WEBVTT 00:07.710 --> 00:08.940 Welcome back. 00:08.940 --> 00:14.460 Now we have a beautiful fireball effect, but it doesn't really cause any damage. 00:14.460 --> 00:16.800 We need to take care of that. 00:17.100 --> 00:23.640 So we'll start by specifying how much damage our fire blast ability should cause. 00:23.970 --> 00:29.220 Now that means it needs some parameters in here to be set right. 00:29.460 --> 00:38.700 So what we're going to do is first go to blueprints ability system data and open up our CT damage. 00:39.180 --> 00:43.560 And our fire blast ability doesn't exist here. 00:43.560 --> 00:49.830 So we need to add a curve, rename it and call this abilities dot fire blast. 00:50.960 --> 00:53.330 And I'm going to go ahead and add two keys. 00:53.330 --> 00:54.980 One, two. 00:55.010 --> 00:57.140 Now this one is going to be at one. 00:57.140 --> 01:02.810 And it's going to cause we'll say 15 damage per fireball. 01:02.840 --> 01:08.210 Now this key which looks like it's the first one I've made this mistake before. 01:08.240 --> 01:10.100 This was the one I just set. 01:10.100 --> 01:11.900 This was the one I haven't set yet. 01:11.900 --> 01:15.020 That's going to be at level 40. 01:15.020 --> 01:15.800 And I'll make it. 01:15.800 --> 01:17.750 Let's just make it 150. 01:17.870 --> 01:20.120 Now, this will be per fireball. 01:21.010 --> 01:24.520 And I'm going to make it a auto curve like this. 01:26.910 --> 01:27.690 Okay, cool. 01:27.690 --> 01:30.240 So we have fire blast in our CT damage. 01:30.240 --> 01:35.910 We can go back to our fire blast ability and we can start setting some of our properties here. 01:35.910 --> 01:37.980 Now we have damage type. 01:37.980 --> 01:40.260 I'm going to set this to of course fire. 01:40.260 --> 01:40.890 Right. 01:41.870 --> 01:47.210 And damage is going to use CT damage scaled by abilities. 01:47.210 --> 01:53.060 Fire blast debuff charts can be 2025 whatever we want. 01:53.420 --> 01:55.760 Debuff damage I'm going to let it be five. 01:55.760 --> 01:57.740 Debuff frequency can be one. 01:57.740 --> 02:00.170 Debuff duration can be five. 02:00.170 --> 02:03.920 Again, these could all be curved tables if you wanted them to be. 02:04.370 --> 02:10.160 I'm going to leave death impulse magnitude at a thousand, but I'm going to set knockback force magnitude 02:10.160 --> 02:13.940 to zero because these fireballs are going to pass through things. 02:13.940 --> 02:21.020 I only want to add a death impulse if it kills them, but the knockback force is going to be zero because 02:21.020 --> 02:24.920 I don't want to knock back until we get to the explosion at the end. 02:24.920 --> 02:29.600 So knockback chance is also going to be zero and I'm going to leave. 02:29.600 --> 02:31.220 Is radial damage unchecked? 02:31.220 --> 02:37.070 I'd like this to be not radial, at least for the damage from overlapping. 02:37.070 --> 02:39.920 Once we get to the explosion, that's another story. 02:39.920 --> 02:42.410 Okay, so we're going to leave it like this. 02:43.120 --> 02:48.640 And with that, we just need to make sure that we're causing damage on overlap. 02:48.640 --> 02:50.980 And for that I'm going to go into C plus plus. 02:50.980 --> 02:58.150 So closing the editor I'm going to go into my fireball on sphere overlap function here. 02:58.150 --> 03:01.750 And here's where I'd like to configure some things. 03:02.410 --> 03:07.390 First, we know that we have if we go to our fire blast damage effect params. 03:08.760 --> 03:10.680 So this is great. 03:10.680 --> 03:18.210 We have damage effect params set from our class defaults, but we need to set a few things because on 03:18.210 --> 03:22.140 overlap is when we actually have access to the overlapped actor. 03:22.960 --> 03:24.490 And we can check some things. 03:24.490 --> 03:28.840 If we go to Aura Projectile, we can see some of the things we're checking here. 03:28.840 --> 03:33.700 We're checking the source ability system component making sure that's not null. 03:33.730 --> 03:39.880 We're getting our source avatar actor from the effect params and making sure it's not the other actor. 03:39.880 --> 03:42.610 We're making sure the other actor is not a friend. 03:42.610 --> 03:45.310 And then if we haven't already hit, we call on hit. 03:45.310 --> 03:46.900 That's not what we want to do. 03:46.900 --> 03:53.680 But these other things we do want to do so we can copy them, or we can simply make them a protected 03:53.680 --> 03:54.550 function. 03:54.880 --> 04:03.820 So or a projectile in the protected section this can be a bool returning function called is valid overlap. 04:04.720 --> 04:06.580 And it can check those conditions. 04:06.580 --> 04:11.920 So here in generate definition we're going to copy these lines where we're checking things. 04:13.890 --> 04:17.160 And we can check the damage effect params. 04:17.160 --> 04:19.740 If it's null, we can return false. 04:20.750 --> 04:25.520 We can check the source avatar actor, see if it's equal to the other actor. 04:25.520 --> 04:27.800 Which, by the way, we should pass into this, right? 04:27.800 --> 04:29.450 So let's pass it in. 04:29.750 --> 04:30.680 A actor. 04:31.760 --> 04:32.870 Other actor. 04:38.340 --> 04:42.480 And if source avatar is equal to other actor, return false. 04:43.180 --> 04:46.480 And we can also check is not friend and return false. 04:46.480 --> 04:52.150 So basically all of these conditions can cause us to not want to return. 04:52.150 --> 05:01.300 Basically we'll just replace these right here with if is valid overlap and if is valid overlap returns 05:01.300 --> 05:03.310 false return. 05:03.310 --> 05:04.090 Right. 05:04.090 --> 05:06.820 And we of course have to pass in other actor. 05:08.780 --> 05:15.170 And we can just use this line and on a sphere overlap in or a fireball. 05:16.280 --> 05:18.320 So that gives us an early out. 05:19.400 --> 05:24.200 Now, after that, let's take a look at how we're calculating death impulse here. 05:25.660 --> 05:28.510 We're getting the target ability system component. 05:28.510 --> 05:36.250 We're getting the forward vector of our projectile multiplying by death impulse magnitude and setting 05:36.250 --> 05:37.750 the death impulse here. 05:38.350 --> 05:40.120 We can do that same thing. 05:40.360 --> 05:46.240 Now it also sets knockback, which we don't want to do, but after that we're setting the target ability 05:46.240 --> 05:50.350 system component and we're applying the damage effect. 05:50.590 --> 05:53.830 So this is almost all the stuff we want to do. 05:53.860 --> 05:56.200 So why don't we just copy this. 05:56.200 --> 05:59.800 In fact we can just copy everything up to destroy. 05:59.800 --> 06:02.830 And even the else case where we're setting be hit to true. 06:02.860 --> 06:04.330 We can copy all this. 06:05.140 --> 06:06.970 And come back to Aura Fireball. 06:06.970 --> 06:07.990 Paste it in. 06:08.650 --> 06:14.350 We're going to want to include Ability System, Blueprint Library and Aura Ability System library as 06:14.350 --> 06:15.040 well. 06:15.400 --> 06:18.040 And of course, Be Hit is inaccessible. 06:18.040 --> 06:21.670 That's a private variable that's going to need to become protected. 06:22.270 --> 06:26.470 So we'll just drag it right on up to the protected section. 06:26.470 --> 06:27.550 No problem. 06:29.140 --> 06:31.210 And now an aura fireball. 06:31.210 --> 06:35.320 We just want to do all of this stuff except for knockback. 06:35.320 --> 06:38.320 This is not going to be a knockback effect. 06:39.370 --> 06:45.400 So we're setting the death impulse, setting the target AC and applying the damage effect. 06:45.400 --> 06:49.480 So this is all that we need to do except let's think about this. 06:49.510 --> 06:51.010 We don't want to destroy. 06:51.010 --> 06:54.010 So we actually don't want that call. 06:54.010 --> 06:55.990 And we don't want to set be hit to true. 06:55.990 --> 06:59.170 That's for when we explode on contact with things. 06:59.170 --> 07:02.980 So actually that's stuff we want out of this function. 07:02.980 --> 07:06.220 All we want to do is apply the damage gameplay effect. 07:06.250 --> 07:10.990 So let's compile and see how this works and is valid. 07:10.990 --> 07:15.100 Overlap does not return from all control paths. 07:15.100 --> 07:21.850 And that's of course because we should have a return statement at the end that returns true obviously. 07:22.720 --> 07:26.710 And if we don't return early from all these, we return true. 07:28.110 --> 07:30.360 And we don't get the early return here. 07:30.750 --> 07:31.410 Okay. 07:31.410 --> 07:32.460 Let's compile. 07:33.570 --> 07:34.470 All right. 07:34.470 --> 07:37.680 I'm going to go ahead and open up my asset editors. 07:37.680 --> 07:39.180 I'm done with CT damage, though. 07:39.180 --> 07:46.590 For now I'm going to keep Fireball and Fire Blast open, and I just want to see if my fireballs pass 07:46.590 --> 07:49.290 through things and cause damage on the way. 07:49.860 --> 07:51.990 Oh, and they do. 07:53.410 --> 07:55.690 They caused kind of a lot, didn't they? 07:59.670 --> 08:02.580 This ability might be a little too op. 08:04.670 --> 08:06.110 Let's find out. 08:06.140 --> 08:09.980 We're launching 12 fireballs, each causing 15 damage. 08:11.750 --> 08:13.730 It seemed like we did too much. 08:13.730 --> 08:15.500 That was nine, right? 08:22.210 --> 08:22.660 Okay. 08:22.660 --> 08:24.370 That did 13. 08:29.630 --> 08:31.220 Let's see how much this causes. 08:34.680 --> 08:36.150 Trying to hit this guy. 08:37.660 --> 08:38.050 There. 08:38.050 --> 08:42.370 We did 13 and 13 back on the way back in. 08:42.580 --> 08:48.190 So I think we're doing enough or an appropriate amount, I should say so. 08:48.190 --> 08:49.570 And it's a higher level skill. 08:49.570 --> 08:54.970 I mean, I did set its level requirement to two, but realistically this would be up there, right? 08:54.970 --> 08:59.140 Probably level seven, eight, maybe even 9 or 10. 08:59.140 --> 09:00.880 So I think that's fine. 09:03.450 --> 09:05.850 Awesome and it also has a burn chance. 09:05.850 --> 09:09.120 So let's just make sure that we get some burns. 09:10.510 --> 09:14.110 Not sure what my ghouls starting stats are. 09:14.140 --> 09:15.670 Let's just see. 09:20.090 --> 09:22.400 It starts as a level one warrior. 09:23.960 --> 09:26.630 Initial primary values. 09:27.590 --> 09:30.530 Let's go to character Classinfo look at warrior. 09:30.530 --> 09:33.560 We have GE primary attributes. 09:33.560 --> 09:34.640 Warrior. 09:39.460 --> 09:44.530 We start the warrior off with vigor based on primary attributes. 09:44.530 --> 09:45.490 Warrior. 09:47.280 --> 09:53.760 And at level one, its vigor is 11, so it's going to have a pretty low health value. 09:54.270 --> 09:57.090 So yes, it's going to have a low health. 09:57.090 --> 10:01.920 So a higher level ability like this is going to cause some damage right. 10:02.040 --> 10:02.940 Okay. 10:03.420 --> 10:03.750 Oops. 10:03.750 --> 10:06.000 Wrong spell I meant to press two. 10:08.250 --> 10:08.730 Excellent. 10:08.760 --> 10:12.390 Now we also want an explosion. 10:12.390 --> 10:15.630 And that's going to be a completely different effect. 10:15.630 --> 10:16.290 Right. 10:16.290 --> 10:17.790 But we can do that. 10:17.790 --> 10:20.040 We can go back to BP fireball. 10:20.040 --> 10:24.150 And we know right here that we're going to do on hit. 10:24.150 --> 10:30.030 And before we destroy the actor, we are going to want to do something like apply damage. 10:30.030 --> 10:30.750 Right. 10:31.370 --> 10:39.200 And I'd like to apply radial damage, which means I'd like my fireball to have another set of damage 10:39.200 --> 10:39.920 parameters. 10:39.920 --> 10:45.590 And these ones can be set to use knockback, radial damage, and what have you. 10:45.590 --> 10:48.530 And we're going to add that to this class and we'll do that next. 10:48.830 --> 10:51.200 So great job and I'll see you soon.