package level import ( "git.kirsle.net/go/render" "github.com/google/uuid" ) // ActorMap holds the doodad information by their ID in the level data. type ActorMap map[string]*Actor // Inflate assigns each actor its ID from the hash map for their self reference. func (m ActorMap) Inflate() { for id, actor := range m { actor.id = id } } // Add a new Actor to the map. If it doesn't already have an ID it will be // given a random UUIDv4 ID. func (m ActorMap) Add(a *Actor) { if a.id == "" { a.id = uuid.Must(uuid.NewUUID()).String() } m[a.id] = a } // Remove an Actor from the map. The ID must be set at the very least, so to // remove by ID just create an Actor{id: x} func (m ActorMap) Remove(a *Actor) bool { if _, ok := m[a.id]; ok { delete(m, a.id) return true } return false } // Actor is an instance of a Doodad in the level. type Actor struct { id string // NOTE: read only, use ID() to access. Filename string `json:"filename"` // like "exit.doodad" Point render.Point `json:"point"` Links []string `json:"links,omitempty"` // IDs of linked actors } // ID returns the actor's ID. func (a *Actor) ID() string { return a.id } // AddLink adds a linked Actor to an Actor. Add the linked actor by its ID. func (a *Actor) AddLink(id string) { // Don't add a duplicate ID to the links array. for _, exist := range a.Links { if exist == id { return } } a.Links = append(a.Links, id) } // Unlink removes the linked actor's ID. func (a *Actor) Unlink(id string) { var newLinks []string for _, exist := range a.Links { if exist == id { continue } newLinks = append(newLinks, exist) } a.Links = newLinks } // IsLinked checks if the actor is linked to the other actor's ID. func (a *Actor) IsLinked(id string) bool { for _, exist := range a.Links { if exist == id { return true } } return false }