first commit

CircularBeam.lua

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+-- Types
+export type BeamParams = {
+	Color : Color3,
+	LightEmission : number,
+	LightInfluence : number,
+	TextureId : number,
+	TextureLength : number,
+	TextureSpeed : number,
+	Transparency : number,
+	Segments : number,
+	Width0 : number,
+	Width1 : number
+}
+
+-- Variables
+local DEFAULT_PARAMS : BeamParams = {
+	Color = Color3.new(255, 255, 255),
+	LightEmission = 1,
+	LightInfluence = 0,
+	TextureId = 18302051506,
+	TextureLength = 1,
+	TextureSpeed = 0,
+	Transparency = 0.5,
+	Segments = 10,
+	Width0 = 2,
+	Width1 = 2
+}
+
+-- Functions
+local function CalculateCurveSize(radius : number)
+	return (radius * 4) / 3
+end
+
+local function CreateBeam(radius, beamParams, attachment0, attachment1, inverse, name, parent)
+	local curveSize = CalculateCurveSize(radius)
+
+	local beam = Instance.new("Beam")
+	beam.Color = ColorSequence.new(beamParams.Color or DEFAULT_PARAMS.Color)
+	beam.LightEmission = beamParams.LightEmission or DEFAULT_PARAMS.LightEmission
+	beam.LightInfluence = beamParams.LightInfluence or DEFAULT_PARAMS.LightInfluence
+	beam.Texture = "rbxassetid://" .. (beamParams.TextureId or DEFAULT_PARAMS.TextureId)
+	beam.TextureLength = beamParams.TextureLength or DEFAULT_PARAMS.TextureLength
+	beam.TextureSpeed = beamParams.TextureSpeed or DEFAULT_PARAMS.TextureSpeed
+	beam.Transparency = NumberSequence.new(beamParams.Transparency or DEFAULT_PARAMS.Transparency)
+	beam.Segments = beamParams.Segments or DEFAULT_PARAMS.Segments
+	beam.Width0 = beamParams.Width0 or DEFAULT_PARAMS.Width0
+	beam.Width1 = beamParams.Width1 or DEFAULT_PARAMS.Width1
+	beam.Name = name
+	beam.Parent = parent
+
+	if inverse then
+		beam.Attachment0, beam.Attachment1 = attachment1, attachment0
+		beam.CurveSize0,  beam.CurveSize1  = curveSize, -curveSize
+	else
+		beam.Attachment0, beam.Attachment1 = attachment0, attachment1
+		beam.CurveSize0,  beam.CurveSize1  = -curveSize, curveSize
+	end
+
+	return beam
+end
+
+local function CreateAttachment(position, name, parent)
+	local attachment = Instance.new("Attachment")
+	attachment.Position = position
+	attachment.Orientation = Vector3.new(0, 90, 180)
+	attachment.Name = name
+	attachment.Parent = parent
+	return attachment
+end
+
+local function CreateRoot()
+	local root = Instance.new("Part")
+	root.CastShadow = false
+	root.Transparency = 1
+	root.Size = Vector3.one
+	root.Anchored = true
+	root.CanCollide = false
+	root.CanTouch = false
+	root.Name = "CircularBeam"
+	return root	
+end
+
+local function CreateCircularBeam(radius, beamParams)
+	local root = CreateRoot()
+	local attachment0 = CreateAttachment(Vector3.new( radius, root.Size.Y / 2, 0), "Attachment0", root)
+	local attachment1 = CreateAttachment(Vector3.new(-radius, root.Size.Y / 2, 0), "Attachment1", root)
+	local beam0 = CreateBeam(radius, beamParams, attachment0, attachment1, false, "Beam0", root)
+	local beam1 = CreateBeam(radius, beamParams, attachment0, attachment1, true,  "Beam1", root)
+	return root
+end
+
+-- Class
+local CircularBeam = {}
+CircularBeam.__index = CircularBeam
+
+-- Methods
+function CircularBeam.Create(radius : number, beamParams : BeamParams?)
+	return CreateCircularBeam(radius, if not beamParams then DEFAULT_PARAMS else beamParams)
+end
+
+function CircularBeam.Resize(circularBeam : BasePart, radius : number)
+	local curveSize = CalculateCurveSize(radius)
+
+	local attachment0 = circularBeam:FindFirstChild("Attachment0")
+	local attachment1 = circularBeam:FindFirstChild("Attachment1")
+	local beam0 = circularBeam:FindFirstChild("Beam0")
+	local beam1 = circularBeam:FindFirstChild("Beam1")
+
+	if attachment0 and attachment1 and beam0 and beam1 then
+		attachment0.Position = Vector3.new(radius, circularBeam.Size.Y / 2, 0)
+		attachment1.Position = Vector3.new(-radius, circularBeam.Size.Y / 2, 0)
+		beam0.CurveSize0, beam0.CurveSize1 = -curveSize, curveSize
+		beam1.CurveSize0, beam1.CurveSize1 = curveSize, -curveSize
+	end
+end
+
+return CircularBeam

Script.lua

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+local Selection = game:GetService("Selection")
+local Workspace = game:GetService("Workspace")
+
+local Camera = Workspace.Camera
+
+local folder = script.Parent
+local circularBeamModule = require(folder.CircularBeam)
+local toolbar = plugin:CreateToolbar("Circular Beam")
+local createButton = toolbar:CreateButton(
+	"New Circular Beam",
+	"Create a new circular beam.",
+	"rbxassetid://18329485600"
+)
+local resizeButton = toolbar:CreateButton(
+	"Resize Circular Beam",
+	"Resize the selected circular beam.",
+	"rbxassetid://18329700935"
+)
+local resizeWidget = plugin:CreateDockWidgetPluginGui(
+	"resizeCircularBeam",
+	DockWidgetPluginGuiInfo.new(
+		Enum.InitialDockState.Float,
+		false,
+		true,
+		250,
+		60,
+		250,
+		60
+	)
+)
+local resizeGui = folder.ResizeGui
+local resizeGuiSet = resizeGui.Main.Set
+local resizeGuiValue = resizeGui.Main.Value
+local resizeGuiInfo = resizeGui.Info
+
+resizeWidget.Title = "Resize Circular Beam"
+resizeGui.Parent = resizeWidget
+
+local function SetCursor(cursorAsset)
+	plugin:GetMouse().Icon = cursorAsset
+end
+
+local function GetPosition()
+	local raycastParams = RaycastParams.new()
+	raycastParams.FilterDescendantsInstances = {}
+	raycastParams.FilterType = Enum.RaycastFilterType.Exclude
+	raycastParams.IgnoreWater = false
+
+	local raycastResult = Workspace:Raycast(Camera.CFrame.Position, Camera.CFrame.LookVector * 1000, raycastParams)
+	if raycastResult then
+		return raycastResult.Position
+	else
+		return Camera.CFrame.Position + Camera.CFrame.LookVector * 100
+	end
+end
+
+resizeGuiSet.MouseEnter:Connect(function()
+	resizeGuiSet.BackgroundColor3 = Color3.fromHex("35B5FF")
+	SetCursor("rbxasset://SystemCursors/PointingHand")
+end)
+
+resizeGuiSet.MouseLeave:Connect(function()
+	resizeGuiSet.BackgroundColor3 = Color3.fromHex("00A2FF")
+	SetCursor("")
+end)
+
+resizeGuiSet.MouseButton1Down:Connect(function()
+	resizeGuiSet.BackgroundColor3 = Color3.fromHex("006DCC")
+end)
+
+resizeGuiSet.MouseButton1Up:Connect(function()
+	resizeGuiSet.BackgroundColor3 = Color3.fromHex("00A2FF")
+end)
+
+resizeGui.Main.Set.MouseButton1Click:Connect(function()
+	local size = tonumber(resizeGui.Main.Value.Text)
+	if size then
+		for _, child in Selection:Get() do
+			circularBeamModule.Resize(child, size)
+		end		
+	end
+end)
+
+createButton.Click:Connect(function()
+	local new = circularBeamModule.Create(5)
+	new.Position = GetPosition()
+	new.Parent = Workspace
+
+	Selection:Set({new})
+end)
+
+resizeButton.Click:Connect(function()
+	resizeWidget.Enabled = not resizeWidget.Enabled
+end)
+
+while true do
+	task.wait(1)
+
+	local circularBeams = 0
+	for _, child in Selection:Get() do
+		if child.Name == "CircularBeam" and child:FindFirstChild("Beam0") then
+			circularBeams += 1
+		end
+	end
+
+	resizeGuiInfo.Text = `Apply to {circularBeams} selected circular beams.`
+end