WEBVTT

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Hello, this is Younghoon Lee

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Today we will be working on collisions and the game over function

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In this chapter, we wil learn about how to set the channel for collisions

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And how to process at C++ using this method

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And we will also learn about how to

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Make the collision between Player and enemy into the game over state

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Processing Collisions

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Unreal Engine has Physics, a physics engine

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With which we can process collisions

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In order to process collisions

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We need to start with some prerequesitory things

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First is the concept of channels

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Go to Edit

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Project Settings

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And at Collision, we see these

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Object and Trace channels

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Object Channels is where

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They process physical collisions

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While Trace is where they process

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Things such as the gaze direction

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Today, we will be using Object Channels

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In processing collisions

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The first objects that appear

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We have Player, Bullet and Enemy

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So using that

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Let's reconfigure this

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So first is Player

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And it says Default Response

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Which asks for default settings for

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The Player channel with existing channels

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Let's say Overlap here

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And we have Bullet

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Bullet

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We also need Overlap here

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And finally, let's say Enemy here

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And now we need detailed setups for this

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Let's start with Enemy

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Here, what we will try is

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Let me explain more about this later

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Let's visualize what we are going to do

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So we have Enemy

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And Player and Bullet

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So Enemy checks for Player

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And Bullet checks for Enemy

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That's the collision check that happens

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So first, let's start with Enemy

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At Enemy, this is what it looks like

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We first need to se this Box Component

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Over here, like so

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It says OverlapAllDynamic

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Let's put it to Custom

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So here, what corresponds to Collision Channel

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What corresponds to Object Channel is Object Type

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So open it here, and it says this here

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Let's start with Enemy

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And then it says Collision Enabled

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And there are two in general

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It has Query and Physics

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Query is what overlaps, it simple detects

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So it won't push things around

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It just detects the overlap

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And Physics is something physical

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It collides into something and pushes it away

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Let's check for the two here

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Let's set it up so that it detects both Query and Physics

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And for Enemy, like so

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The actual collision will happen

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Between Enemy with Player and Bullet

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Here, I won't use Block and only use Overlap

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Let me explain a bit more about this situation

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As you just saw, here's the diagram

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When we say there are two objects like so

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We can set for their collision settings

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For example, Object B

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With Object A, it will be Ignore

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So let's write this out here

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When we have A and B

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At A, it will Ignore B

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And then at B, it will Block A

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Let's say that this is the setup

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Then what happens in the end is

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Ignore is what happens

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And here at the diagram

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Here, let's take it as it is

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A is Ignore, and B is Block

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But the result for that is Ignore

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That's how Ignore and Block work

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So Ignore literally ignores

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So Overlap isn't a physical collision

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While this is an actual physical collision

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And the priority goes like this

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Ignore is at the top

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So if either of the two is Ignore, it becomes Ignore

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And if it is Overlap and Block

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It will end up being Overlap

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So we can set all these here

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And let's set it up for Player as well

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Select Box Component

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Come over here for customization

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Let's say Ignore for all

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And then for our Player

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Let's set it up like this

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Player will only Ovlerap with Enemy

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That's how we can set this up

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And we have Bullet as well

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For Bullet, select Box Component

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And customize Bullet as well

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And then, Ignore here and

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For Bullet, let's say it only Overlaps with Enemy

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Then Enemy overlaps with Bullet

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And Bullet overlaps with Enemy

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So it is Overlap for both

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That's how we set this up

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Let's save everything here as well

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And then

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Let's try colliding into them

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And we can't really see if it is happening

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So in order to process this

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Let's come over to Enemy and do that actuall collision

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We can first check for it at Blueprint

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So at Enemy

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We had this ActorBeginOverlap here

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This detects any collision between actors

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And it has no detailed content to it

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And we have a scenario we want

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Let me visualize it here

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For example

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Let's say there is some boss, like a golem

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And let's say we want to shoot here

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And smash its arm

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Or let's say we want to shoot its head

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Or some parts and destroy it

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For this to be implemented

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It is hard to realize this

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Only using our ActorBeginOverlap here

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It is very hard to detect where

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The 'where' of the hit

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We can't really use coordinate calculation for this

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So instead, we could

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At this component

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This collider

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Get to the bottom of the collider

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And here is a function that detects

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Whether that collider has been collided

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So using this

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We can use collision detection for each collider

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So at C++

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We can demonstrate for these two

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So at its code

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Let's go to Header first

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Starting with Enemy

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Let's say this below Tick

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Virtual Void NotifyBeginOverlap

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There's that

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And Actor's OtherActor, like so

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We have a parameter like so as well

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This function is same as the node we saw

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At Blueprint in serving the same role

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So let's implement this

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And then over at this side

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Let's print the log

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At Unreal, to print log

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We can use the macro 'UE_LOG()'

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So write 'LogTemp'

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And then 'Warning'

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And this Warning is printed in yellow

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Which is very visible, so let's say Warning

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Let's say Text

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And let's just print something for the sake of it

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Let's print this text over here

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So that's how we code it

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Over at Unreal, let's compile

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So run it and collide into it

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And let's see if it prints the log

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So here we see how this log is being printed

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Let's take a look at it with this fixed

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Again

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So, when we collide into it

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We see how it prints the log

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So, we could use this function but

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As I mentioned before

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Let's try collision per parts

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So let's make this log a comment

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And again

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Over here at Header again

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The component that processes collision here is

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Our Box Component

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So whenever Box Component experiences any physical collision

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We can create a function so that this gets recorded

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And it will let us know in case of any collision

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That's how we can process collisions

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So back to our Enemy actor's BeginPlay

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Its BeginPlay is pretty long

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Let's write it out at the bottom

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Let's start at the very bottom of our BeginPlay

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At Box Component

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Whenever there is a collision

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We'd like to know, right?

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So let's say, BoxComp

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And then, what we want here is

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Looking at the list of its property and function

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We have a function called OnComponentBeginOverLap

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Over here

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So that's how it looks like

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In fact, it's less of a function

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Than it is a delegate

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So a delegate looks like this, when we follow it along like so

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So it says FComponentEndOverLapSignature

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And if we enter there

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It says Declare Dynamic Multicast

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So it says it is a delegate

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It says it is a delegate with six parameters

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So we can shape this into a function

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And add this function

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So it says six, over here

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Parameter, its variable name

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This is a pair for each

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So let's count it using the commas

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One, two, three, four, five, six, and that means it's twelve

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So it ends over here

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So let's copy all the way from here to there

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And then, let's come back over here

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Back at Header

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We will create a function we'll add

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Let's add it right at the bottom

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And the function we'd like to use added as delegate

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Needs a macro called UFUNCTION

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So write out UFUNCTION over here

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And for this void

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This is BeginOverlap of our Box Component

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So let's write out onBoxCompBeginOverlap

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And the one we brought in,

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Let's paste the one we copied

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And it should end with a semicolon

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And then here

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We can delete the comma to the right of our data type

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So that's how we can shape it

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Let's implement it, we can work with the implementation like so

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And let's see if it prints out well

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Let's also print this part as a log

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Like so, and

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Now we need to add this function

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In order to add the function

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Let's add it at BeginPlay

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The one we didn't finish, right?

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We will add it over here

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So add a dot here

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And wirte out 'addDynamic'

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And then here, the parenthesis

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This, and ampersand, and the address to that function

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That's how we add it like so

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Then, whenever there is a collision

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It will call this function

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So, after we've written out everything

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Let's compile first

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It may or may not work

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If it doesn't work, you can simply restart

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Restart, edit it once again

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And let's see, we know that the event is alright

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And then, remember the one we wrote out here?

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Starting with Enemy

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We set things up at Box Component like so

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Let's try writing this part out at our code

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So over at Enemy, let's go to our Enemy constructor

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So we'll be writing over here

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And what we want to do here is

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First, for Mesh Component

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We'd like to disable the collider

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Meaning, we'd like to make the collider 'off'

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And at Box Component

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We'd like to add

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The collision settings

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Let's work on each

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Let's try our MeshComp

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At set Collision, we have things like Enable

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At Set Collision, we have a few like so

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And here, Enable is for on/off

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Over here at the top, we have No Collision

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Meaning, its collision won't be processed

280
00:15:30.580 --> 00:15:33.799
We can set it up separately like so

281
00:15:33.799 --> 00:15:36.449
And let's look at our Box Component

282
00:15:37.350 --> 00:15:40.550
Let's work on one by one, over here

283
00:15:40.550 --> 00:15:43.130
We have Generate Overlap Event

284
00:15:43.131 --> 00:15:45.081
This should be enabled

285
00:15:45.082 --> 00:15:47.882
In order to detect collision

286
00:15:47.980 --> 00:15:49.940
So this needs to be on

287
00:15:49.941 --> 00:15:54.341
So let's call the function SetGenerateOverLapEvents

288
00:15:54.640 --> 00:15:58.349
SetGenerateOverlapEvents

289
00:15:58.350 --> 00:16:02.300
And first let's set this as 'true'

290
00:16:03.160 --> 00:16:06.870
And then we'll set up our collision

291
00:16:08.171 --> 00:16:11.871
Let's do the same thing as we've done for Set Collision

292
00:16:11.871 --> 00:16:13.720
Enabled

293
00:16:13.721 --> 00:16:16.821
And let's enable both Query and Physics

294
00:16:16.821 --> 00:16:19.229
In fact, we only need Query

295
00:16:19.230 --> 00:16:21.330
But let's just try enabling both

296
00:16:21.331 --> 00:16:23.031
And then

297
00:16:23.279 --> 00:16:26.910
We need to set up its collision channel

298
00:16:26.911 --> 00:16:29.561
Over here, it is set up as Enemy

299
00:16:29.860 --> 00:16:33.819
So let's try setting it up over here

300
00:16:35.070 --> 00:16:39.320
We can add SetCollisionObjectType here

301
00:16:39.321 --> 00:16:41.621
But over here, what it says is

302
00:16:41.621 --> 00:16:44.349
Its name is looking like this

303
00:16:45.449 --> 00:16:48.111
So we need to look it up once, right?

304
00:16:48.111 --> 00:16:50.511
Back to our Project

305
00:16:51.509 --> 00:16:53.690
Let's look at the folders

306
00:16:56.100 --> 00:16:58.280
Over here, we have a folder called Config

307
00:16:58.281 --> 00:16:59.281
This is a very important folder

308
00:16:59.282 --> 00:17:02.182
Config, Content, and then Source

309
00:17:02.183 --> 00:17:04.183
These three folders are very important

310
00:17:04.183 --> 00:17:09.500
At Configt, we have the DeafultEngine.ini setup file

311
00:17:09.501 --> 00:17:13.251
Ini file is for Initial file

312
00:17:13.301 --> 00:17:16.840
So let's try and edit this

313
00:17:17.391 --> 00:17:19.741
And try scrolling to the bottom

314
00:17:19.741 --> 00:17:21.770
And we see Player here

315
00:17:21.770 --> 00:17:22.571
Player, Bullet, Enemy

316
00:17:22.571 --> 00:17:25.671
These things we set up are all in here

317
00:17:25.671 --> 00:17:29.549
But the name that should actually be used is

318
00:17:29.550 --> 00:17:31.100
The channel names we have over here

319
00:17:31.201 --> 00:17:32.901
So this channel name says

320
00:17:32.901 --> 00:17:36.509
ECC_GameTraceChannel1

321
00:17:36.510 --> 00:17:38.110
So we have 1, 2 and 3

322
00:17:38.111 --> 00:17:40.061
In the order of Player, Bullet and Enemy

323
00:17:40.061 --> 00:17:42.499
So we should remember that

324
00:17:43.000 --> 00:17:46.000
And let's write that over here

325
00:17:46.000 --> 00:17:49.570
So 1 is Player, this is 3

326
00:17:49.571 --> 00:17:51.571
Enemy was 3

327
00:17:51.572 --> 00:17:53.622
So we write it up like so

328
00:17:53.720 --> 00:17:55.979
And then, what we did here is

329
00:17:55.980 --> 00:17:58.130
Overall

330
00:17:58.760 --> 00:18:00.930
Ignore for everything, and then

331
00:18:00.931 --> 00:18:02.481
Only the ones I want to enable

332
00:18:02.482 --> 00:18:05.932
Become Overlap like so here

333
00:18:05.932 --> 00:18:08.279
That's how we process it

334
00:18:08.330 --> 00:18:10.630
And we could do it like the following

335
00:18:10.630 --> 00:18:18.030
At Mesh Component, we have

336
00:18:18.481 --> 00:18:21.781
SetCollisionResponseToAllChannels

337
00:18:21.781 --> 00:18:25.579
It means all channels are Ignored at once

338
00:18:25.580 --> 00:18:28.780
And now we can set each channel separately

339
00:18:28.780 --> 00:18:32.490
At SetCollisionResponse

340
00:18:32.491 --> 00:18:34.441
We see the individual channel here

341
00:18:34.679 --> 00:18:36.450
We can set it up using this

342
00:18:36.451 --> 00:18:39.801
So here, we have the channel

343
00:18:39.802 --> 00:18:41.752
And then the Response Time

344
00:18:42.152 --> 00:18:43.609
So it starts with an 'E'

345
00:18:43.610 --> 00:18:45.410
Meaning, it is Enum type

346
00:18:45.511 --> 00:18:47.159
So these are Enum type over here

347
00:18:47.159 --> 00:18:50.810
So we know that all Enum types start with 'E'

348
00:18:51.010 --> 00:18:54.210
Anyhow, we need to write it up like this

349
00:18:56.360 --> 00:18:58.870
1 and 2 are to collide

350
00:18:58.871 --> 00:19:00.671
That's what we want to say, and then

351
00:19:00.671 --> 00:19:03.741
Overlap will happen at the second argument

352
00:19:03.741 --> 00:19:05.541
That's what we can set up like so

353
00:19:05.640 --> 00:19:07.350
Let's make another one

354
00:19:07.351 --> 00:19:09.951
And it can Overlap with 2 as well

355
00:19:10.252 --> 00:19:13.002
That's how we can set up for its collision

356
00:19:13.102 --> 00:19:16.230
In a way, we have this concept and another for setting up the whole

357
00:19:16.231 --> 00:19:17.931
That's what we have here

358
00:19:18.380 --> 00:19:21.760
But this will give us a lot of lines for the code

359
00:19:21.761 --> 00:19:24.561
So in order to abbreviate this a little

360
00:19:24.799 --> 00:19:28.009
Because if we repeat everything like so

361
00:19:28.010 --> 00:19:30.960
The code becomes too long and there may be typos

362
00:19:31.159 --> 00:19:35.810
So at Unreal Engine, in order to abbreviate all this

363
00:19:37.069 --> 00:19:39.490
They provide something called Preset

364
00:19:39.691 --> 00:19:43.791
So let's create these three into presets and add them here

365
00:19:43.840 --> 00:19:47.680
So go to New, and let's say Player

366
00:19:50.080 --> 00:19:53.590
And let's set it as Query and Physics

367
00:19:53.591 --> 00:19:56.691
And Object Type, Player

368
00:19:56.890 --> 00:19:59.280
And Ignore for everything

369
00:19:59.281 --> 00:20:03.331
And say it only Overlaps with Enemy

370
00:20:03.331 --> 00:20:06.380
And let's do the same for all others

371
00:20:08.960 --> 00:20:12.430
For Bullet, same thing

372
00:20:12.681 --> 00:20:15.621
Ignore everything, but only Overlap with Enemy

373
00:20:16.421 --> 00:20:19.000
And finally with Enemy

374
00:20:22.100 --> 00:20:24.300
Let's also go for Query and Physics

375
00:20:24.300 --> 00:20:27.000
Set its type as Enemy

376
00:20:27.000 --> 00:20:28.500
And Ignore

377
00:20:28.501 --> 00:20:30.901
And for Bullet and Player

378
00:20:30.902 --> 00:20:33.252
Let's have them Overlap

379
00:20:34.000 --> 00:20:36.000
So we are done with creating the presets

380
00:20:36.000 --> 00:20:39.850
And all we need is to assign the presets here

381
00:20:39.850 --> 00:20:41.800
Let me demonstrate here

382
00:20:41.800 --> 00:20:45.750
What we had to do was customize each and everything

383
00:20:45.750 --> 00:20:48.000
But now, open it up here and see

384
00:20:48.100 --> 00:20:50.450
Let's compile first beforehand

385
00:20:50.700 --> 00:20:54.750
So here we have all presets for Player, Bullet and Enemy

386
00:20:54.750 --> 00:20:58.150
So since this is Enemy here

387
00:20:58.151 --> 00:20:59.951
Set it up as Enemy

388
00:20:59.951 --> 00:21:02.650
Then it automatically sets it up

389
00:21:02.651 --> 00:21:05.301
So that it fits the type for Enemy

390
00:21:05.301 --> 00:21:10.000
So let's actually try it at the code

391
00:21:10.000 --> 00:21:12.000
So after having done this

392
00:21:12.500 --> 00:21:16.000
Let's close Unreal and restart

393
00:21:16.000 --> 00:21:20.250
So let's make this a comment

394
00:21:21.500 --> 00:21:26.000
When you make something in to a comment, select the part

395
00:21:26.000 --> 00:21:29.000
And use Ctrl K+C, K+U

396
00:21:29.600 --> 00:21:31.400
It's over here

397
00:21:31.400 --> 00:21:35.050
And then our Mesh Component

398
00:21:36.250 --> 00:21:38.400
Let's see the list that has it

399
00:21:38.401 --> 00:21:41.551
Here, SetCollision

400
00:21:42.200 --> 00:21:45.000
It says 'ProfileName'

401
00:21:45.000 --> 00:21:46.950
Preset is this profile

402
00:21:46.950 --> 00:21:48.300
So we need to add this

403
00:21:48.300 --> 00:21:50.500
Here, say Text

404
00:21:50.500 --> 00:21:53.200
And we can use the name as it is

405
00:21:53.200 --> 00:21:57.000
Pay close attention to case sensitivity

406
00:21:57.000 --> 00:21:59.350
It's 'Enemy' here

407
00:22:00.350 --> 00:22:02.550
So write it out like so

408
00:22:03.100 --> 00:22:06.950
Same thing, copy everything here

409
00:22:08.450 --> 00:22:11.000
And let's do the same for Bullet and Player

410
00:22:11.000 --> 00:22:14.000
Let's lok at the constructor for Bullet, paste everything

411
00:22:14.000 --> 00:22:17.250
Bullet over here

412
00:22:17.250 --> 00:22:19.000
We can write it out like so

413
00:22:19.000 --> 00:22:21.000
And then copy it as it is

414
00:22:21.700 --> 00:22:25.350
Back to Player, at its constructor

415
00:22:25.350 --> 00:22:28.050
Let's write it out

416
00:22:28.050 --> 00:22:30.400
Here, Player

417
00:22:31.450 --> 00:22:34.200
And let's compile

418
00:22:34.200 --> 00:22:38.100
You can do Ctrl B to compile

419
00:22:39.550 --> 00:22:44.000
And you can do Ctrl F5 to restart it

420
00:22:44.000 --> 00:22:46.000
So you could click on this or

421
00:22:46.001 --> 00:22:48.751
Click on thie button at Debug

422
00:22:49.700 --> 00:22:51.550
So we have it here

423
00:22:51.550 --> 00:22:53.450
Let's check each here

424
00:22:53.450 --> 00:22:55.900
At BulletActor

425
00:22:58.750 --> 00:23:01.000
Let's go back here

426
00:23:01.100 --> 00:23:04.000
Oh, it doesn't support this here

427
00:23:04.850 --> 00:23:07.000
Let's do it manually then

428
00:23:07.000 --> 00:23:08.000
Bullet

429
00:23:08.900 --> 00:23:11.200
Enemy

430
00:23:18.800 --> 00:23:21.000
They are not set up right

431
00:23:21.400 --> 00:23:24.000
Right, this isn't set up correctly

432
00:23:24.100 --> 00:23:26.000
Let's close it for now

433
00:23:26.850 --> 00:23:28.550
It's not Mesh

434
00:23:28.550 --> 00:23:30.400
We need Box Component

435
00:23:30.400 --> 00:23:32.700
But it says Mesh, which isn't right

436
00:23:32.700 --> 00:23:35.850
So let's change everything here

437
00:23:35.850 --> 00:23:39.800
For Profile, we need to assign something out of Box Component

438
00:23:39.800 --> 00:23:42.450
It's also not written correctly

439
00:23:44.150 --> 00:23:46.500
Yes, this is the right way to do it

440
00:23:47.150 --> 00:23:48.350
This here as well

441
00:23:48.350 --> 00:23:51.500
I realize that I didn't copy this

442
00:23:52.000 --> 00:23:55.550
So let's do it again here

443
00:23:56.350 --> 00:23:58.300
So this is what it is

444
00:23:58.300 --> 00:24:01.350
I said 'Box' but I wrote 'Mesh' here

445
00:24:01.350 --> 00:24:04.000
Same thing here

446
00:24:04.300 --> 00:24:06.750
Let's write it out here

447
00:24:08.600 --> 00:24:12.000
Looking at it again, starting with Enemy

448
00:24:12.000 --> 00:24:14.200
For Mesh, we disabled the collision

449
00:24:14.200 --> 00:24:16.350
And we enabled it for Box

450
00:24:17.150 --> 00:24:20.200
And for the class at Enemy

451
00:24:20.800 --> 00:24:24.000
We set the profile for its collision settings

452
00:24:24.850 --> 00:24:26.850
Same with Bullet

453
00:24:30.800 --> 00:24:34.500
Let's build it again

454
00:24:36.900 --> 00:24:39.450
And run it

455
00:24:47.350 --> 00:24:50.350
So as of its content

456
00:24:51.450 --> 00:24:53.150
Now it looks alright

457
00:24:53.150 --> 00:24:55.000
It says Bullet here

458
00:24:55.000 --> 00:24:57.000
So, Enemy too

459
00:24:59.950 --> 00:25:02.600
It's set up nicely as we can see here

460
00:25:06.650 --> 00:25:07.750
Let's go back here

461
00:25:07.750 --> 00:25:10.400
And now it's set as Player

462
00:25:10.400 --> 00:25:13.000
So that's how we set it up here

463
00:25:13.600 --> 00:25:16.250
Let's check if Mesh is off as well

464
00:25:16.300 --> 00:25:19.450
For Mesh, this Collision Enabled

465
00:25:19.450 --> 00:25:23.000
We can see how it is set as No Collision

466
00:25:24.050 --> 00:25:26.850
So now it is working as it should

467
00:25:26.850 --> 00:25:28.700
So let's run it

468
00:25:33.150 --> 00:25:34.950
Let's see if the log is printing

469
00:25:34.951 --> 00:25:36.751
Yes, we see how it is printed

470
00:25:39.300 --> 00:25:42.700
So now we need to actually process it here

471
00:25:42.700 --> 00:25:45.450
So a while ago, we said this is our plan

472
00:25:45.450 --> 00:25:47.150
Enemy destroys Player

473
00:25:47.150 --> 00:25:50.100
And Bullet destroys Enemy

474
00:25:50.100 --> 00:25:51.550
So let's start with Enemy

475
00:25:51.550 --> 00:25:53.000
Enemy

476
00:25:54.000 --> 00:25:58.400
Let's come over here, and the actual part for collision is here

477
00:25:58.400 --> 00:26:00.000
So here

478
00:26:01.200 --> 00:26:04.350
Let's say, if

479
00:26:04.350 --> 00:26:06.400
Other Actor

480
00:26:06.400 --> 00:26:08.000
If this Other Actor is

481
00:26:09.200 --> 00:26:11.200
Our Player

482
00:26:13.000 --> 00:26:15.000
Then you die

483
00:26:15.000 --> 00:26:17.000
And I die

484
00:26:18.000 --> 00:26:19.150
Right

485
00:26:19.150 --> 00:26:21.750
So if

486
00:26:21.750 --> 00:26:23.650
Let's start with the cast

487
00:26:23.650 --> 00:26:25.400
When we process something like this

488
00:26:25.400 --> 00:26:29.000
When we verify what Other Actor is

489
00:26:29.000 --> 00:26:30.350
We have a few methods

490
00:26:30.350 --> 00:26:32.850
We could use a tag or

491
00:26:32.850 --> 00:26:37.600
We could use the name and compare with the letters in it

492
00:26:37.600 --> 00:26:41.000
Or we could use its type and cast it

493
00:26:41.000 --> 00:26:44.450
To test if that is the right type

494
00:26:44.450 --> 00:26:47.450
Let me use the casting method here

495
00:26:49.000 --> 00:26:52.000
So let's say 'Cast'

496
00:26:53.000 --> 00:26:54.250
And let's do this

497
00:26:54.250 --> 00:26:57.000
Cast is a function that looks like this

498
00:26:57.000 --> 00:26:59.700
And then here

499
00:26:59.700 --> 00:27:02.800
We write the data whose type we want to change

500
00:27:02.800 --> 00:27:06.000
For me this is APlayerPawn

501
00:27:06.150 --> 00:27:09.000
So here, it would be Other Actor

502
00:27:13.250 --> 00:27:15.500
And then we will accept this

503
00:27:15.500 --> 00:27:18.900
And then, of course we receive it as APlaywerPawn

504
00:27:18.900 --> 00:27:23.200
And it's too much work to write this out every time, right?

505
00:27:23.200 --> 00:27:24.750
If we say Player every time

506
00:27:24.750 --> 00:27:28.500
So usually we just write out 'auto' like so

507
00:27:29.350 --> 00:27:32.000
It's a pointer, so you could say this

508
00:27:32.000 --> 00:27:33.750
Write out 'Auto'

509
00:27:33.750 --> 00:27:36.600
Then with 'Auto' it automatically does this

510
00:27:36.700 --> 00:27:39.000
Try hovering over and it looks like this

511
00:27:39.800 --> 00:27:43.800
It accepts it as this data type

512
00:27:44.200 --> 00:27:46.250
Since it's a pointer, let's add this

513
00:27:46.250 --> 00:27:49.000
So is this Player or not?

514
00:27:49.000 --> 00:27:52.000
We can ask, if nullptr

515
00:27:52.700 --> 00:27:55.250
This asks if this is not Null

516
00:27:55.250 --> 00:27:56.650
Instead of using the equal sign

517
00:27:56.650 --> 00:27:59.000
So if this is not Null

518
00:27:59.000 --> 00:28:02.000
Then this Other is PlayerPawn

519
00:28:02.650 --> 00:28:04.700
Then we work with 'you die' and 'I die' parts

520
00:28:04.700 --> 00:28:10.000
I should've added the header here

521
00:28:10.600 --> 00:28:13.200
Player Pawn header is added here

522
00:28:16.500 --> 00:28:21.000
So this part destroys Player

523
00:28:21.000 --> 00:28:24.000
Let's use Destroy

524
00:28:24.700 --> 00:28:27.200
And then for 'I die', I is 'this'

525
00:28:27.200 --> 00:28:31.000
And we write out Destroy like so

526
00:28:31.000 --> 00:28:33.000
And we can omit 'this' here

527
00:28:33.000 --> 00:28:35.000
You could do it this way as well

528
00:28:35.000 --> 00:28:36.000
It's the same thing

529
00:28:36.000 --> 00:28:39.300
So let's use this same structure for Bullet as well

530
00:28:39.300 --> 00:28:42.450
Then for Bullet, since this function is not implemented yet

531
00:28:42.450 --> 00:28:46.000
Let's copy the structur of the function at Emeny as it is

532
00:28:46.000 --> 00:28:48.300
And paste it right here

533
00:28:48.300 --> 00:28:52.200
Let's add it below Tick here

534
00:28:52.200 --> 00:28:54.850
And then we add the implementation

535
00:28:54.850 --> 00:28:56.450
We repeat the same thing

536
00:28:56.450 --> 00:28:59.150
And then over at BulletActor

537
00:28:59.150 --> 00:29:03.100
At BeginPlay let's request it from Box Component

538
00:29:03.100 --> 00:29:07.000
'Dear Box Component, let me know when you collide'

539
00:29:07.000 --> 00:29:10.400
OnComponentBeginOverlap

540
00:29:10.400 --> 00:29:14.500
And let's add AddDynamic

541
00:29:16.800 --> 00:29:19.000
Let's write it out like so

542
00:29:19.000 --> 00:29:20.250
Let's add 'this' next

543
00:29:20.250 --> 00:29:21.850
And then ampersand

544
00:29:21.851 --> 00:29:24.451
And we add the whole name for the function

545
00:29:24.451 --> 00:29:26.250
So over here, we have it here

546
00:29:26.250 --> 00:29:30.000
So we can copy and paste it right away here

547
00:29:30.000 --> 00:29:31.300
And then over here

548
00:29:31.300 --> 00:29:33.700
Here, the Other Actor

549
00:29:33.700 --> 00:29:38.700
If this Other is Enemy

550
00:29:39.800 --> 00:29:44.000
we want 'you die' and 'I die' parts

551
00:29:44.350 --> 00:29:45.500
So let's do this

552
00:29:45.500 --> 00:29:47.150
Let's change it up a little

553
00:29:47.150 --> 00:29:51.000
Here, we used the function 'cast' here

554
00:29:51.750 --> 00:29:55.000
And once we get into this function

555
00:29:56.000 --> 00:29:57.200
Let's get in there like so

556
00:29:57.200 --> 00:29:59.450
Actually, we can't do that here

557
00:29:59.450 --> 00:30:01.950
Let's try it here, where we worked at before

558
00:30:01.950 --> 00:30:03.550
Let's check into our 'cast' function

559
00:30:03.550 --> 00:30:05.000
It looks like this

560
00:30:05.000 --> 00:30:08.000
ANd then, finally

561
00:30:08.000 --> 00:30:10.000
This if statement says

562
00:30:10.000 --> 00:30:11.700
It says 'is a'

563
00:30:11.700 --> 00:30:14.250
When we talk about class

564
00:30:14.250 --> 00:30:16.000
There is a concept of relationship

565
00:30:16.001 --> 00:30:18.951
When we say Object Constraining Programming (OCP)

566
00:30:18.951 --> 00:30:21.980
At OCP, there is this concept

567
00:30:23.280 --> 00:30:26.580
Let's visualize a class

568
00:30:26.581 --> 00:30:29.181
We have the parent

569
00:30:30.080 --> 00:30:32.550
And the child

570
00:30:34.000 --> 00:30:38.559
And we say the child inherits from the parent

571
00:30:38.559 --> 00:30:43.310
This is the 'is-a' relationship

572
00:30:44.461 --> 00:30:45.411
The is-a relationship

573
00:30:45.411 --> 00:30:47.911
So the child can turn into the parent

574
00:30:47.911 --> 00:30:50.311
Or the parent type into the child

575
00:30:50.312 --> 00:30:51.312
This casting is available

576
00:30:51.360 --> 00:30:53.170
To enable type casting

577
00:30:53.171 --> 00:30:55.721
It should be in this inheritance relationship

578
00:30:55.721 --> 00:30:58.440
This is the is-a relationship

579
00:30:58.440 --> 00:31:02.920
And let's say, this child

580
00:31:03.971 --> 00:31:05.420
Let me take as an example...

581
00:31:05.420 --> 00:31:06.240
Let's say a knife

582
00:31:06.240 --> 00:31:09.510
Let's say that there is a class called knife

583
00:31:09.510 --> 00:31:13.970
As instance variable, let's say

584
00:31:13.971 --> 00:31:17.171
This child has the knife

585
00:31:17.520 --> 00:31:20.720
Then this child and the knife aren't in is-a relationship

586
00:31:20.720 --> 00:31:21.839
It's not the inheritance relationship

587
00:31:21.839 --> 00:31:26.419
This kind of relationship is called 'has-a' relationship

588
00:31:27.519 --> 00:31:29.279
The 'has-A' relationship

589
00:31:29.279 --> 00:31:31.919
This is the two types of relationship here

590
00:31:31.919 --> 00:31:33.559
So is-a relationship is, in the end

591
00:31:33.560 --> 00:31:36.610
The relationship that enables for casting

592
00:31:37.279 --> 00:31:41.680
That's why we can verify by checking if it is an is-a

593
00:31:41.680 --> 00:31:43.360
So let's use that here

594
00:31:43.360 --> 00:31:46.879
Here, instead of cast, let's try this

595
00:31:46.879 --> 00:31:50.830
So if, this OtherActor

596
00:31:51.730 --> 00:31:54.959
If OtherActor, is-a

597
00:31:54.959 --> 00:31:57.140
There's this function here

598
00:31:57.140 --> 00:31:58.320
It's the template here

599
00:31:58.320 --> 00:31:59.040
Let's do this

600
00:31:59.040 --> 00:32:02.879
And here, I write the data type I want to verify

601
00:32:02.879 --> 00:32:06.080
This asks if you want to work with Enemy here

602
00:32:06.080 --> 00:32:10.239
So it asks 'AEnemyActor'

603
00:32:10.239 --> 00:32:11.771
So if this is true

604
00:32:11.771 --> 00:32:14.321
We proceed with 'you die' and 'I die'

605
00:32:14.321 --> 00:32:17.519
With the casting, this is what we get

606
00:32:17.519 --> 00:32:21.120
If I want to verify various types

607
00:32:21.120 --> 00:32:23.310
Then more if statements have to be

608
00:32:23.311 --> 00:32:25.511
Added down here like so

609
00:32:25.511 --> 00:32:28.960
But using is-a, we can simply use 'else if'

610
00:32:28.960 --> 00:32:32.320
So you have a choice between these

611
00:32:32.570 --> 00:32:34.880
I will try this method

612
00:32:34.880 --> 00:32:38.750
Same thing, for 'you die' and 'I die', at OtherActor

613
00:32:39.451 --> 00:32:41.301
Destroy

614
00:32:42.000 --> 00:32:45.600
And at 'this', Destroy

615
00:32:45.600 --> 00:32:48.479
I'll write it out like so

616
00:32:48.479 --> 00:32:50.160
So this is done

617
00:32:50.160 --> 00:32:51.870
Since we edited this part

618
00:32:51.871 --> 00:32:53.621
We should restart it

619
00:32:53.621 --> 00:32:58.269
Let's restart

620
00:33:11.439 --> 00:33:13.760
And now let's run

621
00:33:13.760 --> 00:33:15.569
Let's try shooting

622
00:33:15.569 --> 00:33:17.451
When the two meet, they get destroyed

623
00:33:17.451 --> 00:33:19.101
When they touch, they get destroyed

624
00:33:19.250 --> 00:33:20.579
So it is working well

625
00:33:21.180 --> 00:33:24.200
Making Game Over

626
00:33:25.000 --> 00:33:28.320
So now that we have the collision settings

627
00:33:28.320 --> 00:33:32.236
Let's make the Game Over screen

628
00:33:32.439 --> 00:33:34.110
In order for a Game Over

629
00:33:34.111 --> 00:33:36.511
We need to make things like its UI

630
00:33:36.560 --> 00:33:39.649
So let's make a widget here

631
00:33:39.649 --> 00:33:44.279
At Unreal, whatever processes UI is called widget

632
00:33:44.279 --> 00:33:48.309
And usually the full term is 'Unreal Motion Graphic'

633
00:33:48.309 --> 00:33:50.159
So a UMG

634
00:33:51.310 --> 00:33:52.454
Let's creat one

635
00:33:52.454 --> 00:33:54.004
Right click

636
00:33:54.005 --> 00:33:55.662
Here's User Interface

637
00:33:56.313 --> 00:33:59.013
Let's go with Widget Blueprint

638
00:33:59.013 --> 00:34:02.240
See how it is inheriting our UserWiedget class

639
00:34:02.240 --> 00:34:06.559
Meaning, if we are to create the class with C++

640
00:34:06.559 --> 00:34:08.909
It will inherit the User widget

641
00:34:08.910 --> 00:34:12.310
And that will be inherited back to this Blueprint

642
00:34:12.559 --> 00:34:14.639
So that's the plan for us

643
00:34:14.639 --> 00:34:18.639
So let's go to Tools and create a class

644
00:34:18.689 --> 00:34:21.550
Choose All Classes here

645
00:34:21.551 --> 00:34:22.901
And write it out here

646
00:34:22.901 --> 00:34:25.200
'Userwideget'

647
00:34:26.000 --> 00:34:27.299
It's here, right?

648
00:34:27.300 --> 00:34:30.000
Click on this and go to 'Next'

649
00:34:30.399 --> 00:34:33.600
Since we are working with Game Over here

650
00:34:33.600 --> 00:34:36.320
Let's write GameOverWidget

651
00:34:36.320 --> 00:34:39.120
Let's Create

652
00:34:39.920 --> 00:34:43.450
And it is created here

653
00:34:45.200 --> 00:34:49.809
Load it and it gets created here as well

654
00:34:50.559 --> 00:34:52.320
Yes, this is how we make it

655
00:34:52.320 --> 00:34:55.380
So let's begin with the work that is visible

656
00:34:55.381 --> 00:34:56.531
Let's start with that

657
00:34:56.531 --> 00:34:59.839
So choose our GameOverWidget

658
00:34:59.839 --> 00:35:02.559
And create its Blueprint, like so

659
00:35:02.559 --> 00:35:05.359
But actually, this is a lot of work

660
00:35:05.359 --> 00:35:08.320
So let's go over here, and instead of Blueprint

661
00:35:08.320 --> 00:35:10.720
Let's go with User Interface here

662
00:35:10.720 --> 00:35:12.959
And we'll swap the parent

663
00:35:12.959 --> 00:35:14.480
So at User Interface

664
00:35:14.480 --> 00:35:16.559
We're back at that Blueprint folder

665
00:35:16.559 --> 00:35:18.799
Right click here

666
00:35:18.799 --> 00:35:20.640
Select User Interface

667
00:35:20.640 --> 00:35:22.399
Click on Widget Blueprint

668
00:35:22.399 --> 00:35:24.239
Then we get our User Widget

669
00:35:24.239 --> 00:35:26.559
But here, at All Classes

670
00:35:26.559 --> 00:35:29.440
Let's write it out here

671
00:35:29.440 --> 00:35:31.839
So GameOverWidget is here

672
00:35:31.839 --> 00:35:34.000
Let's write it out here

673
00:35:34.000 --> 00:35:36.000
Select to create

674
00:35:36.000 --> 00:35:38.640
So since this is a Widget Blueprint

675
00:35:38.640 --> 00:35:42.720
Let's use the prefix 'wbp

676
00:35:42.720 --> 00:35:44.839
So this is for Game Over

677
00:35:46.420 --> 00:35:49.119
So let's call it WBP_GameOver

678
00:35:49.119 --> 00:35:51.780
Let's save here

679
00:35:52.630 --> 00:35:53.920
Let's start editing

680
00:35:53.920 --> 00:35:55.920
Let's plan on this screen visuals

681
00:35:55.920 --> 00:35:57.760
First, what we will do is

682
00:35:57.760 --> 00:35:58.480
We will do it like so

683
00:35:58.480 --> 00:36:01.600
We start with this box at the background

684
00:36:01.600 --> 00:36:04.239
We will make it a little transparent

685
00:36:04.239 --> 00:36:06.950
And we will write out 'Game Over'

686
00:36:08.000 --> 00:36:10.080
Maybe in English?

687
00:36:10.830 --> 00:36:13.000
Game Over

688
00:36:14.000 --> 00:36:15.679
With that text, and then

689
00:36:15.679 --> 00:36:17.529
Here, 'Quit'

690
00:36:18.079 --> 00:36:20.739
And here, 'Restart'

691
00:36:22.239 --> 00:36:24.239
These are the two buttons we will add here

692
00:36:24.239 --> 00:36:27.040
That's the UI of the screen

693
00:36:27.040 --> 00:36:28.320
This is simple

694
00:36:28.320 --> 00:36:29.690
Let's try it here

695
00:36:30.640 --> 00:36:34.720
We will start with adding a panel here

696
00:36:34.720 --> 00:36:36.799
Over here at the bottom you have Panel

697
00:36:36.799 --> 00:36:38.360
It must be hidden in the dropdown menu

698
00:36:38.360 --> 00:36:40.320
So try opening it up here

699
00:36:40.320 --> 00:36:42.079
And we have Canvas Panel

700
00:36:42.079 --> 00:36:44.799
Let's drag and drop

701
00:36:44.799 --> 00:36:46.320
And let's create it here

702
00:36:46.320 --> 00:36:49.119
Then this gives us a section like so

703
00:36:49.119 --> 00:36:50.559
And then, at the bottom right

704
00:36:50.559 --> 00:36:52.079
Drag on this cursor and

705
00:36:52.079 --> 00:36:54.239
We can adjust the resolution

706
00:36:54.239 --> 00:36:56.079
I will go with the default resolution

707
00:36:56.079 --> 00:36:59.780
And work with this 1280x720 one

708
00:37:00.480 --> 00:37:04.700
And we will add a back panel

709
00:37:05.200 --> 00:37:06.880
In an image

710
00:37:06.880 --> 00:37:08.459
Like so

711
00:37:09.560 --> 00:37:17.460
Let's make it around 1200x800

712
00:37:17.460 --> 00:37:21.679
Around 1200x800

713
00:37:21.679 --> 00:37:25.440
And let's set it as 0.0 for now

714
00:37:27.440 --> 00:37:28.880
So then this is what we have

715
00:37:28.880 --> 00:37:29.920
So over here

716
00:37:29.920 --> 00:37:32.160
We have this flower-shaped thing

717
00:37:32.160 --> 00:37:33.600
This is called an anchor

718
00:37:33.600 --> 00:37:35.279
This anchor is at the top left

719
00:37:35.279 --> 00:37:37.440
Then what this wil do is

720
00:37:37.440 --> 00:37:39.200
Whenever we change the resolution

721
00:37:39.200 --> 00:37:40.079
This is what happens

722
00:37:40.079 --> 00:37:42.320
This becomes the anchoring point

723
00:37:42.320 --> 00:37:45.040
So the top left is the anchoring point

724
00:37:45.040 --> 00:37:47.600
Since there are many options for resolution

725
00:37:47.600 --> 00:37:50.399
I recommend working with variable or adaptive resolution

726
00:37:50.399 --> 00:37:52.880
And what matters in that case is this anchor

727
00:37:52.880 --> 00:37:54.959
I will position this anchor at the center

728
00:37:54.959 --> 00:37:57.440
I will palce it at the center of the screen

729
00:37:57.440 --> 00:37:59.519
And let's start working on this

730
00:37:59.519 --> 00:38:00.720
Now, I want this image

731
00:38:00.720 --> 00:38:02.239
To be placed at the center

732
00:38:02.239 --> 00:38:05.119
For that, here

733
00:38:05.119 --> 00:38:07.119
There is 'Alignment' here

734
00:38:07.119 --> 00:38:09.519
This is the ratio here

735
00:38:09.519 --> 00:38:10.720
It goes from 0 to 1

736
00:38:10.720 --> 00:38:13.119
So this is 0, and this is 1

737
00:38:13.119 --> 00:38:16.079
So if I try 0.1 here

738
00:38:16.079 --> 00:38:19.440
It goes to the left like so

739
00:38:19.440 --> 00:38:22.079
And for this, we'll start with 0.0

740
00:38:22.079 --> 00:38:25.279
Then it will move to the center like so

741
00:38:25.279 --> 00:38:27.200
So for this, if we say 1

742
00:38:27.200 --> 00:38:29.440
This is what happens

743
00:38:29.440 --> 00:38:31.279
Then, if we say 0.5

744
00:38:31.279 --> 00:38:32.239
It will be the center

745
00:38:32.239 --> 00:38:34.480
And same thing here, 0.5

746
00:38:34.480 --> 00:38:38.480
Then it is placed right at the center

747
00:38:38.480 --> 00:38:40.079
That's where we start with

748
00:38:40.079 --> 00:38:41.359
And let's change the color

749
00:38:41.359 --> 00:38:44.079
Let's change it to black

750
00:38:44.079 --> 00:38:46.630
This 'A' at the bottom is for Alpha

751
00:38:46.630 --> 00:38:49.520
Or transparency, so 1 here means 100%

752
00:38:49.520 --> 00:38:51.440
So let's reduce it down

753
00:38:51.440 --> 00:38:54.479
To around 30%

754
00:38:54.479 --> 00:38:56.320
Let's finish around here

755
00:38:56.320 --> 00:38:57.520
And we will now add

756
00:38:57.520 --> 00:39:00.400
Game Over with two buttons

757
00:39:00.400 --> 00:39:02.799
So here

758
00:39:02.799 --> 00:39:04.719
Go to Text

759
00:39:04.719 --> 00:39:07.440
And place it here

760
00:39:07.440 --> 00:39:09.440
So this is here, drag it in

761
00:39:09.440 --> 00:39:11.919
And same thing here

762
00:39:11.919 --> 00:39:13.840
We will work with the anchor a little

763
00:39:13.840 --> 00:39:17.139
First, let's say 'Game Over'

764
00:39:19.039 --> 00:39:20.640
Write it out like so

765
00:39:20.640 --> 00:39:24.000
Let's give the font size around 150

766
00:39:24.000 --> 00:39:26.940
Then this is what we get

767
00:39:28.640 --> 00:39:30.719
And then, same thing here

768
00:39:30.719 --> 00:39:32.880
Anchor at the center

769
00:39:32.880 --> 00:39:34.880
And then with 0.0

770
00:39:34.880 --> 00:39:35.919
This is what happens

771
00:39:35.919 --> 00:39:38.000
And if we want this right at the center

772
00:39:38.000 --> 00:39:40.799
Go to Alignment and say 0.5, 0.5

773
00:39:40.799 --> 00:39:42.640
And it comes to the center

774
00:39:42.640 --> 00:39:45.520
Here, I won't say this for the vertical position

775
00:39:45.520 --> 00:39:47.440
So with this

776
00:39:47.440 --> 00:39:51.330
Let's bring its Y position up a little

777
00:39:52.559 --> 00:39:54.840
This is where we will place it

778
00:39:55.840 --> 00:39:58.640
And let's add two buttons here

779
00:39:58.640 --> 00:39:59.760
Button is right here

780
00:39:59.760 --> 00:40:03.269
Add a button

781
00:40:03.919 --> 00:40:07.579
Resize it a little

782
00:40:09.679 --> 00:40:11.359
And we need some text in there

783
00:40:11.359 --> 00:40:13.760
So that the button says something

784
00:40:13.761 --> 00:40:16.845
So for the text, this is for 'Quit'

785
00:40:17.960 --> 00:40:20.010
So let's write it out

786
00:40:20.561 --> 00:40:23.062
Let's also resize it

787
00:40:23.062 --> 00:40:25.412
I'll go with size 60

788
00:40:27.360 --> 00:40:32.100
And let's change the button name to _Quit

789
00:40:32.101 --> 00:40:34.101
Button_Quit

790
00:40:34.102 --> 00:40:36.053
And let's make another

791
00:40:36.053 --> 00:40:39.753
First, compile this and save

792
00:40:40.240 --> 00:40:43.210
And do Ctrl D to duplicate

793
00:40:43.261 --> 00:40:46.461
So place this over here

794
00:40:47.719 --> 00:40:50.439
I am trying to do it fast

795
00:40:50.440 --> 00:40:53.040
So this may not be the most aesthetic version, but you try yours nicely

796
00:40:53.439 --> 00:40:55.280
So place it like so

797
00:40:55.281 --> 00:40:57.431
These are at the top left now

798
00:40:57.432 --> 00:41:01.682
So let's move the anchor to the center for all

799
00:41:02.720 --> 00:41:03.880
Like so

800
00:41:03.881 --> 00:41:06.231
Let's move everything to the center

801
00:41:06.232 --> 00:41:08.482
This is how, even when we move it around

802
00:41:08.483 --> 00:41:10.533
The anchor stays at the center

803
00:41:11.980 --> 00:41:14.039
So that's what we do here

804
00:41:14.640 --> 00:41:16.440
And this here should not be 'Quit'

805
00:41:16.441 --> 00:41:18.391
We'll use 'Restart'

806
00:41:20.710 --> 00:41:24.609
So let's change the text to 'Restart'

807
00:41:29.059 --> 00:41:31.539
And if you want to change its color, click here

808
00:41:31.540 --> 00:41:33.190
And change the background color

809
00:41:33.191 --> 00:41:36.041
For Quit, we could use red

810
00:41:36.639 --> 00:41:39.000
And for Restart

811
00:41:40.101 --> 00:41:44.401
We could use blue, or something like that

812
00:41:45.250 --> 00:41:49.680
You can also change the color of 'GameOver' here

813
00:41:50.760 --> 00:41:52.659
Shall we go with yellow?

814
00:41:52.960 --> 00:41:57.411
Then, in order to process this at the original Blueprint

815
00:41:57.411 --> 00:41:59.959
Over at the top, we have Designer and Graph

816
00:41:59.959 --> 00:42:03.400
Designer is where we work with the layouts

817
00:42:03.400 --> 00:42:09.150
And Graph is where we do the visual coding

818
00:42:09.199 --> 00:42:11.639
And we won't work on it here

819
00:42:11.640 --> 00:42:13.890
We will make a class for this

820
00:42:13.890 --> 00:42:16.229
So generally for UI

821
00:42:16.230 --> 00:42:19.730
Widget designers start by making the widget

822
00:42:19.731 --> 00:42:22.331
And with that, us programmers

823
00:42:22.631 --> 00:42:24.800
Create a class and add it on

824
00:42:24.801 --> 00:42:27.251
To further process it

825
00:42:27.251 --> 00:42:32.701
So the other method is, this gets inherited with the existing Blueprint

826
00:42:32.701 --> 00:42:35.889
And we create a component for it

827
00:42:35.890 --> 00:42:38.140
To implement it here

828
00:42:38.491 --> 00:42:42.141
But instead, we will make a variable at this side

829
00:42:42.142 --> 00:42:44.342
And bind it together

830
00:42:44.342 --> 00:42:46.690
So let's try this latter method together

831
00:42:46.691 --> 00:42:50.491
So let's come over to GameOver Widget Header

832
00:42:50.492 --> 00:42:52.392
And say 'public'

833
00:42:53.440 --> 00:42:56.221
And let's write it out here

834
00:42:56.221 --> 00:42:57.821
UPROPERTY

835
00:43:00.249 --> 00:43:02.910
EditAnywhere

836
00:43:06.279 --> 00:43:09.299
And then write 'class'

837
00:43:09.300 --> 00:43:10.500
That's a button, so

838
00:43:10.501 --> 00:43:13.051
So say UButton

839
00:43:13.399 --> 00:43:15.640
We can actually see this

840
00:43:15.641 --> 00:43:17.741
Here, it says Button

841
00:43:17.742 --> 00:43:20.492
And to the top right, it says Open Button

842
00:43:20.492 --> 00:43:22.011
So click on this

843
00:43:22.011 --> 00:43:25.611
And we can see the class of that button

844
00:43:25.612 --> 00:43:28.412
It says UButton here

845
00:43:28.413 --> 00:43:31.360
So when you have trouble understanding

846
00:43:31.360 --> 00:43:32.970
You can look for it like so

847
00:43:32.971 --> 00:43:35.071
UButton, let's go with the pointer

848
00:43:35.072 --> 00:43:39.022
And the name we use here must be the same as this name here

849
00:43:39.622 --> 00:43:41.720
So say Button_Quit

850
00:43:41.721 --> 00:43:44.371
And So you cannot add a space here

851
00:43:44.670 --> 00:43:46.759
Everything should be together with no space

852
00:43:46.760 --> 00:43:49.160
And then let's write it out

853
00:43:49.609 --> 00:43:50.979
And we need to bind it

854
00:43:50.980 --> 00:43:53.431
To bind, write 'meta' here

855
00:43:53.431 --> 00:43:55.631
And you must add the parenthesis like this

856
00:43:55.632 --> 00:43:59.632
And write 'BindWidget'

857
00:44:00.720 --> 00:44:02.690
That's how you write it

858
00:44:02.691 --> 00:44:04.841
And let's make another same thing

859
00:44:04.842 --> 00:44:06.542
For not Quit but Restart

860
00:44:07.093 --> 00:44:08.793
So that's how you do it

861
00:44:09.479 --> 00:44:13.019
Save and let's go check

862
00:44:13.020 --> 00:44:15.470
To check for the binding

863
00:44:15.471 --> 00:44:18.069
Next to Hierarchy is 'Bind Widgets'

864
00:44:18.069 --> 00:44:21.160
Now, it is not bound correctly

865
00:44:21.161 --> 00:44:22.461
So we don't have anything bound

866
00:44:22.462 --> 00:44:23.562
So this part is empty

867
00:44:23.563 --> 00:44:28.163
So let's compile and take a look again

868
00:44:32.180 --> 00:44:34.221
So this has been compiled

869
00:44:34.221 --> 00:44:36.621
Over here, now it has a dropdown menu

870
00:44:36.622 --> 00:44:39.422
And we get two successful ones

871
00:44:39.422 --> 00:44:41.011
It's because they have the same name

872
00:44:41.011 --> 00:44:43.461
If we are to change the name

873
00:44:44.262 --> 00:44:48.012
This name at class and this name here

874
00:44:49.160 --> 00:44:50.729
Then there will be an error

875
00:44:50.730 --> 00:44:53.980
So it says the name is different, or that it cannot find it

876
00:44:54.331 --> 00:44:57.081
So we need to set the name identically

877
00:44:57.679 --> 00:45:00.209
So now when we compile, it works well

878
00:45:00.210 --> 00:45:05.060
And now we will connect action to this button

879
00:45:05.060 --> 00:45:06.561
Or rather, connect an event

880
00:45:06.562 --> 00:45:08.562
In fact, if we are to do it on Blueprint

881
00:45:08.562 --> 00:45:12.799
You can tick the box for Is Variable here

882
00:45:13.100 --> 00:45:16.450
And at the bottom we see that event

883
00:45:17.199 --> 00:45:20.440
I mean, you can see it even without Variable check

884
00:45:21.041 --> 00:45:24.691
Anyways, you can click this, and if you want this to be clickable

885
00:45:24.692 --> 00:45:27.992
Then you get this node over at Graph

886
00:45:27.992 --> 00:45:30.359
So you can process it here

887
00:45:30.360 --> 00:45:32.760
This is what works for Blueprint

888
00:45:32.959 --> 00:45:36.590
Since we are going to process it a C++

889
00:45:36.591 --> 00:45:38.441
We can come over here and process it

890
00:45:38.442 --> 00:45:40.467
So if we press this

891
00:45:40.468 --> 00:45:42.418
It calls a function

892
00:45:42.419 --> 00:45:45.440
And after that call we can process it

893
00:45:45.940 --> 00:45:49.710
So over here

894
00:45:49.761 --> 00:45:51.311
We will connect a function

895
00:45:51.312 --> 00:45:53.562
And to do so, we need something

896
00:45:53.562 --> 00:45:55.470
We need a concept of 'start'

897
00:45:55.471 --> 00:45:57.021
So over here

898
00:45:57.622 --> 00:46:00.522
The starting function is this Construct

899
00:46:01.220 --> 00:46:05.610
So we need to use this Construct function

900
00:46:06.361 --> 00:46:09.511
It must be at the parent, inherited as virtual

901
00:46:09.512 --> 00:46:10.912
It is being redefined for use

902
00:46:10.912 --> 00:46:15.390
virtual void Native

903
00:46:15.391 --> 00:46:17.791
We have this NativeConstruct

904
00:46:18.040 --> 00:46:22.200
Which we can use to implement

905
00:46:22.760 --> 00:46:25.800
So we connect our button here

906
00:46:25.851 --> 00:46:30.451
And we need a function to call when the button is clicked

907
00:46:31.100 --> 00:46:34.400
So we will create two more functions

908
00:46:34.401 --> 00:46:36.501
Of course, as UFUNCTION

909
00:46:37.600 --> 00:46:39.959
Meaning, these are also processed as delegates

910
00:46:39.960 --> 00:46:45.860
So void OnClick, Quit

911
00:46:46.309 --> 00:46:50.799
Copy everything, restart

912
00:46:50.799 --> 00:46:54.480
Let's create these two functions

913
00:47:00.040 --> 00:47:02.259
And over at this side

914
00:47:02.760 --> 00:47:05.360
We will be connecting the button here

915
00:47:06.839 --> 00:47:09.709
And here, we will be implementing the functions

916
00:47:09.710 --> 00:47:13.860
So to connect thf button, at Button_Quit

917
00:47:14.261 --> 00:47:17.261
We have a delegate named OnClicked

918
00:47:17.559 --> 00:47:20.210
So it looks like this over here

919
00:47:21.111 --> 00:47:23.211
It is hard to find, let's do it as it is

920
00:47:23.211 --> 00:47:28.970
So here, after the period, AddDynamic

921
00:47:29.671 --> 00:47:31.321
We can write it out as it says here

922
00:47:31.321 --> 00:47:37.239
Add 'this' and connect the function like so

923
00:47:38.079 --> 00:47:40.899
You must add that ampersand

924
00:47:41.450 --> 00:47:44.250
You need to use the reference operator to pass over the address

925
00:47:44.399 --> 00:47:45.779
So, we get the error because

926
00:47:45.780 --> 00:47:49.780
This Header is not included to be added

927
00:47:49.781 --> 00:47:50.931
So let's include it

928
00:47:50.932 --> 00:47:54.432
So we include this button

929
00:47:56.679 --> 00:47:58.811
You could write it this way

930
00:47:58.811 --> 00:47:59.661
But I will do it this way

931
00:47:59.662 --> 00:48:02.212
Here, we see that UMG here

932
00:48:03.260 --> 00:48:06.169
It may not be a big error for now

933
00:48:06.820 --> 00:48:10.220
Let me explain more after finishing this part

934
00:48:10.221 --> 00:48:12.421
Let's set the Restart at our button

935
00:48:13.920 --> 00:48:17.320
So this needs the restart

936
00:48:20.020 --> 00:48:21.579
And we will ipmlement the function

937
00:48:21.580 --> 00:48:24.330
It is a simple work to end the game

938
00:48:24.330 --> 00:48:29.059
Here, we have UKismetSystemLibrary

939
00:48:29.360 --> 00:48:33.160
And here we have the function QuitGame

940
00:48:33.359 --> 00:48:36.879
And we first need World

941
00:48:36.880 --> 00:48:38.930
And Player Control, second

942
00:48:38.931 --> 00:48:41.831
And third, a sort of Type

943
00:48:41.832 --> 00:48:43.232
How should we fill it in?

944
00:48:43.232 --> 00:48:44.259
How should we end it?

945
00:48:44.260 --> 00:48:48.560
And this, will it be a platform-dependent processing?

946
00:48:48.561 --> 00:48:50.811
Are we going to ignore thoe on the platform?

947
00:48:50.812 --> 00:48:52.462
That's the concept here

948
00:48:52.462 --> 00:48:55.830
So for this fourth argument, for example

949
00:48:56.981 --> 00:48:58.931
We have all the PlayStation games

950
00:48:58.932 --> 00:49:02.532
And you do not quit the game right away

951
00:49:02.532 --> 00:49:05.259
When you 'quit' during a game

952
00:49:05.260 --> 00:49:06.610
It doesn't actually end the game

953
00:49:06.611 --> 00:49:09.411
You just get out into the lobby screen

954
00:49:09.609 --> 00:49:11.231
So will this ignore that?

955
00:49:11.231 --> 00:49:12.381
This is asking that question

956
00:49:12.382 --> 00:49:13.982
Same with Switch

957
00:49:14.280 --> 00:49:16.201
So let's add one by one

958
00:49:16.201 --> 00:49:18.251
Let's add GetWorld

959
00:49:20.101 --> 00:49:24.131
And second, we are to add Player Controller

960
00:49:24.131 --> 00:49:27.941
So at GetWorld, first player

961
00:49:27.942 --> 00:49:31.942
GetFirstPlayerController

962
00:49:31.943 --> 00:49:33.693
Bring this in like so

963
00:49:34.093 --> 00:49:41.651
And that is EQuitPreference

964
00:49:41.651 --> 00:49:43.581
So here it is

965
00:49:43.882 --> 00:49:46.182
Let's add Quit

966
00:49:47.233 --> 00:49:49.183
And then, next

967
00:49:49.481 --> 00:49:52.601
Let's add false

968
00:49:55.451 --> 00:49:57.900
It's because we haven't added the header

969
00:49:57.901 --> 00:49:59.951
So let's add that header like so

970
00:50:00.050 --> 00:50:05.590
Yes, you can add it at Kismet as well

971
00:50:06.571 --> 00:50:08.681
So that's how we can use it

972
00:50:08.682 --> 00:50:10.082
Quit is a simple task to implement

973
00:50:10.132 --> 00:50:11.832
And for restart

974
00:50:11.833 --> 00:50:15.333
We will reopen the level

975
00:50:16.031 --> 00:50:17.721
So it's a reload

976
00:50:17.722 --> 00:50:19.272
This will initialize everything

977
00:50:19.273 --> 00:50:22.373
It destroys everything that has been loaded

978
00:50:22.374 --> 00:50:24.574
And then it re-loads

979
00:50:24.574 --> 00:50:30.090
So here, UGameplayStatics

980
00:50:30.090 --> 00:50:33.451
Over here we have OpenLevel

981
00:50:33.852 --> 00:50:36.152
We can open the level with this

982
00:50:36.153 --> 00:50:39.253
So use GetWorld

983
00:50:39.603 --> 00:50:42.220
And then our level name is

984
00:50:42.621 --> 00:50:43.621
GameMap

985
00:50:43.672 --> 00:50:45.422
So we can use that

986
00:50:45.920 --> 00:50:48.591
So here, text

987
00:50:49.492 --> 00:50:52.342
But this will be problematic if we change the name

988
00:50:52.342 --> 00:50:54.693
So let's import the current level

989
00:50:54.743 --> 00:50:56.861
The current level name, over here

990
00:50:56.862 --> 00:51:02.212
We can use GetCurrentLevelName

991
00:51:04.061 --> 00:51:06.330
So we can use it to bring it in

992
00:51:06.331 --> 00:51:10.281
So here, let's first add the header

993
00:51:12.691 --> 00:51:18.611
And this returns FString

994
00:51:18.611 --> 00:51:21.591
So it returns something as a string

995
00:51:21.792 --> 00:51:24.292
So let's say LevelName

996
00:51:24.393 --> 00:51:27.193
So we add that levelname here

997
00:51:27.691 --> 00:51:28.490
And we get an error

998
00:51:28.491 --> 00:51:30.791
This is because

999
00:51:31.492 --> 00:51:34.542
For OpenLevel

1000
00:51:34.943 --> 00:51:38.593
We need FName, not FString

1001
00:51:38.593 --> 00:51:41.140
This error was because of the wrong data type

1002
00:51:41.141 --> 00:51:44.541
We can just change it, so let's say FName

1003
00:51:44.541 --> 00:51:47.971
That's it, FName

1004
00:51:47.972 --> 00:51:50.023
And here in front of it

1005
00:51:50.323 --> 00:51:52.323
We add the value like so

1006
00:51:54.131 --> 00:51:58.650
This allows us to load the current level

1007
00:51:58.801 --> 00:52:01.501
So finally, we need this

1008
00:52:02.701 --> 00:52:04.651
Actual UI to show up

1009
00:52:04.652 --> 00:52:08.203
And that can be shown when Enemy

1010
00:52:08.203 --> 00:52:09.001
Bumps into Player

1011
00:52:09.001 --> 00:52:11.031
When 'you die' and 'I die' happen

1012
00:52:11.032 --> 00:52:13.532
So this means Player has been destroyed

1013
00:52:13.533 --> 00:52:15.683
So what we want to do is

1014
00:52:15.684 --> 00:52:17.934
We will make it stop

1015
00:52:18.131 --> 00:52:19.610
Stop!

1016
00:52:19.611 --> 00:52:21.311
Let's stop the game

1017
00:52:21.712 --> 00:52:23.662
Should we first show the UI?

1018
00:52:24.460 --> 00:52:28.771
The GameOver UI

1019
00:52:29.211 --> 00:52:32.630
Create it first and

1020
00:52:33.381 --> 00:52:36.831
Show it on the screen

1021
00:52:36.930 --> 00:52:38.220
That will be the first thing

1022
00:52:38.221 --> 00:52:40.521
And then we stop the game

1023
00:52:41.730 --> 00:52:43.900
Yes, let's process it like so

1024
00:52:43.901 --> 00:52:47.901
So we need soemthing to make that GameOver UI

1025
00:52:48.750 --> 00:52:52.210
So, the function to create UI is

1026
00:52:52.211 --> 00:52:54.561
This function is called CreateWidget

1027
00:52:58.440 --> 00:52:59.560
That's the function

1028
00:52:59.561 --> 00:53:01.261
And here, we need

1029
00:53:01.512 --> 00:53:02.912
At first we add World

1030
00:53:02.913 --> 00:53:06.413
getWorld, like so

1031
00:53:08.071 --> 00:53:11.490
And second, TSubClassOf

1032
00:53:11.491 --> 00:53:12.491
This is UClass here

1033
00:53:12.492 --> 00:53:14.292
So this goes in here

1034
00:53:15.042 --> 00:53:18.461
We made GameOver UI at Blueprint

1035
00:53:18.462 --> 00:53:20.312
So we will be adding that here

1036
00:53:20.913 --> 00:53:23.113
So let's make it over here

1037
00:53:23.211 --> 00:53:24.190
Should we say this?

1038
00:53:24.191 --> 00:53:27.191
GameOverUIFactory

1039
00:53:29.090 --> 00:53:32.331
So we can define that variable like so

1040
00:53:33.431 --> 00:53:36.031
Let's go over here and make it here

1041
00:53:36.032 --> 00:53:37.882
UPROPERTY

1042
00:53:40.311 --> 00:53:43.610
EditAnywhere

1043
00:53:44.011 --> 00:53:46.331
TSubclassOf, and then

1044
00:53:46.332 --> 00:53:47.882
Class

1045
00:53:49.081 --> 00:53:51.930
UGame

1046
00:53:52.571 --> 00:53:54.081
OverWidget

1047
00:53:54.082 --> 00:53:55.082
This is it

1048
00:53:55.083 --> 00:53:57.733
So this will create going through these

1049
00:53:59.331 --> 00:54:01.230
So let's take them all

1050
00:54:01.231 --> 00:54:03.381
And make it over here

1051
00:54:03.382 --> 00:54:05.732
So now that we made it, let's process it

1052
00:54:06.430 --> 00:54:07.960
But here, we don't have it

1053
00:54:07.961 --> 00:54:11.011
Because, this nees to be used now

1054
00:54:13.760 --> 00:54:17.121
But we haven't included UGameOverWidget

1055
00:54:17.121 --> 00:54:18.271
So there will be an error

1056
00:54:18.370 --> 00:54:20.240
So over here

1057
00:54:23.610 --> 00:54:26.271
Let's write this

1058
00:54:29.551 --> 00:54:32.091
Let's write GameOverWidget

1059
00:54:32.092 --> 00:54:33.092
Then there's no error

1060
00:54:33.093 --> 00:54:36.993
And let's add Auto UI like so

1061
00:54:36.993 --> 00:54:38.981
And we will take this to the screen

1062
00:54:38.982 --> 00:54:40.032
The fact that we made it

1063
00:54:40.033 --> 00:54:42.183
Doesn't automatically show it on the screen

1064
00:54:42.183 --> 00:54:44.090
So in order to do so

1065
00:54:44.091 --> 00:54:49.492
At UI, using the function AddToViewport

1066
00:54:49.493 --> 00:54:51.443
Let's show it to the screen

1067
00:54:52.090 --> 00:54:54.501
And we will stop the game

1068
00:54:55.152 --> 00:54:57.802
So, let's do this and

1069
00:55:00.831 --> 00:55:03.330
Let's do Live Coding to compile

1070
00:55:04.490 --> 00:55:06.641
Yes, it works

1071
00:55:08.070 --> 00:55:11.302
So we need to fill it in over at Enemy

1072
00:55:11.302 --> 00:55:12.552
This none is empty

1073
00:55:12.553 --> 00:55:14.853
So let's fill it in with GameOver

1074
00:55:15.451 --> 00:55:17.321
So over here

1075
00:55:19.610 --> 00:55:21.011
Let's run it

1076
00:55:22.112 --> 00:55:23.062
We have it now

1077
00:55:23.063 --> 00:55:26.913
But the problem is, we don't get the cursor

1078
00:55:27.111 --> 00:55:29.160
We don't have that mouse focus

1079
00:55:29.161 --> 00:55:31.761
So we need to process it

1080
00:55:32.930 --> 00:55:38.171
We'd like to show that mouse pointer

1081
00:55:38.171 --> 00:55:39.220
So we need this

1082
00:55:39.521 --> 00:55:42.521
Stop the game and show the mouse pointer

1083
00:55:44.020 --> 00:55:46.121
We need PlayerController for this

1084
00:55:46.121 --> 00:55:47.921
At GetWorld

1085
00:55:49.251 --> 00:55:53.090
Get GetFirstPlayerController

1086
00:55:53.090 --> 00:55:55.201
Let's hold onto this here

1087
00:55:55.201 --> 00:55:57.201
Let's say it as auto pc

1088
00:55:57.202 --> 00:55:59.202
So let's stop with this

1089
00:55:59.202 --> 00:56:03.710
And at PC, there's a function called SetPause

1090
00:56:03.711 --> 00:56:05.761
So let's add 'true' here

1091
00:56:06.660 --> 00:56:11.171
And we can simply not show this

1092
00:56:11.971 --> 00:56:14.111
Or, rather, we need to show the mouse pointer

1093
00:56:14.112 --> 00:56:16.112
SetShow

1094
00:56:17.810 --> 00:56:20.160
SetShowMouseCursor

1095
00:56:20.161 --> 00:56:23.611
So we can set this as 'true'

1096
00:56:24.731 --> 00:56:26.691
Then after GameOver

1097
00:56:26.692 --> 00:56:27.792
With the restart

1098
00:56:27.792 --> 00:56:30.593
We need to reverse this

1099
00:56:32.041 --> 00:56:33.790
We do not stop

1100
00:56:34.741 --> 00:56:36.641
We run it again

1101
00:56:36.642 --> 00:56:40.042
And we need to hide that mouse pointer again

1102
00:56:41.040 --> 00:56:42.851
So to do so

1103
00:56:44.811 --> 00:56:47.130
Let's do it when Player is born

1104
00:56:47.131 --> 00:56:51.131
So at BeginPlay, let's add false

1105
00:56:53.370 --> 00:56:55.710
Let's process it like so

1106
00:56:56.561 --> 00:56:58.561
Now, compile

1107
00:57:03.131 --> 00:57:04.412
So we get the cursor

1108
00:57:04.412 --> 00:57:06.962
Restart, and it's gone again

1109
00:57:12.261 --> 00:57:14.450
So it is working well

1110
00:57:15.150 --> 00:57:18.651
But it only begins after I click

1111
00:57:19.402 --> 00:57:23.502
So we need a bit of editing for that

1112
00:57:23.802 --> 00:57:26.050
At PlayerController

1113
00:57:26.301 --> 00:57:28.901
We have SetInputMode

1114
00:57:29.102 --> 00:57:30.702
So with this InputMode

1115
00:57:30.702 --> 00:57:33.780
At FInputMode we have these three

1116
00:57:33.781 --> 00:57:37.581
So for now, generally, it says GameAndUI

1117
00:57:37.581 --> 00:57:39.970
But if we say GameOnly

1118
00:57:39.971 --> 00:57:42.071
It won't accept any clicks

1119
00:57:42.372 --> 00:57:44.372
And for UIOnly

1120
00:57:44.373 --> 00:57:47.773
It will not get any input from the screen

1121
00:57:47.773 --> 00:57:51.591
So we can have more control using these

1122
00:57:51.592 --> 00:57:54.442
At first, we can go with GameOnly

1123
00:57:54.970 --> 00:57:58.261
For this, we can use the parenthesis

1124
00:57:58.262 --> 00:58:00.062
And with GameOver

1125
00:58:00.063 --> 00:58:03.663
At GameOver we can say UI Only

1126
00:58:04.011 --> 00:58:06.541
So we do that

1127
00:58:06.541 --> 00:58:09.291
And over here at processing GameOver

1128
00:58:09.292 --> 00:58:10.942
It's UI Only

1129
00:58:12.290 --> 00:58:14.891
So by setting this up

1130
00:58:15.041 --> 00:58:17.291
It will control things better

1131
00:58:17.692 --> 00:58:19.442
So compile

1132
00:58:24.740 --> 00:58:25.410
And run

1133
00:58:25.411 --> 00:58:28.511
So even without the click, I can move it right away

1134
00:58:32.091 --> 00:58:33.791
It works

1135
00:58:33.792 --> 00:58:35.242
And after it is destroyed

1136
00:58:35.991 --> 00:58:39.091
It pauses and we get the UI

1137
00:58:39.991 --> 00:58:42.342
And no input at the game

1138
00:58:42.342 --> 00:58:45.781
And with Restart, we can press the key right away to move

1139
00:58:45.782 --> 00:58:47.782
That's how it processes it

1140
00:58:48.331 --> 00:58:52.020
That was on C++ based shooter game production

1141
00:58:52.021 --> 00:58:53.021
Thank you

1142
00:58:53.370 --> 00:58:57.520
Let's summarize what we've learned this chapter

1143
00:58:57.621 --> 00:58:58.621
Processing Collision
Individual Collision Response Setup
NotifyActorBeginOverlap() function detects partial collision

1144
00:58:58.622 --> 00:58:59.622
Calls OnComponentBeginOverlap delegate
Copy entire parameter + paste and delete the comma between data type and variable

1145
00:58:59.623 --> 00:59:00.623
MeshComp -> SetCollisionEnabled() function declared
BoxComp -> SetGenerateOverLapEvent() function declared

1146
00:59:00.624 --> 00:59:01.624
SetCollisionResponseToChannel() function to set individual channel

1147
00:59:01.625 --> 00:59:02.625
Set as Preset
Creating collision response setting every time for object is not efficient

1148
00:59:02.625 --> 00:59:03.625
Create New Profile, create Player, Bullet, Enemy at Collision Presets

1149
00:59:03.626 --> 00:59:04.626
BoxComp -> function SetCollisionProfileName() declared
Set the right collision Profile for each class

1150
00:59:04.627 --> 00:59:05.727
GameOver
UI Production
At Blueprint folder, select Widget Blueprint at User Interface

1151
00:59:05.727 --> 00:59:06.978
ALL CLASSES -> select GameOverWidget
Drag and drop Canvas Panel to set up UI screen

1152
00:59:06.828 --> 00:59:08.079
Even with the resolution change, central anchor makes sure everything is centered
Create variables and implement using bind

1153
00:59:07.979 --> 00:59:09.380
Event connection for buttons
To connect button, declare function NativeConstruct()
At OnClicked delegate, connect existing functions using AddDynamic

1154
00:59:08.631 --> 00:59:10.731
Quit button : UKismetSystemLibrary::QuitGame
Restart button : OpenLevel at GamePlayStatics

1155
00:59:10.632 --> 00:59:12.032
To creat UI, declare CreateWidget
To show it on screen, declare AddtoVieport

1156
00:59:12.032 --> 00:59:13.032
The End