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0:00

Intro

0:15

Overview

2:00

Adding tags

5:55

Using tags

8:46

Using allowed reuse

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Unreal Engine 4

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Game development

Tutorial

Ability

Abilities

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Beginner

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XP

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Buffs

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Stats

Attributes

Properties

Gameplay tags

Full game

Foundation

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Class

Statuseffect

Buff

Debuff

Ability tags

00:00:01

[Music]

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before we continue with the video if you

00:00:07

like what i'm doing here on this channel

00:00:09

please consider subscribing it helps the

00:00:11

channel a lot

00:00:12

anyway let's get back to the video

00:00:15

welcome back to my create on rpg series

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in this episode we will be enhancing our

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abilities further by having it be able

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to add properties uh to your character

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just like we have for status effects for

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example

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so let's jump into it we'll open up our

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blueprint for ability base

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and what we want to do here is

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essentially

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make use of

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our pre-step now

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so first off let's do this we'll um

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actually let's organize this a little

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bit we'll take the use required tag here

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and put it in a category called

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tag functionality

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and then we'll do the same with the use

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prevention tags and put it in there as

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well

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and then we'll create a variable which

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we will be calling

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uh use

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adding

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types is okay name i think and we want

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this one

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to be

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off the type gameplay tag

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not container gaming play tag

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and we want it to be an array

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now

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this is essentially going to be

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something that

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gives if your ability gives you a

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property while it is being used let's

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say

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maybe you have a dodge

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you could make an ability for a dodge

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and that ability is supposed to give you

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invulnerability frames

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uh you can essentially set up that it

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gives you an invulnerability tag while

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you're doing the dodge and then remove

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the tag afterwards and then your dodge

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is actually working like in dark souls

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for example

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so

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it's pretty easy what we're going to be

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doing we're going to be getting our use

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adding tags over here

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and we're going to be looping on them

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in our usability preset is where we want

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to be adding this so it's

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something we add just before we start

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using the ability and then we want to

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remove it when we're done using the

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ability

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so the usability is going to run from

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when we have completed adding all of

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these them

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and these we want to encapsulate in sort

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of a function so we'll create a function

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for this we'll call this

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add ability

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tags

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or let's call it tag since it's one

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since we're looping on it essentially

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and this one will be taking a gameplay

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tag then

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as a type because that's what we're

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looking on

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and call this ability tag

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like so

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and

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what we want to do now is we want to

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have our owner

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the one that's using the ability we want

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to get its

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component by cloth

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we want to get the gameplay

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tags component

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we want to make sure that it is valid

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because we're going to try and interact

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with it

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if it is valid we want to get this and

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say add a tag

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and that's it and then we just need to

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hook up the tag that we want to add

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and then we create an origin as well

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because that's something that we

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sometimes make use of right

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so the the actor in this case will be

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the owner that we have

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and the controller can get the

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instigator

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controller

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send that out there

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now we are actually also let's be proper

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here and have a return here because it's

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clean and nice

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uh like so so now we have the ability to

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add a tag so actually let's go back to

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our loop again and we'll just call the

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add ability tag

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like so and hook in the array element in

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there

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so now when we get to the point of we're

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attempting to use an ability we try to

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use it if we're able to use it we call

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the pre-step

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the pre-step will be done going through

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all the adding tags

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and it will be looping through them

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adding it to the component if we have

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one and then once it's done with that it

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will use stability using the ability

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will then go through and do all of the

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animation stuff in this case and then

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which we'll call end ability

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and ability is a step where we actually

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want to undo whatever we have done then

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so if we added a tag

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and we wanted to remove that tag so

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we'll just

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loop on this again

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loop

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like so

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and then we want to do the same thing we

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did before but in reverse so we will

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duplicate this and say instead of add

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ability tag we call it

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removability tag

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like so

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and inside of here we want instead of

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adding the tag we want to remove

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the type right

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remove that

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so hook it up if it's valid

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pick up the origin hook up the tag that

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we're sending

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and we're pretty happy like that

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there we go okay so

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going back again we have our

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removability tag now we can call

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we will hook in the ability like so

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and that's done

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so let's see how this works then so we

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have some debug information that writes

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in the top left if we are adding and

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removing tags right so we can just go to

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our

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ability slash which is currently our

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sort of debug ability at this

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point in time

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and we have the use adding tags over

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here

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so we can say here for example that we

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were going to add a tag adding a tag

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called

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let's create a new tag

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let's call it

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let's see here gameplay tags and let's

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say

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um

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state dot

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attacking or something like that

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okay

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post that down we go to our slash

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we say we want to add the state

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for attacking when we are actually doing

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an attack

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that makes sense right

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so if we press f11 we press e you can

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see in the top left we get on a tag we

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get an attacking tag we get the

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attacking tag removed that's the what

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the number represents like one and then

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zero

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um so now we can see that we're actually

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getting

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uh that happening

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however you can see that for example i

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can spam my

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e key a lot and it will run

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multiple times or it will like start

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adding multiple tags and stuff like that

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and there's no interruption

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one simple way to use something like

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this is to have something like

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um our ability slash here we can say

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it's

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my blind

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where are our

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where are our tags

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and the required text prevention tags

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all right we put them in a category

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right yeah so type functionality that

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maybe wasn't the most brilliant thing

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ever but yeah so let's do this using

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adding tags we put this in the same

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category

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as tag functionality so at least

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these things are all grouped

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that makes sense now we can say that

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for example prevention tag here we can

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say that the state of attacking it would

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be preventing

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this ability from being used which means

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that

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if i now spam the e key it doesn't

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really matter because if i put the

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attacking tag on once i won't be able to

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initiate the

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ability until that tag is removed

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essentially so if you want to have a

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game where

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you are committed once you've used an

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ability then that's one way to go about

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having

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that sorted out in that manner

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while we are enhancing the base ability

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let's just hook in some other

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functionality as well

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we do have the functionality here of can

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usability which is

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something you could overload but you

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might want to have it like a little bit

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more granular so what we could do is we

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could also add

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[Music]

00:09:07

another

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function here which

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checks if you're allowed to use an

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ability

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so you could do something like

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um

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final use

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allowance

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thick

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so essentially what's happening here is

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when we check if we can use an ability

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we have the ability to checks against if

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we have prevention tags if we're

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required tags but you might want to have

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something else also checking if you have

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enough mana or enough stamina or

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whatever

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and in that case

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you

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may want to have that

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be the one that actually is overloaded

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or or overwritten in the children so you

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like don't touch any of these and you

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don't want to touch they can use ability

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you can just uh oh sorry i tried out

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this one

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i mean this one

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you can just use this ability to have as

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your last check if you're allowed to use

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an ability right

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so just add some functionality here we

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will

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make sure that it sends out an output of

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a boolean

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important here make sure that this one

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is true

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because

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in the default here in the base class we

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won't actually be using this this is

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just for overloading in other children

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so we call this

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allowed reuse

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which means that it will always be true

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in unless you actually overload this in

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in some functionality later on

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uh and if it is true we want to continue

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and check the other things if it is not

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true

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we just go out here and say we can't use

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stability

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this this way we have some flexibility

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for our

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children

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later down the line essentially

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yeah i think that might be a good place

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to stop for now so let's save everything

00:11:01

and i hope to see in the next episode

00:11:04

hopefully found this video helpful if

00:11:06

you liked the video leave a like if you

00:11:08

did not like it leave a dislike leave

00:11:10

any suggestions or comments you have

00:11:11

down below subscribe and share this

00:11:13

video if you want to see more like it in

00:11:14

the future that is all for now keep on

00:11:17

learning take care

00:11:19

[Music]

00:11:29

you

Description:

This is the series to watch if you want to create a role playing game in Unreal engine with rich, deep RPG systems and advanced functionality. In this episode we will be creating ability tags to allow for deep customizing of functionality. Beginner tutorial series: https://www.youtube.com/playlist?list=PLNBX4kIrA68nyGfIKgyizftebllhKc4ZX Creating game systems: https://www.youtube.com/playlist?list=PLNBX4kIrA68lvWElEzhRaCOtCjZ7L05xv Join the Discord server here: https://discord.com/invite/zBeebU7uv3 Support the work of LeafBranchGames on Patreon here: https://www.patreon.com/LeafBranchGames

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