07:58.920 that slingshot attack animation. 07:58.920 --> 08:00.360 We can find that. 08:00.360 --> 08:02.410 It's called Slingshot Attack. 08:02.430 --> 08:06.640 We can browse to it and we can make an animation montage for it. 08:06.660 --> 08:15.180 We can right click create, create an a montage, call it a m, underscore slingshot, underscore attack. 08:15.600 --> 08:18.420 So we have this slingshot attack montage. 08:18.420 --> 08:19.860 We could play that. 08:19.890 --> 08:23.610 We can do that right after setting holding pouch to false. 08:23.610 --> 08:31.740 So what we could do is take the A slingshot that animation blueprint and call montage play. 08:35.700 --> 08:39.240 And we can play that montage. 08:39.240 --> 08:41.910 We can just select it from the dropdown. 08:43.010 --> 08:44.270 Searching for Slingshot. 08:44.300 --> 08:47.480 We have slingshot attack and we can play it there. 08:48.530 --> 08:49.160 Okay. 08:49.160 --> 08:52.100 So that takes care of releasing the rock. 08:52.100 --> 08:55.340 But then when we grab the pouch, we need to handle that case. 08:55.340 --> 09:03.200 So we're going to right click and use our grab pouch and notify and we're going to copy these nodes 09:03.200 --> 09:07.640 and paste them so that we can set holding pouch to true. 09:07.640 --> 09:13.820 Again, I'm not concerned with the not valid case because by this time we know that we've released the 09:13.820 --> 09:14.720 Rock first. 09:14.720 --> 09:20.240 So by the time we hit Grab Pouch, it's definitely valid, that animation blueprint variable. 09:20.450 --> 09:27.470 So now if our goblins attack happens, we know that it's going to get that animation blueprint for the 09:27.470 --> 09:28.250 slingshot. 09:28.250 --> 09:33.890 It's going to set that holding pouch boolean and it's going to play the montage for it. 09:33.890 --> 09:40.820 So we should be able to see all that when our goblin attacks when it shoots at us. 09:43.220 --> 09:46.190 And it's a little hard to see, but I can definitely see it. 09:46.220 --> 09:49.400 We can, of course, zoom in a bit. 09:49.430 --> 09:56.480 We can even go to another map so that we only have just a goblin slingshot here. 09:56.630 --> 09:59.330 And that will allow us to see a little better. 09:59.330 --> 10:05.200 And why don't we just really quick go to our blueprints character. 10:05.620 --> 10:08.150 Ora ora character. 10:08.150 --> 10:10.790 We can bring in that spring arm a bit. 10:10.790 --> 10:12.050 It's at 800. 10:12.080 --> 10:14.210 We're going to bring it in to about four. 10:14.940 --> 10:16.200 360 or so. 10:16.200 --> 10:17.280 And. 10:18.140 --> 10:20.090 Let's see if we can get a better look. 10:21.000 --> 10:24.270 And there's that slingshot attacking. 10:24.270 --> 10:25.770 Look at that stretch. 10:25.770 --> 10:27.060 That looks great. 10:27.090 --> 10:27.990 I know. 10:27.990 --> 10:30.600 It just killed Aura and it's still firing. 10:30.600 --> 10:32.070 That's something we have to deal with. 10:32.070 --> 10:33.420 But look at that. 10:33.420 --> 10:34.860 That is looking nice. 10:34.860 --> 10:40.830 We can even eject and kind of zoom in and just admire how this looks. 10:40.830 --> 10:42.750 This is really pretty cool. 10:42.750 --> 10:51.030 And this concept can be used for bow and arrow characters for crossbows, really anything that requires 10:51.030 --> 10:53.490 movement on that weapon. 10:53.610 --> 10:56.190 So that is super cool. 10:56.280 --> 11:02.190 Now, back here in the other level, let's just make sure things are looking good over here, make sure 11:02.190 --> 11:04.200 there isn't anything too crazy. 11:04.230 --> 11:10.380 One thing I'm noticing and I don't know if I can repro it here, is that the rocks are blocking the 11:10.380 --> 11:11.550 camera channel. 11:11.550 --> 11:15.270 In fact, I don't think the rocks should block anything. 11:15.270 --> 11:18.750 We have our overlap events for things like that. 11:18.750 --> 11:22.600 So I'm just going to go to the Slingshot rock. 11:23.230 --> 11:30.460 And I might have to go into blueprints, ability system, enemy abilities and slingshot rock. 11:30.550 --> 11:34.630 And I'm going to take the rock mesh and disable collision on it. 11:34.630 --> 11:36.940 I don't want it interacting with anything. 11:38.300 --> 11:40.220 So I'm going to set it to no collision. 11:40.220 --> 11:47.630 And the sphere itself should already be ignoring camera and visibility and the sphere could be a little 11:47.630 --> 11:49.040 bit smaller, I think. 11:49.040 --> 11:53.450 But again, we don't want too much precision in a top down. 11:53.450 --> 11:59.960 We can have a little bit of leeway when it comes to these collision volumes as everything will be zoomed 11:59.960 --> 12:00.440 out. 12:00.440 --> 12:00.950 Right. 12:00.950 --> 12:08.330 Aura is not always going to be with the spring arm length of 360, it's more likely going to be 800. 12:08.330 --> 12:12.950 Unless, of course, we make that something you could change in game, but this is more likely. 12:12.950 --> 12:20.960 And so for that reason we don't really want a really small sphere for those projectiles. 12:21.140 --> 12:21.710 All right. 12:21.710 --> 12:27.680 And one last thing that I'm noticing is my slingshot goblins are actually sliding now. 12:27.710 --> 12:33.290 I don't see them running and that means I broke something. 12:33.290 --> 12:40.710 So let's go into the animation blueprint and notice that we're depending on some things happening in 12:40.710 --> 12:42.480 the Parent Blueprint event. 12:42.480 --> 12:48.450 Update Animation is calling the parent version, but now we're using initialize animation that's not 12:48.450 --> 12:49.800 calling the parent version. 12:49.800 --> 12:55.560 So we're going to have to right click and add a call to the parent function and let's make sure that 12:55.560 --> 13:00.960 we're calling that so that everything is initialized on the parent as well. 13:00.960 --> 13:07.260 So now if we press play, now they're running with their tiny little cute legs and everything's looking 13:07.260 --> 13:07.890 great. 13:08.040 --> 13:08.940 Excellent. 13:09.390 --> 13:10.800 See you in the next video.