The crazy zombie roblox script

--By Rufus14 (READ 2nd LINE)
--To be invisible, press Q, to start a infection click someone to target him. If you don't they will chase you.
mouse = game.Players.LocalPlayer:GetMouse()
target = game.Players.LocalPlayer.Character.Torso
local graphic = game.Players.LocalPlayer.Character:findFirstChild("Shirt Graphic")
if graphic then
	graphicid = graphic.Graphic
end
caninfect = true
invisible = false
function targettool()
	local torso = mouse.Target.Parent:findFirstChild("Torso")
	local humanoid = mouse.Target.Parent:findFirstChild("Humanoid")
	if torso and humanoid then
		target = torso
		print("You are now targetting "..torso.Parent.Name)
	end
end
mouse.Button1Down:connect(targettool)
function inv(key)
	if key == "q" then
		invisible = not invisible
		if invisible then
			game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 40
			for i,v in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
				if v.ClassName == "Part" then
					if v.Name == "HumanoidRootPart" then

					else
						v.Transparency = 1
					end
				end
				game.Players.LocalPlayer.Character.Head.face.Transparency = 1
				for q,w in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
					if w.ClassName == "Shirt Graphic" then
						w.Graphic = "rbxassetid://0"
					end
				end
				for e,r in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
					if r.ClassName == "Accessory" or r.ClassName == "Hat" then
						r.Handle.Transparency = 1
					end
				end
			end
		end
		if not invisible then
			game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 16
			for i,v in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
				if v.ClassName == "Part" then
					if v.Name == "HumanoidRootPart" then

					else
						v.Transparency = 0
					end
				end
				game.Players.LocalPlayer.Character.Head.face.Transparency = 0
				for q,w in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
					if w.ClassName == "Shirt Graphic" then
						w.Graphic = graphicid
					end
				end
				for e,r in pairs(game.Players.LocalPlayer.Character:GetChildren()) do
					if r.ClassName == "Accessory" or r.ClassName == "Hat" then
						r.Handle.Transparency = 0
					end
				end
			end
		end
	end
end
mouse.KeyDown:connect(inv)
function zawmbie(part)
	if part.Parent then
		torso = part.Parent:findFirstChild("Torso")
		humanoid = part.Parent:findFirstChild("Humanoid")
	end
	if caninfect and torso and humanoid ~= nil and part.Parent ~= nil then
		if torso.Parent.Name == "Infected Player" then
			--nono
		else
			torso.Parent.Archivable = true
			local zombieclone = torso.Parent:Clone()
			zombieclone.Name = "Infected Player"
			torso.Anchored = false
			humanoid.Health = 1
			for i,v in pairs(torso.Parent:GetChildren()) do
				if v.ClassName == "Part" then
					v.CFrame = v.CFrame * CFrame.new(0,0,0)
					v.Anchored = false
					v.Transparency = 0.5
				end
				if v.ClassName == "Hat" or v.ClassName == "Accessory" then
					v:destroy()
				end
			end
			local infectionsound = Instance.new("Sound", torso.Parent.Head)
			infectionsound.SoundId = "rbxassetid://304063043"
			infectionsound.Volume = 20
			infectionsound:Play()
			zombieclone.Parent = workspace
			local function die()
				wait(5)
				zombieclone:destroy()
			end
			zombieclone.Humanoid.Died:connect(die)
			local face = zombieclone.Head:findFirstChild("face")
			if face ~= nil then
				face.Texture = "rbxassetid://7506136"
			end
			zombieclone.Torso.CFrame = zombieclone.Torso.CFrame * CFrame.new(4,0,4)
			zombieclone.Humanoid.MaxHealth = humanoid.MaxHealth * 2
			zombieclone.Humanoid.Health = zombieclone.Humanoid.MaxHealth
			zombieclone.Humanoid.WalkSpeed = 20
			local rarmfornow = zombieclone.Torso:findFirstChild("Right Shoulder")
			local larmfornow = zombieclone.Torso:findFirstChild("Left Shoulder")
			if rarmfornow ~= nil then
				for i = 1,2 do
					wait()
					rarmfornow.C0 = rarmfornow.C0 * CFrame.Angles(0,0,0.09)
				end
				for i = 1,3 do
					wait()
					rarmfornow.C0 = rarmfornow.C0 * CFrame.Angles(0,0,0.11)
				end
				for i = 1,6 do
					wait()
					rarmfornow.C0 = rarmfornow.C0 * CFrame.Angles(0,0,0.12)
				end
				for i = 1,3 do
					wait()
					rarmfornow.C0 = rarmfornow.C0 * CFrame.Angles(0,0,0.11)
				end
				for i = 1,2 do
					wait()
					rarmfornow.C0 = rarmfornow.C0 * CFrame.Angles(0,0,0.09)
				end
			end
			if larmfornow ~= nil then
				for i = 1,2 do
					wait()
					larmfornow.C0 = larmfornow.C0 * CFrame.Angles(0,0,-0.09)
				end
				for i = 1,3 do
					wait()
					larmfornow.C0 = larmfornow.C0 * CFrame.Angles(0,0,-0.11)
				end
				for i = 1,6 do
					wait()
					larmfornow.C0 = larmfornow.C0 * CFrame.Angles(0,0,-0.12)
				end
				for i = 1,3 do
					wait()
					larmfornow.C0 = larmfornow.C0 * CFrame.Angles(0,0,-0.11)
				end
				for i = 1,2 do
					wait()
					larmfornow.C0 = larmfornow.C0 * CFrame.Angles(0,0,-0.09)
				end
			end
			wait(3)
			zombieclone.Torso.Touched:connect(zawmbie)
			canchange = true
			function change()
				if canchange then
					canchange = false
					ply = game.Players:GetPlayers()[math.random(game.Players.NumPlayers)]
					local plytorso = ply.Character:findFirstChild("Torso")
					local plyhumanoid = ply.Character:findFirstChild("Humanoid")
					if ply.Name == game.Players.LocalPlayer.Name or not plyhumanoid or not plytorso or plytorso.Transparency == 1 then
						change()
					else
						target = ply.Character.Torso
						print(target.Parent.Name)
					end
					wait(5)
					canchange = true
				end
			end
			zombieclone.Torso.Touched:connect(change)
			while true do
				wait()
				for i,v in pairs(game.Players:GetChildren()) do
					local char = v:findFirstChild("Character")
					if char ~= nil then
						local ws = v.Character:findFirstChild("Humanoid")
						if ws ~= nil then
							if ws.WalkSpeed >= 41 then
								ws.WalkSpeed = 16
							end
						end
					end
				end
				local targethum = target.Parent:findFirstChild("Humanoid")
				if targethum ~= nil then
					for i,v in pairs(workspace:GetChildren()) do
							if v.ClassName == "Model" and v.Name == "Infected Player" then
								if zombieclone.Humanoid.WalkSpeed <= 24 then
									zombieclone.Humanoid.WalkSpeed = zombieclone.Humanoid.WalkSpeed + 1
								end
								if zombieclone.Humanoid.WalkSpeed >= 24 then
									zombieclone.Humanoid.WalkSpeed = 24
								end
								v.Humanoid.WalkToPoint = target.Position
								local rleg = zombieclone.Torso:findFirstChild("Right Hip")
								local lleg = zombieclone.Torso:findFirstChild("Left Hip")
								if rleg ~= nil and lleg ~= nil then
									for i = 1,5 do
										wait()
										lleg.C0 = lleg.C0 * CFrame.Angles(0,0,0.13)
										rleg.C0 = rleg.C0 * CFrame.Angles(0,0,0.13)
									end
									v.Humanoid.WalkToPoint = target.Position
									for i = 1,10 do
										wait()
										lleg.C0 = lleg.C0 * CFrame.Angles(0,0,-0.13)
										rleg.C0 = rleg.C0 * CFrame.Angles(0,0,-0.13)
									end
									v.Humanoid.WalkToPoint = target.Position
									for i = 1,5 do
										wait()
										lleg.C0 = lleg.C0 * CFrame.Angles(0,0,0.13)
										rleg.C0 = rleg.C0 * CFrame.Angles(0,0,0.13)
									end
								end
						end
					end
				end
			end
		end
	end
end
game.Players.LocalPlayer.Character.Torso.Touched:connect(zawmbie)