WEBVTT 00:04.190 --> 00:06.050 Welcome to your next quest. 00:06.050 --> 00:12.530 In this quest, you're going to implement cost and cooldown for Arcane Shards, so make sure that you 00:12.530 --> 00:18.320 take all the steps into account and then playtest to make sure that your cooldown is reflected in the 00:18.320 --> 00:19.400 HUD as well. 00:19.430 --> 00:21.860 So pause the video and do this now. 00:25.600 --> 00:27.760 Okay, so cost and cooldown. 00:27.760 --> 00:29.890 We need to do a couple things. 00:29.890 --> 00:37.990 For one, I'm going to open up my CT cost because I have curves for both Firebolt and Lightning Electrocute. 00:37.990 --> 00:42.820 Now at this point I'm getting a bit tired of using constant values. 00:42.820 --> 00:44.260 I'd rather use a curve. 00:44.260 --> 00:52.120 So what I'm going to do is just make a new CT cost, and it's going to be a curve table with a different 00:52.120 --> 00:53.170 interpolation type. 00:53.170 --> 00:58.690 So I'm going to go to miscellaneous, create a curve table and it's going to be cubic. 00:58.690 --> 01:00.220 We'll go ahead and create it. 01:00.220 --> 01:04.030 And I'm going to call this CT underscore spell cost. 01:04.890 --> 01:06.270 And I'm going to create curves. 01:06.270 --> 01:08.400 Now taking a look at Firebolt. 01:08.400 --> 01:11.910 We start at 2.5 and at ten we're about 35. 01:12.330 --> 01:19.230 So in spell cost I'm going to rename the curve to Firebolt and add a point. 01:20.000 --> 01:25.550 And this first key is going to have at level one a cost of 2.5. 01:27.110 --> 01:29.660 And we'll go ahead and add another key. 01:30.470 --> 01:32.840 And this is going to be at level 40. 01:33.380 --> 01:37.280 Now I'm going to try a value of say 25. 01:38.130 --> 01:41.130 And see what my curve value is at level two. 01:41.160 --> 01:42.660 It's at 1.5. 01:43.050 --> 01:46.380 And over here I see at level two it was about three. 01:46.410 --> 01:52.530 So I can increase that point here at level 40 to about 40. 01:52.800 --> 01:55.890 And now at two the cost is two. 01:55.920 --> 02:03.060 And if I increase it again to about 50 now at level two my cost is about 3.5. 02:03.090 --> 02:05.760 So we're just about there. 02:05.760 --> 02:09.900 And I can even tweak the shape by making it auto. 02:09.900 --> 02:15.870 Now at level two it's about 2.5 and I can make it increase a little bit faster. 02:17.010 --> 02:21.060 And now at level two, it's about 3.13.06. 02:21.060 --> 02:24.780 So the curve lets me adjust things a little bit easier. 02:24.780 --> 02:26.730 So I kind of like the curve better. 02:26.820 --> 02:30.090 I'm going to also add a curve for electrocute. 02:31.310 --> 02:32.690 Call this electrocute. 02:33.110 --> 02:34.790 We'll add two points. 02:37.490 --> 02:43.820 The first one starts at level one and its mana cost will be one and at level 40. 02:44.600 --> 02:46.820 Let's see what our CT cost has. 02:46.820 --> 02:49.340 It had a mana cost of seven at level ten? 02:49.340 --> 02:53.000 So at level 40 I'm going to go up to about 28. 02:54.260 --> 02:57.530 And at level ten the value is about seven. 02:57.530 --> 02:57.980 Perfect. 02:57.980 --> 03:02.990 So I'm going to go ahead and make this auto and make it a little less snaky. 03:02.990 --> 03:06.380 So almost more linear there and I'll save that. 03:06.380 --> 03:11.930 And finally I can add a curve for arcane shards. 03:12.460 --> 03:14.200 And we'll add two points. 03:16.410 --> 03:19.080 First will be at level one. 03:19.080 --> 03:22.110 What's our mana cost going to be for arcane shards? 03:22.110 --> 03:23.880 Well that depends. 03:23.880 --> 03:30.180 We can set it off at a higher value because this is a little bit more powerful of a spell. 03:30.180 --> 03:36.750 I'm going to set it with a mana cost of ten, and at level 40 we'll have a mana cost of, let's say 03:36.750 --> 03:37.770 85. 03:39.230 --> 03:40.970 So it looks like this. 03:40.970 --> 03:44.390 I'm going to make it a auto curve. 03:44.390 --> 03:50.330 And just like the others, I'm going to straighten it out just a bit and save that. 03:50.330 --> 03:54.830 And now we have CT spellcast instead of CT cost. 03:54.830 --> 03:57.320 And I'm going to use this in all of my spells. 03:57.320 --> 04:01.940 So going back to electrocute I can take a look at my cost gameplay effect class. 04:01.940 --> 04:09.980 I can browse to it and open it and scroll down and change my CT cost to CT spell cost. 04:10.220 --> 04:12.140 And I still have to select a curve. 04:12.140 --> 04:14.930 It's going to be electrocute for the electrocute spell. 04:14.930 --> 04:24.020 I'm going to save that and then I'll go into my abilities fire, open Firebolt and get my GE cost Firebolt 04:24.020 --> 04:26.150 and change its cost as well. 04:26.150 --> 04:31.670 So changing it from CT cost to CT spell cost, choosing Firebolt. 04:31.670 --> 04:33.020 And we're done there. 04:33.020 --> 04:35.990 And I'm going to go over to arcane. 04:35.990 --> 04:40.220 And I don't have an arcane gameplay cost okay. 04:40.220 --> 04:42.170 So I'm ready to make that. 04:42.170 --> 04:49.280 Before we do that though, I'm going to browse to CT cost, close it down and go ahead and just delete 04:49.280 --> 04:50.000 CT cost. 04:50.000 --> 04:51.380 We're not using it anymore. 04:51.380 --> 04:54.260 Now we have spell cost which is better. 04:54.650 --> 04:58.610 And I can go ahead and close out of CT spell cost. 04:58.610 --> 05:04.820 And here in Arcane Shards in its folder I'm going to make a new gameplay effect. 05:04.820 --> 05:14.000 So gameplay effect, we're going to make this and call it GE cost Arcane shards. 05:15.000 --> 05:16.380 We'll open this up. 05:16.380 --> 05:23.040 And just like the other costs, it's going to be an instant and we'll change the mana attribute. 05:24.090 --> 05:26.760 So scrolling down, we're going to leave it at instant. 05:26.760 --> 05:28.410 We're going to add a modifier. 05:28.740 --> 05:30.960 It's going to modify mana. 05:31.810 --> 05:33.010 It's going to add to it. 05:33.010 --> 05:34.780 We're going to have a scalable float. 05:34.780 --> 05:42.010 We're going to set it to negative one scaled by CT spell cost, choosing arcane shards. 05:42.460 --> 05:43.090 And that's it. 05:43.120 --> 05:50.020 We just have to go into arcane shards and go to class defaults and set its cost gameplay effect to cost 05:50.020 --> 05:51.100 arcane shards. 05:52.310 --> 05:53.600 Now for cooldown. 05:53.630 --> 05:59.090 Now cooldown is going to be its own gameplay effect, so we'll make one. 06:02.660 --> 06:07.730 And I'm going to call this GE cool down arcane shards. 06:08.270 --> 06:09.620 I'm going to open it up. 06:09.620 --> 06:11.930 And this one is going to have a duration. 06:11.930 --> 06:15.350 So we set the duration policy to has duration. 06:15.350 --> 06:19.850 And we're going to just hard code a duration for arcane shards. 06:19.850 --> 06:25.280 And I like arcane shards to have a cooldown of about let's say six seconds. 06:25.280 --> 06:27.860 I'd like this to have a longer cooldown. 06:27.890 --> 06:34.040 Now, the cooldown effects have a specific quality, and I'm going to go back to one of our others. 06:34.040 --> 06:35.390 Let's go to Firebolt. 06:36.260 --> 06:44.630 GE cooldown Firebolt just to remind you that even though they have no modifiers, they do have a granted 06:44.630 --> 06:47.360 tag and that's a cooldown tag. 06:48.080 --> 06:51.560 So we need a cooldown tag for Arcane Shards. 06:51.560 --> 06:55.250 We can just add one in project settings and go to Gameplay Tags. 06:55.250 --> 07:00.380 We can go to cooldown and we don't have an arcane sub category, so we're going to make one. 07:00.380 --> 07:05.630 So we're going to add cooldown Dot arcane Dot Arcane Shards. 07:06.260 --> 07:12.740 And now that that tag exists, we can close project settings and go to cooldown, not Firebolt, but 07:12.740 --> 07:16.640 Arcane Shards and add to its granted tags. 07:17.820 --> 07:22.170 And we're going to add cooldown arcane arcane shards. 07:22.560 --> 07:29.550 And with that, we just need to set the cooldown effect on the Arcane Shards ability all the way down 07:29.550 --> 07:30.540 at the bottom. 07:30.540 --> 07:31.980 It's going to be cooldown. 07:31.980 --> 07:34.800 Arcane Shards compile and save. 07:34.800 --> 07:36.930 Now that's almost everything. 07:36.930 --> 07:43.440 The only thing is, for our HUD to work, we need to make sure our data driven systems understand the 07:43.440 --> 07:46.530 cooldown associated with Arcane Shards. 07:46.530 --> 07:52.470 So we have to go to ability system data, ability info, and we have to find arcane shards. 07:52.470 --> 07:53.280 Here it is. 07:53.280 --> 07:59.790 We need to give it its cooldown tag and that's going to be cooldown arcane arcane shards. 07:59.790 --> 08:02.520 With that, we can test this out. 08:03.620 --> 08:07.730 I'm going to press play, I'm going to hit one and I'm going to. 08:08.420 --> 08:09.020 Cast. 08:09.020 --> 08:11.240 Arcane shards. 08:21.400 --> 08:24.340 All right, so I'm getting a big fat error. 08:25.200 --> 08:29.010 Where we're calling store shard spawn location. 08:29.370 --> 08:30.660 All right. 08:33.460 --> 08:35.440 So it looks like we're. 08:36.570 --> 08:38.760 Doing something wrong. 08:38.760 --> 08:40.350 And of course. 08:41.140 --> 08:43.000 If I go back to event graph. 08:43.620 --> 08:46.770 We're using Maxnum shards right here. 08:46.770 --> 08:54.600 But what about when we're getting our number of points right here in git ground points? 08:55.180 --> 08:58.180 We're passing in zero, so we're not getting any ground points. 08:58.180 --> 09:01.510 We actually have to pass that number in. 09:03.290 --> 09:04.310 Maximum shards. 09:04.310 --> 09:07.130 And in fact, we shouldn't use maximum shards, should we? 09:07.160 --> 09:12.110 We should calculate how many shards to spawn based on our level. 09:12.110 --> 09:19.070 So before we get our points from the point collection, get ground points, let's just move these forward 09:19.070 --> 09:19.850 a bit. 09:22.420 --> 09:26.560 And I'm going to get maximum shards. 09:30.110 --> 09:32.210 And we're going to call min. 09:33.380 --> 09:34.340 Integer. 09:34.880 --> 09:39.410 We're going to get the minimum between maximum shards and get ability level. 09:44.040 --> 09:50.400 Now we'll bring that in and we're going to promote this to a variable called num shards. 09:52.890 --> 09:54.270 And we're going to use this. 09:54.270 --> 09:56.730 We're going to use it and get ground points. 10:06.090 --> 10:08.340 And we're going to use it down here. 10:09.230 --> 10:10.700 Instead of the max. 10:12.680 --> 10:14.150 That's going to fix that. 10:21.870 --> 10:24.420 Okay, so we're at level one. 10:25.550 --> 10:27.170 We're spawning one shard. 10:27.170 --> 10:28.160 Perfect. 10:28.940 --> 10:29.360 Okay. 10:29.360 --> 10:31.550 And with that, we're just about ready to test. 10:31.550 --> 10:36.920 The only thing is, we need to commit our cost and our cooldown. 10:37.220 --> 10:43.130 Now, in arcane shards, where do we want to commit our cost and cooldown? 10:43.700 --> 10:50.480 Well, I'd like to commit the cost the first time that we summon a shard. 10:50.900 --> 10:55.850 In other words, right here is our set timer, and we spawn the first shard. 10:55.880 --> 10:58.730 I'd like to commit the ability cost here. 11:00.470 --> 11:02.930 So I'm going to call commit ability cost. 11:02.930 --> 11:07.790 And we should see our mana get spent for this. 11:09.070 --> 11:09.520 Now. 11:09.520 --> 11:15.610 We shouldn't cast the spell at all if we can't afford the cost, and we can check the cost, we can 11:15.610 --> 11:24.730 say check cost and check ability cost checks to see if we can afford the cost, but it doesn't apply 11:24.730 --> 11:25.420 the cost. 11:25.420 --> 11:27.820 We can do that right at the beginning. 11:27.820 --> 11:30.130 So we're going to go all the way up to here. 11:30.650 --> 11:36.950 Check the ability, cost and only if we can afford the ability cost should we do anything. 11:36.950 --> 11:38.300 And we can test that. 11:38.300 --> 11:40.310 So we'll have this branch here. 11:41.140 --> 11:46.690 Will commit the ability cost when we first spawn a shard, and in fact we can commit the cooldown at 11:46.690 --> 11:47.950 this point as well. 11:47.950 --> 11:54.310 Or we can wait until the last of our shards is spawned and commit the cooldown and end the ability there. 11:54.340 --> 11:57.460 I'd like to do that there, so I'm going to remove this delay. 11:57.460 --> 12:01.870 That was just a hack and we're going to destroy the point collection. 12:01.870 --> 12:03.580 Commit the cooldown. 12:04.280 --> 12:06.020 So we'll say commit ability. 12:06.020 --> 12:07.010 Cooldown. 12:12.760 --> 12:14.560 And we can end the ability here. 12:15.770 --> 12:17.210 Let's see how this works. 12:20.890 --> 12:22.450 So there's our cool down. 12:24.140 --> 12:25.370 Can't cast it. 12:28.960 --> 12:29.980 There we go. 12:30.010 --> 12:36.280 Now, just to test out what we did at the beginning of Arcane Shards. 12:36.280 --> 12:38.740 Namely, check the cost. 12:38.740 --> 12:42.160 We can see what happens if we don't have enough mana here. 12:42.700 --> 12:46.570 So to do that, I'm going to go to cost arcane shards. 12:47.610 --> 12:49.830 And scale this by say. 12:50.580 --> 12:53.250 Negative ten instead of negative one. 12:56.460 --> 12:58.740 Now we have just about zero mana. 12:58.860 --> 13:04.050 And if I try to cast the spell once the cooldown is over, I can't cast it. 13:04.080 --> 13:08.910 I can cast my other spells, but I can't cast this one because I can't afford it. 13:08.910 --> 13:14.730 So that's how we can prevent casting inability when we don't have the mana. 13:15.120 --> 13:20.190 I'm going to go back to the cost for arcane shards and set that back to negative one, as I believe 13:20.190 --> 13:21.660 that's a little too expensive. 13:22.250 --> 13:23.450 And with that. 13:24.330 --> 13:30.690 We now have cost and cooldown for Arcane Shards, and Arcane Shards has a bit more of a cooldown than 13:30.690 --> 13:31.500 the others. 13:31.980 --> 13:34.020 Now I can level up. 13:36.800 --> 13:37.880 Oops, I got stunned. 13:37.910 --> 13:39.200 I can't move. 13:39.530 --> 13:40.910 I need to move away. 13:40.910 --> 13:41.570 Okay? 13:41.570 --> 13:46.550 And I'm going to level up my arcane shards. 13:47.110 --> 13:48.850 Now I see it's level two. 13:49.890 --> 13:51.390 And I'm going to cast it. 13:53.400 --> 13:54.840 And we get two shards. 13:54.840 --> 13:55.740 Sweet. 13:55.740 --> 13:57.600 I'm going to level it up again. 13:58.210 --> 13:59.350 And cast it. 14:00.570 --> 14:01.770 And we get three shards. 14:01.770 --> 14:03.360 I'm going to level it up again. 14:04.800 --> 14:06.000 And cast it. 14:08.940 --> 14:09.990 Perfect. 14:12.220 --> 14:13.000 Excellent. 14:13.000 --> 14:16.030 So Arcane Shards is officially done. 14:16.970 --> 14:18.080 Awesome job. 14:18.080 --> 14:21.290 I hope you're ready for another exciting ability. 14:21.320 --> 14:22.970 I'll see you soon.