Raycast Problems

Help and Feedback Scripting Support
#1

I am trying to do a raycast from a wand to target mouse position but it somehow returns nil instead of raycast result. I tried fixing origin and direction -which had no problems whatsoever- and it didnt work. I don’t even use raycastParameters. Help please

#2

could you include the code and where you are clicking/what you are clicking on?

#3

StarterCharacterScripts | LocalScript

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

local function contains(table, val)
	for i=1,#table do
		if table[i] == val then 
			return true
		end
	end
	return false
end

local AvailableSpells = {"test"}


Player.Chatted:Connect(function(message, recipient)
	if not Character:FindFirstChild("Wand") then
		return
	end
	message = message:lower()
	if contains(AvailableSpells, message) then
		local ReplicatedStorage = game:GetService("ReplicatedStorage")
		local Event:RemoteEvent = ReplicatedStorage:WaitForChild("SpellEvent")
		local Wand:Tool = Character.Wand
		local Handle:Part = Wand:FindFirstChild("Handle")
		Event:FireServer(message, Handle.Position, Handle, Mouse.Hit.Position)
	end
end)

ServerScriptService | Script

local SpellEvent = game.ReplicatedStorage.SpellEvent
local Module = require(game.ReplicatedStorage.SpellModule)

local function spellCheck(player, spell, wandPos, handle, endPos)
	if spell == "test" then
		print(tostring(wandPos) .. "\n" .. tostring(endPos))
		Module.SendBullet(wandPos, endPos, handle, function() end)
		
	end
end

SpellEvent.OnServerEvent:Connect(spellCheck)

ReplicatedStorage | ModuleScript | SpellModule

local ray = {}

function ray.SendBullet(startPos, endPos, handle, onImpact)
	local params = RaycastParams.new()
	params.FilterDescendantsInstances = {handle}
	params.FilterType = Enum.RaycastFilterType.Exclude
	params.IgnoreWater = true
	local raycastResult = workspace:Raycast(startPos, endPos - startPos)
	local part = Instance.new("Part", workspace)
	local instance:BasePart = raycastResult.Instance
	part.Position = instance.Position
	part.Size = Vector3.new(.5,.5,.5)
	part.Anchored = true
	part.Material = Enum.Material.Neon
	part.Color = Color3.new(1,0,0)
end

return ray
#4

You type the message and it raycasts.

#5

RaycastResults sadly don’t get returned if your raycast doesn’t hit anything (ex: you aimed in the air).

#6

I aim it at a BasePart though and every time it returns nil

#7

You should (at least first) perform a raycast on the client.

#8

Also, you’re not using the raycastparams that you defined earlier.

#9

You should check to make sure the raycast result is valid before you use it and you should probably get the unit vector and define a range because the ray being cast only goes up to the object, and doesn’t intersect it.

#10

Another thing to look for is to see if the parts you’re raycasting to have CanQuery enabled. Raycasts ignore parts that have this property disabled.

#11

I have it enabled on all parts in workspace

#12

Same result as others. Just nil

#13

I defined a range and tried unit but still didnt work

#14

Send the updated code please…(char limit)

#15

is CanQuery of the part you are hitting true?

#16

Yeah I double checked it for sure.

#17

Localscript

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

local function contains(table, val)
	for i=1,#table do
		if table[i] == val then 
			return true
		end
	end
	return false
end

local AvailableSpells = {"test"}


Player.Chatted:Connect(function(message, recipient)
	if not Character:FindFirstChild("Wand") then
		return
	end
	message = message:lower()
	if contains(AvailableSpells, message) then
		local ReplicatedStorage = game:GetService("ReplicatedStorage")
		local Event:RemoteEvent = ReplicatedStorage:WaitForChild("SpellEvent")
		local Wand:Tool = Character.Wand
		local Handle:Part = Wand:FindFirstChild("Handle")
		local params = RaycastParams.new()
		params.FilterDescendantsInstances = {Handle}
		params.FilterType = Enum.RaycastFilterType.Exclude
		params.IgnoreWater = true
		local raycastResult = workspace:Raycast(Handle.Position, (Mouse.Hit.Position - Handle.Position).Unit * 1000, params)
		Event:FireServer(message, raycastResult, Handle.Position)
	end
end)

Serverscript

local SpellEvent = game.ReplicatedStorage.SpellEvent
local Module = require(game.ReplicatedStorage.SpellModule)

local function spellCheck(player, spell, raycastResult:RaycastResult, startPos:Vector3)
	if spell == "test" then
		Module.SendBullet(startPos, raycastResult.Position, 20)
	end
end

SpellEvent.OnServerEvent:Connect(spellCheck)

ModuleScript

local ray = {}

function ray.SendBullet(startPos, endPos, steps)
	local instance = Instance.new("Part", workspace)
	instance.Anchored = true
	instance.CanCollide = false
	instance.Size = Vector3.new(.5,.5,.5)
	instance.Color = Color3.new(0,1,0)
	for i=0,steps,1 do
		instance.Position = startPos:Lerp(endPos, i/steps)
		wait(0.3)
	end
end

return ray
#18

try printing the result in the local script

#19

It prints it normally in the localscript. Now its getting weirder

#20

Well because of that I modified the function so it replaces raycastResult with the hit position and it works so thx.

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