Physics do not match locally and server sided

Help and Feedback Scripting Support
,
1

I created a snowball that you can throw and upon impact it it splashes

Unfortunately when I throw the snowball it sometimes explodes mid air!
here are some examples:

Video example

2022-09-19 02-38-32

Video from second perspective

Streamable

This is my the script:

local newclone = toclone:Clone()
	newclone.Parent = workspace
	newclone.Position = plr.Character.Head.Position + (plr.Character.Head.CFrame.lookVector * 4)
	local BF = Instance.new("BodyForce", newclone)
	BF.Force = plr.Character.Head.CFrame.lookVector * 150 *dur + Vector3.new(0, 1/dur, 0)
	newclone.Name = plr.Name.." Snowball"
	newclone.CanCollide = true
	
	newclone.Touched:Connect(function(touch)
		if touch.Parent ~= script.Parent.Parent then
			print(touch.Name)
			newclone.ParticleEmitter:Emit(10)
			newclone.Anchored = true
			newclone.BodyForce:Destroy()
			newclone.Transparency = 1
			wait(.7)
			newclone:Destroy()
		end

	end)

Any suggestions or fixes for this problem are appreciated.
Thank you in advance!

2 
local newclone = toclone:Clone()
	newclone.Parent = workspace
	newclone.Position = plr.Character.Head.Position + (plr.Character.Head.CFrame.lookVector * 4)
	local BF = Instance.new("BodyForce", newclone)
	BF.Force = plr.Character.Head.CFrame.lookVector * 150 *dur + Vector3.new(0, 1/dur, 0)
	newclone.Name = plr.Name.." Snowball"
	newclone.CanCollide = true
	
	newclone.Touched:Connect(function(touch)
		if touch.Parent ~= script.Parent.Parent then
if touch.Parent:FindFirstChild("HumanoidRootPart") then
			print(touch.Name)
			newclone.ParticleEmitter:Emit(10)
			newclone.Anchored = true
			newclone.BodyForce:Destroy()
			newclone.Transparency = 1
			wait(.7)
			newclone:Destroy()
end
		end

	end)

Try this

If it dont works show me what touch.Name prints

3

You should be using fastcast for projectiles. Especially small and fast moving

There are other problems too. So for now I’ll give some pointers:

  1. Body Movers are deprecated. Use Attachment forces or impulses instead.
  2. TouchedEvents are inaccurate for small fast moving objects. It’s highly recommend to use raycasts.
  3. It’s best not to use the second argument for Instance.parent as instances take slightly longer to load into the workspace
  4. Physics object should ideally be set to the server(for security and consistency between clients)
2 Likes
4

same problem! it prints baseplate

5

Ill try this sounds legit! Could you maybe explain what you mean with 4. Since the force already is server sided

6

Okay well it’s be better to read it for yourself as the documentation explains how it works in a much more cornice way than I could ever hope to.

But I will explain later.
BasePart:SetNetworkOwner() is the method to send a part to server physics.

At the moment we are heading to the funeral ttyl

7

Thank you for your solution!

Thank you for going out of your way to reply to this post!

…

here is a video for anyone interested!

https://streamable.com/8bh7rw

for anyone in the future trying:
I found this tutorial going deep into the “basics” of fastcast

8

Would you still like me to briefly explain the other points?

9

sure! !!ignore!!