Help with camera/fps game

[x8yv (apollo)]

Hey! I’m trying to make a game like everlife (free on steam) which is basically a fast-paced shooter that is based in all sorts of different dimensions.

Right now I’m trying to figure out how to make the gun part.
This is what I have: https://gyazo.com/392bba55af574dd5f22f36b80eae9f31
Code:

part.Parent = workspace
game:GetService("RunService").RenderStepped:Connect(function()
	part.Shape = Enum.PartType.Cylinder
	part.CFrame = workspace.CurrentCamera.CFrame * CFrame.new(5, -1, -5)
	part.Rotation = Vector3.new(0, -90, 0)
end)

This is what I’m trying to accomplish:

Thanks for any help that I can get. Have a good day!

[Scottifly]

Don’t create a Part, make a model and CFrame it to that Position.
It looks like you are creating the Rotation in World space, not Object space.

How to make CFrame relative to world space?

If you have a rotated object and you do object.CFrame *= CFrame.new(0,-1,0) It’s gonna move the object down relative to the object. How would I move the object with CFrame relative to the world? I want to have the same result as if I used object.Position += Vector3.new(0,-1,0) I did try the CFrame methods, but wasn’t successful in that

[x8yv (apollo)]

Hey, sorry I don’t really understand how I would accomplish this. I got back to scripting recently, and I would like some help/explanations. Thanks.

[ThanksRoBama (Emma)]

You want to rotate the Part (or Model, doesn’t matter) by -90 degrees on it’s Y axis relative to it’s CFrame after being moved, but you’re just setting the Rotation property which is in world space, meaning relative to the world’s XYZ axes. Try

@x8yv

part.Parent = workspace
game:GetService("RunService").RenderStepped:Connect(function()
	part.Shape = Enum.PartType.Cylinder
	part.CFrame = workspace.CurrentCamera.CFrame * CFrame.new(5, -1, -5)
	part.CFrame *= CFrame.Angles(0, -math.rad(90), 0)
end)

The math.rad stuff is because CFrames use radians and not degrees, and math.rad converts degrees to radians. You could also learn radians and just type -math.pi/2 instead, either is fine.

The * operator between two CFrames means to compute the result of transforming the left CFrame by the right CFrame. CFrame.Angles returns a CFrame with no position, so transforming by it doesn’t move the model but only rotate it. Applying a transform to a CFrame is always in that CFrame’s space, so since you already set the CFrame of the part, the line I modified should rotate the gun 90 degrees to the left, relative to how it’s already rotated.

If I were you though, I would completely delete that line and instead modify the Pivot of the Part (or CFrame, doesn’t matter) so it “naturally” faces forwards.