How do you play rig animations with tools?

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1

I want a rig to play an animation, which involves holding a weapon. I made the animation in Moon Animator 2 and used the built in Easy Weld to weld the tool to the rig I animated on. The tool itself was “cleaned”, so it’s technically just a model.

I need the animation to play on a rig different to the one I made the animation on, which means the tool is not welded beforehand
The animation can play just fine, but the rig is not holding the tool. I need to somehow weld the tool to the rigs hand at runtime, and I don’t really know how.

Looking at the motor6d of the rig I made the animation on, it has some pretty specific properties. I could definitely store these somewhere and when the weld is being created just copy those values, but I’d possibly have to manually store motor6d properties for every weapon in the game which I do not want to do.

There’s tutorials out there on how to animate with tools/props, but the ones that end up actually playing the animation through code always just play it on the rig already welded with the tool.

Any help is appreciated

2 Likes
2

Can’t you add a WeldConstraint via a script?

3

Why won’t you just weld part of the tool to an item handle?
You overcomplicate everything for the sake of it.

4

This module lets you attach any tool to any rig at runtime using a stored relative CFrame.
I used it to test with. Should still work.

ModuleScript 
--ModuleScript in ReplicatedStorage
local ToolAttacher = {}

function ToolAttacher.Attach(tool, rig, handName, relativeCFrame)
	local hand = rig:FindFirstChild(handName)
	if not hand then return end

	tool.PrimaryPart = tool.PrimaryPart or tool:FindFirstChildWhichIsA("BasePart")
	if not tool.PrimaryPart then return end

	local motor = hand:FindFirstChild("ToolMotor")
	if motor then motor:Destroy() end

	local newMotor = Instance.new("Motor6D")
	newMotor.Name = "ToolMotor"
	newMotor.Part0 = hand
	newMotor.Part1 = tool.PrimaryPart
	newMotor.C0 = relativeCFrame
	newMotor.C1 = CFrame.new()
	newMotor.Parent = hand
end

return ToolAttacher
Usage 
--ServerScript in ServerScriptService
local ToolAttacher = require(game.ReplicatedStorage.ToolAttacher)
local rig = workspace:WaitForChild("Rig")
local tool = workspace:WaitForChild("Weapon")
local handCFrame = CFrame.new(0,0,0) * CFrame.Angles(0,0,0) -- replace with your saved relative CFrame

ToolAttacher.Attach(tool, rig, "RightHand", handCFrame)

Or at least show you a way it could be done.

1 Like
5

Things aren’t “overcomplicated”, they rightfully require this amount of attention. If you read my post you’d understand