All language subtitles for lesson086

Alright so now we can go ahead

Jump into a new player script that we created

Actually start doing some code

Allow player to move

The first thing I want to do is actually extend the new player

Night necessarily to the monobehaviour

Actually first

2D physics object

Script

Created

I'm going to be doing a lot of this

In his game kit actually I think the only time that week's standard to anything

Are new players actually an extended a physics object because we wanted to have it love properties

The physics object script

Create

In that case a gravity modifier

That is specific

Two physics objects

I really want to use rigidbody gravity because our physics logic gravity is going to be much more specific

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To our 2D platformer and give us a little bit more control

That's all we're going to do here we're just going to extend to physics object now it's a physics object

Extends to the Mario Javier so the new player script

Actually does extend to the monobehaviour through the physics object

Space Leeds

Current Script if you will

Was Aladdin properties that allow it to move in a very specific way

Stop we had Sophia jump back in the unity even though we have our gravity scale on the

0

A new player script because it extends to the physics object

Actually gonna fall

Because the physics object has its own gravity

Independent of the rigid part

IPlayer is now falling

In order to get iPlayer to move we actually need to manipulate

Property in the physics object

Or a variable in the physics subject

Cold

Velocity

Without getting too much in the weeds here the target velocity is actually going to change the velocity of the physics object

And moving around

Tesco two new player here

You know that if we actually type in Target velocity

Automatically recommended a variable called Turkey velocity

We haven't actually declared as variable or

This variable anywhere in the new player script

That's because it's a variable associated again with the physics object which were extending two so we can actually use it and

So we can say target velocity equals

Say

1

Why do we have a red zig zag underneath this love we have a Rover it says cannot implicitly convert type

Integer

To Unity vector2

Well what I mean is Target velocity is a vector to meaning it's an X in a y

Vector3 if I just three has a Z axis of acta2 is just x in y

Go to a line 2D games because we don't need a change of Vectra 3 and you can go to the physics object to actually see

Score of the top here

Travelocity is declared in it's a vector 2

Send this to a new vector to

Sophie Collet new vegetarian

I see one and then 0

You say that out what happens inside of Unity

Take a look

Play

Man united players moving to the right

Survey of 1 and then Falls have to map

Just like we did in the previous tutorials

What we just said this to our actual input values

We can do new vector2

Input.get access

Horizontal

The why we don't want it to be moving in the Y Direction currently

Do it for now

Bus driver sound

Perfect do we move our player

The left and right

Let's be sure that we can actually change how fast the player is actually moving

What we can do is actually

New variant

Mummy share them is a serialised variable

N18 sure that it's a private for now it's going to be a float

Max speed

Buy the Falklands make it 1

7 unity

Soccer player here

You can see here that we have 3 properties

Popped up

Component

These two are associated with the

Standard behaviour script which is the

Physics object

Make a worry about these at all

What is the max speed we going to change this to 3 if you want to make it a little bit faster the plane

It's a little bit slow when we speed up a little bit

So why are we not getting an effect

Our player

If you guessed it that means you're learning

And you're actually better than me we need to multiply

X max speed

Are horizontal axis value the float value

When we press the left or right button

Is there a x x 2 speed it so if you press the right button

Goes to 1 we x x max speed which

Is wine here but if we go to Unity editor is actually three so it's going to be 3

Unless to be -3

Play and try again

Here we go

It is

Moving left and right

That looks great

If you follow along in the

Unity basics

Portion of this tutorial

You may be wondering

Thomas we actually at the x x x deltatime anytime were moving an object

The answer is yes so we should go to our target velocity here

Are we actually iterating anything in this script in the single line by Italy I mean

Increasing any value

We increasing at a specific frame rate

Actually no we're not using any sort of plus equals here

Are we doing a setting a value target velocity

To another value

What is Target velocity actually doing if you go to the physics magic script

Velocity

Type in Target velocity by pressing ctrl f

Search where it's been used in physics Optics script

You can see them velocity actually matches our target velocity here and was some clever maths when I can only get

When you can notice that a delta position has been created

And that is being multiplied

X x delta time

Tell this may look a little bit confusing don't worry about it too much but just know that we are actually

Multiplying x x deltatime

And we don't really need to worry about doing it right here

Because again

It's actually been calculated right here

So where do you want to play a to jump

What if we go into our new player skript universe we use target velocity when moving the player to the

Play in left

But I getting too much in the weeds here if you go to the physics object script you noticed that target velocity

Informs what the actual velocity in the x-direction is velocity is part of the

Velocity in the x-direction it's not really part of the equation for velocity in the y-direction

So we can actually just manipulate

The lottery itself

To create a jump

Because velocity is a very well that new player actually can manipulate

Why we can say equals 10

See what happens

Stop he flies up in the air

He's just flying

That's great so

Is doing well we need to do kind of the reason why he's lying because again

Update so velocity that why is constantly set to 10

Meaning his velocity is constant 10 and it's projecting him up but it's almost as if fuel is being

Rejected from his feet and is flying into the atmosphere

So you don't want to ask me that white always be 10 so what are we going to do here

Create a condition

And let's write some pseudo code here if the player

Prices

Jump

Set the velocity

2

A jump

Power value which in this case is 10

So again guys is your comments any time you see these two little / here there's a comments

So what is the jump

Input value

Are we going on unity here and we go back to our project settings

You can see that

Because these down

You can see that jump

Is actually

Fighting type

So when I can use get access to actually going to use get button

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So we can type it like this

Input

Get button down

Jump

Make sure you use your curly brackets here

Is going to set up velocity that's why

The 10

Play here

What happens

Alright

That we've got a jump here

That's wonderful a question that popped into your head

And if it did

Granule

Penneys why is it the weekend manipulate the Y value of the velocity

We are meant to be like the Y value of a transform so transform that position

Why

Equals 10

Why is that

Well it's because as you can see here we cannot modify

Return value of transform deposition

Because it's not a variable

This is a vector 2

And it's a variable

Transfer deposition is an actually a variable

In order to do that you actually remember you have to do new vector3 and then you have to type it

This way

Something like that

Can I tell you modify a transformer value in a transfer value can be

Position rotation scale

But we can manipulate the Y value in the X value and Z value of a vector 3

Variable or a vector to variable so just keep that in mind as you're working on your game

Do you know this we can actually double jump

Wait now

And that might be cool in a jumper game

Purposes we only need one jump

So how exactly do we do that

Well there's a beautiful wonderful

Convenient variable

In the physics object Script if you press ctrl f

To find a variable

It's called grounded

And like I said the physics object script is a very complicated one

And one of the reasons why I use it so often is because the grounded variable is a very important

And it uses all is weird Matthew

To calculate where they were actually grounded meaning are we touching the ground or have we left

Round is a very simple very boards a bullying in 80 the true or false

So we got to do is

Create an additional condition here

In what you do that is you use the end sign

Not once but twice as just the syntax

So if the player presses jump

And

We are grounded

Set the alarm 30 so are you doing

Grounded

Is set to wait when is it

True

Soliciting weird syntax here let me try and explain

Anytime we want to use the word end or the sign and just used two of them and

Anytime you want actually check to see if a value is true or false you can use to equal sign

Not one we try and use one and save it

Jump in unity

Should get him there here

The left hand sign

An assignment must be a variable

Property

Orient Exeter

Did you see the universe can I confused

Doesn't really understand what we're trying to do here trying to set a value

You can set a value outside of a condition so for example we've set the last 30 to 10 with the ick

Well I'm really setting a value in this condition are we

Actually checking the value

That's why you use

2 equals signs

Anytime you're inside of the printer sees of a condition

Anytime you really checking to see what a value is

Can you use two equal signs

You going to be using two equal signs of the time when you're scripting in your eyes going to be using

Do anal signs all the time when you're scripting

Let it play

So because of the ground is here

Until we're grounded again

Curly kale

Perfect

Alright that was easy

Now sometimes you want to clean up code after you've written it and it works and you know works in fact the out are you there

Best to clean up your code after you know it works

Why no we can probably actually just remove all of this

In by the fault unity understands that if we say and grounded really saying is in grounded

Equals true

If you wanted to check and see if it was false

We either do it this way

If granted = false

We can do it this way

We could remove this

And use an exclamation mark at the beginning

What's another way of writing

Equals Force

Because we want to check to see if it's true

All we do is there

We press the jump button

And

We are grounded

Lottery is going to be 10

Just double check make sure the back code clean up

Actually works

Awesome

Very good

Everything works

And we can be girl with the next section