Hello, i got stuck on the Redux Road project

Task No12:

Currently, the player can continue traveling even if their supplies are negative! Fix this in the `'travel'`

case.

If there are not sufficient supplies to travel the given number of days, return the current state.

I can’t figure out how to bind this in the case:

case “travel” : {

return {

```
...state,
supplies: state.supplies -20,
distance: state.distance +10,
days: state.days+1
}
}
```