Help with a knockback roll?

Help and Feedback Scripting Support
#1

Hello everyone.

i was trying to create a knockback roll similar to many battlegrounds games, but i ran into an issue and some… complications?

anyways, when the player hits the ground, the vectorvelocity designed to push the player back actually forces them into the floor. i tried reducing maxforce, except… at that point it wont roll the player back at the desired speed.

here is the module:

local AnimateModule = game:GetService("ReplicatedStorage").AnimationModules.JointAnim

local RollPushBack = {}

function RollPushBack.Push(Humanoid : Humanoid, Velocity : number, Base : Part, Part : Part, Raise : boolean)
	local TS = game:GetService("TweenService")
	local Up : Vector3
	local Down : Vector3
	
	local AnimTable = {
		["Float"] = 'rbxassetid://85016151310429',
		["Land"] = 'rbxassetid://86230451638966'
	}
	
	if Raise == true then
		Up = Vector3.new(0, 30, 0)
		Down = Vector3.new(0, 80, 0)
	else
		Up = Vector3.new(0, 0, 0)
		Down = Vector3.new(0, 80, 0)
	end
	
	local Direction = -((Base["Position"] - Part["Position"])["Unit"] * Velocity) + Up
	local DownTween = -((Base["Position"] - Part["Position"])["Unit"] * Velocity)/1.5 - Down
	local LandedTweenStart = Vector3.new(Direction["X"], 0, Direction["Z"])	
	print(LandedTweenStart)
	local LandedTweenEnd = Vector3.new(0, 0, 0)
	
	local AttachmentZero = Instance.new("Attachment")
	AttachmentZero["Parent"] = Part -- part is the enemy's hrp btw
	
	local LV = Instance.new("LinearVelocity")
	LV["Attachment0"] = AttachmentZero
	LV["MaxForce"] = 100000
	LV["RelativeTo"] = Enum.ActuatorRelativeTo.World
	LV["VectorVelocity"] = Direction
	LV["Parent"] = Part
	LV["ForceLimitsEnabled"] = true
	
	Part["CFrame"] = CFrame.lookAt(Part["Position"], Base["Position"])
	
	local Tween = TS:Create(LV, TweenInfo.new(5, Enum.EasingStyle.Sine, Enum.EasingDirection.Out), {VectorVelocity = DownTween})
	
	
	Tween:Play()
	
	local CastParams = RaycastParams.new()
	CastParams.FilterType = Enum.RaycastFilterType.Include
	CastParams.FilterDescendantsInstances = {workspace.Map}
	
	for _, Animation in pairs(Humanoid["Animator"]:GetPlayingAnimationTracks()) do
		Animation:Stop()
	end
	
	local Float : AnimationTrack = require(AnimateModule).Animate(Humanoid, AnimTable["Float"])
	
	repeat
		wait()
	until Humanoid:GetState() == Enum.HumanoidStateType.Landed or workspace:Raycast(Part["Position"], Vector3.new(0, -3, 0), CastParams)
	
	LV["VectorVelocity"] = LandedTweenStart
	
	for _, Animation in pairs(Humanoid["Animator"]:GetPlayingAnimationTracks()) do
		Animation:Stop()
	end
	
	local Roll : AnimationTrack = require(AnimateModule).Animate(Humanoid, AnimTable["Land"])
	
	local function Rolling()
		local Time = Roll["Length"] - Roll:GetTimeOfKeyframe("SLOWING")
		print(Time)
		local Tween = TS:Create(LV, TweenInfo.new(Time, Enum.EasingStyle.Linear, Enum.EasingDirection.Out), {VectorVelocity = LandedTweenStart})
		Tween:Play()
		
		Tween.Completed:Connect(function()
			LV:Destroy()
			AttachmentZero:Destroy()
		end)
	end
	
	Roll:GetMarkerReachedSignal("Slowing"):Connect(Rolling)
end

return RollPushBack

i can show other parts of this system as well if required.
unfortunatly, i dont know how to screen record on windows.

any assistance is appreciated.

#2

Can you describe what knockback roll is more? Maybe try using HumanoidRootPart:ApplyImpulse() or other force methods.

#3

apply impulse only does an initial thing if im correct
if youve played tsb use pinpoint cut with blade master thats basicly the same thing im going for

#4

Windows + G.

You need to apply the force opposite of the player’s humanoid root part look vector

#5

i know that.
im not a complete amutuer.

my script works perfectly fine. as intended. throwing the humanoid into the air works wonderfully. its just, when the humanoid lands a short distance away, it partially pushes the player into the ground.