GlobalFunctions

local GlobalFunctions = {}

--function for shooting a laser beam from a weapon tool
function GlobalFunctions.shootLaser(player, mouseHit, tool, maxDistance, damage, color)
    --create the ray itself from the tip to the position our mouse is clicking
    local ray = Ray.new(tool.Tip.CFrame.p, (mouseHit.p - tool.Tip.CFrame.p).unit * maxDistance)
    local part, position = workspace:FindPartOnRay(ray, player.Character, false, true)

    --create the look of the beam
    local beam = Instance.new("Part", workspace)
    beam.BrickColor = BrickColor.new(color)
    beam.FormFactor = "Custom"
    beam.Material = "Neon"
    beam.Transparency = 0.25
    beam.Anchored = true
    beam.Locked = true
    beam.CanCollide = false

    --cap the distance to the maxDistance value
    local distance = (tool.Tip.CFrame.p - position).magnitude
    if (distance > maxDistance) then
        distance = maxDistance
    end

    --change the size and direction of the beam
    beam.Size = Vector3.new(0.3, 0.3, distance)
    beam.CFrame = CFrame.new(tool.Tip.CFrame.p, position) * CFrame.new(0, 0, -distance/2)

    --destroy the beam after some time
    game:GetService("Debris"):AddItem(beam, 0.1)

    --check if part is hit and if the part belongs to a humanoid
    if part then
        local humanoid = part.Parent:FindFirstChild("Humanoid")
        --check another parent level if it has a humanoid
        if not humanoid then
            local humanoid = part.Parent.Parent:FindFirstChild("Humanoid")
        end
        --do damage if humanoid
        if humanoid then
            humanoid:TakeDamage(damage)
        end
    end
end

return GlobalFunctions