BrightExplosions.lua

local RunService = game:GetService("RunService")
local TweenService = game:GetService("TweenService")
local RNG = Random.new()

local node = Instance.new("Part")
node.Name = "_ExplosionLightNode"
node.Anchored = true
node.CanCollide = false
node.Locked = true
node.Transparency = 1
node.Parent = workspace

local expFadeOut = { Brightness = 0, Range = 0, Color = Color3.new() }
local expTweenOut = TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.In)
local expTweenIn = TweenInfo.new(0.5, Enum.EasingStyle.Back, Enum.EasingDirection.Out)

local function onExplosion(exp)
    local att = Instance.new("Attachment")
    att.Name = exp:GetFullName()
    att.CFrame = CFrame.new(exp.Position)

    local innerLight = Instance.new("PointLight")
    innerLight.Name = "InnerLight"
    innerLight.Brightness = expFadeOut.Brightness
    innerLight.Range = expFadeOut.Range
    innerLight.Color = expFadeOut.Color
    innerLight.Shadows = true

    local outerLight = innerLight:Clone()
    outerLight.Name = "OuterLight"

    local innerFadeIn =
    {
        Brightness = exp.BlastRadius * 30;
        Range = exp.BlastRadius * 1.5;
        Color = Color3.new(1,0.5,0.25);
    }

    local outerFadeIn =
    {
        Brightness = exp.BlastRadius * 2;
        Range = exp.BlastRadius * 3;
        Color = Color3.new(1,0.5,0.25);
    }

    innerLight.Parent = att
    outerLight.Parent = att
    att.Parent = node

    spawn(function ()
        while exp:IsDescendantOf(workspace) do
            local x = RNG:NextNumber(-1,1)
            local y = RNG:NextNumber(-1,1)
            local z = RNG:NextNumber(-1,1)

            att.CFrame = CFrame.new(exp.Position) * CFrame.new(x,y,z)
            RunService.Heartbeat:Wait()
        end
    end)

    local innerTweenIn = TweenService:Create(innerLight, expTweenIn, innerFadeIn)
    local outerTweenIn = TweenService:Create(outerLight, expTweenIn, outerFadeIn)
    innerTweenIn:Play()
    outerTweenIn:Play()

    wait(expTweenIn.Time)

    local innerTweenOut = TweenService:Create(innerLight, expTweenOut, expFadeOut)
    local outerTweenOut = TweenService:Create(outerLight, expTweenOut, expFadeOut)

    innerTweenOut:Play()
    outerTweenOut:Play()

    wait(expTweenOut.Time)
    att:Destroy()
end

local function onDescendantAdded(desc)
    if desc:IsA("Explosion") then
        onExplosion(desc)
    end
end

workspace.DescendantAdded:Connect(onDescendantAdded)