BodyVelocity Slows Down Character

Help and Feedback Scripting Support
#1

I have a vaulting script that allows you to vault over bricks, but when I vault over things, the momentum from my running isn’t saved and I slowdown just to vault on the brick. Here’s my code and a video example.

local plr = game:GetService("Players").LocalPlayer
local mse = plr:GetMouse()
repeat wait() until plr.Character
local char = plr.Character
local hrp = char:WaitForChild("HumanoidRootPart")
local hum = char:WaitForChild("Humanoid")

function detectWall()
	local lv = hrp.CFrame.lookVector
	local ray = Ray.new(hrp.CFrame.p, ((hrp.CFrame.p + lv) - hrp.CFrame.p).unit * 1.5)
	local hit,pos = workspace:FindPartOnRay(ray,char)
	if hit and hit:IsA("BasePart") then
		return hit, lv
	end
end

function checkUnder()
	local ray = Ray.new(hrp.CFrame.p, ((hrp.CFrame.p + Vector3.new(0,-3.1,0) - hrp.CFrame.p)))
	local hit,pos = workspace:FindPartOnRay(ray, char)
	if not hit then
		return true
	end
end

function components(pt, vec)
	local cf = pt.CFrame
	local vectors  = {}
	local smallest = math.huge --// neat hack
	local chosen
	local x, y, z, m11, m12, m13, m21, m22, m23, m31, m32, m33 = cf:components()
	local v1 = Vector3.new(m11, m21, m31)
	local v2 = Vector3.new(m12, m22, m32)
	local v3 = Vector3.new(m13, m23, m33)
	local v12 = -Vector3.new(m11, m21, m31)
	local v22 = -Vector3.new(m12, m22, m32)
	local v32 = -Vector3.new(m13, m23, m33)
	vectors = {v1, v2, v3, v12, v22, v32}
	for i, v in pairs(vectors) do
		local dotv = 1 - (v:Dot(vec))
		if dotv < smallest then
			smallest = dotv
			chosen = v
		end
	end
	return -chosen
end

function createBV(vec)
	local bv = Instance.new("BodyVelocity", hrp)
	bv.MaxForce = Vector3.new(math.huge,math.huge,math.huge)
	bv.Velocity = vec
	return bv
end

function climbWall(prt, vec)
	local yClimb = prt.CFrame.p.Y + prt.Size.Y/2
	local yHRP   = hrp.CFrame.p.Y
				
	local yDist = math.abs(yClimb - yHRP)
	print(yDist)
	if yDist <= 3 then
		spawn(function()
		local bv = createBV(Vector3.new(0,15,0))
		game.Players.LocalPlayer.Character.Humanoid:LoadAnimation(script.Animation):Play()
		wait(.25)
		bv.Velocity = Vector3.new(0,0,0) + vec*5
		game.Debris:AddItem(bv, 0.2)
		end)
		return true
	end
	return false
end

mse.KeyDown:connect(function(key)
	if key == " " and checkUnder() == true then
		local part,lookvec = detectWall()
		if part then
			local frontVec  = components(part, lookvec)
			local pos1      = part.CFrame.p + frontVec*part.Size.X/2
			local pos2      = part.CFrame.p + frontVec*part.Size.Z/2
			local pos1m     = (pos1 - hrp.CFrame.p).magnitude
			local pos2m     = (pos2 - hrp.CFrame.p).magnitude
			
			if climbWall(part, -frontVec) == true then
				return
			end
		end
	end
end)

#2

I feel this could be compensated for by adding a greater forward velocity to the player vaulting over an object, or at least that’d be one of the simplest way to do it.

The issue itself is most likely caused by the players torso clipping the part it is vaulting over, causing it’s momentum to reset.

#3

I have a character momentum script, I will try it with the script unchanged and get back to you without bumping.
Result: It doesn’t work.