WEBVTT

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Game Advanced
Prototype 1

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GCC Academy

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Hello

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This is Youngho Lee for shooting game production

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Creating a game with Unity

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includes board games, shooting games

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FPS and TPS games

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and MMORPG games as well

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so variety of 2D or 3D games

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Making all these games of various genres

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means that there must be a virtual world

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simulated

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In shooting game production

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we will learn about mechanics and vector

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to create that virtual world

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and will create a shooting game

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Starting a project

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will be done in a practical way

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First, we'll separate the prototype version

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into four steps that create the core content of the game

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Then on alpha version

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to have all production elements included

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it will be done in two steps

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Lastly in beta version

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we will learn about the optimization and management of games

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Through this 3 step production process

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you'll get familiar with the overall project production process

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Let's first learn prototype 1

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for shooting game production

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In this unit

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we'll create a project

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and learn how to set that made project

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And major game objects

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that is, camera, lighting, and player

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will be made and we'll learn how to set them

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Lastly, in Unity Engine

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and main life cycle function

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and main life cycle function

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Project Production and Environment Setting

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Let's get started with

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project production and environment settings

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First open up Unity Hub

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and let's create a new project here

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We're currently

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creating a project with the 2022.3.49f1 version

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Here, we'll do basic project

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3D (Built-In Render Pipeline)

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Select this one

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and name that project Shooting

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Click on create project to create

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Once a Unity project is made

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it will load the necessary resources

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and compile

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Once it's made like this

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let's set the environment of this project

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First of all

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my screen looks like this

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which is how I organized it

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but your screen will have it

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like this by default

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This, from layout here

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click on the button 2 by 3

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and then the screen will look like this

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The layout has changed

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Hierarchy, Project, Inspector

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Here I'll drag the

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project tab

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to put it down here

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Put it under hierarchy

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Let me push this one a little and put it like this

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to make the layout neater

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Then on the left, we have the scene window

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and under that is the game window

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In the middle, hierarchy, and under that, project

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And lastly

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the inspector window

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This is how I'll have the layout be

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Then now we'll do a shooting project

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let's start with a 2D mode

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We're not actually making a 2D project

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but we'll expand from this

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like making a 3D project from a 2D project

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so let's start from here

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First, on the scene window

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switch that to 2D mode

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you can click on the 2D button

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but this way

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it might bother us during other parts of the production

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So don't click on the 2D button

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and instead on the top right

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there is Gizmos

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With that Gizmos

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Here it says persp

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which is short for perspective

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Click on this and change it to Iso mode

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Here there are X, Y, Z

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X, Y, Z

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There are these three axes

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Click on this and the Iso part

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will change

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Let's try

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Click on x and it changes to right

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Click on y and it changes to top

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and click on z and it will change to front

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2D mode is looking from the back

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so we'll have back mode

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I'll click the part

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opposite from z

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This is front so the back

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will obviously be here that you need to click

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Then it changes to back

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and there are Iso mode lines, three of them

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Then the perspective mode

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shows depth perception

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So when an object is in front it looks big

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and when it's far then it looks small

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When the object is behind there

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it will look small like this

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But these three Iso

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are Isometric view

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This is used in 2D mode production

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Usually 2D mode

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is expressed using only two axes

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We call this two axes ones

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orthopraphic

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and there is no depth

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Since there's no depth there is obviously no perspective

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So in 2D mode, we have it like this

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and work on it

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The 2D button here

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If you click on that, it only gets rid of the Gizmos

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the screen actually looks the same

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Let's me close the 2D mode again

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and work on it like this

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Camera and Lighting Placement &
Player Object and Script Production

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Next we'll see camera and lighting placement

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On the screen, on hierarchy

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there are main camera and directional light

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We're in 2D mode so here, camera

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and directional light, these two are here

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The light part

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might not be needed for 2D

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The recently added Unity feature

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provides a function where light is applied in 2D mode

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but this is only when advanced features are used

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and in basic 2D, we do not need lighting that much

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First let's set the main camera

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The camera has perspective now

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I'll change it back to perspective mode

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Click here

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And when you select

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camera

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you can see

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I'll move a little faster

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Like this, a trapezoid

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shows up, right?

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It has this trapezoid shape

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From the side

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it has this shape

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Right? Like this

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Let's go back to 2D mode

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It'll look like this in 2D mode

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We call this part

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View Flow Stem

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and when we're expressing perspective

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it has this trapezoid shape

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Right? A trapezoid

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But we're going to work on it on 2D mode

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so this must change

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Once you've selected main camera

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on the right's inspector window

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we will be able to edit the detailed properties of the main camera

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Among the components, there is camera component

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Here, projection

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is what let's us change the camera property

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Projection is there too

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3D is basically

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expressed on a 2D screen

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There is a flow that it follows

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which is the 3D rendering pipeline

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Here, this projection

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the 3d rendering pipeline

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goes through the process of projection

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and here we choose if the object

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will have perspective

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or not, so if it'll be 2D

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You can think of it as the camera having

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a 3D lens or a 2D lens

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You can see perspective here

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this is what expresses the perspective

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And on the bottom

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open this by clicking on the dropdown button

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and it says orthopraphic

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This is what changes it to orthogonal coordinate system

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Then on the screen

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with main camera

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it shows a rectangular shape, unlike before

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Change this to Iso

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to Isometric view

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it shows this rectangular shape

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Then this has a orthogonal coordinate system

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which is perspectiveless and 2D

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On the 2D scene, not only this

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but when we're making a 2D project

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the camera also has this content applied

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Get it?

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Let's work on it like this

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Next is directional light

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In 2D mode, we don't need lighting

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So let's deactivate

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the light component and turn it off for a second

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You can also erase this

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or just turn it off like I did

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then there will be no light

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Then it will show dark images

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So now let's work on

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how it could show the original object image colors

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by working on the settings

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When you go to the very bottom in window

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it says rendering here

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Window menu, rendering

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and there's also lighting

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Let's open that

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Then a lighting window appears

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First, we'll check if the auto generate

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is deactivated

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If this is checked

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every time we move an object

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There's this thing called lightmapping

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It's putting light on objects

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giving an effect of a screenshot

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but that takes a long time

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and in 2D, we don't need that

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so let's have that deactivated

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Next, here on environment

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click on the second tab

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Here, in the world we're working on

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there are three lights

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The basic light

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is directional light

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Directional Light

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Directional Light

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This is like sun rays

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Only one direction

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Can that happen?

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Sun shines light to everywhere

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360 degrees, no?

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But from the Earth's perspective

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if the sun is here

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we view it as there being just one direction that's coming to Earth

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So it's one direction for afar

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This directional light

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when there is a person on Earth here

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how close we get to the sun

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might not matter much

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Us getting 100m closer to the sun

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doesn't make the light or energy from the sun different

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Getting 1,000km closer

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doesn't make that big of a difference

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Since we are millions of kilometers apart from it

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it really does not matter much

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But what angle the sun is shining on Earth

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does influence us

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So this directional light

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is not related to location

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but is with direction

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It is related with direction

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It influences us

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Next, apart from this directional light

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there is also point light

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This point light

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literally puts this point as the center

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and the light spreads in 360 degrees

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An example of this

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is a torch

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When we light a torch

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the light spreads in 360 degrees with this as the origin

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Right? Normal lights that we have at home

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Those are all like this

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So this point light

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means light that spreads 360 degrees

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from the center object

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the light as the origin

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Next is spot light

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and this is light car's headlights

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If a car is like this

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it'll also have wheels

288
00:14:37.900 --> 00:14:39.299
and with the car like this

289
00:14:39.299 --> 00:14:44.020
there will be light spreading from this car

290
00:14:44.020 --> 00:14:48.859
These lights, strangely

291
00:14:48.859 --> 00:14:50.940
spread in a circular sector shape

292
00:14:50.940 --> 00:14:54.539
like this

293
00:14:54.539 --> 00:14:58.539
We call lights like the car headlights

294
00:14:58.539 --> 00:15:00.460
a spot light

295
00:15:00.460 --> 00:15:04.780
So there are three main types of lights

296
00:15:04.780 --> 00:15:07.739
and each of them have their own directions

297
00:15:07.739 --> 00:15:09.979
Direction light goes in one direction

298
00:15:09.979 --> 00:15:13.539
and for point light, location matters

299
00:15:13.539 --> 00:15:15.140
Location matters to it

300
00:15:15.140 --> 00:15:17.059
and the direction is 360

301
00:15:17.059 --> 00:15:19.140
Right?

302
00:15:19.140 --> 00:15:22.380
And spot light

303
00:15:22.380 --> 00:15:24.020
is like headlights

304
00:15:24.020 --> 00:15:26.500
Depending on how close this is

305
00:15:26.500 --> 00:15:29.260
it can shine brighter or less

306
00:15:29.260 --> 00:15:30.979
So location matters

307
00:15:30.979 --> 00:15:35.619
and will have only certain direction

308
00:15:35.619 --> 00:15:38.340
only certain angles

309
00:15:38.340 --> 00:15:39.059
Right?

310
00:15:39.059 --> 00:15:42.219
Anyways these three lights

311
00:15:42.219 --> 00:15:45.380
have the common property that they have directions

312
00:15:45.380 --> 00:15:46.716
Understand?

313
00:15:46.716 --> 00:15:48.310
They all have directions

314
00:15:51.260 --> 00:15:54.260
So then if there is light

315
00:15:54.260 --> 00:15:58.020
These lights with directions

316
00:15:58.020 --> 00:16:01.780
When affecting our objects

317
00:16:01.780 --> 00:16:03.140
Shining light like this

318
00:16:03.140 --> 00:16:07.020
As it hits a surface

319
00:16:07.020 --> 00:16:09.619
it will be reflected

320
00:16:09.619 --> 00:16:11.659
Depending on the type of reflection

321
00:16:11.659 --> 00:16:13.940
Depending on how it's reflected

322
00:16:13.940 --> 00:16:17.380
it can again divided into three types

323
00:16:17.380 --> 00:16:19.780
Of course, apart from directional light

324
00:16:19.780 --> 00:16:21.260
spot light, and point light

325
00:16:21.260 --> 00:16:25.780
there might be other lightings according to different engines

326
00:16:25.780 --> 00:16:28.380
But those are not existent in real life

327
00:16:28.380 --> 00:16:31.700
but just made in the engine

328
00:16:31.700 --> 00:16:33.580
But basically in real life

329
00:16:33.580 --> 00:16:36.020
there are these three types of light

330
00:16:36.020 --> 00:16:37.739
Then what I'm going to tell you now

331
00:16:37.739 --> 00:16:39.619
is when this light hits a surface

332
00:16:39.619 --> 00:16:41.659
depending on how it's reflected

333
00:16:41.659 --> 00:16:43.739
it can again be divided into three

334
00:16:43.739 --> 00:16:46.419
First, the surface looks smooth

335
00:16:46.419 --> 00:16:48.140
but it might actually

336
00:16:48.140 --> 00:16:51.179
be bumpy if you look closer

337
00:16:51.179 --> 00:16:53.700
Then when light hits it

338
00:16:53.700 --> 00:16:55.299
like this

339
00:16:55.299 --> 00:16:56.859
what would happen?

340
00:16:56.859 --> 00:17:00.539
When the light came in like this

341
00:17:00.539 --> 00:17:04.099
it will hit the surface head to head

342
00:17:04.099 --> 00:17:05.660
and here

343
00:17:05.660 --> 00:17:11.780
the light will be reflected like this

344
00:17:11.780 --> 00:17:14.819
Right? Since lights reflect on surfaces

345
00:17:14.819 --> 00:17:16.500
Got it?

346
00:17:16.500 --> 00:17:18.699
So when light comes in

347
00:17:18.699 --> 00:17:20.500
the surface looks smooth

348
00:17:20.500 --> 00:17:22.979
but if there's actually

349
00:17:22.979 --> 00:17:24.300
tiny bumps on it

350
00:17:24.300 --> 00:17:27.380
the light isn't just reflected simply like this

351
00:17:27.380 --> 00:17:28.900
but how does it go?

352
00:17:28.900 --> 00:17:33.900
Diffuse reflection happens

353
00:17:33.900 --> 00:17:36.150
Right? We call this diffuse reflection

354
00:17:36.150 --> 00:17:39.339
or diffuse light

355
00:17:39.339 --> 00:17:43.219
Diffuse light or diffuse reflection

356
00:17:43.219 --> 00:17:46.540
Diffuse in English

357
00:17:46.540 --> 00:17:48.339
Diffuse light

358
00:17:48.339 --> 00:17:50.180
So when light comes in

359
00:17:50.180 --> 00:17:52.420
these have this property

360
00:17:52.420 --> 00:17:54.300
so this part diffuses

361
00:17:54.300 --> 00:17:56.579
and the part behind becomes dark

362
00:17:56.579 --> 00:17:58.660
This part is dark

363
00:17:58.660 --> 00:18:01.420
Why? Light doesn't reach here

364
00:18:01.420 --> 00:18:04.739
Right? Let me move this a little bit

365
00:18:04.739 --> 00:18:06.979
What other light is there

366
00:18:06.979 --> 00:18:10.819
This is called diffuse light

367
00:18:10.819 --> 00:18:13.459
Light comes in and gets reflected

368
00:18:13.459 --> 00:18:15.859
Let's say we're actually looking at this

369
00:18:15.859 --> 00:18:18.660
Like this, right here

370
00:18:18.660 --> 00:18:20.819
and light comes in

371
00:18:20.819 --> 00:18:23.979
then gets reflected and reaches our eyes

372
00:18:23.979 --> 00:18:25.420
It bounces off and reaches our eyes

373
00:18:25.420 --> 00:18:27.420
Then what happens?

374
00:18:27.420 --> 00:18:29.780
We say 'oh it's so shiny!'

375
00:18:29.780 --> 00:18:30.900
Glaring

376
00:18:30.900 --> 00:18:32.420
In that case, the surface looks

377
00:18:32.420 --> 00:18:33.819
like this

378
00:18:33.819 --> 00:18:35.099
Something like this

379
00:18:35.099 --> 00:18:37.819
You've seen something like this right?

380
00:18:37.819 --> 00:18:39.739
These are what?

381
00:18:39.739 --> 00:18:41.859
Lights that directly reach our eyes after being reflected

382
00:18:41.859 --> 00:18:47.260
We call them specular

383
00:18:47.260 --> 00:18:50.900
In English, specular

384
00:18:50.900 --> 00:18:54.660
Specular

385
00:18:54.660 --> 00:18:58.808
Next is a basic reflective property of light

386
00:18:58.808 --> 00:19:00.332
It has the property of infinite reflection

387
00:19:00.332 --> 00:19:03.232
Let's say that the light didn't hit the object

388
00:19:03.232 --> 00:19:06.082
but the cloud up here

389
00:19:06.082 --> 00:19:09.480
There are clouds, then the light will bounce off of it

390
00:19:09.480 --> 00:19:11.912
then it will bounce off the ozone layer and come back down

391
00:19:11.912 --> 00:19:14.862
reflect again on the ground, then on a desk

392
00:19:14.862 --> 00:19:18.512
infinitely on this object and that

393
00:19:18.512 --> 00:19:19.639
It will keep bouncing off of objects

394
00:19:19.639 --> 00:19:21.589
When infinite reflection happens

395
00:19:21.589 --> 00:19:25.189
Then at some point, when there is an object here

396
00:19:25.189 --> 00:19:28.320
Right? Light comes this way

397
00:19:28.320 --> 00:19:31.420
and will reflect this part again

398
00:19:31.420 --> 00:19:33.270
Then at this moment

399
00:19:33.270 --> 00:19:36.080
if you look at the bottom of your desk

400
00:19:36.080 --> 00:19:39.380
even the parts that aren't lit by light will not be completely dark

401
00:19:39.380 --> 00:19:42.780
Right? It has light in darker colors

402
00:19:42.780 --> 00:19:44.929
We call this ambient

403
00:19:48.137 --> 00:19:51.387
When you're studying

404
00:19:51.387 --> 00:19:54.587
or trying to get good sleep

405
00:19:54.587 --> 00:19:57.759
you listen to ASMR

406
00:19:57.759 --> 00:20:01.359
A from that means ambient

407
00:20:01.359 --> 00:20:06.639
and A of ambient is the short for ambient

408
00:20:06.639 --> 00:20:07.797
Ambient

409
00:20:07.797 --> 00:20:09.331
It's an m here

410
00:20:12.097 --> 00:20:13.826
Ambient

411
00:20:13.826 --> 00:20:16.776
So with these three types of reflections

412
00:20:16.776 --> 00:20:18.876
three lights are combined

413
00:20:18.876 --> 00:20:21.026
and it shows the

414
00:20:21.026 --> 00:20:23.919
object like this

415
00:20:23.919 --> 00:20:27.019
Good?

416
00:20:27.019 --> 00:20:30.619
When we look at our screen

417
00:20:30.619 --> 00:20:33.480
if you go to lighting setting and to environment

418
00:20:33.480 --> 00:20:36.430
Here, ambient

419
00:20:36.430 --> 00:20:39.378
From there, source to skybox

420
00:20:39.378 --> 00:20:43.330
so the sky color reflected in the sky

421
00:20:43.330 --> 00:20:47.760
will be applied as the ambient light

422
00:20:47.760 --> 00:20:50.168
Hitting the object surface, the ground

423
00:20:50.168 --> 00:20:53.868
the part that affects the object

424
00:20:53.868 --> 00:20:56.353
We choose which one? Skybox

425
00:20:56.353 --> 00:20:59.403
Skybox, it says box here

426
00:20:59.403 --> 00:21:02.380
These days, there's also spheres

427
00:21:02.380 --> 00:21:03.919
instead of a box

428
00:21:03.919 --> 00:21:08.019
but here, you can just think of it as a cube since it's a box

429
00:21:08.019 --> 00:21:12.479
Then how is it?

430
00:21:12.479 --> 00:21:14.279
Since it's a cube, there are 6 sides

431
00:21:14.279 --> 00:21:16.979
We have combined the images here

432
00:21:16.979 --> 00:21:19.479
Then where do we put the user?

433
00:21:19.479 --> 00:21:21.960
In the middle of the object

434
00:21:21.960 --> 00:21:25.848
Inside this box, then it can make it looks like

435
00:21:25.848 --> 00:21:27.919
we're in this world

436
00:21:27.919 --> 00:21:29.719
This is the process

437
00:21:29.719 --> 00:21:32.419
of making these environment in 3D

438
00:21:32.419 --> 00:21:35.319
The effects you see in the sky here

439
00:21:35.319 --> 00:21:37.800
This is what it means

440
00:21:37.800 --> 00:21:40.550
The part shown in the sky

441
00:21:40.550 --> 00:21:44.050
We're taking that as the ambient color

442
00:21:44.050 --> 00:21:45.850
So if an object is here like this

443
00:21:45.850 --> 00:21:49.207
the ambient bounced off

444
00:21:49.207 --> 00:21:51.157
We're going to use that color

445
00:21:51.157 --> 00:21:53.119
That's how it is

446
00:21:53.119 --> 00:21:56.369
But in 2D, we don't use that ambient as is

447
00:21:56.369 --> 00:22:01.219
but just the color we designate

448
00:22:01.219 --> 00:22:03.007
Here, on source

449
00:22:03.007 --> 00:22:06.657
choose color instead of skybox

450
00:22:06.657 --> 00:22:09.157
and the ambient color was

451
00:22:09.157 --> 00:22:10.520
dark grey, a dark color?

452
00:22:10.520 --> 00:22:12.270
Blue and dark color, right?

453
00:22:12.270 --> 00:22:14.920
Let's put white here

454
00:22:14.920 --> 00:22:17.980
white is 1 in numbers

455
00:22:17.980 --> 00:22:25.329
1, so in RGB

456
00:22:25.329 --> 00:22:30.320
we can express each colors from 0 to 1

457
00:22:30.320 --> 00:22:32.320
RGB, every color

458
00:22:32.320 --> 00:22:34.919
can be expressed in the range from 0 to 1

459
00:22:34.919 --> 00:22:36.919
So if the color is red

460
00:22:36.919 --> 00:22:40.188
we can have 1, 0, 0

461
00:22:40.188 --> 00:22:43.914
Then if I multiply this

462
00:22:43.914 --> 00:22:45.464
to the ambient color I made

463
00:22:45.464 --> 00:22:49.119
For a color to show it's color itself

464
00:22:49.119 --> 00:22:50.919
just multiply the number 1

465
00:22:50.919 --> 00:22:53.759
Then it shows its color as is, right?

466
00:22:53.759 --> 00:22:57.059
If it's 0.2, it will be darker right?

467
00:22:57.059 --> 00:23:02.080
So if you put white which corresponds to the number 1

468
00:23:02.080 --> 00:23:05.338
it shows the original color as is

469
00:23:07.559 --> 00:23:09.509
Great

470
00:23:09.509 --> 00:23:12.109
Let's put this as that

471
00:23:12.109 --> 00:23:15.059
We have now done camera, directional light

472
00:23:15.059 --> 00:23:17.040
and light setting

473
00:23:17.040 --> 00:23:21.440
Now let's move onto resolution settings

474
00:23:21.440 --> 00:23:25.740
On 2D as well, we're going to make

475
00:23:25.740 --> 00:23:27.600
a vertical scroll instead of horizontal

476
00:23:27.600 --> 00:23:29.950
So we'll put it here

477
00:23:29.950 --> 00:23:31.700
and put the plane here

478
00:23:31.700 --> 00:23:34.300
and we'll make it look like the enemies coming from

479
00:23:34.300 --> 00:23:35.600
top to bottom

480
00:23:35.600 --> 00:23:39.279
So let's set the resolution

481
00:23:39.279 --> 00:23:40.779
Here, free aspect

482
00:23:40.779 --> 00:23:42.572
Free aspect on the game window

483
00:23:42.572 --> 00:23:43.720
You'll see that

484
00:23:43.720 --> 00:23:47.480
Open this dropdown

485
00:23:47.480 --> 00:23:50.630
Right? Then click on the add button

486
00:23:50.630 --> 00:23:53.040
I, here

487
00:23:53.040 --> 00:23:55.840
then on the label

488
00:23:55.840 --> 00:24:00.585
let's say shooting

489
00:24:00.585 --> 00:24:05.185
Then for type, fixed resolution

490
00:24:05.185 --> 00:24:08.935
640 for width

491
00:24:08.935 --> 00:24:11.448
and Y, Y is height

492
00:24:11.448 --> 00:24:14.279
We'll put 960

493
00:24:14.279 --> 00:24:15.214
Ok

494
00:24:19.320 --> 00:24:21.470
Done? Now on the very bottom

495
00:24:21.470 --> 00:24:24.730
it says shooting, right?

496
00:24:24.730 --> 00:24:27.980
So it was free aspect on the game window

497
00:24:27.980 --> 00:24:30.130
Now we can see the screen

498
00:24:30.130 --> 00:24:32.320
set as shooting

499
00:24:32.320 --> 00:24:36.170
Now let's make the player object

500
00:24:36.170 --> 00:24:37.920
and script

501
00:24:37.920 --> 00:24:41.160
and move onto the next project

502
00:24:41.160 --> 00:24:43.910
First, we'll make a player object

503
00:24:43.910 --> 00:24:47.320
Click on the plus button on hierarchy

504
00:24:47.320 --> 00:24:50.970
and create a cube on 3D object

505
00:24:50.970 --> 00:24:54.760
We're working on the prototype now

506
00:24:54.760 --> 00:24:57.922
Prototyping basically verifies the logic

507
00:24:57.922 --> 00:25:00.322
and see if

508
00:25:00.322 --> 00:25:02.640
our project is fine

509
00:25:02.640 --> 00:25:05.190
So we make a cube

510
00:25:05.190 --> 00:25:07.472
and when we move onto the alpha version

511
00:25:07.472 --> 00:25:09.222
we'll add all

512
00:25:09.222 --> 00:25:11.492
the planned content

513
00:25:11.492 --> 00:25:16.119
so we'll update them all to practically used data

514
00:25:16.119 --> 00:25:19.769
Create a cube on 3D object

515
00:25:19.769 --> 00:25:21.880
and there's a cube

516
00:25:21.880 --> 00:25:23.130
This game object's name

517
00:25:23.130 --> 00:25:26.744
will be player

518
00:25:26.744 --> 00:25:28.244
Let's put player

519
00:25:28.244 --> 00:25:32.144
Then for location, from transform

520
00:25:32.144 --> 00:25:37.239
right click and reset

521
00:25:37.239 --> 00:25:40.339
Then you can see that all values for

522
00:25:40.339 --> 00:25:44.399
position, rotation, and scale are set back to default

523
00:25:44.399 --> 00:25:46.949
They're all 0, 0, 0

524
00:25:46.949 --> 00:25:49.640
In the game world

525
00:25:49.640 --> 00:25:52.990
Where is the player in this world?

526
00:25:52.990 --> 00:25:55.640
The very center of the virtual space

527
00:25:55.640 --> 00:25:59.239
0, 0, 0

528
00:25:59.239 --> 00:26:01.489
But below there

529
00:26:01.489 --> 00:26:04.880
on the game window, where is the player?

530
00:26:04.880 --> 00:26:06.630
It's here

531
00:26:06.630 --> 00:26:10.259
Isn't it a little more to the bottom?

532
00:26:10.259 --> 00:26:12.109
Right? The reason is

533
00:26:12.109 --> 00:26:14.559
This is in fact 0, 0, 0

534
00:26:14.559 --> 00:26:16.623
but the screen coming down like this

535
00:26:16.623 --> 00:26:20.173
The game object that shows the screen

536
00:26:20.173 --> 00:26:22.640
is the main camera

537
00:26:22.640 --> 00:26:24.840
This camera is currently at

538
00:26:24.840 --> 00:26:27.390
If you look at this scene window

539
00:26:27.390 --> 00:26:29.079
it's a little above here

540
00:26:29.079 --> 00:26:31.579
And on the right, the inspector window

541
00:26:31.579 --> 00:26:35.600
what's the y for position?

542
00:26:35.600 --> 00:26:38.450
It's 1 right?

543
00:26:38.450 --> 00:26:43.000
We'll set that lower to 0

544
00:26:43.000 --> 00:26:47.000
and z at -10

545
00:26:47.000 --> 00:26:49.499
Great

546
00:26:49.499 --> 00:26:55.185
Then the camera is, compared to the player

547
00:26:55.185 --> 00:26:58.291
Let me see form the side

548
00:26:58.291 --> 00:27:00.480
like this

549
00:27:00.480 --> 00:27:04.851
z means front or back

550
00:27:04.851 --> 00:27:06.760
Then the object is here

551
00:27:06.760 --> 00:27:09.860
and the main camera is behind there

552
00:27:09.860 --> 00:27:12.359
You can actually go there to see

553
00:27:12.359 --> 00:27:15.059
Main camera is here

554
00:27:15.059 --> 00:27:17.709
filming like this

555
00:27:17.709 --> 00:27:20.509
So the scene the main camera is seeing

556
00:27:20.509 --> 00:27:23.200
is the back of the player

557
00:27:23.200 --> 00:27:24.450
like this

558
00:27:24.450 --> 00:27:26.350
These objects will show up

559
00:27:26.350 --> 00:27:27.760
like this

560
00:27:27.760 --> 00:27:29.730
Then the screen captured by the camera

561
00:27:29.730 --> 00:27:31.706
shows up on the game window

562
00:27:34.159 --> 00:27:34.935
Good?

563
00:27:38.000 --> 00:27:41.400
So the position of the main camera will be 0, 0

564
00:27:41.400 --> 00:27:44.854
and -10 for z

565
00:27:46.559 --> 00:27:50.809
Then we now have done the basic resolution settings

566
00:27:50.809 --> 00:27:54.159
and also the camera and player

567
00:27:54.159 --> 00:27:57.709
We set the camera's location values as well

568
00:27:57.709 --> 00:27:59.259
and same for

569
00:27:59.259 --> 00:28:02.320
the player's location

570
00:28:02.320 --> 00:28:06.720
Then to control the player

571
00:28:06.720 --> 00:28:09.719
let's make a script

572
00:28:09.719 --> 00:28:11.769
First, on the project window

573
00:28:11.769 --> 00:28:16.003
Click on plus from asset folder to create a folder

574
00:28:16.003 --> 00:28:18.393
and name it script

575
00:28:21.601 --> 00:28:24.501
Go in to the script folder

576
00:28:24.501 --> 00:28:28.251
and let's make a script

577
00:28:28.251 --> 00:28:30.440
to control the player

578
00:28:30.440 --> 00:28:33.440
First, we're going to make the player write movement codes

579
00:28:33.440 --> 00:28:39.200
So on script, click on plus and then C# script

580
00:28:39.200 --> 00:28:43.458
and name it PlayerMove

581
00:28:45.440 --> 00:28:47.390
Good?

582
00:28:47.390 --> 00:28:51.590
What you should remember here is

583
00:28:51.590 --> 00:28:55.470
Look at this name in PlayerMove

584
00:28:55.470 --> 00:28:59.120
You have to keep the capital letters exactly like this

585
00:28:59.120 --> 00:29:01.703
P in capital

586
00:29:01.703 --> 00:29:05.203
and M as well

587
00:29:05.203 --> 00:29:07.799
plus no spaces

588
00:29:07.799 --> 00:29:09.399
Do not put spaces

589
00:29:09.399 --> 00:29:11.299
PlayerMove

590
00:29:11.299 --> 00:29:13.549
When you select this

591
00:29:13.549 --> 00:29:16.559
on the inspector window on the right

592
00:29:16.559 --> 00:29:20.259
it says public class PlayerMove right?

593
00:29:20.259 --> 00:29:23.059
This part that says PlayerMove

594
00:29:23.059 --> 00:29:24.919
and here where it says PlayerMove

595
00:29:24.919 --> 00:29:28.675
These two must be identical

596
00:29:28.675 --> 00:29:32.425
Only when the file name and class name are the same

597
00:29:32.425 --> 00:29:33.880
there will be no errors

598
00:29:33.880 --> 00:29:35.630
'But I wrote it wrong'

599
00:29:35.630 --> 00:29:38.130
then we'll fix it later on

600
00:29:38.130 --> 00:29:39.780
Go to edit

601
00:29:39.780 --> 00:29:42.514
and this part on the edit window

602
00:29:42.514 --> 00:29:46.414
change it back to PlayerMove

603
00:29:46.414 --> 00:29:48.214
If that worked properly

604
00:29:48.214 --> 00:29:50.614
Drag and drop PlayerMove

605
00:29:50.614 --> 00:29:52.679
to this player

606
00:29:52.679 --> 00:29:54.979
Drag and drop

607
00:29:54.979 --> 00:29:58.879
and then the PlayerMove is in here

608
00:29:58.879 --> 00:30:01.979
You can put it in with drag and drop

609
00:30:01.979 --> 00:30:04.692
Another thing, if you did it wrong

610
00:30:04.692 --> 00:30:06.042
right click

611
00:30:06.042 --> 00:30:09.760
and click on remove component

612
00:30:09.760 --> 00:30:13.910
Get it? We just put the player part here

613
00:30:13.910 --> 00:30:17.695
but now select the player and on the right

614
00:30:17.695 --> 00:30:19.495
We'll put it on the right side

615
00:30:19.495 --> 00:30:21.879
Drag and drop like this

616
00:30:21.879 --> 00:30:27.068
then the PlayerMove is added again

617
00:30:27.068 --> 00:30:29.018
There are two ways, the other one is

618
00:30:29.018 --> 00:30:32.318
You can add with component here

619
00:30:32.318 --> 00:30:33.840
but we usually don't do that

620
00:30:33.840 --> 00:30:36.290
Usually

621
00:30:36.290 --> 00:30:39.140
we use drag and drop

622
00:30:39.140 --> 00:30:41.480
or you can use add component

623
00:30:41.480 --> 00:30:45.506
by clicking here

624
00:30:45.506 --> 00:30:48.639
Great, now we put PlayerMove

625
00:30:48.639 --> 00:30:52.796
in our player game object

626
00:30:53.322 --> 00:30:57.025
Understanding Unity C#'s basic structure

627
00:30:57.480 --> 00:31:00.430
Now we'll really get into

628
00:31:00.430 --> 00:31:04.000
writing the script that controls the player

629
00:31:04.000 --> 00:31:07.600
To do that, it would be nice to see

630
00:31:07.600 --> 00:31:10.519
how Unity C# works

631
00:31:10.519 --> 00:31:12.580
So in this unit, we'll learn

632
00:31:12.580 --> 00:31:14.936
the basic structure of Unity C#

633
00:31:17.361 --> 00:31:19.561
Although you already learned C#

634
00:31:19.561 --> 00:31:23.351
the basic grammar used in C3

635
00:31:23.351 --> 00:31:26.360
can also be used the same in Unity C#

636
00:31:26.360 --> 00:31:33.320
But in Unity C#

637
00:31:33.320 --> 00:31:36.320
there is using UnityEngine

638
00:31:36.320 --> 00:31:37.919
This is called a name space

639
00:31:37.919 --> 00:31:43.183
We need to add the name space we're going to use here

640
00:31:43.183 --> 00:31:46.383
You need to say that you'll use UnityEngine

641
00:31:46.383 --> 00:31:50.433
to use other classes or API functions

642
00:31:50.433 --> 00:31:53.400
provided by Unity

643
00:31:53.400 --> 00:31:57.050
And if you see here

644
00:31:57.050 --> 00:31:59.200
on public class, the class name is

645
00:31:59.200 --> 00:32:01.000
PlayerMove

646
00:32:01.000 --> 00:32:02.534
If this part is wrong

647
00:32:02.534 --> 00:32:04.434
then you can just fix that

648
00:32:04.434 --> 00:32:06.834
And then after that

649
00:32:06.834 --> 00:32:09.880
there's a super class, MonoBehaviour

650
00:32:09.880 --> 00:32:13.030
If you follow this

651
00:32:13.030 --> 00:32:15.476
in API

652
00:32:15.476 --> 00:32:19.476
above this is

653
00:32:19.476 --> 00:32:21.880
Behaviour

654
00:32:21.880 --> 00:32:23.980
There's Behaviour

655
00:32:23.980 --> 00:32:25.780
and above that is

656
00:32:25.780 --> 00:32:29.320
Component

657
00:32:29.320 --> 00:32:34.270
So what's the most super of MonoBehaviour? Component

658
00:32:34.270 --> 00:32:36.070
and PlayerMove which inherits MonoBehaviour

659
00:32:36.070 --> 00:32:39.543
is also a component

660
00:32:39.543 --> 00:32:43.343
So what are we writing?

661
00:32:43.343 --> 00:32:44.880
Component

662
00:32:44.880 --> 00:32:46.780
So to game object

663
00:32:46.780 --> 00:32:51.520
There is the game object that we're using, Player

664
00:32:51.520 --> 00:32:54.920
We could drag and drop

665
00:32:54.920 --> 00:32:57.600
PlayerMove

666
00:32:57.600 --> 00:33:01.250
Why is that? Because this is a component

667
00:33:01.250 --> 00:33:03.500
Everything that consists the game object Player

668
00:33:03.500 --> 00:33:04.880
are components

669
00:33:04.880 --> 00:33:07.330
The reason why it can stick

670
00:33:07.330 --> 00:33:11.559
is because PlayerMove is a component

671
00:33:11.559 --> 00:33:13.548
Get it? Next

672
00:33:15.919 --> 00:33:19.369
Under here we have a function called void start

673
00:33:19.369 --> 00:33:22.720
and void update

674
00:33:22.720 --> 00:33:25.620
These two functions

675
00:33:25.620 --> 00:33:27.749
are what we call life cycle

676
00:33:30.080 --> 00:33:32.430
Life cycle function

677
00:33:32.430 --> 00:33:35.364
Life cycle is

678
00:33:35.364 --> 00:33:36.244
from birth

679
00:33:39.065 --> 00:33:42.515
then do you die right away?

680
00:33:42.515 --> 00:33:44.600
You can't go straight to the tomb

681
00:33:44.600 --> 00:33:47.595
That's a little dangerous

682
00:33:47.595 --> 00:33:51.320
It's cruel, we must let them live a little

683
00:33:51.320 --> 00:33:59.399
So they live, and then what do they do?

684
00:33:59.399 --> 00:34:03.000
They die

685
00:34:03.000 --> 00:34:05.900
I said birth but

686
00:34:05.900 --> 00:34:08.199
these are all verbs, to be birthed

687
00:34:08.199 --> 00:34:10.617
To live, right?

688
00:34:10.617 --> 00:34:16.079
Functions do the job of verbs

689
00:34:16.079 --> 00:34:17.929
They act as verbs

690
00:34:17.929 --> 00:34:18.917
Here

691
00:34:22.440 --> 00:34:24.976
Let me just move this away

692
00:34:28.065 --> 00:34:30.965
Let's talk about life cycle

693
00:34:30.965 --> 00:34:34.129
briefly

694
00:34:34.129 --> 00:34:35.329
Being born

695
00:34:35.329 --> 00:34:39.958
Can you know when you are being born?

696
00:34:39.959 --> 00:34:42.409
Could you?

697
00:34:42.409 --> 00:34:46.279
Can we know when a baby is being born?

698
00:34:46.279 --> 00:34:49.479
We can, why?

699
00:34:49.479 --> 00:34:53.546
When you visit an ob-gyn they tell you

700
00:34:53.546 --> 00:34:56.480
when the baby will be born, the date and time

701
00:34:56.480 --> 00:34:58.780
So we can know when they are born

702
00:34:58.780 --> 00:35:00.680
It is influenced by our wills

703
00:35:00.680 --> 00:35:04.679
In fact they do give births on their wish day by surgery

704
00:35:04.679 --> 00:35:08.329
If we say that we'll do this at this time

705
00:35:08.329 --> 00:35:11.129
we can designate when this action will

706
00:35:11.129 --> 00:35:14.399
be done

707
00:35:14.399 --> 00:35:15.699
And what about living?

708
00:35:15.699 --> 00:35:18.249
You live, but then dying?

709
00:35:18.249 --> 00:35:20.440
Do you know when you die?

710
00:35:20.440 --> 00:35:21.890
This is tricky

711
00:35:21.890 --> 00:35:25.340
And let's say we're meeting in real life

712
00:35:25.340 --> 00:35:27.000
and we're giving each other high fives

713
00:35:27.000 --> 00:35:31.786
Does the hand look AI?

714
00:35:31.786 --> 00:35:34.160
I don't think I'm much different from an AI

715
00:35:34.160 --> 00:35:39.410
Let's say we do high fives

716
00:35:39.410 --> 00:35:42.359
We clap them

717
00:35:42.359 --> 00:35:45.909
Two hands will clap

718
00:35:45.909 --> 00:35:47.961
Clap it now? Or not now?

719
00:35:47.961 --> 00:35:50.600
Can you tell when?

720
00:35:50.600 --> 00:35:52.800
You can't

721
00:35:52.800 --> 00:35:55.850
These things, dying, clapping

722
00:35:55.850 --> 00:35:59.160
these are hard to know when they'll happen

723
00:35:59.160 --> 00:36:01.398
So we say that these exist as events

724
00:36:04.119 --> 00:36:11.559
So in Unity, the birth is called start

725
00:36:11.559 --> 00:36:14.209
and life cycle isn't just about being birthed

726
00:36:14.209 --> 00:36:17.160
but there will be a point in time when the baby is made

727
00:36:17.160 --> 00:36:18.960
Then when their limbs develop

728
00:36:18.960 --> 00:36:21.320
Life cycle is cut into very tiny pieces

729
00:36:21.320 --> 00:36:23.720
But overall, we can just say that

730
00:36:23.720 --> 00:36:26.359
it's birth, life and death

731
00:36:26.359 --> 00:36:29.059
Being born is start

732
00:36:29.059 --> 00:36:32.937
and this start here is what this is

733
00:36:32.937 --> 00:36:36.487
Living is update

734
00:36:36.487 --> 00:36:38.480
which is here

735
00:36:38.480 --> 00:36:41.180
and did we say we know when we die?

736
00:36:41.180 --> 00:36:42.279
We can't

737
00:36:42.279 --> 00:36:46.123
So in Unity, it shows the events

738
00:36:46.123 --> 00:36:48.519
that we cannot predict when

739
00:36:48.519 --> 00:36:53.619
So those have On in front of them

740
00:36:53.619 --> 00:36:56.880
They have the prefix On

741
00:36:56.880 --> 00:37:01.330
So dying is OnDestroy

742
00:37:01.330 --> 00:37:06.020
The function name is designated

743
00:37:06.020 --> 00:37:07.970
These life cycle functions

744
00:37:07.970 --> 00:37:09.970
are what Unity provides

745
00:37:09.970 --> 00:37:12.920
It makes start and update

746
00:37:12.920 --> 00:37:15.770
once a class is made

747
00:37:15.770 --> 00:37:19.398
How many times is something born?

748
00:37:19.398 --> 00:37:21.148
Not like Samsara

749
00:37:21.148 --> 00:37:22.706
It's just once right?

750
00:37:22.706 --> 00:37:26.559
Living will just be lived

751
00:37:26.559 --> 00:37:28.609
until just before death

752
00:37:28.609 --> 00:37:32.166
And how many times do you die? Once

753
00:37:32.166 --> 00:37:36.200
So we can know how many times these functions are called

754
00:37:36.200 --> 00:37:38.600
Being born is matched with start

755
00:37:38.600 --> 00:37:41.100
so called how many times? Once

756
00:37:41.100 --> 00:37:45.160
Update will be called all the time while living

757
00:37:45.160 --> 00:37:48.060
and OnDestroy, just once

758
00:37:48.060 --> 00:37:52.160
when it dies

759
00:37:52.160 --> 00:37:57.810
You could remember the timing

760
00:37:57.810 --> 00:38:00.640
and number of calls of the functions

761
00:38:00.640 --> 00:38:06.140
And then with this, the core of programming

762
00:38:06.140 --> 00:38:09.376
let's put Hello World at first

763
00:38:09.376 --> 00:38:11.276
Let's try

764
00:38:11.276 --> 00:38:13.626
The player already

765
00:38:13.626 --> 00:38:16.079
has the PlayerMove component

766
00:38:16.079 --> 00:38:17.978
Let's open this one

767
00:38:26.278 --> 00:38:30.178
When PlayerMove script is opened on Visual Studio

768
00:38:30.178 --> 00:38:33.037
we can put codes here

769
00:38:33.037 --> 00:38:39.212
print, Hello World

770
00:38:39.212 --> 00:38:41.535
Let's type that in

771
00:38:45.658 --> 00:38:47.135
Save it

772
00:38:50.095 --> 00:38:51.595
and come back to Unity

773
00:38:53.387 --> 00:38:56.887
Then Unity immediately reads the saved part

774
00:38:56.887 --> 00:38:58.559
and shows us

775
00:38:58.559 --> 00:39:01.159
and automatically it recognizes

776
00:39:01.159 --> 00:39:03.195
the changed parts and memorizes it

777
00:39:04.145 --> 00:39:06.159
Let's click the play button

778
00:39:08.599 --> 00:39:10.199
Then it says hello world

779
00:39:10.199 --> 00:39:11.549
Where is it?

780
00:39:11.549 --> 00:39:13.249
Can you see?

781
00:39:13.249 --> 00:39:14.799
Look at my mouse cursor

782
00:39:14.799 --> 00:39:17.599
Down here, can you see?

783
00:39:17.599 --> 00:39:20.249
It says hello world, tiny

784
00:39:20.249 --> 00:39:23.440
If it's hard to see

785
00:39:23.440 --> 00:39:26.090
try clicking on hello world

786
00:39:26.090 --> 00:39:30.022
then it shows a console window

787
00:39:30.022 --> 00:39:32.522
Here it says hello world

788
00:39:32.522 --> 00:39:34.903
and also has collapse

789
00:39:34.903 --> 00:39:36.853
If this is pressed

790
00:39:36.853 --> 00:39:39.799
it shows how many times this was called at the end

791
00:39:39.799 --> 00:39:41.849
It means that we called it once

792
00:39:41.849 --> 00:39:44.306
Why? Because there is only one start

793
00:39:46.513 --> 00:39:49.015
Where should we put this console window

794
00:39:49.015 --> 00:39:50.665
Let's put it next to

795
00:39:50.665 --> 00:39:52.799
the project window, dock it

796
00:39:52.799 --> 00:39:55.731
Then I'll turn it off

797
00:39:57.028 --> 00:39:59.400
When you run it again

798
00:39:59.400 --> 00:40:01.450
From now on, on the console window

799
00:40:01.450 --> 00:40:04.118
you can see this part being marked over and over again

800
00:40:06.694 --> 00:40:09.694
So that was hello world

801
00:40:09.694 --> 00:40:13.937
But as I told you, life cycle function

802
00:40:16.317 --> 00:40:18.217
is called once in start

803
00:40:18.217 --> 00:40:20.667
continuously updated

804
00:40:20.667 --> 00:40:23.719
and death also called once

805
00:40:23.719 --> 00:40:26.417
Let's see if this

806
00:40:26.417 --> 00:40:27.919
actually does happen

807
00:40:27.919 --> 00:40:30.819
If there is start, for this part

808
00:40:30.819 --> 00:40:33.679
I'll put it in update

809
00:40:33.679 --> 00:40:36.479
Then it was called once

810
00:40:36.479 --> 00:40:38.629
Now let's see how this part is called

811
00:40:38.629 --> 00:40:40.006
Press play

812
00:40:42.359 --> 00:40:46.159
As you can see, at the end of hello world

813
00:40:46.159 --> 00:40:48.679
the number is increasing

814
00:40:48.679 --> 00:40:53.599
Right? This part is consistently increasing

815
00:40:53.599 --> 00:40:55.749
It means that this is being called constantly

816
00:40:55.749 --> 00:40:59.031
Why? Because update is called continuously during life

817
00:41:01.159 --> 00:41:02.709
Then let's see how

818
00:41:02.709 --> 00:41:04.919
OnDestroy is called

819
00:41:04.919 --> 00:41:06.669
OnDestroy

820
00:41:06.669 --> 00:41:10.760
If you put void OnDestroy

821
00:41:10.760 --> 00:41:13.760
Not on update but on OnDestroy

822
00:41:13.760 --> 00:41:15.479
and let's test that

823
00:41:15.479 --> 00:41:18.829
Save it, you must save it

824
00:41:18.829 --> 00:41:21.945
Play it again

825
00:41:23.836 --> 00:41:27.486
It doesn't show hello world now

826
00:41:27.486 --> 00:41:28.986
Let me turn it off

827
00:41:28.986 --> 00:41:31.559
Then only then hello world appears

828
00:41:31.559 --> 00:41:34.559
You can see it being called once

829
00:41:34.559 --> 00:41:39.479
So start, update, OnDestroy functions

830
00:41:39.479 --> 00:41:42.279
so the life cycle function

831
00:41:42.279 --> 00:41:44.080
is called like this

832
00:41:44.080 --> 00:41:46.680
and on start, when we're doing some sort of setting

833
00:41:46.680 --> 00:41:47.719
or such works

834
00:41:47.719 --> 00:41:50.219
When setting the initial values, put it in start

835
00:41:50.219 --> 00:41:52.489
because it's called just once when being born

836
00:41:52.489 --> 00:41:55.039
and update is after it starts living

837
00:41:55.039 --> 00:41:57.289
Here, animations

838
00:41:57.289 --> 00:42:00.400
like characters moving or receiving user input

839
00:42:00.400 --> 00:42:03.250
These are all done where? Update

840
00:42:03.250 --> 00:42:05.919
because it must perform it continuously while living

841
00:42:05.919 --> 00:42:09.019
While the game is running, it's all update

842
00:42:09.019 --> 00:42:12.669
And when we end it, returning resources

843
00:42:12.669 --> 00:42:14.799
or other such works are required sometimes

844
00:42:14.799 --> 00:42:17.879
Then we can do that on OnDestroy

845
00:42:20.200 --> 00:42:24.400
Then what structure does unity have

846
00:42:24.400 --> 00:42:26.750
making it possible for Unity editor

847
00:42:26.750 --> 00:42:28.719
to acknowledge and run it

848
00:42:28.719 --> 00:42:31.794
right away?

849
00:42:31.794 --> 00:42:36.799
C# files' extensions are .cs

850
00:42:36.799 --> 00:42:39.799
What makes C# files aren't just Visual Studio

851
00:42:39.799 --> 00:42:42.239
but other IDE tools as well

852
00:42:42.239 --> 00:42:44.539
There is also Visual Studio code now

853
00:42:44.539 --> 00:42:46.639
We are using Visual Studio

854
00:42:46.639 --> 00:42:47.960
community

855
00:42:47.960 --> 00:42:51.360
We can make C# flils with just a memo pad

856
00:42:51.360 --> 00:42:53.599
So C# file is made

857
00:42:53.599 --> 00:42:55.949
and once we do that

858
00:42:55.949 --> 00:42:59.399
How does Unity Engine recognize this?

859
00:42:59.399 --> 00:43:03.000
The C# file was edited on Unity

860
00:43:03.000 --> 00:43:05.800
then the editor is monitoring it

861
00:43:05.800 --> 00:43:08.250
Oh, C# file was edited

862
00:43:08.250 --> 00:43:11.080
Then it loads C# file

863
00:43:11.080 --> 00:43:14.430
and it's not just using the C# file

864
00:43:14.430 --> 00:43:18.730
Between here, the C# file we made

865
00:43:18.730 --> 00:43:21.679
is human language

866
00:43:21.679 --> 00:43:23.629
How is it?

867
00:43:23.629 --> 00:43:25.779
It's programming language

868
00:43:25.779 --> 00:43:29.679
It's a human language just to communicate with computers

869
00:43:29.679 --> 00:43:33.479
Then C# file made with human language

870
00:43:33.479 --> 00:43:35.640
must be performed where?

871
00:43:35.640 --> 00:43:39.890
On a machine, a computer

872
00:43:39.890 --> 00:43:43.690
So the language humans made

873
00:43:43.690 --> 00:43:47.520
the language we made in Korea

874
00:43:47.520 --> 00:43:50.365
must be translated to communicate

875
00:43:50.365 --> 00:43:54.193
with an American person

876
00:43:54.193 --> 00:43:58.366
Just like that, C# file's language

877
00:43:58.366 --> 00:44:00.799
must be translated into machine code

878
00:44:00.799 --> 00:44:03.042
What we call this translation is

879
00:44:03.042 --> 00:44:05.960
compiling

880
00:44:05.960 --> 00:44:07.660
Compile

881
00:44:07.660 --> 00:44:11.660
So when we bring a C# to Unity

882
00:44:11.660 --> 00:44:14.460
Unity loads that file

883
00:44:14.460 --> 00:44:16.799
and compiles it

884
00:44:16.799 --> 00:44:20.035
But uniquely, C

885
00:44:20.035 --> 00:44:23.635
or C++ is translated into machine code right away

886
00:44:23.635 --> 00:44:27.110
But it doesn't for C#

887
00:44:27.110 --> 00:44:30.060
and this is to secure the flexibility

888
00:44:30.060 --> 00:44:32.760
for many platforms

889
00:44:32.760 --> 00:44:36.160
We don't have just one OS

890
00:44:36.160 --> 00:44:39.400
When we put an app on OS

891
00:44:39.400 --> 00:44:42.550
then it changes into Window OS, Mac OS

892
00:44:42.550 --> 00:44:45.200
or iOS

893
00:44:45.200 --> 00:44:47.600
So according to the OS

894
00:44:47.600 --> 00:44:49.960
the app can only be very dependent

895
00:44:49.960 --> 00:44:51.860
Processing certain data

896
00:44:51.860 --> 00:44:55.310
is also different for these languages and C#

897
00:44:55.310 --> 00:44:59.080
So if an app becomes dependent on the OS

898
00:44:59.080 --> 00:45:00.748
when it's trying to correspond to other OS

899
00:45:00.748 --> 00:45:02.816
the application we made

900
00:45:02.816 --> 00:45:06.616
for iOS, iPhone, android phones

901
00:45:06.616 --> 00:45:09.799
Window, or steam

902
00:45:09.799 --> 00:45:12.599
it might be hard to correspond it to them

903
00:45:12.599 --> 00:45:17.359
Why? because each OS are different

904
00:45:17.359 --> 00:45:19.759
Then to correspond multi platform

905
00:45:19.759 --> 00:45:22.209
to one source code

906
00:45:22.209 --> 00:45:24.559
what should we do?

907
00:45:24.559 --> 00:45:27.309
If we translate it right away to machine code

908
00:45:27.309 --> 00:45:29.259
it becomes difficult

909
00:45:29.259 --> 00:45:34.320
so C# puts something in between here

910
00:45:34.320 --> 00:45:37.020
like this

911
00:45:37.020 --> 00:45:39.528
This is .NET

912
00:45:41.359 --> 00:45:42.218
.NET

913
00:45:44.520 --> 00:45:46.120
It's often called runtime

914
00:45:46.120 --> 00:45:47.702
So this part

915
00:45:47.702 --> 00:45:50.170
.NET

916
00:45:50.170 --> 00:45:53.000
the role of .NET is

917
00:45:53.000 --> 00:45:55.650
when we make an app, instead of going straight to the OS

918
00:45:55.650 --> 00:45:57.550
it goes through .NET first

919
00:45:57.550 --> 00:46:00.599
and then when running on the OS

920
00:46:00.599 --> 00:46:02.549
it determines for the OS

921
00:46:02.549 --> 00:46:05.399
and compile then

922
00:46:05.399 --> 00:46:07.649
Then does it not compile before that?

923
00:46:07.649 --> 00:46:09.269
It does, in what way?

924
00:46:09.269 --> 00:46:12.989
Here, you can see Make DLL

925
00:46:12.989 --> 00:46:16.640
These C# files

926
00:46:16.640 --> 00:46:18.990
are called Intermediate Language

927
00:46:18.990 --> 00:46:21.240
It makes this an interlanguage

928
00:46:21.240 --> 00:46:24.359
That is DLL

929
00:46:24.359 --> 00:46:26.859
In C#, we say assembly

930
00:46:26.859 --> 00:46:28.109
Make all these

931
00:46:28.109 --> 00:46:31.400
and the extension comes out as a DLL file

932
00:46:31.400 --> 00:46:35.700
C# is turned into a DLL file

933
00:46:35.700 --> 00:46:39.719
Then these are Intermediate Language

934
00:46:39.719 --> 00:46:42.569
Instead of going straight to the OS

935
00:46:42.569 --> 00:46:44.431
it goes through something in the middle

936
00:46:44.431 --> 00:46:46.799
making it an Intermediate Language beforehand

937
00:46:46.799 --> 00:46:51.249
After that, for Window OS or iOS

938
00:46:51.249 --> 00:46:56.280
Only then it compiles to machine codes

939
00:46:56.280 --> 00:46:59.130
suitable for the OS

940
00:46:59.130 --> 00:47:01.137
So compile at that moment

941
00:47:03.315 --> 00:47:04.716
when? That moment

942
00:47:07.560 --> 00:47:09.460
So it's called just in time

943
00:47:09.460 --> 00:47:13.359
and in short, JIT compile

944
00:47:13.359 --> 00:47:16.166
This leads to the final

945
00:47:16.166 --> 00:47:17.116
machine codes

946
00:47:17.116 --> 00:47:21.520
So C and C++

947
00:47:21.520 --> 00:47:24.570
are compiled directly to OS

948
00:47:24.570 --> 00:47:27.108
into what fits the OS

949
00:47:27.108 --> 00:47:28.640
so it can be quicker

950
00:47:28.640 --> 00:47:31.290
But what about JAVA or C#?

951
00:47:31.290 --> 00:47:33.690
It goes through something

952
00:47:33.690 --> 00:47:37.040
So compared to C and C++

953
00:47:37.040 --> 00:47:40.847
it might be a little slower

954
00:47:40.847 --> 00:47:43.297
These days though, thanks to hardware and compiler capacity

955
00:47:43.297 --> 00:47:46.237
this is also getting shorter

956
00:47:46.237 --> 00:47:49.187
Unity has this

957
00:47:49.187 --> 00:47:52.737
It's using C#, so this part is also included

958
00:47:52.737 --> 00:47:55.800
which is why what we're working on on Unity

959
00:47:55.800 --> 00:47:59.450
can be used in android, iOS, Console

960
00:47:59.450 --> 00:48:02.650
and even in web browsers

961
00:48:02.650 --> 00:48:04.667
We're making use of the pros of this part

962
00:48:07.244 --> 00:48:10.294
Then you'll be able to understand

963
00:48:10.294 --> 00:48:13.040
the basic structure of Unity C#

964
00:48:13.040 --> 00:48:16.340
Let's see what we've learned in this topic

965
00:48:16.340 --> 00:48:20.160
First, we created a project and set the environment

966
00:48:20.160 --> 00:48:22.846
Then we placed camera and lighting

967
00:48:24.816 --> 00:48:26.916
After that, we created player object

968
00:48:26.916 --> 00:48:29.116
and added script

969
00:48:29.116 --> 00:48:31.016
Lastly on Unity Engine

970
00:48:31.016 --> 00:48:35.560
we saw how C# works and it's components

971
00:48:35.560 --> 00:48:37.035
Good job

972
00:48:37.736 --> 00:48:39.359
Project production and environment setting
Setting shooting game project

973
00:48:39.359 --> 00:48:41.087
Run Unity Hub and create ShootingGame  project
When ShootingGame project is made, Unity is ran

974
00:48:41.087 --> 00:48:42.696
Setting up production environment
Change the Scene view to Iso mode and click Gizmos to set the screen to be a back view

975
00:48:42.696 --> 00:48:43.728
Camera and lighting placement, player object and script creation
Camera Settings
Camera components are attached to the camera to act as a camera

976
00:48:43.728 --> 00:48:44.801
Set main camera's projetion as orthographics
Lighting setting
Select direction light from hierarchy window and deactivate light component

977
00:48:44.801 --> 00:48:45.853
Open [winow-rendering-lighting settings] window and deactivate auto generate option at the very bottom of lighting window's scene tab

978
00:48:45.853 --> 00:48:46.849
Change Environment lighting source to color and designate ambient color to white on environemnt

979
00:48:46.849 --> 00:48:47.762
On game window, open resolution dropdown menu and blick + button and set resolution x, y value to 640x960

980
00:48:47.762 --> 00:48:49.012
Player object and script setting
Click on + button from hierarchy window to create [3D Object - Cube] and name it Player

981
00:48:49.012 --> 00:48:50.262
Click on + buton from project window to select folder and name it Scripts

982
00:48:50.262 --> 00:48:51.512
Click on + button from script folder to make C# script and name it PlayerMove

983
00:48:51.512 --> 00:48:52.741
Drag PlayerMovve script and drop on hierarchy's player object

984
00:48:52.741 --> 00:48:53.991
Understanding basic structure of Unity C#
Double click on PlayerMove.cs from Project window to open editor

985
00:48:53.991 --> 00:48:55.191
Input print("HeloWorld") to PlayerMove.cs' start function and run on Unity

986
00:48:55.191 --> 00:48:56.441
Life cycle function
Unity object's life cycle is Start as birth, Spdate and life, and Ondestory as death

987
00:48:56.441 --> 00:48:57.681
C# script's run structure
Change in CS file let's Unity Engine compile the file
Usually compiled to Assembly-CSharp.dll