Trail to follow and only attach to morph

Help and Feedback Scripting Support
#1

So I am trying to create a game were you have to select a morph and each morph would give you a colored line that colored morph. It works on the normal character but I have now been trying to only attach it to the Morph itself that when you become that morph it would work with that specific morph.

This is the code I have:

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local function createRedPart(position)
    local part = Instance.new("Part")
    part.Size = Vector3.new(1, 0.2, 1) -- Thin part for smooth texture
    part.Color = Color3.new(1, 0, 0) -- Red color
    part.Anchored = true
    part.CanCollide = false
    part.Material = Enum.Material.SmoothPlastic -- Smooth texture
    part.Position = position - Vector3.new(0, 3, 0) -- Position below the legs
    part.Parent = workspace
end

local function onCharacterAdded(character)
    local humanoidRootPart = character:WaitForChild("HumanoidRootPart")
    local lastPosition = humanoidRootPart.Position

    RunService.RenderStepped:Connect(function()
        local currentPosition = humanoidRootPart.Position
        if (currentPosition - lastPosition).magnitude > 1 then
            createRedPart(lastPosition)
            lastPosition = currentPosition
        end
    end)
end

local function onPlayerAdded(player)
    local character = player.Character or player.CharacterAdded:Wait()
    onCharacterAdded(character)
    player.CharacterAdded:Connect(onCharacterAdded)
end

-- Bind the logic to incoming players
Players.PlayerAdded:Connect(onPlayerAdded)

-- Iterate through all existing players and attach the logic
for _, player in Players:GetPlayers() do
    onPlayerAdded(player)
end

I think my main problem is cause it is set to StarterPlayer and not the specific model but I do not know how to set it to a specific model even when you morph into it. I am a beginner scripter so I have been trying my best but do not know what to do from here.

The video shows an example as to what I am talking about.
robloxapp-20240831-1542323.wmv (2.2 MB)

1 Like
#2

could you provide the morph model you are using in your game?

#3

i modified your script to do what i think you were trying to achieve:

local Players = game:GetService("Players")
local RunService = game:GetService("RunService")

local function createRedPart(position)
	local part = Instance.new("Part")
	part.Size = Vector3.new(1, 0.2, 1) -- Thin part for smooth texture
	part.Color = Color3.new(1, 0, 0) -- Red color
	part.Anchored = true
	part.CanCollide = false
	part.Material = Enum.Material.SmoothPlastic -- Smooth texture
	part.Position = position
	part.Parent = workspace
end

local function onCharacterAdded(character)
	local humanoidRootPart = character:WaitForChild("HumanoidRootPart")
	local lastPosition = humanoidRootPart.Position

	RunService.RenderStepped:Connect(function()		
		local rayOrigin = humanoidRootPart.Position
		local rayDirection = Vector3.new(0, -4, 0) -- downward direction from humanoidrootpart position
		
		local raycastParams = RaycastParams.new()
		raycastParams.FilterDescendantsInstances = {character:GetDescendants()} -- filter out character limbs
		raycastParams.FilterType = Enum.RaycastFilterType.Exclude

		local raycastResult = workspace:Raycast(rayOrigin, rayDirection, raycastParams) -- create raycast
		
		if raycastResult then -- if ray makes contact, create red part
			local currentPosition = raycastResult.Position -- position where ray makes contact with ground
			
			if (currentPosition - lastPosition).magnitude > 1 then
				createRedPart(lastPosition)
				lastPosition = currentPosition
			end
		end
	end)
end

local function onPlayerAdded(player)
	local character = player.Character or player.CharacterAdded:Wait()
	onCharacterAdded(character)
	player.CharacterAdded:Connect(onCharacterAdded)
end

-- Bind the logic to incoming players
Players.PlayerAdded:Connect(onPlayerAdded)

-- Iterate through all existing players and attach the logic
for _, player in Players:GetPlayers() do
	onPlayerAdded(player)
end

instead of creating a red part a few studs underneath the humanoidrootpart, i created a raycast that makes contact with the ground and then creates a red part at that contact position. i assume you wanted to create red parts only when the player is touching the ground but this can be modified to create red parts without contact too.

#4

There is an instance ‘Trail’ at your disposal, so you do not need to constantly create red parts
It does need 2 attachments tho so place them in your morphs where you want the trail to stretch from. The docs on it here if you need more help.