Is it possible to define possible args?

Help and Feedback Scripting Support
#1

I have a module script that has a function, and to use it, you need to add the character and effect to add.

local cd = script.Parent.ClickDetector
local effectMgr = require(game.ReplicatedStorage.EffectManager)

cd.MouseClick:Connect(function(plr)
	local char = plr.Character
	effectMgr.AddEffect(char, Bleeding)
end)

The test script ^

local effectFolder = "Effects"
local effectPreset = "Preset"
local effectEvnt = game.ReplicatedStorage.Effect


function module.AddEffect(character,effect)
	local effectsFold = character:WaitForChild(effectFolder)
	effectsFold:FindFirstChild(effect).Value = true
end

function module.RemoveEffect(character,effect)
	local effectsFold = character:WaitForChild(effectFolder)
	effectsFold:FindFirstChild(effect).Value = false
end

function module.PresetAdd(character,presetEffect)
	local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))
	preseteffectsFold:FindFirstChild(presetEffect).Value = true
end	

function module.PresetRemove(character,presetEffect)
	local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))
	preseteffectsFold:FindFirstChild(presetEffect).Value = false
end

the module script ^

I want to know how to make a sorta like, dropdown menu for all the possible effects (user-made effects too).

#2

Types are your way.

type Effect = "Bleeding" | "OtherEffect" | "Effect"
local function SomeFunction(effect: Effect)
--[[...]]
end
1 Like
#3

I don’t think that’s how I want it to work, or I probably don’t understand it.
I want the user to be able to specify one of the effects in a different script, but I think the function parameters return the entire type.

#4

Whatever the case may be, this is the module:

local module = {}
--[THIS MODULE IS ONLY COMPATIBLE WITH EFFECT SCRIPTS THAT USE .CHANGED EVENTS TO MONTOR ENABLING/DISABLING EFFECTS.]--
-- The effect name must be exactly the same.


local effectFolder = "Effects"
local effectPreset = "Preset"
local effectEvnt = game.ReplicatedStorage.Effect

type effct = "Bleeding" | "Burning" | "Freeze" | "Poison"

function module.AddEffect(character,effect: effct)
	local effectsFold = character:WaitForChild(effectFolder)
	effectsFold:FindFirstChild(effect).Value = true
end

function module.RemoveEffect(character,effect)
	local effectsFold = character:WaitForChild(effectFolder)
	effectsFold:FindFirstChild(effect).Value = false
end

function module.PresetAdd(character,presetEffect)
	local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))
	preseteffectsFold:FindFirstChild(presetEffect).Value = true
end	

function module.PresetRemove(character,presetEffect)
	local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))
	preseteffectsFold:FindFirstChild(presetEffect).Value = false
end

return module

test script:

local cd = script.Parent.ClickDetector
local effectMgr = require(game.ReplicatedStorage.EffectManager)

cd.MouseClick:Connect(function(plr)
	local char = plr.Character
	effectMgr.AddEffect(char, "Bleeding")
end)

I get this error once clicking the part:

ReplicatedStorage.EffectManager:14: attempt to index nil with ‘Value’

#6

Does the instances the EffectManager try to access exist?
does effectsFold.Bleeding exist?

if not then change it to this

local module = {}
--[THIS MODULE IS ONLY COMPATIBLE WITH EFFECT SCRIPTS THAT USE .CHANGED EVENTS TO MONTOR ENABLING/DISABLING EFFECTS.]--
-- The effect name must be exactly the same.


local effectFolder = "Effects"
local effectPreset = "Preset"
local effectEvnt = game.ReplicatedStorage.Effect

local Effect = { -- table so then user generated effects can be added too
    "Bleeding",
    "Burning",
    "Freeze",
    "Poison"
}

function module.Init() 
      local effectsFold = character:WaitForChild(effectFolder)
      for i,v in Effect do 
           local boolValue = Instance.new("BoolValue")
           boolValue.Parent = effectsFold
           boolValue.Name = v
      end
end

function module.AddEffect(character,effect:)
	local effectsFold = character:WaitForChild(effectFolder)
	effectsFold:FindFirstChild(effect).Value = true
end

function module.RemoveEffect(character,effect)
	local effectsFold = character:WaitForChild(effectFolder)
	effectsFold:FindFirstChild(effect).Value = false
end

function module.PresetAdd(character,presetEffect)
	local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))
	preseteffectsFold:FindFirstChild(presetEffect).Value = true
end	

function module.PresetRemove(character,presetEffect)
	local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))
	preseteffectsFold:FindFirstChild(presetEffect).Value = false
end

return module
1 Like
#7

They do exist. (key key key key)

#8

kkk

local module = {}
--[THIS MODULE IS ONLY COMPATIBLE WITH EFFECT SCRIPTS THAT USE .CHANGED EVENTS TO MONTOR ENABLING/DISABLING EFFECTS.]--
-- The effect name must be exactly the same.


local effectFolder = "Effects"
local effectPreset = "Preset"
local effectEvnt = game.ReplicatedStorage.Effect


local Effect = { -- table so then user generated effects can be added too
    "Bleeding",
    "Burning",
    "Freeze",
    "Poison"
}


local effectsFold = character:WaitForChild(effectFolder)

function module.AddEffect(character,effect)
	effectsFold:WaitForChild(effect).Value = true
end

function module.RemoveEffect(character,effect)
	effectsFold:WaitForChild(effect).Value = false
end


local preseteffectsFold = character:WaitForChild(effectFolder:WaitForChild(effectPreset))

function module.PresetAdd(character,presetEffect)
	preseteffectsFold:WaitForChild(presetEffect).Value = true
end	

function module.PresetRemove(character,presetEffect)
	preseteffectsFold:WaitForChild(presetEffect).Value = false
end

return module
1 Like
#9

ReplicatedStorage.EffectManager:14: attempt to index nil with ‘Value’
means that effectsFold:FindFirstChild(effect) is returning nil, which is only if the item doesn’t exist, so possibly do a WaitForChild?

1 Like
#10

I see that there is an Effect table but it’s not being used anywhere?

#11

it would be used once custom ones are made,

1 Like
#12

I’ve fixed my own issue. Thank you for the help, however.

#13

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