Hi there. I’m currently stuck at the mechanics for rotating a valve or wheel with the mouse. I want to make it like they did in Amnesia where the player has to mimic the rotation of the valve with the mouse. (“Drawing” circles clockwise or anticlockwise)
I have a setup that makes a direction out of mouse x and y and gets the rotation from it but that seems to work only on vertical mouse movement and gets jittery at horizontal mouse movement.
After some research I found out, that Amnesia does this with real physics, constrains and springs (I think we don’t have springs in UE). But using real physics like a physics handle is not an option since I have to detect how many full turns the valve does. I came up with a solition that centers the mouse cursor on interacting with the handle and then finds the look at rotation based on cursor position and viewport half-size. It’s not super elegant but it works since we don’t have a visible mouse cursor. Here is the Blueprint if anyone is interested. I leave the topic open. maybe someone has an even better solution to this since mine is just a hack
