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- package main
- import (
- "fmt"
- "github.com/beanzilla/gonode"
- "golang.org/x/exp/slices"
- )
- type TravelPath struct {
- N_Path *gonode.Node `json:"-"`
- N_Destination *gonode.Node `json:"-"`
- Path []string `json:"path"`
- Destination string `json:"destination"`
- }
- func (t *TravelPath) String() string {
- result := ""
- for _, path := range t.Path {
- if result != "" {
- result += " > "
- }
- result += path
- }
- if result != "" {
- result += " >> "
- }
- result += t.Destination
- return result
- }
- func (t *TravelPath) Parse(n *gonode.Node) error {
- txt := fmt.Sprintf("%v", n.Data())
- switch Key(txt) {
- case "playtime":
- if !n.HasTag("insert", "travel") {
- n.AddTag("insert", "travel")
- }
- case "travel":
- if t.N_Path == nil {
- t.N_Path = n.Parent()
- }
- t.Path = append(t.Path, Value(txt))
- if !n.HasTag("replace", "travel") {
- n.AddTag("replace", "travel")
- }
- case "travel destination":
- t.N_Destination = n
- t.Destination = Value(txt)
- }
- return nil
- }
- func (t *TravelPath) Update() error {
- if t.N_Path == nil {
- return fmt.Errorf("missing node(s), can't update")
- }
- replaced := false
-
-
- for _, path := range t.Path {
- replaced = false
- idx := 0
- FIND_A_NODE:
- for kid := range t.N_Path.Iter() {
- if kid.HasTag("replace", "travel") {
- kid.SetData(fmt.Sprintf("travel %s", Format(path)))
- kid.RmTag("replace", "travel")
- replaced = true
- break FIND_A_NODE
- }
- idx += 1
- }
- if !replaced {
- t.N_Path.NewChildWithData(fmt.Sprintf("travel %s", Format(path)))
- }
- }
-
- idxs := []int{}
- idx := 0
- for idx != -1 {
- idx = t.N_Path.ChildIndexByTag("replace", "travel")
- if !slices.Contains(idxs, idx) {
- idxs = append(idxs, idx)
- } else {
- break
- }
- }
- t.N_Path.RmChild(idxs...)
-
- if t.Destination != "" && t.N_Destination != nil {
-
- t.N_Destination.SetData(fmt.Sprintf("%s %s", Format("travel destination"), Format(t.Destination)))
- } else if t.Destination == "" && t.N_Destination != nil {
-
- t.N_Destination.Detach()
- t.N_Destination.Destroy()
- } else if t.Destination != "" && t.N_Destination == nil {
-
- t.N_Path.NewChildWithData(fmt.Sprintf("%s %s", Format("travel destination"), Format(t.Destination)))
- }
- return nil
- }
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