Torjus Håkestad
aa569aac16
Zork-style dungeon crawler set in an abandoned data center / medieval dungeon. 11 rooms, 6 items, 3 puzzles (dark room, locked door, maintenance panel), standard text adventure parser with verb aliases and direction shortcuts. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
107 lines
2.2 KiB
Go
107 lines
2.2 KiB
Go
package adventure
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import "strings"
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type parsedCommand struct {
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verb string
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object string
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}
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// directionAliases maps shorthand and full direction names to canonical forms.
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var directionAliases = map[string]string{
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"n": "north",
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"s": "south",
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"e": "east",
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"w": "west",
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"u": "up",
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"d": "down",
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"north": "north",
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"south": "south",
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"east": "east",
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"west": "west",
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"up": "up",
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"down": "down",
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}
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// verbAliases maps aliases to canonical verbs.
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var verbAliases = map[string]string{
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"look": "look",
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"l": "look",
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"examine": "look",
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"inspect": "look",
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"x": "look",
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"go": "go",
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"move": "go",
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"walk": "go",
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"take": "take",
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"get": "take",
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"grab": "take",
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"pick": "take",
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"drop": "drop",
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"put": "drop",
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"use": "use",
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"apply": "use",
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"inventory": "inventory",
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"inv": "inventory",
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"i": "inventory",
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"help": "help",
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"?": "help",
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"quit": "quit",
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"exit": "quit",
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"logout": "quit",
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"q": "quit",
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}
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// articles are stripped from input.
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var articles = map[string]bool{
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"the": true,
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"a": true,
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"an": true,
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}
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// parseCommand parses raw input into a verb and object.
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func parseCommand(input string) parsedCommand {
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input = strings.TrimSpace(strings.ToLower(input))
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if input == "" {
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return parsedCommand{}
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}
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words := strings.Fields(input)
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// Strip articles.
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var filtered []string
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for _, w := range words {
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if !articles[w] {
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filtered = append(filtered, w)
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}
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}
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if len(filtered) == 0 {
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return parsedCommand{}
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}
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first := filtered[0]
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// Bare direction → go <direction>.
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if dir, ok := directionAliases[first]; ok {
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return parsedCommand{verb: "go", object: dir}
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}
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// Known verb alias.
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if verb, ok := verbAliases[first]; ok {
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object := ""
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if len(filtered) > 1 {
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object = strings.Join(filtered[1:], " ")
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// Resolve direction alias in object for "go north" etc.
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if verb == "go" {
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if dir, ok := directionAliases[object]; ok {
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object = dir
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}
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}
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}
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return parsedCommand{verb: verb, object: object}
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}
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// Unknown verb — return as-is so game can give an error.
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return parsedCommand{verb: first, object: strings.Join(filtered[1:], " ")}
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}
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