momentum:
    type: world
    events:
        on player jumps:
            - adjust <player> has_friction:false
        on player starts sprinting:
            - while <context.state>:
                - if <player.speed> <= 0.29:
                    - wait 0.1s
                    - adjust <player> speed:<player.speed.add[0.02]>
                    - announce <player.speed>
                    - adjust <player> has_friction:true
        on player stops sprinting:
                - adjust <player> speed:0.11