so just saying GameObject? or would it

[radiant imp]

enemyLoop script handles all the list stuff, enemy does nothing but pass itself

@oblique hull

[oblique hull]

alright, so then just GameObject?

[radiant imp]

well thats what you declared your list as it seems

so yea

[oblique hull]

alright so right now its public void enemydetect(GameObject)

[radiant imp]

you wrote it like this then it gives you underline red

https://www.w3schools.com/cs/cs_method_parameters.php

[oblique hull]

yeah i saw that, so i changed it to EnemyDetect(GameObject)

[radiant imp]

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/keywords/method-parameters

[oblique hull]

its still red right now though

[radiant imp]

did you see the examples on how to declare method parameters?

the structure is always the same when you declare in c#

type name

[oblique hull]

wait, so what would it need to be in this case? since its not a string for this? GameObject and then a name for it like enemy for example?

[radiant imp]

yea

[oblique hull]

okay i'll do that

its still giving a red underline for EnemyDetect so i'm not sure

[radiant imp]

show how you wrote it

[radiant imp]

well its red because you didnt finish writing it..I don't understand did you not see the examples of how the other methods are written

this goes in enemyLoop though

or whatever has the list

[oblique hull]

oh i have it

i added the brackets okay

and i'll move it to the enemyLoop now

okay i have it in enemyLoop now

[radiant imp]

write the logic inside, of what you needed earlier

remove from list, check list count

[oblique hull]

that would be similar enough from that one thing of code i used right?

[radiant imp]

minus the loop

[oblique hull]

right

[radiant imp]

but RemoveAt works with indexes

right now you have enemy

which is of type GameObject

[oblique hull]

i see

so would i need to make it into an index? or is there something else i can use?

[radiant imp]

yup just use the List other method of removal

https://learn.microsoft.com/en-us/dotnet/api/system.collections.generic.list-1.remove?view=net-8.0

[oblique hull]

ah i see

would it still be if(enemyList[i] == null) in this case?

just wondering since it doesnt have the for loop

[radiant imp]

why would you need that or index at all

I mentioned before Lists can shrink

or expand, but this case shrink only

[oblique hull]

so i would do something like

if(enemy = null)

and then i would use the List.Remove?

[radiant imp]

break down each step, do one at time start from top to bottom

the top is you are getting enemy from death,

now what next

[oblique hull]

time start? huh? im not sure how to go about removing from the list I don't know what i would need happen for that, or well, how to write it i guess?

[radiant imp]

its not even a code thing, you have to like think what you want happening

code comes after you logic your way through it

[oblique hull]

at this point we have all of the enemies in the list

[radiant imp]

if you think too much about its a code problem you wont ever solve it.

[oblique hull]

so, i would need to find a way for it to find out whether or not its destroyed?

[radiant imp]

if its coming through that method the assumption is , its already ondeath event

think your goal here is your tracking enemies amount..

[oblique hull]

so seeing if one of the enemies doesn't exist anymore right??

since when they're destroyed they wouldn't still be on the list?

[radiant imp]

no because destroying a gameobject in the list would only make it null

it would still keep its spot in the list

as null

it would be cumbersome to check the same amount of the list each time if all are null

easier to keep track of the Count , simple integer

[oblique hull]

so check if something from the lists count is null

and if it is then remove it?

[radiant imp]

so Remove method removes it from list completely

[radiant imp]

lists count cannot be null..

[oblique hull]

or well,

[radiant imp]

its a simple integer

[oblique hull]

would the count go down if something in the list is null?

[radiant imp]

nope

thats why an array would not be useful

if you had 20 enemies you would have to loop 20 times each time to check if they're all null slots

that would be inefficent

[oblique hull]

okay so, what do we need to check then?

[radiant imp]

huh?

the same exact thing you were checking earlier..

[oblique hull]

well yeah

[radiant imp]

is none of it making sense at all?

[oblique hull]

i understand that part

if its 0 then it does that, i understand that

but im not sure how to remove something from the list when it becomes null?

[radiant imp]

and how do you think it would get to 0

[oblique hull]

by removing it when it becomes null? but im not sure how to do that

[radiant imp]

that was the whole point of this an hour ago..

[oblique hull]

yes i know, and you showed the remove part, but i dont know what if statement to add for it, i dont know how to say
if a gameobject in the list becomes null, then remove it from the list

i understand that once it is empty then i can have if(enemyList.Count == 0 then invoke the function and such

[radiant imp]

enemy parameter is the enemy about to be removed from game

the gameObject

its one simple line, start there

[oblique hull]

how does it know that it's about to be removed? or is that for the enemyManager part?

so i start with enemy inside of the method right

[radiant imp]

enemyManager is irrelevant right now since its empty

[oblique hull]

righrt

[radiant imp]

like baking a cake , one ingredient at a time

[oblique hull]

but i dont know how to start?

[radiant imp]

wdym

enemy is your GameObject

to be removed from the list

[oblique hull]

like this is what i have right now, i dont know where to start the actual code of it

[radiant imp]

you have the remove it from the list

[oblique hull]

okay, so i just put List.Remove?

[radiant imp]

same as enemyList had method of Count for count

[oblique hull]

so i would put

Remove(enemy) or so?

well it isnt working i assume?

i mean its red

the thing you said was List.Remove

[radiant imp]

List has a method called Remove yes

just like it has a property for Count

[oblique hull]

but i'm not sure what the <t> part is?

so i would need to put

List.Remove so far, but im not sure what else i add onto this?

[radiant imp]

List is the Type

you already stored that

[oblique hull]

so i would put

enemyList.Remove?

[radiant imp]

right

[oblique hull]

ok

enemyList.Remove(enemy)?

i ahve it in and nothing has red underline

[radiant imp]

it really is this simple

[oblique hull]

so then

after that

[radiant imp]

ok so the next part you already have

think of it in simple words terms

like actions,

[oblique hull]

if(enemyList.Count == 0)
{ the loop function here}

[radiant imp]

enemy removed from list

right

[oblique hull]

alright

so i'll put that in

so i have

this

how exactly does enemy know its the one being destroyed? or is that something else that needs to be added?

just added a ;

to the enemyList.Remove line

[radiant imp]

well how do you currently destroy enemy

[oblique hull]

in the script for the laser

this

poorly cropped it

but uh

[radiant imp]

enemy needs a script

so it can call EnemyDetect

[oblique hull]

i have the enemyManager script now

or

well here's how i have the enemies set up

[radiant imp]

if you wanna put that as the script go ahead

as long as you are aware of what script is what

[oblique hull]

its a bit messy i guess but, i have one object that has all of the prefabs as children of it

so i think it would be fine if i put the enemyLoop script into the enemies object? or would i need to put it into the prefab?

[radiant imp]

enemyLoop should be in the scene

[oblique hull]

right now i have enemyLoop on the background, i wasnt sure where else to put it

[radiant imp]

how else did you drag them into the list 🤔

did you not prefill the list

[oblique hull]

i did

but im thinking instead of having it on the background, i should put it into the overall enemies object, and then enemyManager maybe into the prefab of the enemy? im not sure

uhh overall i dont know if it matters exactly where it is, but i have the enemyManager script? so im not sure how to go about having 'enemy' be seen as one of the enemies being destroyed

i guess that's the only issue i have right now is that the 'enemy' gameobject, i'm not sure how it is being seen as an enemy that is being destroyed?

[radiant imp]

can you just screenshot the hierarchy i have no idea what you mean by "on the background"

[oblique hull]

oh sorry

so i have background, which is just an image on the background of the game
enemies has all of the prefabs loaded in already

and i dont have individual names so it probably looks really ugly, but i have the script on the background object, with the list already filled out

[radiant imp]

so put enemyLoop on a gameobject called enemyloop

[oblique hull]

alright, i can do that

but the main thing im wondering about is how to have the enemy gameobject be seen as an enemy thats destroyed?

[radiant imp]

each enemy has to have script on it, and instead of doing Destroy(collision.gameObject) on laser call a Method inside enemy script that removes from list(already have this in enemyLoop), then runs Destroy on itself

[oblique hull]

but how would i have it know to do it when the laser hits it?

[radiant imp]

because when you Hit it you have that reference

[oblique hull]

and also, so i still have enemyManager, should i put enemyManager on all of the prefabs enemies?

[radiant imp]

enemyManager is irrelevant right now

[oblique hull]

but the enemies need a script dont they?

so i can just use that?

[radiant imp]

is that the script you want to use

sure

[oblique hull]

okay then, i'll put that into all of the prefabs

and then

im not sure how to make it be known if the laser has hit them outside of the laser's script?

[radiant imp]

wdym outside the laser script ?

[oblique hull]

i need to have this script in all of the enemies say to remove itself from the list

and then destroy itself

but it needs something to happen for it to run that

which would be having the laser colliding with it?

[radiant imp]

yes the laser calls the whole chain reaction

[oblique hull]

and thats in the laser's script

[radiant imp]

the trigger you showed me yes

instead of Destroy method which instantly destroys it

[oblique hull]

how would i go about having that occurrence triggering something happening in the enemies script

[radiant imp]

you just call the method in the trigger

[oblique hull]

wait

[radiant imp]

you would have to get that script from the gameobject

with GetComponent

[oblique hull]

okay so

in the enemy script

i need to GetComponent the laser's script

right?

[radiant imp]

otherway around

[oblique hull]

oh

okay

i need to GetComponent the enemy's script

[radiant imp]

yes

[oblique hull]

and then the enemy's script has the method for removing the enemy from the list and destroying it

and i need to call that method instead of just destroying it right

[radiant imp]

right

[oblique hull]

okay let me try and set that up then

[radiant imp]

the removing from list part you already did inside enemyLoop

just need to call that from enemy Script

[oblique hull]

wait huh

so i need to

wait

so laserscript needs to getcomponent the enemy's script

[radiant imp]

as i said earlier, all ur doing is references and calling methods back n forth

[radiant imp]

well yeah to call the self destroy/ remove from list method in enemy script

[oblique hull]

enemy's script would need to getcomponent the enemyLoop script

and then the enemy's script would call the EnemyDetect method, and then destroy itself

[radiant imp]

yeah but GetComponent only works on the gameobject itself or another gameobject you already have refernece to

[oblique hull]

wdym? uhh

well the laser prefab has the laser's script

and then the empty object for the loop has enemyLoop right now

[radiant imp]

laser already has enemy's gameObject

so you can do GetComponent on it easily

enemy script needs to store enemLoop inside a variable

[oblique hull]

well it has the collision.gameObject

[radiant imp]

right thats the gameObject which can do GetComponent<T>

[oblique hull]

im not sure how to write that out in this though? im not sure where to put it either

[radiant imp]

you mean get component ?

https://docs.unity3d.com/ScriptReference/GameObject.GetComponent.html

[oblique hull]

i need to sleep soon im just trying to get this figured out its already 4am uhhh

so would it be

GetComponent<enemyLoop>() ?

[radiant imp]

wait you're starting from the beginning which is the laser

[oblique hull]

i dont know what i need to connect with what

on the laser script

i need to connect it to the enemy's script right?

[radiant imp]

laser -> enemy -> enemyLoop

so collision.gameObject is your starting point

from the laser

[oblique hull]

right

so where should i put the GetComponent part here?

should i just put it right there? or earlier in the code?

[radiant imp]

GetComponent from the object you hit

[oblique hull]

and i would put GetComponent<enemyManager>() ?

in the if statement for the collision

[radiant imp]

you can directly access the method

[oblique hull]

how?

or wait

[radiant imp]

. operator

[oblique hull]

would it be GetComponent<enemyManager>(method here?)

or

oh

GetComponent<enemyManager>() . methodname

[radiant imp]

right

but GetComponent on the enemy's gameobject

[oblique hull]

ok so

what does that mean?

where would i put that?

[radiant imp]

if you just write GetComponent it will try to look for it on the laser script

[oblique hull]

or how would i write that?

how do i make it look for the enemy's gameobject?

[radiant imp]

do getcomponent on the enemys gameobject

[oblique hull]

how do i do that?

do i write that in the laser script?

[oblique hull]

okay

collision.gameObject and then where do i put the getcomponent?

do i attach it onto that?

i dont really understand how to write that sort of stuff

[radiant imp]

its all a bunch of .

its not that hard

think like a big chain

of pieces of legos that fit

[oblique hull]

i mean its probably not but i have no idea what . is, we didnt learn any of this coding stuff in that class

so its like

collision.gameObject . GetComponent<enemyManager>() . methodname??

[radiant imp]

pretty much

[oblique hull]

okay so i'll put that

[radiant imp]

except you have to make that methodname ofc or it wont exist

[oblique hull]

in place of destroying the collision

right

so im going to make a method in the enemyManager script now

and i'll just call it DeleteEnemy

[radiant imp]

yea

inside enemy script you only need reference to enemyLoop

store it in a variable same as usual

[oblique hull]

wait

im not sure though

this isnt working

its all red underline

[radiant imp]

show

[oblique hull]

oh wait

i know whats wrong i need to put the script onto the prefab now

[radiant imp]

no

scripts doesnt know anything about prefabs

show whats red

[oblique hull]

the entire line

[radiant imp]

why are you putting whitespaces 🤔

[oblique hull]

i fixed it

i wasnt sure if i needed to or not

[radiant imp]

also DeleteEnemy is a method

[oblique hull]

yes?

[radiant imp]

methods have () 's

[oblique hull]

oh right

okay

now the only issue is the enemyManager part

oh

wait

i know whats wrong with it

okay we're good now

i had changed the name earlier

and the class and stuff

and i put Manager

when its now enemyScript

okay

that all works

so now

[radiant imp]

as long as filenames match classes

[oblique hull]

it does

so now in enemyScript

i need to

[radiant imp]

all its left is a reference from enemy to enemyLoop

[oblique hull]

how do i go about doing that?

its still a GetComponent?

or no?

[radiant imp]

since you dont have the gameobject directly no

you can use something like this
https://docs.unity3d.com/ScriptReference/Object.FindFirstObjectByType.html

then call it in awake

the second example is a bit better..

[oblique hull]

i only see one example?

oh

i see what you mean

the second part of it

[radiant imp]

yea..

[oblique hull]

so i would need to

enemy = FindFirstObjectByType<>()?

but im not sure

[radiant imp]

just don't store it in a local variable, it must be a class level variable

[oblique hull]

huh?

[radiant imp]

first declare the variable

[oblique hull]

oh

right so i'd put that outside of any methods

just in the class

[radiant imp]

yes

[oblique hull]

okay

[radiant imp]

not the method just the declaring of the reference

[oblique hull]

so would it be called enemy?

or something else

[radiant imp]

name it somethin that makes sense lol

[oblique hull]

alright uhh

deletedEnemy or so?

idk

since this is processing that it is deleted

[radiant imp]

these are horrid names, they should just be what they are

the type is enemyLoop

[oblique hull]

type?

so lets say i go with deletedEnemy idk

i would put

deletedEnemy = FindFirstObjectByType<enemyLoop>() ?

[radiant imp]

but did you declare deletedEnemy first

[oblique hull]

would it be declared a gameobject?

[radiant imp]

no

[oblique hull]

what would it be declared as?

[radiant imp]

its type

the class is the type

[oblique hull]

so like

public enemyScript deletedEnemy

or something like that?

and then

[oblique hull]

this?

is that how it would work?

[radiant imp]

wdym how would it work

[oblique hull]

is that how it should be

[radiant imp]

pretty much

[oblique hull]

public enemyScript deletedEnemy

okay

so i'll put that in

wait

now it has red underlines

[radiant imp]

because i said that part goes in awake?

[oblique hull]

okay

so put it in start?

[radiant imp]

Awake

https://docs.unity3d.com/ScriptReference/MonoBehaviour.Awake.html

[oblique hull]

do i need to make that?

okay

i'll do that

now its saying it cant convert enemyLoop to enemyScript?

[radiant imp]

which version of unity are you on?

also you forgot ;

[oblique hull]

2021.3.34f1

i put ; now too uhh

[radiant imp]

oh

you can use this instead then
https://docs.unity3d.com/ScriptReference/Object.FindObjectOfType.html

same exact thing, slightly different wording

[oblique hull]

it still says the same thing?

[radiant imp]

because deletedEnemy is the wrong type

you wrote enemyScript

[oblique hull]

oh

okay its fine now

so then

now i just write the deleteEnemy method right?

[radiant imp]

enemyDetect

you have to call EnemyDetect

[oblique hull]

oh

[radiant imp]

but yeah you need it inside delete method

[oblique hull]

right oaky

[radiant imp]

it should pretty much be working after that

[oblique hull]

how should i call it?

would i just put uhh

enemyloop.EnemyDetect ?

do i need to declare enemy in this?

[radiant imp]

pretty much

[oblique hull]

because id need to have it be

[radiant imp]

pass itself

[oblique hull]

enemyloop.EnemyDetect(enemy)

[radiant imp]

what is enemy

[oblique hull]

which i tried but it said enemy didnt exist

its the gameobject in EnemyDetect ?

[radiant imp]

it expect gameobject

so pass it gameobject

[oblique hull]

enemyloop.EnemyDetect(gameObject enemy)

like that?

or

[radiant imp]

what is enemy

[oblique hull]

the gameobject in EnemyDetect isnt it?

wdym by that

[radiant imp]

you don't need variable names when passing parameters..

[oblique hull]

so when what would i put?

putting enemy by itself doesnt work because it doesnt exist

[radiant imp]

the only thing the underline is complaining about

[oblique hull]

so do i need to declare enemy?

[radiant imp]

gameObject is the enemy

[oblique hull]

so i would put gameObject instead

[radiant imp]

ye

[oblique hull]

but now it says

[radiant imp]

what does error say

[oblique hull]

object reference is required for non-static field, method, or property

[radiant imp]

is enemyloop not the variable ?

what did you do

[oblique hull]

which variable???

enemyloop is the script

[radiant imp]

ugh don't use lowercase for classes

shits confusing as hell

classes should be capitalized

[oblique hull]

yes i realized that but this is what i have in that

so im not sure what variable you mean?

[radiant imp]

what did you name the class..

[oblique hull]

enemyloop

its the same as the script's filename

[radiant imp]

the method is irrelevant right now

then you should not be using the class directly in enemy script..

[oblique hull]

then what do i put there?

[radiant imp]

as i already said, store it in a variable..

[oblique hull]

store what in a variable??

[radiant imp]

wdym store what

[oblique hull]

you said store 'it' in a variable

what is 'it'

[radiant imp]

enemyLoop

[oblique hull]

enemyLoop is the script

[radiant imp]

you named it enemyloop

[radiant imp]

why did you change it

[oblique hull]

enemyloop is the script

[radiant imp]

from enemyLoop

[oblique hull]

i didnt change it

its always been enemyloop

the filename is enemyloop, the class name is enemyloop

always has been

[oblique hull]

are you referring to the deletedEnemy part?

[radiant imp]

ugh alr . always capitalize your classes/filename then

enemyloop. store it in a variable

[oblique hull]

wdym by that

is that not what i did by saying

[radiant imp]

you called deletedEnemy ??

[oblique hull]

no?

[radiant imp]

why are you using enemyloop.EnemyDetect then

[oblique hull]

thats what i had said before i dont know

wdym called?

wait

yeah? i dont know

so i need to put

[radiant imp]

how do you not know

[oblique hull]

i showed you the code

[radiant imp]

the whole point of doing this

is to use enemyloop through deletedEnemy

if thats where you're putting the reference

[oblique hull]

im barely awake right now im just tryin gto get this last bit of code through

so should it be

deletedEnemy.EnemyDetect?

since thats the varaible i have with the enemyloop find object of type?

ok there it goes

so that calls enemy detect

so now i just need to put destroy gameobject right?

[radiant imp]

pretty much

[oblique hull]

looks fine now so

it should be fine to test yes?

[radiant imp]

should be

[oblique hull]

ok

it works

[radiant imp]

you can check inspector as well if the list shrinks

[oblique hull]

we're good then now

it restarted and everything

[radiant imp]

yes its very simple stuff to do

[oblique hull]

when you understand this stuff

[radiant imp]

well the main thing to learn is the basics

[oblique hull]

maybe if my class actually taught coding instead of just the engine it'd be nice but hmm

but its fine now

[radiant imp]

coding is important too , but logic is far more useful

try to break down into smaller easier to find bits of problems

[oblique hull]

im just not very smart with this sort of stuff, kinda realized that way earlier this semester loll but ive made it through the class so far

but thank you

[radiant imp]

you can see each step led to this result

np

[oblique hull]

yeah

[radiant imp]

once you get down references, it should become easier with time

goodluk