How to make part shoot in the direction the players mouse is

[WindyTundra]

I have a script and i just want to know how i could make a part shoot in the direction the mouse is facing.

local FireThrown = game.ReplicatedStorage.RemoteEvents.FireThrown

FireThrown.OnServerEvent:Connect(function (plr, spell, spellPosition)
	
	local newSpell = spell:Clone()

	
	newSpell.Parent = game.Workspace
	
	local Fire = newSpell:FindFirstChild("Fire")
	local Sphere = newSpell:FindFirstChild("Sphere.001")
	
	if Fire and Sphere then
		Sphere.HandleWeld:Destroy()
		Fire.Position  = spellPosition
		Sphere.Position = Fire.Position
	end
	
end)

[JAcoboiskaka1121 (Skellyton)]

You will need to use a LookVector. Here’s an example of how to use it.

local Mouse = game.Players.LocalPlayer:GetMouse()

local ShootDirection = Mouse.Hit.LookVector--Mouse Direction

[WindyTundra]

what should i use to make it shoot, assembly linear velocity, linear velocity, or what?

[JAcoboiskaka1121 (Skellyton)]

If your using a part, the best way would probably be a linear velocity, since it shoots forward, but an even better approach would be using ray casting and make it shoot like that.

In my opinion, raycasting is more reliable and better, and can get more information than a part.Touched can. Or whatever your using.

[sick_tr1cks (sick)]

hey @JAcoboiskaka1121 ,

i’m not affiliated with OP but if you would be so kind, could you push me in the right direction with what you’d do after a raycast?

For example, I want to make a bullet fire, but it has no relation to the scripts, it’s just for vfx.

I would shoot the ray and handle any code, but then what would I do? Would I use a tween to move a bullet to the position?

[JAcoboiskaka1121 (Skellyton)]

Here’s a simple gun script that I used to learn raycasting,

local Tool = script.Parent

local Player = game.Players.LocalPlayer
local Mouse = Player:GetMouse()

Tool.Activated:Connect(function()
	local Origin = Tool.Handle.Position
	local Direction = (Mouse.Hit.Position - Origin).Unit
	
	local function CleanUp()
		for i, v in pairs(workspace:GetChildren()) do
			if v.Name == "RayPart" or v.Name == "OriginPart" then
				v:Destroy()
			end
		end
	end
	
	local Params = RaycastParams.new()
	Params.FilterType = Enum.RaycastFilterType.Exclude
	Params.FilterDescendantsInstances = {Tool.Handle, Player.Character:GetChildren()}
	Params.IgnoreWater = true

	local ray = workspace:Raycast(Origin, Direction * 1000, Params)
	
	
		local RayLine = Instance.new("Part", workspace)
		
		local distance = (ray.Position - Origin).Magnitude
		RayLine.Size = Vector3.new(0.2, 0.2, distance)
		RayLine.CFrame = CFrame.new(Origin, ray.Position) * CFrame.new(0, 0, -distance/2)
		RayLine.Anchored = true
		RayLine.Parent = workspace
	
	task.wait(0.5)
	
	RayLine:Destroy()
	CleanUp()
	
end)

If you scroll down to the RayLine Variable, you can see how I did it.

I just used a part to visualise the ray, but depending on what you’re trying to do, you would probably have to tween it or apply a Linear Velocity. What ever is best for your purpose. Maybe beams can also work.

[sick_tr1cks (sick)]

thanks for the help. simple yet effective