Knockback does not work on players

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1

Hi! So I have this problem with a knockback system I’m making. The knockback and rag doll works fine on dummies but not on players. Instead the player will just stand up while ragdolling.

I heard that it’s because Velocity is deprecated or something.

I don’t know the replacement or the new way of making knockback because I couldn’t find any info.

My script is a server script.
Script:

local touched = false
local TS = game:GetService("TweenService")
game.ReplicatedStorage.Throw.OnServerEvent:Connect(function(plr, mouseHit)
	local clone = plr.Character:FindFirstChildWhichIsA("Tool").Handle:Clone()
	plr.Character.Humanoid:LoadAnimation(script.Parent.Handle:FindFirstChild("Yeet")):Play()
	clone.Hitbox.Touched:Connect(function(hit)
		print(hit.Parent)
		if hit.Parent:FindFirstChild("Humanoid") and hit.Parent ~= plr.Character and hit.Parent.Name ~= "Rope" then
			if hit.Parent.Humanoid.Health > 0 then
				if not touched then
					local target = hit.Parent
					local joints = target:GetDescendants()
					target.Humanoid.BreakJointsOnDeath = false
					touched = true
					clone.CanTouch = false
					target.HumanoidRootPart.Velocity = plr.Character.HumanoidRootPart.CFrame.LookVector * 160 + Vector3.new(0,160,0)  
					clone.Impact:Play()
					print(hit.Parent.Name,"was hit by",script.Parent.Name)
					hit.Parent:FindFirstChild("Humanoid").Health -= 10
					for _,joint in pairs(joints) do
						if joint:isA("Motor6D") then						
							local socket = Instance.new("BallSocketConstraint")
							local att0 = Instance.new("Attachment")
							local att1 = Instance.new("Attachment")
							print(joint)
							target.Humanoid:ChangeState(Enum.HumanoidStateType.Ragdoll)
							target.Humanoid:SetStateEnabled(Enum.HumanoidStateType.GettingUp, false)
							target.Humanoid.AutoRotate = false
							--target.Humanoid.PlatformStand = true
							--target.Humanoid.WalkSpeed = 0
							--target.Humanoid.JumpPower = 0
							att0.Name = "Att0"
							att1.Name = "Att1"
							att0.CFrame = joint.C0
							att1.CFrame = joint.C1
							att0.Parent = joint.Part0
							att1.Parent = joint.Part1
							touched = true
							clone.CanTouch = false
	
							socket.Parent = joint.Part0
							socket.Attachment0 = att0
							socket.Attachment1 = att1
							att0.Name = "Att0"
							att1.Name = "Att1"
							
	
							socket.LimitsEnabled = true
							socket.TwistLimitsEnabled = true
	
							--wait(0.2)
	
							--wait(2)
	
							joint.Enabled = false
							
						end
					end
					print(target)
					print(target.Humanoid.Health)
		
					wait(0.2)
					clone:Destroy()
					touched = false
					clone.CanTouch = true
					wait(1)
					if hit.Parent.Humanoid.Health > 0 then
						if target.Name ~= "Dummy3" then
							target.Humanoid:ChangeState(Enum.HumanoidStateType.GettingUp)
							target.Humanoid:SetStateEnabled(Enum.HumanoidStateType.GettingUp, true)
							target.Humanoid.AutoRotate = true
							target.Humanoid.WalkSpeed = 26
							target.Humanoid.JumpPower = 7.5
							for _,joint2nd in pairs(joints) do
								if joint2nd:isA("Motor6D") then
									joint2nd.Enabled = true
								end	
							for _, child in pairs(target:GetDescendants()) do
								if child.Name == "Att0" or child.Name == "Att1" or child:IsA("BallSocketConstraint") then
									child:Destroy()
								end
							end
						end
					end
				end			
			end
		end
	end
end)
	wait(0.4)
	plr.Character:FindFirstChildWhichIsA("Tool").Handle.Woosh:Play()
	wait(0.1)
	plr.Character:FindFirstChildWhichIsA("Tool").Handle.Transparency = 1
	clone.Transparency = 0
	local tool = clone.Parent
	clone.Parent = game.Workspace	
	clone.Anchored = true
	clone.CanCollide = false
	clone.Hitbox.CanCollide = false
	clone.CanTouch = true
	clone.Hitbox.CanTouch = true
	print(clone.Parent)
	
	--	clone.Position = script.Parent.Handle.Position
	clone.CFrame = plr.Character.HumanoidRootPart.CFrame+plr.Character.HumanoidRootPart.CFrame.LookVector * 5
	local Tween = TS:Create(clone,TweenInfo.new(0.5),{CFrame = plr.Character.HumanoidRootPart.CFrame + plr.Character.HumanoidRootPart.CFrame.LookVector * 80})
	Tween:Play()

	--print(mouseHit)
	wait(0.45)
	plr.Character:FindFirstChildWhichIsA("Tool").Handle.Transparency = 0
	clone:Destroy()
end)
--clone.Touched:Connect(function(hit)
	--local plr = game.Players:GetPlayerFromCharacter(hit.Parent)
	--print(plr,"was hit by",script.Parent.Name)
--end)
2 Likes
2

Sadly, I have the same problem. Will let you know if I find a solution however.

3

Apply the knockback before ragdolling. Looks like that is the issue here.
Immediately changing the character to ragdoll state. When a character is in ragdoll state, the HumanoidRootPart becomes unanchored and physics are handled by the individual body parts, so the velocity you set gets overwritten.

Wow, having crazy problems getting anything to work out here that isn’t on the chopping block at some point.

Here is a hack .. gl

--ServerScript in Workspace.Part
local part = script.Parent

part.Touched:Connect(function(hit)
	local root = hit.Parent:FindFirstChild("HumanoidRootPart")
	if root then
		root.CFrame = root.CFrame + (root.Position - part.Position).Unit * 5 + Vector3.new(0,2,0)
	end
end)