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‫Welcome back.

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‫In this chapter, we are going to build a fruit ninja clone and you might know the game fruit ninja

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‫if you don't know it.

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‫And check out some YouTube videos.

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‫It's a very basic game in which you have to slice some fruit and you simply do that with a swipe and

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‫then you slice them, they fall off and you get some points and your goal is to get as many points as

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‫possible.

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‫Of course, there is something that holds you back from making points and that are bombs.

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‫So as soon as you cut a bomb, you'll lose the game.

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‫All right.

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‫So that's pretty much it.

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‫There's not much more than that.

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‫And we will build these basic functionalities in this chapter.

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‫So let's go ahead and create a new project, and let's call that Fruit Ninja clone and let's create

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‫the project.

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‫In my case, I call it V one.

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‫You don't have to do that.

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‫And that's just because I already have a clone somewhere under my project.

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‫All right, so there we are.

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‫Let's go ahead and first of all, change the background of our camera.

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‫So I don't want to have a skybox.

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‫I'm just going to use a solid color and I'm going to change that color to.

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‫Let's go ahead and pick a color.

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‫And let's go with a brownish color.

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‫Where light brown a bash almost great.

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‫So that's our starting point.

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‫And now let's import the assets that we have because there are some assets which you can download which

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‫are attached to this lecture and let's go ahead and drag all of them into our game.

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‫So there is banana cut, banana blend bomb, orange cut, orange blend.

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‫So all these blend files which are blender files and let's drag them into our game.

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‫All right.

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‫So now, as you can see, the assets were created for us directly and the materials as well.

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‫Let's start off by creating a folder for them, which I'm going to call models, and I'm going to drag

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‫all of them in there.

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‫Even materials.

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‫So let's drag all of it in there.

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‫All right.

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‫So first of all, let's start with an orange.

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‫Let's drag it into our game.

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‫As you can see, this is the orange and that's how big it would be.

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‫So maybe it's a good choice to reduce its size.

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‫So here, go to model and change the scale factor to 0.3 and then hit apply at the bottom.

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‫As you can see now, it's much smaller and that will be a much better size.

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‫Otherwise it's way too big.

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‫Now let's do the same thing with our cut orange or orange cut 0.3 and then hit apply.

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‫Now let's drag the orange cut in there as well, actually in here.

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‫So now you might wonder what that means.

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‫Well, we have one version, which is the complete orange, which is uncut, and then there is the cut

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‫version, which is the one that will be created as soon as we slice through or swipe through an orange.

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‫And it's two pieces.

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‫So it contains two pieces which will then fall off to different directions.

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‫So we will get this slightly feeling of slicing an orange or in general or slicing a fruit.

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‫All right.

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‫So let's get rid of the orange cut again, because that was just for demonstration purposes.

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‫So let's delete the orange cut here.

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‫Now, the orange has an animator already, as you can see.

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‫It doesn't have a controller, though, and we won't need that for now.

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‫So let's get rid of it.

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‫Remove component.

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‫Now we only have the mesh render the mesh filter transform component.

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‫And what we will need to add is a physics to the rigid body.

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‫Now you might wonder why a 2D physics body and why not 3D?

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‫Well, that's because I only want this orange to move into 2D room.

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‫So it shouldn't move to the it should move to the top, to the left, to the right.

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‫But it shouldn't go in a deep level, so it shouldn't go in the 3D level.

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‫That's why Rigid Body 2D is the right rigid body for us.

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‫Now let's add another component, which is a physics 2D circle collider because as you might guess,

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‫our orange has the form of a circle.

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‫So as you can see now, this is going to be the 2D collider.

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‫You can even see it better if we go to the 2D room.

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‫Now, you see that green little line surrounding our orange is going to be the Circle Collider.

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‫Now the radius of the collider, you can find it here and you could change that.

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‫As you can see here, making it bigger or smaller.

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‫If you want to make the game easier, you would make it bigger or you could even in general scale up

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‫the whole model.

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‫But 0.3 is the right radius for us.

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‫Now we could even get rid of this offset because it was so minimal.

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‫It's just something that unity.

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‫Unity does sometimes.

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‫Well, now the rigid body is all right.

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‫We will need a mass.

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‫We will need a gravity scale.

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‫But what we should change here is the collision detection.

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‫This is fine in most games, but we want it to be super fast.

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‫So we want to have a very quick detection here.

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‫Collision detection, so continuous is the better choice for us because it's a very quick game in which

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‫we slice the orange and it should react very quickly.

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‫Now let's save that orange as a prefab.

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‫So let's create a new prefab folder, folder prefab and drag the orange in here.

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‫And while we're at it, let's save the scene as well.

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‫So save scenes and let's call that one main.

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‫Then we will need a script folder because we're going to work with script.

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‫So let's create that as well script and let's go in there, create a new script.

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‫I see sharp script to be precise and call it fruit.

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‫Now let's open it up.

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‫All right, in here.

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‫What we want to do is we want to create a sliced fruit.

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‫So we will need a sliced fruit.

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‫Prefab for that, which means as soon as we cut our orange, we want to have the orange pieces.

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‫So the two to the two parts of our orange, which will fall off into different directions.

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‫And that's something that we need to set up here.

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‫And that's not just for the orange is for any fruit that we're going to work with.

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‫So let's create a public game object called sliced fruit prefab because we will need the prefab of the

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‫sliced fruit, which is, for example, the sliced orange, and then we'll need a method which slices

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‫the fruit.

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‫So I'm going to call it create sliced fruit.

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‫And what I want to do is simply instantiate the sliced fruit.

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‫So.

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‫Sliced fruit.

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‫Prefab.

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‫At which position?

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‫Well, at the same position as our oranges.

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‫And then transform the rotation.

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‫So also the same rotation that we have now.

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‫The next thing we need to do is, of course to destroy the whole orange.

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‫So our game object, which is the game object that contains the fruit script or holds the fruit script.

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‫All right.

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‫Now let's go into unity again because we don't have the prefab yet, so we don't have the sliced prefab

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‫yet.

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‫Of course, we only have the orange prefab.

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‫So let's go back to our model and let's drag the orange cut again into our game.

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‫Now, the orange cut consists of two different objects, as you can see here.

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‫This is just a folder pretty much which contains our orange cut left and our orange cut right.

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‫So there are two pieces of the orange.

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‫We want them to fly into different directions as soon as this create sliced fruit method is called.

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‫So let's go ahead and do that.

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‫Let's select those two cut pieces and add a component.

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‫And now we're going to add a rigid body, not a rigid body, 2D, because we don't only want to fold

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‫them off to the side, we also want them to slightly rotate.

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‫So it looks a little bit more realistic because the fruit won't always fall off perfectly to each sides.

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‫It will also rotate a little bit.

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‫And that's something that we need to do with a rigid body 3D.

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‫Now, about the collision detection, we can leave it as discrete because those pieces will not be as

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‫important in terms of collision detection.

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‫We don't want them to be sliced again, but we still need a physics.

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‫Box.

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‫Collider Well, in this case, we're going to use a box collider now here, of course, a box collider,

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‫not a box collider to DD as our rigid body is a 3D object.

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‫So now that we have that, let's drag them into our prefabs folder.

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‫So let's actually drag the orange cut as a prefab into our prefabs folder because we want to have both

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‫pieces and we want to have one prefab.

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‫All right, so now we can get rid of our orange cut.

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‫Delete that from here.

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‫Let's save our scene as well.

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‫So now the orange like this orange and the prefab, they both need to have the script that we've just

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‫created.

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‫So let's add the component.

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‫Let's add the script called Fruit.

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‫Now, of course, you see here we will need a sliced fruit prefab.

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‫And it's perfect because orange cut is a sliced fruit prefab.

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‫So let's drag that in there and let's apply that to our prefab orange.

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‫Otherwise it won't have the script.

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‫So you can see the prefab has a script that's really important.

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‫All right, now let's that's done.

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‫Let's try to get that happening.

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‫So let's try to create a sliced fruit and we can use the update method for user input.

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‫So if input dot get key down.

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‫So as soon as the user presses a key and let's just do key code space.

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‫So as soon as somebody presses the space key, let's just call this create sliced fruit method.

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‫All right, so let's save that script.

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‫Let's go back to Unity.

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‫And now it's important that we have an orange in our hierarchy, because otherwise we don't have any

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‫oranges to test that on as we don't have any spawn or yet.

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‫So we will create spanners, which will spawn fruits and shoot them up the air so that we can slice

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‫them.

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‫But now we don't have that yet.

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‫So let's make sure that an orange is in our game and let's start the game now.

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‫Actually, I was too slow, so let's drag it up a little bit.

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‫Let's go into the 2D room and let's pull it up.

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‫So I have enough, enough time and let's maximize on play.

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‫And the press, the key.

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‫And as you can see, the sliced fruit was there and that's all good.

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‫But of course, it doesn't look very nice.

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‫It should rotate somehow or should move towards different directions.

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‫And that's what we can get in our create sliced fruit because we need to add a rigid body here, which

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‫does an explosion.

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‫And in order to do that, we have to do the following thing.

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‫So let's create a rigid body.

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‫And in this case, we need an array of rigid bodies because we have two rigid bodies that we are talking

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‫to.

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‫So the one of the left sliced piece and the one of the right sliced piece, and I'm just going to call

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‫it RB s or rigid bodies on sliced.

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‫And in order to initialize it, we need the game object to initialize it with.

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‫So let's create a game object and let's call it instance of.

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‫Now the instantiate method needs to get a game object in front of it so that this will now not only

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‫instantiate the game object, but will also create a game object which is saved in Inst.

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‫Now we can use that inst to now go ahead and transform the get component component in children and here

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‫to rigid body.

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‫So I want to have the rigid body of each of the two sliced pieces.

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‫And here it's complaining because it's not a component in children, but it's components in children,

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‫because here we have an array of rigid bodies.

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‫So it's plural.

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‫Now let's go through all of the different pieces that we have.

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‫So all of these different sliced orange pieces and take the rigid body called are in RB on sliced.

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‫So we're going through this array here and for each of the pieces we change the transform rotation with

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‫a random rotation.

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‫So we just create a random row tation.

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‫And that's beautiful because you see the random method has a property called rotation which will just

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‫give us a random rotation.

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‫We don't even need to write a method here to do any random rotations here.

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‫So that's pretty cool with with the random class.

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‫Now, next, we want to add an explosion so that the pieces go to different directions and they just

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‫get blasted to the different directions.

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‫And as you can see here, our rigid body has several add methods, add force, add relative force,

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‫add explosion force.

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‫All right.

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‫That's exactly the one that we want to have.

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‫So let's use that.

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‫As you can see, there are multiple overloads and we're going to use this one here just with a explosion

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‫force.

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‫So how powerful should the explosion force be then?

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‫The explosion position?

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‫So the position from where the explosion should start.

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‫And then finally the explosion radius and the value for explosion force should be random.

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‫It shouldn't always be the same kind of explosion.

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‫It should not always look the same.

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‫So sometimes it should fly away further, sometimes less far, and so forth.

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‫So let's create a random thought range.

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‫And the two values I want to use here are 501,000.

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‫So I just want to have a explosion force of between 501,000, which should be random.

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‫Then the explosion position should be transformed that position.

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‫So the position of the game object from which we exploded.

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‫So it's in this case our orange, so the center of our orange.

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‫And then finally what should be the explosion radius?

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‫And I'm just going to enter five.

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‫That's just the value that I have tested and works well here.

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‫So let's use five F now let's save that again and let's go back to Unity and now let's press the key.

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‫And as you can see, our fruit falls off pretty cool.

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‫Now, if we duplicate the orange and reposition each orange it a little bit.

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‫So let's change the values here.

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‫Then you will see how cool our little explosion looks.

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‫All right.

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‫And now finally, this one here as well.

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‫So now let's start the game again.

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‫And you might see the rotation is random and the explosion itself is random as well.

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‫So they fly off to different directions, different to powerful and so forth.

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‫So I think this looks pretty cool already.

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‫So you see, we do great explosions and yeah, I think that's good for this video.

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‫And the next video we're going to check how to spawn those fruits because now we have to drag them into

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‫our scene and that's not the best solution.

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‫So let's save the scene as usual.

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‫Don't forget to save the scene and see you in the next video.