UpVector cannot be assigned to

Help and Feedback Scripting Support
#21

Also, you were right about the addition. I’m completely rusty on ROBLOX CFrames.

This is what happens when you indulge into many different engines.

#22

It’s just this:

local runService = game:GetService("RunService")
local point = script.Parent
local cframeAmount = point.CFrame
local random = Random.new()
runService.Heartbeat:Connect(function()
	local Outoffsetno = random:NextNumber(0, 2)
	local chooseOperation = math.random(1, 2)
	if chooseOperation == 1 then
		point.CFrame += cframeAmount.UpVector * Outoffsetno
	else
		point.CFrame -= cframeAmount.UpVector * Outoffsetno
	end
	task.wait(random:NextNumber(1, 2))
end)

This code is meant to be in a disabled script, which is cloned and parented to a point and enabled.

#23

I also need the code that creates the points themselves.

#24

Alright, it’s just a module which I’m requiring to create the points, but anyways:

The module 
local lightningmodule = {}
local random = Random.new()
local defaultColor = Color3.fromRGB(0, 127, 255)
local movePointScript = script:WaitForChild("MoveScript")
local function lightningPointCreate(amountOfPoints : number, cframeAmount : CFrame, color : Color3, isStraight : bool, parent : Instance, start1 : Instance)
	if color == nil then
		color = defaultColor
		if isStraight == nil then
			isStraight = true
		end
	end
	for i = 1, math.floor(amountOfPoints) do
		local point = Instance.new("Part")
		point.Size = Vector3.new(1, 1, 1)
		point.Anchored = true
		point.CFrame = cframeAmount
		point.Color = color
		point.Transparency = 0.75
		point.CanCollide = false
		point.Parent = parent
		if isStraight == false then
			local scrip = movePointScript:Clone()
			scrip.Disabled = false
			scrip.Parent = point
		end
	end
end
function lightningmodule.Create(point1 : Instance, point2 : Instance, color, isStraightLine)	
	point2.Orientation = point1.Orientation
	local timesToGetLightningStrike = math.random(5, 6)
	local tableOfLerps = {}
	for i = 1, timesToGetLightningStrike do
		local lerpAlpha = random:NextNumber(0.1/timesToGetLightningStrike, 0.1)
		local lerpCFrame = point1.CFrame:Lerp(point2.CFrame, lerpAlpha)
		if #tableOfLerps ~= 0 then
			local lastNumTable = tableOfLerps[#tableOfLerps]
			local lastnum = lastNumTable[2]
			lerpAlpha = lastnum + random:NextNumber(0.15, 0.2)
			print(lerpAlpha, lerpAlpha < 1 and lerpAlpha > 0)
			if lerpAlpha >= 1 or lerpAlpha <= 0 then
				repeat
					print(lerpAlpha, lerpAlpha < 1 and lerpAlpha > 0)
					task.wait()
				until lerpAlpha < 1 and lerpAlpha > 0
			end
			lerpCFrame = point1.CFrame:Lerp(point2.CFrame, lerpAlpha)
			local lastTable = {lerpCFrame, lerpAlpha}
			table.insert(tableOfLerps, lastTable)
		else
			local lastTable = {lerpCFrame, lerpAlpha}
			table.insert(tableOfLerps, lastTable)
		end
	end
	local folderOfPoints = Instance.new("Folder")
	folderOfPoints.Parent = game.Workspace
	folderOfPoints.Name = "LightningPoints"
	for i, v in ipairs(tableOfLerps) do
		lightningPointCreate(1, v[1], color, isStraightLine, folderOfPoints, point1)
	end
end
return lightningmodule
#25

Try this

local DEFAULT_COLOR = Color3.fromRGB(0, 127, 255)

local LightningModule = {}

local function createLightningPoint(pointCount, cf, color, isStraightLine, parent)
	color = color or DEFAULT_COLOR
	
	for i = 1, math.max(1,math.floor(pointCount)) do
		local point = Instance.new("Part")
		point.Size = Vector3.new(1, 1, 1)
		point.Anchored = true
		point.CFrame = cf
		point.Color = color
		point.Transparency = 0.75
		point.CanCollide = false
		point.Parent = parent
		
		-- add if straight script?
	end
end

function LightningModule.Create(point1, point2, color, isStraightLine)
	local strikeCount = math.random(5, 6)
	local pos1, pos2 = point1.Position, point2.Position
	local offset = pos2 - pos1
	
	local defaultStrikeOffset = offset/strikeCount
	local maxStrikeDifferential = defaultStrikeOffset/5
	
	local pointsFolder = Instance.new("Folder")
	pointsFolder.Name = "LightningPoints"
	pointsFolder.Parent = workspace
	
	for i = 1, strikeCount do
		local pos = pos1 + defaultStrikeOffset*i + maxStrikeDifferential*(1 - 2*math.random())
		createLightningPoint(1, CFrame.new(pos), color, isStraightLine, pointsFolder)
	end
	
	-- LINE TRACER, FOR VISUAL EFFECT ONLY, DELETE THIS IN PRODUCTION
	local trace = Instance.new("Part", workspace)
	trace.Anchored = true
	trace.Size = Vector3.new(0.05,0.05,offset.Magnitude)
	trace.CFrame = CFrame.new(pos1, pos2) * CFrame.new(0,0,-offset.Magnitude/2)
	trace.Color = Color3.new(1,0,0)
end

return LightningModule

you might need to make some slight edits to this but it will give you the effect you are looking for. If you need an explanation on anything, let me know. I added an additional thing at line 39 to visualize the line between the 2 points. You can remove that if you like.

1 Like
#26

I don’t need help with the module itself, I just need help with the ifStraight script (Which was the script that handles the offset move thing, and the reason why I made this post)

#27

I’ll take a look at this tomorrow, for now I’m going to head off to sleep.

1 Like
#28

Alright, in the meantime I’ll do something else

#29

I found the solution to this problem, I just had to reset it every time it changed so it would look nicer. Your post is marked as a solution though as it helped greatly, I just modified it a bit to my liking. Thanks :slight_smile: