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‫Hello and welcome back.

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‫Now we're ready to create a projectile class.

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‫Now our tanks and our towers need to fire projectiles, which means that we're going to need a C++ class

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‫for the projectile.

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‫Now, the projectile is going to need its own static mesh so that we can see the projectile once we

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‫spawn it in the world.

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‫So we're going to create the C++ class and then we'll create a blueprint based on this class.

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‫And this is going to be a challenge for you since these are all things that you already know how to

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‫do.

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‫So you're going to create a new C++ class and choose the correct parent class.

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‫Now, the projectile doesn't need to handle any user input, so that should tell you right there that

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‫this is not going to be a --.

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‫Now, once you've done this, add a static mesh variable just like we've done for our other classes,

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‫construct it in the constructor using create default sub object and set the static mesh as the root

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‫component.

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‫Now once you're done, go ahead and create a blueprint based on this projectile class.

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‫And in the blueprint, set the static mesh property for the static mesh component.

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‫Pause the video and create the projectile class now.

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‫Okay.

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‫So we're ready to create the projectile C++ class.

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‫So I'm going to go to file new C++ class.

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‫And because we don't need user input, this is just going to be a basic actor.

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‫An actor can be placed in the world or spawned in the world, and we're going to be spawning these in

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‫the world.

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‫So we need to derive from the actor class.

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‫I'm going to click next and name this new class.

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‫Now this is a projectile.

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‫So I think projectile is a perfect name for this.

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‫I'm going to leave it in the same folder as all our other C++ classes and click Create Class.

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‫So here we have projectile FX and projectile CP and we need to add a static mesh variable.

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‫So I'm going to add a private section just under the protected one.

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‫So private and we're going to need a U static mesh component.

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‫So this would be a U static mesh component.

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‫It's going to be a pointer.

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‫Now, that's okay.

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‫If you named it something different, I'm going to call this projectile mesh.

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‫Now we're going to expose this using you property.

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‫So you property.

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‫And I'd like to be able to edit this from the default blueprint.

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‫So I think edit defaults only is appropriate for this.

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‫I'm going to give it a category and the category can be combat.

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‫It's not really important what we call it, and that's all the exposure I'm going to give this variable.

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‫That's okay if you have different you property settings here.

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‫Now we need to construct this.

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‫So let's go into projectile CP into the constructor and say projectile mesh and we're going to call

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‫create default sub object using u static mesh component.

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‫And for the text, I'm just going to say projectile mesh.

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‫And finally, we need to set this to be the root component.

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‫So I'm going to say root component equals projectile mesh and I'm going to spell it correctly there.

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‫Okay.

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‫So that takes care of the C++ side of things.

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‫Now, you may not have thought of this, but we have this primary actor tic b can never tic equals true.

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‫And because our projectile doesn't really need to tic, we can set this to fall.

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‫So if you'd like, go ahead and set that to false along with me here.

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‫And we do get the red squiggles here under the assignment operator.

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‫And this is simply because we need to include the header file for you static mesh components.

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‫So if we go to based upon CP, we can see that header file here because we needed to include it for

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‫the static mesh components in the base pod.

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‫So I'm going to steal that, include and paste it right here at the top.

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‫And that way you a static mesh component is defined.

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‫Now let's go ahead and compile this and I'm back here in the editor and the next thing we need to do

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‫is create a blueprint based on projectile.

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‫Now I'm going to go into the blueprints folder and we have a pawns folder.

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‫I'd like to create a new folder and call this actors because our projectile is not a pawn, so it doesn't

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‫really need to go into the pawns folder.

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‫So we have a new actors folder.

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‫I'm going to go into it and this time I can right click and select Blueprint Class and here we can select

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‫the class to base this blueprint on.

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‫If we click the dropdown next to all classes, then we can search for projectile and there is the projectile

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‫class.

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‫So I'm going to select that click select.

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‫And now we have a new blueprint based on the projectile class.

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‫So that's another way to create a blueprint based on one of our C++ classes.

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‫Now I'm going to call this B.P. underscore projectile and I'm going to double click to open up Beep

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‫Projectile and I'll click Open Full Blueprint Editor.

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‫If you see that, go ahead and click on it.

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‫And we have our blueprint and here's projectile mesh.

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‫And by default it doesn't have its static mesh property set.

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‫So we're going to set that and I'm going to choose the SM projectile.

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‫I'm sure that is what you selected for your projectile.

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‫Makes sense.

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‫So we have a projectile.

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‫Excellent.

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‫I'm going to compile and save this close out of it and click save all just to make sure everything is

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‫saved and we now have a projectile.

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‫So in summary, you have created your projectile class and you created a blueprint based on projectile

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‫and gave it a use static mesh component variable.

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‫And in the blueprint you set it's static mesh.

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‫So now we have a projectile to work with.

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‫We're ready to start spawning these things and we're going to take care of that in the next video.

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‫I'll see you soon.