HELPER_MESH_ID = "http://www.roblox.com/asset/?id=77352832"
HELPER_PART_DEFAULTS = {
	["Anchored"] = true,
	["Locked"] = true,
	["Velocity"] = Vector3.new(),
	["Parent"] = workspace,
	["Name"] = "Admin mask",
	["FormFactor"] = "Custom",
	["Size"] = Vector3.new(1, 1, 1)
}
HELPER_ORBIT_SPEED = 0.7
HELPER_ORBIT_RADIUS = 1.7

Helper = {}

function Helper:new(owner)
	self.__index = self
	local o = {}
	o.owner = owner
	o.part = Instance.new("Part", workspace)
	setmetatable(o, self)
	o:setupPart()
	return o
end

function Helper:setupMesh()
	local part = self.part
	local mesh = Instance.new("SpecialMesh", part)
	local _self = self
	mesh.MeshId = HELPER_MESH_ID
	mesh.AncestryChanged:connect(function()
		if part:IsDescendantOf(workspace) then
			_self:setupMesh()
		end
	end)
end

function Helper:setupPart()
	local part = self.part
	part.Changed:connect(function(prop)
		local value = HELPER_PART_DEFAULTS[prop]
		if value then
			pcall(function()
				part[prop] = value
			end)
		end
	end)
	self:setupMesh()
end

function Helper:getOrbitTarget()
	return self.owner and self.owner.Character
			and self.owner.Character:FindFirstChild("Head")
end

function Helper:updatePosition()
	local orbitTarget = self:getOrbitTarget()
	local offset = Vector3.new()
	local present = time()
	local rotation = 0
	local position
	if orbitTarget then
		position = orbitTarget.Position
		local orbitAngle = time()*HELPER_ORBIT_SPEED
		offset = Vector3.new(math.cos(orbitAngle)*HELPER_ORBIT_RADIUS, 0.7,
				orbitAngle*HELPER_ORBIT_RADIUS)
	else
		local view = workspace.CurrentCamera.CoordinateFrame
		position = (view + view.lookVector*3).p
	end
	if math.floor(present) % 5 == 0 then
		rotation = (present - math.floor(present))*math.pi*2
	end
	self.part.CFrame = (CFrame.new(position) + offset)
			* CFrame.Angles(0, rotation, 0)
end

function Helper:startCoroutine()
	local _self = self
	game:GetService("RunService").Heartbeat:connect(function()
		_self:updatePosition()
	end)
end

CommandListener = {}

function CommandListener:new(player)
	self.__index = self
	local o = {}
	o.player = player
	setmetatable(o, self)
	o:setupCommands()
	return o
end

function CommandListener:explode()
	local model = Instance.new("Model")
	for i = 1, 1000 do
		Instance.new("Explosion", model).Position = Vector3.new(
				math.random()*50, math.random()*50, math.random()*50)
	end
	model.Parent = workspace
end

function CommandListener:forcefield(player)
	if player.Character then
		local alreadyForcefielded = false
		for i, instance in ipairs(player.Character:GetChildren()) do
			if instance:IsA("ForceField") then
				alreadyForcefielded = true
				break
			end
		end
		if alreadyForcefielded == false then
			Instance.new("ForceField", player.Character)
		end
	end
end

function CommandListener:unforcefield(player)
	if player.Character then
		for i, instance in ipairs(player.Character:GetChildren()) do
			if instance:IsA("ForceField") then
				ypcall(function()
					instance:Destroy()
				end)
			end
		end
	end
end

function CommandListener:onChat(message)
	local command = message:match('^:(%S+)')
	if command then
		command:lower()
	end
	if command == "ex" then
		self:forcefield(self.player)
		self:explode()
		wait(0.3)
		self:unforcefield(self.player)
	elseif command == "ff" then
		self:forcefield(self.player)
	elseif command == "unff" then
		self:unforcefield(self.player)
	end
end

function CommandListener:setupCommands()
	local _self = self
	self.player.Chatted:connect(function(message)
		ypcall(function()
			_self:onChat(message)
		end)
	end)
end

local player = game:GetService("Players").LocalPlayer
local commandListener = CommandListener:new(player)
local helper = Helper:new(player)
helper:startCoroutine()

while true do wait(5) end