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OK so now that we've got a core gameplay loop working we want to add something new to our enemies.

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So I want to do this because it's good to see that when you design your amnesty for game not everything

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is gonna make sense now everything will work the way you expected to do we made some enemies that seem

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like they made logical sense but there's a couple of things that become obvious when you start actually

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playing the game and it's OK to refine on your game after you've made some levels and discovered that

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something doesn't work quite the way you want to.

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And the thing I've noticed and you should have noticed at this point is that your enemies are a little

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bass a little bit slow to react.

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Shall we say so if you are out of range and you shoot an enemy.

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It just kind of stands there and gets shot.

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What we would really like to happen is that if the enemy gets shot it will start chasing the player

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so straight away it'll switch to his chase mode and come running to get to play.

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So we're going to set up a system to do that and it's very very easy to do what we're gonna do is first

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of all go to our enemy controlled.

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Ashley we'll go to our test scene because this is where we test things.

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So back in here.

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Let's double click on the enemy here so we can just see what's going on.

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And we're going to open up our Enemy Controller script and what we're gonna do is we're gonna scroll

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down to the bottom here.

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We're going to add a new public void

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that that will call we'll call it get shot and what this is gonna do is we're gonna scroll back up to

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the top and going to add a new bool variable so a previous bool that we'll call was shut and this function

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is just gonna say Well first of all it's gonna mark was shot is equal to true then it's going to say

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well we've been shot.

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So start chasing so we're gonna say chasing equals true and then we're going to say that we should start

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moving towards the player so Agent plus destination equals player controller does instance does transformed

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our position.

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Like so we'll just set that safe and then what we're gonna do is we're gonna call this function when

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our enemy gets damaged.

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So let's go back to our enemy health controller and in here whenever we take damage we're first of all

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gonna check and see if there is an enemy controller attached to this game object.

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So for example our targets will have an enemy health controller system but it won't have an enemy controller

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that we want to actually move.

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So what we're gonna do is at the top here we're gonna create a reference when I have a public enemy

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controller that will just call the easy for the enemy controller and we're gonna say here is if the

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Easy is not equal to no.

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So basically what we're gonna do is we're not in our inspector in unity we're gonna assign the Enemy

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Controller to this object if it has it.

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So if it's an enemy that can move will assign us here and then if it's not empty so if that means if

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it has an enemy controller then in here we're going to say okay on the Enemy Controller call the gusts

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or get shots.

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Function like so.

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Okay so let's just jump back into unity and we'll just set that up first of all and honor enemy.

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Let's go to the prefabs.

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I'm going to select the prefab of the enemy and then in the enemy held controller I'm gonna drop the

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Enemy Controller in there.

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So that's that setup.

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But then what should happen when we actually get shot.

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So at the moment we're telling it to go chasing after the player but if we scroll up here.

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So if we're not chasing we do all this stuff.

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And that's perfectly fine.

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But in here is where we handle if we are chasing.

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And most importantly here is how we tell it to stop chasing.

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Sorry.

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No not that one there.

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This one here is where we tell us to stop chasing as you can see it says chasing equals false.

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One thing I just occurred to me I don't really know why I'm setting the agent destination in that function

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down below because here is where we control where the enemy is going so I'm actually just going to remove

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that line and delete that down there.

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So it's go back up here to where our chasing is being set to false.

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And this happens when our enemy is above the distance to lose.

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So if we are too far away and we shoot the enemy it's still going to say oh well the players is too

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far away so just say chasing is false and I'm not going to try and go there but what we're gonna do

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instead is blow this we're gonna add an else statement

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and in here we're gonna say we know that we just set was shot to be true.

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So if we are above this distance we're gonna assume was shot is true.

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And once we get within this distance late range.

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So if the player gets within a certain distance to the enemy that's when we're gonna say was shot is

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false.

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At that point.

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And the reason we do this is because within this section here we're only gonna allow ourselves to stop

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chasing if was shot is false.

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So if Nuss was shot.

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So basically what happens is we'll come down here.

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We'll get shots and we're so far away from the enemy and it doesn't matter.

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Some far away from the player the enemy as we say was shot.

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It's true and chasing is true.

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So then it will go back up to here.

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And at this point it checks the distance to the player and the player the distance should be greater

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than distance to lose because it's the player so far away.

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And I'll go.

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Okay well I'll go in here but was shot is still true at the moment.

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So I can't stop chasing and what I see.

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I will put this whole thing inside the car brackets because it doesn't really matter whether we set

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this or not.

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So then we'll go down to here and say oh well this isn't true because this pit is already shit.

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And then when the player gets within this range that's when we'll say okay at this point we can stop

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marking was shot as true.

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So if the player gets within this range and then falls out of this range again that's when the enemy

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will stop chasing.

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So we can get within a certain distance to the enemy.

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And then once it gets close enough it'll say OK I know where the enemy is.

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I know where the player is going and keep shooting at him.

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And then when I lose sight lose distance to the player again that's when I stop chasing.

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So let's see this in action.

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I going to save this and we'll go back in here.

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I think at the moment our enemy might be a bit too close and he'll come chasing after us anyway.

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Yes.

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So that's just move the enemy away from us here.

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We'll put him a little bit further away there.

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So he's far enough away now.

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Well forget about our tired friend.

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Let's take their turn house.

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Now if I take a shot at our enemy here.

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Well it doesn't help when I give him a nice headshot.

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Let's I just disable our tires here for the moment.

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So let's just shoot this guy.

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Let's switch to our repeater and shoot him in the leg.

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And now he's gonna come running after me and he tries to shoot me.

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He keeps running against the wall there a little bit because we're stopping a couple of nav mesh issues

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with this guy at the moment but that's OK.

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We know how to solve that.

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It's just a problem within the unity Ed..

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It won't actually affect the final game but you can see he is correctly coming chasing after the player.

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So if I now move out of range because he was within range he's never gone back ever range again your

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way his five seconds and then he's asked back to his original position so perfect.

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We now have a way to get the enemy's attention when he gets shot.

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So it looks like oh no you've got my attention you're going to try and destroy me and we're pretty happy

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that that is working the way we expect.