i want to make a simple rail grinding like in sonic games. is this possible?
Probably possible, yes. You should do some sort of check for collision with a rail and then change animations accordingly. Be sure to change state (if using a state system such as state "Attack" or "UseItem")/animations once they're off the rail.
You can use invisible hitboxes for the rail surfaces and use if overlap checks.
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alright anything else i need to know?