How do I move a part along a ray?

Help and Feedback Scripting Support
#1

I am trying to make a ricocheting projectile. I have created a part and I think I have correctly created a ray that reflects. The problem is I don’t know how to move the part along the ray that I have created. local startCFrame = bullet.CFrame
local normal = startCFrame.lookVector
local position = startCFrame.p

local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
raycastParams.FilterDescendantsInstances = {sP}

local ray = Ray.new(position, normal * 500, raycastParams)

local hit, position, surfaceNormal = game.Workspace:FindPartOnRay(ray) --Cast ray

if (hit) then
	--Get the reflected normal
	local reflectedNormal = (normal - (2 * normal:Dot(surfaceNormal) * surfaceNormal))
	--Set new normal
	normal = reflectedNormal

	--bullet.BodyVelocity.Velocity = normal * sP.Speed.Value
	bullet.BodyVelocity.Velocity = normal * sP.Speed.Value
end				


--Create reference to a BindableEvent
local triggerBullet = Instance.new("BindableEvent")
triggerBullet.Event:Connect(function()
	local stepped
	stepped = game:service "RunService".Stepped:connect(function()
		if bullet ~= nil and bullet.Parent == sP then

			bullet.CFrame = bullet.CFrame + bullet.CFrame.LookVector * 20/40

		else
			stepped:Disconnect()
		end
	end)			
end)

triggerBullet:Fire()
#2

Instead of moving the projectile like the way in the code above I want to move it using the ray so when Part moves far enough that it collides with something it will bounce off.

#3

just a tip both :service() and :connect() have been deprecated for a long time

local stepped = game:GetService("RunService").Stepped:Connect(function()

also please use the undeprecated functions for rays

1 Like
#4

Ok this that here is new version of code:

local startCFrame = bullet.CFrame
local normal = startCFrame.lookVector
local position = startCFrame.p

-- Set an origin and directional vector
local rayOrigin = bullet.Position
local rayDirection = bullet.CFrame.LookVector
-- Build a "RaycastParams" object and cast the ray
local raycastParams = RaycastParams.new()
raycastParams.FilterDescendantsInstances = {sP}
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
local hit, position, surfaceNormal = workspace:Raycast(rayOrigin, rayDirection, raycastParams)

if hit then
	local hitPart = hit.Instance
	-- Check if the part resides in a folder, that it's fully visible, and not locked
	if hitPart.CanCollide == true then
		--Get the reflected normal
		local reflectedNormal = (normal - (2 * normal:Dot(surfaceNormal) * surfaceNormal))
		--Set new normal
		normal = reflectedNormal

		--bullet.BodyVelocity.Velocity = normal * sP.Speed.Value
		print("HIT")
		--bullet.CFrame = normal * sP.Speed.Value
	end
end		

--Create reference to a BindableEvent
local triggerBullet = Instance.new("BindableEvent")
triggerBullet.Event:Connect(function()
	local stepped
	stepped = game:service "RunService".Stepped:connect(function()
		if bullet ~= nil and bullet.Parent == sP then

			bullet.CFrame = bullet.CFrame + bullet.CFrame.LookVector * 20/40

		else
			stepped:Disconnect()
		end
	end)			
end)

triggerBullet:Fire()
1 Like
#5

Maybe you can try tweening the part fromthe origin to hit position