All language subtitles for lesson105

That you may know those guys that when we actually play here

The Clare

Loses references to a couple things

When we actually go to the next scene

Tell before we enter the new level or the new scene

I've got the new player here

And you know that we have some references here to the coins the health bar and the inventory on the radio

How far coins in inventory item

So because these UI elements

Are going to destroy when we actually go to a new scene

Because we haven't actually Mark them to not destroy

When we enter the new scene

We are going to lose those references ok

Even though level 2 does include a new UI game object with all of the various items inside of it

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The player here is trying to find a reference to the ones that were on a last scene

With a missing image

Missing image in missing text

So when we try and collect something is confused it doesn't know where I put it right where do I put the health where do I put the UI

So what we need to do

Is creates something called

A game manager

Don't wait to talk about the game manager a lot of you probably wondering when we were going to do a game manager

I want to wait because this is the perfect example of why you need a game manager

Game manager is a great place to store references to various UI elements

Maybe some inventory as well some additional inventory to reply or maybe when I move all of the players inventory

To a game manager script

Islam things you could do with a game images script

I'm basically a game manager a good way of thinking of it is like a backpack for the player or for the game

So as the player is not destroyed in moves from scene to scene

The game manager is going to follow along with him storing references to various values game objects UI

Etc

So basically what we want to do here is Rachel and move all of our UI elements into a new game on

Make sure everything's deselected here

I'm going to create an empty gameobject I'm going to call this

Game manager

What you want to do is just make sure that the position is zero

By the way guys have you noticed that when you create a new game object

And it says recttransform

That's because when you are selected and you create an empty child

It's actually creating in empty gameobject with a rect transform

By default because we were inside of a UI canvas just be careful when you're creating new game objects from here

Solicitors in game managing just make sure everything is $0 and the scale is 31

The reason why is because we're going to drag the UI prefab and put it inside of the game manager

Ok

So why are we just making the UI a game manager

What's because we can put other game objects inside of this game manager

Any game it treated like a backpack that follows the play around

The movie the other items may be a

Cheat codes prefab or a main menu or a Paz menu

Can I see you have none of those destroy

Well you will have them inside of the game manager here

Ok it's the next thing I want to do is just create

Can you see shop script

We're going to call it

Game

Manager what happened

By default unity knows that game managers are important

Create a Cooler

I can't hear

Hey hey this is the game manager

There is no limitation about what you can do with the game and you can do whatever you want with the game manager in

Play a game manager is going to be

Different

Turn developer you might read it totally different then I will

Just drag this game manager

Emergency

And wrinkly office manager here

And the first thing I want to do guys as we want this team manager to follow the player around wherever he goes right

So what does that mean

Will it put a new player in you remember what we did here

On start

We said don't destroy on load ok so do that

On start don't destroy on load

What do you not want to destroy

This game magic

Anytime you have a lowercase game object instead of a gameobject means you referencing this game object

That out

Down Under Fire

We renamed it

Gohenry name it

Play Magic

Equals

New game manager

You can have it whenever you want it you can name it

The master Dee manager or original Game manager

Or maybe even getting manager but I'm going to rename a new game manager and

The player is renamed to new player so anytime you see the word new in front of a game object it means that it's fear

No one

And it's not going to destroy and load of any scenes

Ok

That way when we go into a new scene

The game manager on the new scene is going to go hey there something called you gave manager and not going to be in this scene

What will destroy itself

Where to take this awake function and do the same thing we did

With new player

Does copy that

Go back to a game manager

A member of week happens before star

Ok so the moment we hit play

We're gonna run this

If there's a game object called new game manager

Destroying

What if we hit play

And we load into the very first level

Nothing's going to happen here because there's nothing called new game manager

Dennis going to jump to the start function here

Anything to say

Don't destroy me and then rename me

Play any other game managers better in another scene

Find your game manager in going to get this

Team logically working with

For the new player

There's one more thing you want to do

When are we going heading created Singleton for the game manager as well

So we can reference the game manager

Just copy this

From the new player script

Just paste it right here

This changed

The words

So we're just going to create

An instance

Navigate manage

Is Singleton instance

You just change out the word here

Is it

So now look at this one

I can reference the game manager

Whenever I want to

So for example in new player I could go game manager that instance whatever

This is where we can store certain variables in certain references

And maybe we don't want to store inside of the player ok

What's go ahead in test this out

Before we had play I just make sure level 1 and level 2 match

But save level 1 and level 2 Unit 2

Does an actually have a game manager

Why do we need a game in level 2

Who won the game manager just going forward

I mean honestly other than the environment changing we really want everything to be identical to level 1 we want the same

We want the same game manager

We want to see new y Paz menu etc ok

So if we hit play on level 22 actually tested out

Where I can get the same behaviour as level one

Level 1 in the game manager now right

I want to do is make sure the level two matches level one

In terms of the UI the player the game manager etc

So what we going to do is win a drag the game manager

Over to a prefabs folder

Now we have

A game manager right

So what you would do is if you got a little to make sure you save the level one

If you got a lot of two words going to delete the UI

Going to drag the game manager

Again I need to clarify as much as I possibly can hear

We're only putting a game manager instead of level 2

So that we can test level two

Or if we have a saved game and you're on level 2

If we load Amelia from the main menu what we want to make sure everything in level 2 is there if we

Right

Just because the game manager in the player

Iron level 1 in will load in the level 2

Does it mean that we don't also need a game manager in a player in level 2

Even when we load into this scene in me Lee from the main menu

If that doesn't make sense guys just keep following along with me I will make sense especially when we start flashing out this prototype

In making it a full-time game

Ok so let's actually test at level 1 and level 2 and see if the game manager follows the player around

Alright

First off what's a new player and new game manager have been placed inside of the don't destroy on load

Section of a hierarchy that's great that means that these two game objects and their children

Well pretty much

Survive

Is a good way of putting

A new scene load right

Ok so we get the key was jump on over the next level

So if we jump into the next level

It looks like

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Alright but you are works perfectly

And when we collect items

Rui

Still works that's perfect

So you may wonder is the game manager just an empty script

Is it just an empty gameobject that stores the other game objects

The answer is no you actually want to store variables in references and maybe some inventory

Game manager

Mainly to make you feel saying while you're creating your game

Is really about organisation of you game for the long term

Not going to change anything for the players experience

Variables

In the new players script

Can we actually store

In the game manager

Will you notice that we have an inventory item image reference then it's just referencing the inventory item

So that we can actually swap it out

Only collecting inventory item

And we also have references in the new player script for the health bar in the coins

Really good examples of things we should be storing inside of a game manager not necessarily the news

Tell bear with me for just a second as we going to new player

In actually move these three variables

Inside of the game manager

Ok

Take these to hear the health bar and the coins text

When you copy those

Pace them is over game manager

That's about right here save those

And what else

Inventory item image

Will Take That

Save it

And then I stand here as well

I don't worry guys you noticed that we have the red zig zag that's because we need to go to show potential fixes

And also his using unityengine.ui is the solution here so why

Add

The namespace reference appear

That means we can now use these UI references

Ok

Ok

So

Question back in unity and take a look

Everything is working properly it looks like and get a tonne of errors which can make you

Play don't worry guys the solution here is pretty simple like

It says the name health bar does not exist in the current context

Ok so it looks like because we moved the health bar reference

Into the game manager

Window actually make sure

Changing

How we get this reference ok

1-hour interrogate manager so how do we get it we go game manager incidents health bar

Into all we have to do is just paste this in front of all of these

References to the UI elements

Because now those references are stored

Inside of a game manager

Ok

Alright

Hopefully

Everything is cleared out

Now

Wigan tip Leigh

Looks like we have some no references here

What's happening is we actually having to find

Inside of the new game manager

Where all of these are

So we move them over to the manager but we need to make sure that we tell the game manager what the reference

Actually pretty simple just drag health bar here

Text here

An inventory item image

Here

Nearest Aldi's turned bold again that's because we just change

St. Aspen

Navigate to the prefab

We want to make sure that we apply all those changes to the everyday manager prefab in every scene

Handel's references

Thing is that these references

Global rights of a level two

Can I go to the game manager here

It's not referencing the health bar from level one is actually referencing is child

And child and Child

Alright so let's go level one here and we can clear up these errors

Can you play

Alright

Looks like

Everything is in working order

Just double check here go to the next scene

Perfect alright