Noah Petherbridge
87416f9740
* On the Doodads tab is the Link button to enter the Link Tool. * Click Link, then click the 1st doodad on the level, then click the 2nd doodad to complete the link. * The actors struct in the Level holds the link IDs for each actor.
60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package level
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import (
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"git.kirsle.net/apps/doodle/lib/render"
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uuid "github.com/satori/go.uuid"
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)
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// ActorMap holds the doodad information by their ID in the level data.
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type ActorMap map[string]*Actor
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// Inflate assigns each actor its ID from the hash map for their self reference.
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func (m ActorMap) Inflate() {
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for id, actor := range m {
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actor.id = id
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}
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}
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// Add a new Actor to the map. If it doesn't already have an ID it will be
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// given a random UUIDv4 ID.
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func (m ActorMap) Add(a *Actor) {
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if a.id == "" {
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a.id = uuid.Must(uuid.NewV4()).String()
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}
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m[a.id] = a
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}
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// Remove an Actor from the map. The ID must be set at the very least, so to
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// remove by ID just create an Actor{id: x}
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func (m ActorMap) Remove(a *Actor) bool {
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if _, ok := m[a.id]; ok {
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delete(m, a.id)
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return true
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}
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return false
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}
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// Actor is an instance of a Doodad in the level.
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type Actor struct {
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id string // NOTE: read only, use ID() to access.
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Filename string `json:"filename"` // like "exit.doodad"
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Point render.Point `json:"point"`
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Links []string `json:"links,omitempty"` // IDs of linked actors
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}
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// ID returns the actor's ID.
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func (a *Actor) ID() string {
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return a.id
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}
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// AddLink adds a linked Actor to an Actor. Add the linked actor by its ID.
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func (a *Actor) AddLink(id string) {
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// Don't add a duplicate ID to the links array.
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for _, exist := range a.Links {
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if exist == id {
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return
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}
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}
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a.Links = append(a.Links, id)
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}
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