roblox gun script

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How To Make a Gun on Roblox
September 16, 2017 By AlvinBLOX

How to make a gun on Roblox – Gun Tutorial code download




Download the full script for this gun tutorial below.

Here’s what your game should look like:




--[[ Side Notes:
- Make sure that your game is set up like mine, with all objects added in
- Make sure FilteringEnabled is turned on
- Make sure that you make your own animations and set your animation IDs to your IDs as you cannot currently take
someone else's animations!

--Main Script which goes in Server Storage --]]


local serverStorage = game:GetService("ServerStorage")
local replicatedStorage = game:GetService("ReplicatedStorage")
local KOValue = "Kills"
local WOValue = "Wipeouts"
local damage = 30
replicatedStorage.ShootEvent.OnServerEvent:Connect(function(player,tool,position,part)
	if game.Workspace[player.Name].Humanoid.Health <= 0 then
		-- The player is dead, do not do anything
	else
		local distance = (tool.Handle.CFrame.p - position).magnitude
		if game.Workspace:FindFirstChild(player.Name.."'s Trajectory") then
			game.Workspace:FindFirstChild(player.Name.."'s Trajectory"):Destroy()
		end
		local trajectory = Instance.new("Part",game.Workspace)
		local smoke = serverStorage.SmokeParticle:Clone()
		smoke.Parent = tool.Handle
		trajectory.BrickColor = BrickColor.new("Institutional white")
		trajectory.Material = "SmoothPlastic"
		trajectory.Name = player.Name.."'s Trajectory"
		trajectory.Transparency = 0.5
		trajectory.Anchored = true
		trajectory.Locked = true
		trajectory.CanCollide = false
		trajectory.Size = Vector3.new(0.3,0.3,distance)
		for i = 0,distance,6 do
			trajectory.CFrame = CFrame.new(tool.Handle.CFrame.p,position) * CFrame.new(0,0,-distance / 2)
			wait(0.0001)
		end
		smoke:Destroy()
		if part then
			if part.Name == "Head" or part:IsA("Hat") and part.Parent:FindFirstChild("Humanoid").Health > 0 then
				-- Boom headshot
				replicatedStorage.Headshot:FireClient(player)
				damage = 50
			end
			local humanoid = part.Parent:FindFirstChild("Humanoid")
			if not humanoid then
				humanoid = part.Parent.Parent:FindFirstChild("Humanoid")
			else
				humanoid:TakeDamage(damage)
				if humanoid.Health <= 0 then
					player.leaderstats[KOValue].Value = player.leaderstats[KOValue].Value + 1
					game.Players[humanoid.Parent.Name].leaderstats[WOValue].Value = game.Players[humanoid.Parent.Name].leaderstats[WOValue].Value + 1
				end
			end
			wait(0.25)
			if trajectory then
				trajectory:Destroy()
			end
		end
	end
end)

replicatedStorage.EquipAnimation.OnServerEvent:Connect(function(player,animation)
	local newAnim = game.Workspace[player.Name].Humanoid:LoadAnimation(animation)
	newAnim:Play()
	replicatedStorage.UnequipAnimation.OnServerEvent:Connect(function(player,animation)
		newAnim:Stop()
		for i,v in pairs(game.Workspace:GetChildren()) do
			if v.Name == player.Name.."'s Trajectory" then
				v:Destroy()
			end
		end
	end)
	replicatedStorage.Reload.OnServerEvent:Connect(function(player,animation)
		newAnim:Stop()
		local reloadAnim = game.Workspace[player.Name].Humanoid:LoadAnimation(animation)
		reloadAnim:Play()
	end)
end)

function checkBodyType(player,tool)
	if game.Workspace[player.Name]:FindFirstChild("LowerTorso") then -- R15
		tool.shoot.AnimationId = "rbxassetid://936531673"
		tool.reload.AnimationId = "rbxassetid://937806099"
		return "R15"
	end
	if game.Workspace[player.Name]:FindFirstChild("Torso") then -- R6
		tool.shoot.AnimationId = "rbxassetid://1000874313"
		tool.reload.AnimationId = "rbxassetid://937933712"
		return "R6"
	end
end
replicatedStorage.CheckBodyType.OnServerInvoke = checkBodyType


-- Local Script, which goes inside the tool

local tool = script.Parent -- Getting the tool
local player = game:GetService("Players").LocalPlayer -- Getting the player
local mouse = player:GetMouse() -- Getting the mouse
local sound = tool:WaitForChild("Gunfire")
local torso = "" -- Nothing for now.
local reloading = false -- Variable to check if we are currently reloading
local contextActionService = game:GetService("ContextActionService") -- Allow us to cater for Mobile players
local bodytype = nil -- Nil for now but will check whether player is R6 or R15
local difference = 0 -- Difference between position of head and mouse
local replicatedstorage = game:GetService("ReplicatedStorage")
local gungui = tool:WaitForChild("GunGUI")
local bullets = tool:WaitForChild("Bullets")
local reloadtime = 3
-- Remote Events
local equipAnimation = replicatedstorage:WaitForChild("EquipAnimation")
local headshot = replicatedstorage:WaitForChild("Headshot")
local reload2 = replicatedstorage:WaitForChild("Reload")
local shootevent = replicatedstorage:WaitForChild("ShootEvent")
local unequipanimation = replicatedstorage:WaitForChild("UnequipAnimation")
-- Remote Functions
local checkBodyType = replicatedstorage:WaitForChild("CheckBodyType")
local fetchBulletsLeft = replicatedstorage:WaitForChild("FetchBulletsLeft")
-- Find Body Type
function findBodyType() -- Used to determine whether a player is R6 or R15
	bodytype = checkBodyType:InvokeServer(tool) -- Invoking the Remotefunction to do a check on the server
	print(bodytype)
end
-- Reloading function
function reload()
	reloading = true
	reload2:FireServer(tool.reload)
	mouse.Icon = "http://www.roblox.com/asset?id=936489163"
	player.PlayerGui:WaitForChild("GunGUI").Bullets.Text = "Reloading!"
	wait(reloadtime)
	bullets.Value = 6
	player.PlayerGui:WaitForChild("GunGUI").Bullets.Text = "Bullets: "..bullets.Value
	mouse.Icon = "http://www.roblox.com/asset?id=936803874"
	equipAnimation:FireServer(tool.shoot)
	reloading = false
end
-- When the tool is equipped, the following event will run
tool.Equipped:Connect(function(mouse)
	gungui:Clone().Parent = player.PlayerGui -- We are cloning the Gun GUI into the player's PlayerGUI
	findBodyType() -- Calling the function above to check the body type.
	equipAnimation:FireServer(tool.shoot) -- Calling the equip animation remoteevent so that the server can play the animation
	mouse.Icon = "http://www.roblox.com/asset?id=936803874"
	mouse.Button1Down:Connect(function()
		if bullets.Value <=0 or reloading == true then
			-- Don't do anything
		else
			local head = game.Workspace[player.Name].Head.CFrame.lookVector
			local mouse = CFrame.new(game.Workspace[player.Name].Head.Position,mouse.Hit.p).lookVector
			difference = (head-mouse)
			local ray = Ray.new(tool.Handle.CFrame.p,(player:GetMouse().Hit.p - tool.Handle.CFrame.p).unit*300)
			local part,position = game.Workspace:FindPartOnRay(ray,player.Character,false,true)
			sound:Play()
			if difference.magnitude < 1.33 then
				shootevent:FireServer(tool,position,part)
				bullets.Value = bullets.Value - 1
			end
		end
	end)
	local reloadMobileButton = contextActionService:BindAction("ReloadBtn",reload,true,"r")
	contextActionService:SetPosition("ReloadBtn",UDim2.new(0.72,-25,0.20,-25))
	contextActionService:SetImage("ReloadBtn","http://www.roblox.com/asset/?id=10952419")
end)
tool.Unequipped:Connect(function()
	mouse.Icon = ""
	unequipanimation:FireServer(tool.shoot)
	player.PlayerGui.GunGUI:Destroy()
	contextActionService:UnbindAction("ReloadBtn")
end)
headshot.OnClientEvent:Connect(function()
	player.PlayerGui.GunGUI.Headshot:TweenPosition(UDim2.new(0.5,-100,0.5,-25), "Out","Quint",0.3)
	wait(1.5)
	player.PlayerGui.GunGUI.Headshot:TweenPosition(UDim2.new(-1,0,0.5,-25), "In","Quint",0.4)
	wait(0.5)
	player.PlayerGui.GunGUI.Headshot.Position = UDim2.new(1.5,0,0.5,-25)
end)
— Leaderboard code which goes inside ServerScriptService, optional to include, you can add your own if you want but bear in mind the gun won’t work unless you have some sort of leaderboard with a Kills and Wipeouts stat

game.Players.PlayerAdded:Connect(function(player)
	local leaderstats = Instance.new("IntValue",player)
	leaderstats.Name = "leaderstats"

	local kills = Instance.new("IntValue",leaderstats)
	kills.Name = "Kills"
	kills.Value = 0

	local wipeouts = Instance.new("IntValue",leaderstats)
	wipeouts.Name = "Wipeouts"
	wipeouts.Value = 0

	-- Data saving code goes here if you need it
end)