Hello im having problem with my raycast script i had tried to solve this all day but there was no news
Server side :
remoteEvent.OnServerEvent:Connect(function(endPosition, startPosition, mouseHit, Gunmodel,pos,normal,player)
local rayDirection = (mouseHit - startPosition).unit -- the direction of the raycast
local direction = workspace:Raycast(startPosition - rayDirection * 1000) -- error happen
local raycast = game.Workspace:Raycast(startPosition, direction)
if direction then
local hitPart = direction.Instance
print(hitPart.Name)
end
Cilent :
local mouseHit = mouse.Hit.Position
local startPosition = Gunmodel.Start.Position
local endPosition = mouse.Hit.Position
RelicatedStorage.Folder.AK47event:FireServer(endPosition, startPosition, mouseHit, Gunmodel,pos,normal,player)
Output :
Hope anyone can see this and help me im really mad rn 
2 Likes
local direction = workspace:Raycast(startPosition - rayDirection * 1000) -- error happen
doesnt always return a ray you need to make a check for it
1 Like
IIRC, raycast needs a position AND a direction, both as vector3.
You need to add a second parameter which is a direction
1 Like
Could you give me example ? This kinda hard for me as a newbie
Why is direction a RaycastResult? Shouldn’t it be a Vector3?
I am very confuse now this should work but the second error happen
– ServerScriptService.Ak45:7: attempt to perform arithmetic (sub) on Instance and Vector3 - Server - Ak45:7 –
Cilent (almost all script ingore some)
if Ammo.Value > 0 then
shooting = true
end
equipped = true
mouseConnection = mouse.Button1Down:Connect(function()
shooting = true
while shooting == true and equipped == true and reloading == false and Ammo.Value > 0 do
local mouseHit = mouse.Hit.Position
local startPosition = Gunmodel.Start.Position
local endPosition = mouse.Hit.Position
local r = Ray.new(Camera.CFrame.Position, (mouse.Hit.Position - Camera.CFrame.Position).Unit * 500)
-- Create a RaycastParams object and set CanCollide to false
local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
-- Add the CanCollide part to the IgnoreList
-- Perform the raycast
local part, pos, normal = workspace:FindPartOnRayWithIgnoreList(r, {player.Character}, false, false)
raycastParams.FilterDescendantsInstances = {part}
RelicatedStorage.Folder.AK47event:FireServer(endPosition, startPosition, mouseHit, Gunmodel,pos,normal,player)
Ammo.Value = Ammo.Value -1
coroutine.wrap(function()
local Connection1
local Connection2
Connection1 = RS.RenderStepped:Connect(PlayRecoil)
wait(0.01)
Connection1:Disconnect()
wait(0.05)
-- recover recoil
Connection2 = RS.RenderStepped:Connect(RecoverRecoil)
wait(0.1)
Connection2:Disconnect()
end) ()
mouse.Button1Up:Connect(function()
-- release button here
shooting = false
if shooting == true then
shooting = false
end
end)
wait(0.1)
end
end)
Server :
remoteEvent.OnServerEvent:Connect(function(endPosition, startPosition, mouseHit, Gunmodel,pos,normal,player)
local direction = (endPosition - startPosition).Unit * 100
local raycast = game.Workspace:Raycast(startPosition, direction)
Gunmodel.Fire:Play()
local part = Instance.new("Part")
local decal = Instance.new("Decal")
local sound = Instance.new("Sound")
part.Size = Vector3.new(0.2, 0.2, 0.0001)
decal.Texture = "rbxassetid://15128977943"--rbxassetid://7350477734 wall sound
part.BrickColor = BrickColor.new("Yellow flip/flop")
part.CanCollide = false
part.Anchored = true
part.Parent = visualsFolder
part.Transparency = 1
part.Position = endPosition --- remove this ----
part.CFrame = CFrame.new(pos, pos + normal)
decal.Parent = part
sound.Parent = part
sound.SoundId = "rbxassetid://15129408969"
sound.Volume = 1
sound.TimePosition = 0.3
sound:Play()
if raycast then
local hitCharacter = raycast.Instance.Parent
local humanoid = hitCharacter:FindFirstChild("Humanoid")
if humanoid then
if hitCharacter.Name ~= player.Character.Name then
Gunmodel.HitSound:Play()
if raycast.Instance.Name == "Head" then
humanoid.Health -= 30
else
humanoid.Health -= math.random(20,26)
end
end
end
end
wait(0.2)
Gunmodel.Start.Flame.Enabled = false
Gunmodel.Start.Flame1.Enabled = false
Gunmodel.Start.Glow.Enabled = false
Gunmodel.Start.Flash.Enabled = false
Gunmodel.Start.MuzzleEffect.Enabled = false
wait(3)
part:Destroy()
end)
There is one point worth noting that “GunModel” i mention in script are from local script which mean it only 1 player see ? Doesnt it affect to the code i had tried the code inside tool and it work correctly just replace Gunmodel to Tool May i right ?
