I think the most straight forward way in go is just use 2 calls (pseudo)
done:= handleVerbs(g.Verbs)
If !done && includeSysVerbs {
handleVerbs(sys.Verbs)
}
If it is more involved than that then use an internal delegating to parent
pattern and declare a struct like ActionMap, that takes a parent ActionMap.
> On May 3, 2019, at 6:45 AM, Mark Bauermeister <warfan2...@gmail.com> wrote:
>
> I'm in the process of writing my own Text Adventure/Interactive Fiction
> engine/library and am now running into a bit of a problem attempting to
> extend the parser.
>
> On the implementation side (i e a game), this is how a game is initially set
> up.
> game = mid.Game{
> Title: "Cloak of Darkness",
> Author: "Roger Firth (implemented by Mark Bauermeister)",
> Intro: `Hurrying through the rainswept November night, you're glad to
> see the
> bright lights of the Opera House.
>
> It's surprising that there aren't more
> people about but, hey, what do you expect in a cheap demo game...?`,
> Goodbye: "See you later!",
> MaxScore: 2,
> Verbs: map[string]func(...string){
> "drop": drop,
> },
> Synonyms: map[string][]string{
> "drop": {"throw"},
> },
> }
>
> Now on the engine/library side, standard verbs are currently hardcoded inside
> the parser loop.
> Ideally, I'd like to add them to the same "Verbs" map though.
>
> Is there a straightforward way to include the contents of one map in another?
>
> Ideally, I'd like to have a "BuiltinVerbs" map and include it as such:
>
> Verbs: map[string]func(...string){
> BuiltinVerbs,
> "drop": drop,
> },
>
> The parser currently looks like this and "g.Verbs" should eventually contain
> both, the game designer's chosen verbs and (if so chosen) the built-in verbs:
>
> func (g *Game) Parse() {
> reader := bufio.NewScanner(os.Stdin)
> for {
> fmt.Print(">>> ")
> for reader.Scan() {
> switch reader.Text() {
> case "quit":
> if len(g.Goodbye) != 0 {
> fmt.Println(g.Goodbye)
> } else {
> fmt.Println("Goodbye!")
> }
> os.Exit(0)
> default:
> for n, c := range g.Verbs {
> s := g._synonymize(reader.Text())
> switch s {
> case n:
> c()
> default:
> fmt.Println("I beg your pardon?")
> }
> }
> }
> fmt.Print(">>> ")
> }
> }
> }
> --
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