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‫Welcome back.

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‫In this video, we are going to create the first part of our game scene and we're going to move over

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‫from this scene to the next to the next scene by using our play button.

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‫In order for our play button to do anything, we need to add a script to it, otherwise it won't do

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‫anything.

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‫So we need to create a new script.

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‫So I press right click, create a new script, and I'm just going to call that one play button because

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‫I'm going to keep it very simple with the scripts in this video, because in the end it's easier to

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‫create multiple scripts that do each, only one thing or have only one important aspect that they have

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‫to fulfill.

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‫And that's the same with this play button.

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‫So this script will only take care of this one button, and the only thing that it should do is take

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‫us from this scene to the next scene.

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‫Let's first start with giving this play button any functionality at all.

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‫And how we do that is we create a new method.

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‫And the method that I'm going to create is public void and I'm going to use that play game name.

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‫So I create a new method that I call play game and it's with a capital P because methods in C-sharp

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‫are written with capital letters.

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‫And then for now, I'm just going to use the debug functionality debug log play game was pressed.

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‫So that's it.

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‫That's all the code that we're going to use for now.

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‫The only thing that this is going to do is create an entry into our console.

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‫So let's save that script with control as or command s and then let's go to our play button again within

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‫our main menu.

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‫We have the button here.

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‫And in there, on the right hand side, in the button script component, you can see that there is an

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‫on click area and there's the list is empty currently.

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‫So what we do is we add something to the list, so we press the plus button and here we can choose an

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‫object.

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‫And currently we could choose either from the scene or we could choose from the assets.

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‫The best way to handle it is to drag that script into our button itself.

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‫Now you can see that the play button script is added to our button here.

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‫Now we can choose the button itself as the on click on Click Object.

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‫And within there we can now choose the play button functionality, which was called Play Game.

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‫As you can see, there are multiple different methods which are automatically enabled and one of them

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‫is the one that we created ourself, which is called play game.

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‫So now let's add that and now let's test the game.

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‫Let's simply test what play that button does.

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‫And I click on the play button.

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‫At the left hand side you can see play game was pressed perfect.

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‫That's exactly what we wanted to achieve.

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‫And now we know that the button works and we can go ahead and use that button in order to move us from

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‫this scene to the next scene.

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‫And in order to do that, we need to create a new scene.

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‫So let's save the scene in here.

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‫And now let's create a new scene.

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‫So right click within your assets, create and then go to scene.

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‫And this scene is going to be our game scene and there will be the whole game functionality.

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‫So let's move over to the scene and you can see it's empty.

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‫So there's nothing happening in this scene.

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‫And then here you see we have the same setup as we did with the other scene at the beginning.

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‫What I would like to have is the same main camera with the same background and the same size as I had

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‫in the other video, whereas I have in my main menu scene and you might guess how to achieve that,

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‫how to get it over here.

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‫And I'm going to show you.

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‫So we go back to our main menu scene and in there I.

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‫Use my main camera and I create a prefab out of it.

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‫So I drag it into my assets, into my assets area.

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‫And you can see my main camera is a prefab.

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‫Now at the bottom you can see main camera dot prefab.

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‫So that means it's a prefabricated, which we can now use in multiple, multiple ways.

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‫For example, we could go back to our game scene.

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‫And within our game scene we can delete the old main camera.

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‫So now you can see display one, no cameras rendering, and we can drag our main camera inside there.

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‫And you can see that it has all the different settings that we set up.

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‫So 450 for the size.

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‫It has a background which is our quad and it has a black material.

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‫Now let's save the game scene and go back to our main menu.

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‫Now we want to move from here to our game scene.

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‫And in order to achieve that, we need to add some code.

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‫So for now, our play button really just does one thing and it says play game was pressed in the debug

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‫log, but what we need to add is our scene manager and in order to use the scene manager we need to

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‫implement functionality.

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‫So we add a library here which is unity engine dot scene management within this namespace scene management

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‫that we can find the scene manager.

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‫So now we can call the scene manager class.

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‫Which allows us to move from one scene to another.

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‫So we say load scene and now we can move from this scene to the next scene.

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‫And the next scene that we want to move to is our game scene.

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‫And here it's important to use a string.

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‫As you can see, it expects a string as which is the scene name.

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‫And it's important to have a scene which is called game.

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‫Otherwise we will get an error that says no scene available with the name you entered.

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‫So this one, the scene manager, moves us to the game scene.

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‫So that's the idea behind it.

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‫So I save the script, I go back to Unity, and now I start to play the game.

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‫And I press the play button.

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‫So that we are.

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‫Let's press play.

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‫And we get an error still.

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‫It says seen game could not be loaded because it has not been added to the build settings or the asset

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‫bundle has not been loaded.

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‫If you ever get this error where it says could not be loaded because it has not been added to the build

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‫setting.

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‫You have to add it to the build setting and it's very easily done.

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‫We go to file, then build settings or in my case on Mac, it's shift command B and then I go to the

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‫build settings in here.

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‫I have to add the scenes that I want to have in my build, and you can drag the scenes from your assets

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‫folder straight in the scenes and build as soon as you've done that.

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‫And then you can start the game and see if that works.

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‫So I'm going to maximize and play again so that it goes it goes full screen.

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‫And then we are I press play and I get to my black screen and my black screen is my game scene for now.

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‫So we saw that it worked.

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‫So play game was pressed and we were in the game scene.

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‫Perfect.

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‫So now you know how to create buttons, how to use buttons, how to move from scene A to scene B.

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‫And in the next video, we are going to populate our game scene and clean that one up.

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‫All right.

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‫Before we do that, let's clean our assets folder because now we create folders for all the different

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‫parts of our game in order to keep everything clean.

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‫For now, it's not really that necessary because we only have six files or seven files, but it's going

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‫to be much more difficult later on or much more important later on, the more complex games get and

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‫the more different pieces you have.

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‫So what we need to do is create a script folder, a folder for all the scripts, and I drag my play

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‫button script in there, and then the next one is for my prefabs.

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‫It's always important to have a prefabs prefabricated folder.

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‫So I drag my main camera in there, then I create one for fonts

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‫and I drag my Munroe font in there and one for materials, materials and drag my black material in there.

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‫So as for the scenes, you can create an additional scenes folder, but what I really like to have is

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‫my scenes at one place, which is in the root folder of assets.

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‫Great.

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‫So now let's save the scene, save the project, and see you in the next video.