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Welcome back, My favorite game developers.

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In this video, as you can see,

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we have something a bit different.

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We have waves, but these waves are not

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just regular elements or regular variables.

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They have the friend variables inside of them.

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And we can create a another wave and another wave.

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And as you can see, each one of

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those has their own element.

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So welcome to the Advanced C-sharp section.

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Let's not waste any more time and let's get started.

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But I need your full concentration,

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your full attention span, and your fall.

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Patients with me.

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So let's get started.

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Oh, okay, So now that we have our random levels,

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it's time to create random NME waves.

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So we're not just going to

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have the regular enemies in here.

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I just set them up in

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the previous video so that we know what

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the general idea is in

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each level and just have

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a bit of differences between them.

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But in this video we are going

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to create an enemy spawner.

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So let's get started.

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The first thing that we're going to do is

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we're going to open up the managers.

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And we don't have managers in here.

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So we're going to go to one of

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these that doesn't have a manager and this is it.

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And what I'm going to do is I'm

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going to go into the prefab.

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We have a managers in here and I'm just going to add

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the entire managers folder so we can

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add managers to whichever scene that we need.

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So I'm going to go into

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the boss level that we have all the managers in here.

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Yes, we do. The cowards.

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We don't have the managers or

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prefab managers and the managers in here. There we go.

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Now we have the game level and all your manager.

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And let's go back and see.

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So the cowards, yes, save the health.

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Do we have managers?

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No, we don't.

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So again, we go to the prefabs Prefabs Managers.

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And there we go. We add the managers to the health room.

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Let's go see what else do we have the new we have

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managers top. We don't again.

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So find the managers at this.

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And if you want, you can just skip

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this part and go straight to the,

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you have in here.

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But this is not the prefab,

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so I'm going to delete this.

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I'm going to add

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the actual manager prefab

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should have done this in a previous one.

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Also scenes, what is this shop?

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This Kelly's see, no manager.

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And the managers.

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And scenes spikes, save managers.

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There we go. Boss level.

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Managers that we want.

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This is not the manager that you are looking for.

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So cowards see?

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Yes, yes.

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Yes, yes, yes.

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Okay, great.

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So everywhere we do have managers

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now it's time to actually create a spawner.

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And the best place I believe to

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start is in these Kelly's right here.

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So in this case,

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go to the level manager and let's go

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ahead and add a component in here or no,

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actually, let's go into the scripts.

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And where shall we add the wave spawner?

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And let's just add it inside of the managers

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in here we're going to create a new C-sharp script,

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which is going to be the wave spawner manager.

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Hit Enter, we just added the Name Manager.

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So again, we have an excuse to other top managers.

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So I'm going to go ahead and add it to the level manager.

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And in here I'm going to open up the script.

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So what do we want to do in here?

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We want to create another class.

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Why do we want to create a another class?

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Well, because first of all,

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this is advanced C-sharp.

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Second of all, we want to create

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a entire different class for

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the waves because the waves

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have named the waves have enemies,

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the waves has a balance of enemies,

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the delay between each time we spawned an enemy,

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and so on and so forth.

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So in here, I'm going to go ahead

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and create a public class.

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And it's going to be called the wave.

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And this wave will have a couple of things.

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So first of all, it will have a public String name.

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And obviously we don't want to have it always as public,

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but in this case,

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just so we can save a bit of time without

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having to create all the extra things.

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We're going to make them public.

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Then we'll have a public game object

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and an array of enemies.

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What an array of enemies and me is. There we go.

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Then we'll have a public and

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the amount of enemies that will spawn.

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And then finally, we'll have a public float spawn delay.

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There we go. So these are all of the elements,

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or let's say the part of the wave,

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all the variables inside of the wave.

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If you want to call that variable,

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because this is a class,

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it's something totally different.

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But this is not the only thing that we need to do.

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We also need to make sure to say that up here,

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this is a system dot serializable.

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So we save that.

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And what does serializable mean?

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It means that now if I open up

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the Unity scripts right here,

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you will see that.

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Okay, nothing happened.

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Why is that? Well, because we

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also need to do one more thing.

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And here we are going to say that this has a public wave.

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As you can see now we have a totally new class,

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an array of waves.

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So we save that.

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Now when we go back into Unity,

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we shall see that we have the option to create waves.

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And if I just add one wave in here,

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you'll see that I have different elements for this wave.

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And I can have an aim, can have an amount,

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can have the spawn delay and the enemies that I want.

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And if I add another element in here,

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you'll notice that again,

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I have a different name, different enemies,

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different amounts, and different delays.

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So as you can see, this is why recreated or made

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sure that this is a system dot serializable.

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This will allow us to create different elements of

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this and will allow us to

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create these types of variables.

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So basically we've created

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a new variable that has different variables inside of it.

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So let's continue on now that we have all of this,

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the next thing to do is to obviously go ahead

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and start checking wave after wave.

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So the first thing we need to do is in here we'll create

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a private end and we will keep count of the next wave.

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And obviously we will start at 0.

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So the first wave will be 0.

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And every single time we create

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a new wave with a new amount of enemies,

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with the new different types of enemies,

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we will go to the next wave by increasing it by one.

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Then we are going to create a serialized field where

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we will keep track of the time between waves.

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And let's just set it at five F as a default.

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And then we are also going

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to keep track of the wave count.

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So float wave, I say wave count,

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I meant count down.

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Okay, save that.

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And now when start we need to initialize

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the wave countdown to be as the time between waves.

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And then we are going to do

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something for later on and was thinking,

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but now we want to have something also as an extra.

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And I think this is the perfect place to create

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something of or something we've already covered,

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which is an enum.

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And why do we want to create an enum?

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Because waves will be in three separate states,

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we will have a spawning.

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So this is where we are spawning every single,

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I don't know the time or the delay between the enemies.

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For example, every two seconds we spawn a new enemy.

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We spawn a new enemy.

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At this time, we don't want to be doing certain things

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with our wave spawner controller or manager.

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I mean, so we need to create different states.

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So what I'm going to do is I'm

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going to issue a challenge.

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And your challenge is to create an enum

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for the different states that we are going to have.

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So we've already covered enums in the pickup section.

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So first of all, create an E naught for

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the different spawning states that will have,

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will need to have the spawning, waiting and counting.

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And finally, all you need to do is create a variable of

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this type so we can use it as a reference.

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So pause the video right now and go do each one.

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Oh, okay, welcome back.

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So as I've told you,

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in one of the pickups,

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whereas the pick-up pickup.

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Pickup pickup, a bilayer?

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Nope. Item dropper, dope.

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Where was it? Where was it?

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In the oh, okay.

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So in the shop item as you can see,

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we've created an enum for the health restore,

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health upgrade and the weapon.

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And based on each of those,

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we have a switch statement.

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We are going to do almost exactly the same thing.

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So in here I'm going to create a private, private enum.

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And this will be these pounding States.

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And we are going to have the bombing,

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the waiting, and the counting.

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And then we'll just create

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a variable of this type which is going to be

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a private founding states and state.

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There we go, save that.

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And in here in the start,

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what do we want to start with?

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Well, we are going to start with the counting.

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State is equal to spawning states dot counting.

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So we start off by counting down and

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then start also we need to make sure that we set.

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Oh, so we've already said the wave countdown.

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We want to update,

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start counting down on the wave.

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So if the wave countdown is less than or equal to 0,

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then what we're going to do is we're going to check,

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first of all, if

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the state that we are currently in is different

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than the spawning state, dot spawning.

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Then what we're going to do is we'll start

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spawning while the if

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else we haven't finished the countdown,

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then we are going to get the countdown and

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remove for enrollment time, delta time.

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So what is happening in here?

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Let's just do a small recap

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because all of this is fairly new.

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First of all, we have the wave spawner manager,

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which is attached to the level manager in here.

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Okay.

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Wait for this to compile any day now.

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Okay, Thank you. So then what do we have?

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We have a wave and

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every single wave has different elements attached to it.

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So what we decided to do is create

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an entirely new public class just to represent it.

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We could have if we want,

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created a separate class just for this one,

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in a separate script, just for this one,

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and not have it be a mono behavior,

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just a stem serializable and system

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serializable means that allows

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us to create this right here.

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And it allows us to change

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the different elements right here on how ever we want.

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So it can give us the ability to

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change the valuables much easier.

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So we created the waves,

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we keep track of the next wave that might be public

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if you want just to make sure we see

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everything appropriately, make it public.

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We created the time between waves,

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the waves come down.

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This is pretty simple.

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Then we created an enum for the spawning

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States because we have different spawning states.

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First of all, we can be either spawning,

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waiting or we can be counting down.

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And then we create one to just

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keep track of everything happening,

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just like we had in the shop item.

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We will later on have different out should I say,

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we will have different methods being

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executed and the update based on whether we,

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on which state we are in,

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we will be having different elements, different things.

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And this is the first example of it.

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If we are counting down,

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if we finish counting down

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and we're not in a spawning state,

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then we will start spawning.

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If we haven't finished counting down,

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we are just going to remove from the countdown the time,

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delta time until it's under 0.

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Then we check our responding.

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If not, then we will start spawning in the next video,

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where we actually will be spawning enemies.

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So I hope you enjoy it.

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I know this is a bit complicated,

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but this is what you signed up for.

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You came to the C-sharp advanced section in bonus one.

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So I hope you enjoy it.

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I hope you are committing your changes and I'll

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see you in the next video.