type
    MoveType = enum
        Jump,
        Slide
    Move = object
        case t: MoveType
        of Jump:
            speed: float
            height: float
        of Slide:
            speed: float
            friction: float

when isMainModule:
    let myJump = Move(t: Jump, speed: 1, height: 5)
    let mySlide = Move(t: Slide, speed: 2, friction: 0.5)
    echo myJump, mySlide
# `Error: attempt to redefine: 'speed'`
# This sucks