How do you add a LookVector to a vector3?

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#1

Hey there!

I was wondering how I could add a lookvector to a vector3:

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image800×600 17.6 KB

Anyone got ideas? I’m bad at math.

#2

Use CFrame.new(vector3).lookVector

#3

Well I just went with this instead:

local cap = 0.5
local drag = 0.005
local devider = 100
local velocity = Vector3.zero

wait(5) local i = 0
while true do
	i=i+1
	wait()
	local lookvector = script.Parent.CFrame.LookVector
	local final = lookvector
	--velocity cap
	if math.abs(velocity.x)>cap and math.abs(velocity.x+(final/devider).X)> math.abs(velocity.x) then
		--print('CAP FOR X: '..velocity.x)
	else
		velocity=velocity+Vector3.new( (final/devider).X,0,0)
	end
	if math.abs(velocity.z)>cap and math.abs(velocity.z+(final/devider).z)> math.abs(velocity.z) then
		--print('CAP FOR Z: '..velocity.z)
	else
		velocity=velocity+Vector3.new(0,0,(final/devider).Z)
	end
	-- set to 0 on each sides to straigthen
	
	--x 
	if velocity.X>0 then
		velocity=velocity-Vector3.new(drag,0,0)
	end
	if velocity.X<0 then
		velocity=velocity+Vector3.new(drag,0,0)
	end
	--xz
	if velocity.Z>0 then
		velocity=velocity-Vector3.new(0,0,drag)
	end
	if velocity.Z<0 then
		velocity=velocity+Vector3.new(0,0,drag)
	end
	-- add velocity
	script.Parent.Position=script.Parent.Position+velocity
	--- debug
	if i%2 ==0 then
		local c= script.Parent:clone()
		c.Parent=workspace
		c.Transparency=0.5
		c.BrickColor=BrickColor.new('Really red')
		game.Debris:AddItem(c,2)
	end
end