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Hello and welcome back,

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my fellow game developers.

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In this video, we are simply

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going to be explaining
what Unity is,

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what Visual Studio is,

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how they communicate
with each other.

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And we'll explain
a little bit about

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the interface of both
these amazing tools.

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So first of all, what is unity?

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Let me put on my laser.

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So laser please. Okay.

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So unity is a cross-platform
game engine developer by,

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developed by Unity Technologies.

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So what do I mean
by cross-platform?

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Cross-platform means
that it can be used

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on different kinds of platforms.

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For example, unity, Windows and

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Mac OS will be using Unity
to develop our games.

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And we of course
going to be using

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this Unity engine right here.

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So before we move on,

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let me just show you the
interface of unity and we

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will move on to
explaining Visual Studio,

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and this is unity.

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Congratulations, you've
made it this far.

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So first of all,

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we have our toolbar right
here about everything.

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And this toolbar
provides access to

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the most essential
working features.

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On the left, we have
the basic tools for

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manipulating the scene view

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and the game objects within it.

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In the center we
have the play and

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pause and step
control right here,

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which allows us to play
our game, pause our game.

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And then we can also add
a step frame by frame.

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The buttons on the right
gives you access to unity,

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collaborate, and the Cloud

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which will not be using
and the accounts.

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We also have the layers
right here that we will be

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using a lot in this
course for our project.

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And we finally have the
layout and bi-layer.

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This is our layout right here.

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So we can change the
layout, for example,

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the two by three
or the four split.

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Or we can basically use

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the default and this is what
we are going to be using.

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So if you don't have
the same interface

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as me or different
kinds of layouts.

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Simply click on
here, go to default,

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and we will both have
the same interface.

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Now, next thing I
want to talk about is

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the hierarchy window right here.

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So if we click on
this right here,

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we can see that we
have a main camera

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and this is our scene view.

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We'll get to our
scene view and we

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have the directional
light right here.

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But this hierarchy,
hierarchy right

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here represents every
game object in our scene.

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So each item in the scene
an entry in the hierarchy.

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So the two windows are
enhancement inherently linked.

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The hierarchy reveals
the structure of how

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game object attach
to each other.

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And you will see in more detail

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what I mean by attached
to each other.

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Now next thing we have the
scene view right here.

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And if we right-click
on our mouse button,

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we can actually
move around using

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the a WASD keys right here.

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And you can see that we
can move around our world.

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And in here we are going
to be building our games.

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We also have another window
right here that is the game,

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and this is our game view.

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So this is how we see

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our game from the
camera's perspective,

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will be changing
everything around.

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And this is where we are
going to be most focused

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on later on with
our game creation.

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Next thing we have

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the inspector window on

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the right and let
me go back scenes.

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So in an inspector window,

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you are allowed to view and edit

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all the properties of the
currently selected game object.

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So as you can see
right now we have

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the directional light selected.

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We can increase and
decrease the intensity.

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We can change the color,

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we can play around
with everything.

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And we also have the
main camera right here.

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We can also change and play

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around with various properties.

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And the inspector right here.

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And these technical
words are very important

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because I will be using
them throughout the course.

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So remember a
hierarchy inspector,

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the scene view,
the game of view.

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And finally, we have the
project window right here.

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And this is where we display

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the libraries and
assets of our game.

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So if you click on
assets, currently,

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we have nothing else
besides the scenes.

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And if we double-click
on scenes,

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we have the sample scene right

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here that we can double-click
and enter, we can save.

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So we don't have anything
besides our scenes.

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Next, let's talk about Visual
Studio and what it is. 0.

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Okay, so what is Visual Studio?

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So Visual Studio is actually

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Microsoft Visual Studio
and it's an IDE.

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What is an ID?

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It's an integrated
development environment.

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And what that means
is that it's like

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an environment for us

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to develop integrated
code into Unity.

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So this is a very
complicated explanation,

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but this basically is where we

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are going to write
all of our code.

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And VS will help
us write the code.

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Use to manipulate game objects
in Unity using scripts.

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So what our scripts,

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this is the way we use
Unity with Visual Studio.

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So we want unity to communicate
with Visual Studio.

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In unit, you are going to
be creating game objects.

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So for example, the car
that we want to move

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while not got the player
that we want to move around.

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The maybe objects
that fall down,

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maybe some kind,
the weapons that

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shoot the monsters
that attack us.

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We put these, all of
these objects in Unity.

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But whenever we want
to manipulate them,

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we are going to
use Visual Studio.

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But unity and Visual Studio

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don't automatically
work together.

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The way we make them
work together is through

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these scripts which
are dot CSV files.

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And this is where we
write all of our codes

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in the dot CSS files in
Visual Studio and there,

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and from these scripts we
are going to manipulate

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the behaviors of the objects

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that we have inside of Unity.

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So let me just show you
how Visual Studio looks.

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So this is Visual Studio.

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Let me just zoom in a bit.

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And in here you can
see that first of all,

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we have these three lines
which are using something,

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using something and
using Unity's engine.

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Now these are called namespaces.

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And what these are,

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they are a collection
or a library of codes

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that allow us to use
certain things in our game.

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So for example, the
Unity engine allows us

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to use different
aspects of unity.

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For example, the
physics in Unity.

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It allows us to access

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various details in Unity
that without this.

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So for example, if we remove
this line right here,

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we can no longer
use mono behavior.

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And because we are not
using 10 behavior,

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which we'll get to in a second.

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We can no longer use
start and update.

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So we'll turn this back on
and we can use mono behavior.

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Before we get to that,

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let's first talk about
what public means.

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Public means that
it's for everybody.

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There are two types.

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There are public and
there are private.

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We'll get to that also.

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Later on.

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We have the class and
we have the class name,

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and this is actually
the name of our script.

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And we will learn that we
have to always make sure that

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we name our class
correctly the first time,

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because it will create a
lot of problems for us.

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So this is how we create
a class and all of

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this code will be written

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automatically so you don't
have to worry about it.

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These two points right
here means that we are

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inherited, inheriting
mono behavior.

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So what is Monte behavior
10 behavior are, well,

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we use behaviors that

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are already built into
Unity that allows,

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allows us to control the
various game objects.

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And because of money behavior,

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we can use two
methods or functions,

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which of course will
be later on getting

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into like start and update.

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And actually in here
you can see that we

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have this green line.

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And this green line means
that this is a comment.

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And whenever you want
to create a comment,

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you simply put these two
back slashes behind it.

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And whenever we put two
backslashes behind any code,

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it means that this is
a comment and it will

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not be executed in coat.

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Great, so what is start?

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Start is called before
the first frame update.

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So when ever the
game object that has

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this script attached
to it starts,

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the code inside of this start
method will be executed.

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And similar to start update
is called once per frame.

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So every frame our
game goes through.

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This method, update will be
called an everything inside

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of it will be executed
to put it more simply,

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start is where we put
our initial conditions.

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So for example, the
weight of the car,

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the speed of our player,
the climate maybe.

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And then update is where
we make our car move.

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We make our player jump,

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and we make the climate change,

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for example, the wind
blows up or something.

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And the other, I don't know.

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So this is how we basically
use Unity with Visual Studio.

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Of course, in the future as
we move through our project,

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you will have a much,

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much better understanding of

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the start and update
and everything in it.

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So don't be worried too

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much if you don't understand
everything right away.

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But now you have a
challenge in front of you.

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And your challenge is going
to go and make a mass.

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So open Unity and mess around.

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Click on a few things.

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And when you're finished,

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go to the next video and
we are going to be making

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our first code and get started.

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And it's you still don't

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know how to create
a new project.

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Don't worry about it.

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In the next video, we
are going to create

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a project and make our first go.

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So I hope you enjoyed
this video and

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I'll see you in the next one.