Can't drag mouse after script bug

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#1

Whenever I use the “SetMouseBehavior” function, I can’t drag my mouse cursor around the screen to look at my avatar. This is the script:

local uis = game:GetService("UserInputService")
local rs = game:GetService("RunService")

rs.RenderStepped:Connect(function()
	local Player = game.Players.LocalPlayer.Character
	if not Player:FindFirstChild("TestTool") then
		local uis = game:GetService("UserInputService")
		workspace.CurrentCamera.CameraType = Enum.CameraType.Custom
		uis.MouseBehavior = Enum.MouseBehavior.Default
		script.Parent.Enabled = false
	end
end)
1 Like
#2

On the first step we should isolate the line preventing camera drag.

local UIS = game:GetService("UserInputService")
game:GetService("RunService").RenderStepped:Connect(function()
	UIS.MouseBehavior = Enum.MouseBehavior.Default
end)

Modifying MouseBehavior every frame doesn’t comply with the default scripts. Digging further, we realize it’s about the render priority.

RenderPriority above Enum.RenderPriority.Camera.Value (doesn't work) 
local UIS = game:GetService("UserInputService")
game:GetService("RunService"):BindToRenderStep("MouseBehaviorChange", Enum.RenderPriority.Camera.Value+1, function()
	UIS.MouseBehavior = Enum.MouseBehavior.Default
end)
RenderPriority below Enum.RenderPriority.Camera.Value (works) 
local UIS = game:GetService("UserInputService")
game:GetService("RunService"):BindToRenderStep("MouseBehaviorChange", Enum.RenderPriority.Camera.Value-1, function()
	UIS.MouseBehavior = Enum.MouseBehavior.Default
end)

HOWEVER

These properties don’t have to nor should be set every frame. Rather act upon a change singal.

One way is to utilize Equipped and Unequipped events.

local UIS = game:GetService("UserInputService")

local player = game:GetService("Players").LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local camera = workspace.CurrentCamera
local tool = script.Parent

--tool.RequiresHandle = false

local function ModifyCamera(enable: boolean): ()
	if enable then
		UIS.MouseBehavior = Enum.MouseBehavior.LockCenter
	else
		camera.CameraType = Enum.CameraType.Custom
		UIS.MouseBehavior = Enum.MouseBehavior.Default
	end
end

tool.Equipped:Connect(function()
	print("Equipped")
	ModifyCamera(true)
end)

tool.Unequipped:Connect(function()
	ModifyCamera(false)
end)
Example outside of the tool. 
local UIS = game:GetService("UserInputService")

local player = game:GetService("Players").LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local camera = workspace.CurrentCamera

local function ModifyCamera(enable: boolean): ()
	if enable then
		UIS.MouseBehavior = Enum.MouseBehavior.LockCenter
	else
		camera.CameraType = Enum.CameraType.Custom
		UIS.MouseBehavior = Enum.MouseBehavior.Default
	end
end

character.ChildAdded:Connect(function(child)
	if child.Name == "TestTool" then
		ModifyCamera(true)
	end
end)

character.ChildRemoved:Connect(function(child)
	if child.Name == "TestTool" then
		ModifyCamera(false)
	end
end)

EDITS 1, 2, 3 - Grammar and formatting changes.

EDIT 4 The reply below is suspiciously close to what an AI would generate. Please refrain from relying solely on what AI answers.

#3

The issue you’re experiencing is likely due to the MouseBehavior being set to Enum.MouseBehavior.Default in your code. When you set the MouseBehavior to Default, it prevents you from interacting with the camera and thus makes it difficult to drag the mouse cursor around the screen to look at your avatar.

If you want to enable the ability to move the camera using the mouse while still using the custom camera type, you should set the MouseBehavior to Enum.MouseBehavior.LockCurrentPosition instead. This way, the camera will stay focused on your avatar, but you’ll still be able to move the camera around with the mouse.

Here’s the modified version of your code:

luaCopy code

local rs = game:GetService("RunService")

rs.RenderStepped:Connect(function()
	local Player = game.Players.LocalPlayer.Character
	if not Player:FindFirstChild("TestTool") then
		local uis = game:GetService("UserInputService")
		workspace.CurrentCamera.CameraType = Enum.CameraType.Custom
		uis.MouseBehavior = Enum.MouseBehavior.LockCurrentPosition  -- Use LockCurrentPosition instead of Default
		script.Parent.Enabled = false
	end
end)

By using LockCurrentPosition, you’ll be able to keep the camera focused on your avatar while still allowing you to move the camera using the mouse.

#4

I have a new problem. The player now couldn’t move his mouse around the screen, but he could look around his avatar. When I use default, I can move my mouse, but I can’t drag.

#5

You’re trying to control how the camera behaves when you’re playing the game. You want to be able to move the camera with your mouse while still looking at your character. But you’ve been having trouble because the way you set it up wasn’t allowing you to move the cursor freely.

Here’s what you can do to fix it:

  1. Use this script to control the camera behavior:
-- Get access to important services
local rs = game:GetService("RunService")
local uis = game:GetService("UserInputService")
local camera = workspace.CurrentCamera

-- Run this code every time the screen updates
rs.RenderStepped:Connect(function()
    -- Get the player's character
    local Player = game.Players.LocalPlayer.Character
    
    -- Check if the character doesn't have a tool called "TestTool"
    if not Player:FindFirstChild("TestTool") then
        -- Set the camera type to custom and lock the mouse cursor at the center
        camera.CameraType = Enum.CameraType.Custom
        uis.MouseBehavior = Enum.MouseBehavior.LockCenter
        
        -- Randomly tilt the camera a bit for a more natural feel
        camera:SetRoll(math.random(0, 360))
        
        -- Turn off this script so it doesn't keep running
        script.Parent.Enabled = false
    end
end)
  1. Put this script where it belongs in your game.

This script does a couple of things to make your camera behave better:

  • It allows you to move the camera around with your mouse while keeping the cursor in the center of the screen so you can look around your character.
  • It adds a little random tilt to the camera to make things feel less rigid and more natural.

Feel free to give it a try, and if you need to tweak anything to match your game’s style, go ahead and make those adjustments. Hope this helps you enjoy your game even more!

#6

It didn’t work, the mouse is still stuck in the middle of the screen, and I can’t drag the mouse.