Shooting mechanics with a fixed camera?

Help
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Godot Version

4.4.1

Question

I’m pretty new to Godot and fooling around trying to get a first person perspective with a static camera. Imagine a light gun game or on rail shooter where you just shoot at your cursor and you don’t actually control the camera. I’ve tried finding a tutorial but I keep finding ones where the shooting mechanic is tied to the camera moving as well. Any ideas or angles of how I should tackle this mechanic would be appreciated!

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I do something similar for detecting interactable objects, so I child a RayCast3D to the Camera and use the following code.

var mouse := get_viewport().get_mouse_position()
var normal := $Camera.project_local_ray_normal(mouse)
$Camera/RayCast3D.target_position = normal * RAY_LENGTH

This has the downside of being off by a frame, but I find it’s easy to deal with if I want constant raycasts. If you only need to raycast on occasion, such as firing, then you may want to use a physics query instead.

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Thank you!!