All language subtitles for lesson093

Banana cold is getting a little bit more complicated

You may start to notice something called redundancy

We've found the player here

Also found him here

We found the component here and we've also found here

So we basically done the same thing twice when we should only do it once

Why can't we have a reference

To the player in the new player component only once so they have to do this over and over and over again

Wine this is a lot of typing so for example if I wanted to do a lot of different things with the new

Describe so what if ontriggerenter I also wanted to

No maybe set the m o as well I have to go game object that fine player oh my goodness

Takes forever I don't like coding I hate my life we don't want to do this that's just a mess

So

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There's two ways that we can solve this

First way is to create a reference

The player

So we can do this

Like this we can say

New player

Is

Cold

New player

Is a = game object

Find new player

Getcomponent

New player not our doing the same as acting

We're doing here

That's what new player is

Then are we going to do is go and replace this to new player

And then

New player

What we just done is we've created just like we do AP remember we can create variables up here before the

Function

What we done is actually created a

Variable inside of a function

So this new player variable

We just created it

Reference it below whenever we want we can do this at any time because a new player diablo

Equals in

New player that transformed opposition equals new

Hector 30413 position into the zero position in another why we want to do that but

We could reference new player over here

Ok

Here's the problem

What this is this is a local variable

And it's local to this function

So it because it inside of this function

I can actually reference anywhere else I can't reference it in the update so I can say new player

Dart

Coinseed like it just screwed it up

It doesn't exist inside of the update

The reason why most your variables should be declared

Outside of your functions is so that those functions can use them

So because these functions are born outside of the start function outside of the update function in outside

Dysfunction

Is that we can reference these wherever we want

So what we can do here is take this

Delete it

Pasted up here

The problem is you can actually use gameobject that find

Outside of a function rate so we actually can just go new player is new player will it delete that

So we prayed in a new player variable

And it's of the class new player

Pain in side of the start we can actually find it

So new player

Equals

Find new player that get component new player

Now

Remove that really quickly on you that

The animal is well here

So now we can reference new player all over the place

Reference the inside of the update

We need to have a semicolon here

Errigal

Leaving reference it inside of the update

New player

The notice now we can do we can change new player that ammo and we can make it 1000 if we went inside of the up to

Sunshine wicked change the players

Coins if you want to coins collected

Equals 9

Change it inside of the update function and we also change inside of the ontriggerenter function

We can use this new player reference all over the place

Inside of a collectible script

As a recap guys

You're trying to avoid redundancy and that is using lines of code over

Over again that are identical

The Look

We created a variable

In it's not a bully and it's not integers on a float in this case this variable is a

Glass

New player

Today's one single line of code

Doesn't allow unity to actually know which new player class with referencing

Well

We're actually referencing the one on the new player

So that's why

When we start the game number when the start function here

The moment we start the game

Immediately we want the new player variable here

To find the component that were actually trying to reference

So it's going to say new player equals

A magical find new player so I can find the game object

And then I cannot find the component

New player

Now you need a nose that's the one

That we want to reference

No because we found that component

We now know

Any time we use this variable it equals this

So we can use it all over the place

The moment our character touches or triggers into

This collectible

It's going to be right the coins collected up one

Is also going to fire the update you a function that's inside of new player

Instead of writing this over and over and over again we can just have a reference a single reference to it

And use that single word

Over and over again

This it makes sense to you

We're gonna keep going and it's going to slowly start making sense more and more

As we use this as often as we can

Again anytime you see a line of code that identical

You really want one reference to that line of code if you can

So in conclusion guys if you ever are using a line of code over and over again so in this case

It was this line here we were using that multiple times

Accuracy that that's called redundancy and you really don't want to do there it makes it painful for you makes

Enabled for your team because you've got a cold it's a written over and over and over again

Also slows down unity every time you find a game object and then find a component

It's actually slowing down unity just a little bit

So if you make a single reference right here

When we fire the start function the moment we start unity

Unity nose immediately what new player is

Now I can actually use their variable

To collect coins and update the UI

Save it out and just checking to see if it works

When I get a worry about this morning's here guys you going to see a lot of warnings when you're making your game

It's good to try and get rid of them but I'm just gonna clear I'm out for now

Alright so looks like we have

Strange figure out what this area is

Is object reference not set to an instance of an object

What is the price of an easy solution with double click on it and see what happens

Ok looks like it can't find new player

Looks like we've got a little bit here about in the future how you can avoid these kinds of mistakes

Game object that finds new player will remember we don't actually have a game object called new player

Gameobject has just called

Player

As you can see it unity can't find that game object

It's going to tell you

So we need to do is make this player

It said

Jump back in the Unity

And let it play in see how it looks

Alright it's like everything is working

Awesome

That guy is another way that we can tell unity

Who new player is

And also which component with referencing

We can actually remove this completely

So all we have is this new player

Variable that doesn't actually reference anything

Holidays is Ava type new player

Have you got back in the Unity

Universe we don't get any areas around

That's because unity is thinking well

Maybe Thomas is going to tell me in a different way

How exactly could we do that

Go ahead and select this little coin here

Like this coin

And you noticed that the new player variable isn't showing up inside of the component

What's open up the collectible scrapyard

What's go ahead in serialise this

Serializefield

Ennis pizza ring make it private

Go back in the unity here

And you can see

The Honor collectible script now we have a new player

Ok

So now we can see the new player well you can see that it's set to 9 it doesn't know which new player were actually Reverend

Well we can actually while it's selected

Just drag the player

Over 2 this field is automatically going to

Find

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So

If we had play here

You noticed that

This one here

Actually knows who the new player is

So we can actually collect it you'll fire that update you a function in there we go

These

They don't know you can see we have an error

I don't know because we didn't actually

Rag

A player over to this field here

So that is why

In our case

We actually white

To include

This

For every single collectible script

Sometimes you gonna want to actually find it in The Script

Are the times

Especially if you only using a gameobject 1 so for example if I was referencing something from the player script

Actually just drag coins text over here

Because I'm going to have one player in the entire game

Dragging the coins text over here

Actually makes a lot of sense

So we going to have a new player script

We can actually just get rid of this

Now

Is there a finding that in the strip

Just told unity with a simple drag-and-drop

Where are coming to the Pony actually is

If this doesn't make sense guys we're gonna be doing this a lot in these tutorials

So don't stress too much I just keep going

Hopefully you'll understand when you want actually read out the script and maybe when you want to drag and drop a good rule of thumb

If multiple objects say enemies enemies hundreds of enemies

Are referencing one game object

Do you want to do that in the Script

OK mate that's fine

Getcomponent

If on the other hand a single game object for example this player

Is referencing another single game object so in this case

The coins UI element

I see no reason why not just drag it over

Infidelity