Function TryPetScriptEvent

internal/scripting/pet.go:33–86

TryPetScriptEvent fires a named event on the pet script (e.g. "onCommand", "PetAct"). userId is the owner of the pet.

(eventName string, userId int)

// TryPetScriptEvent fires a named event on the pet script (e.g. "onCommand", "PetAct").
// userId is the owner of the pet.
func TryPetScriptEvent(eventName string, userId int) (bool, error) {

	user := users.GetByUserId(userId)
	if user == nil {
		return false, fmt.Errorf("user not found")
	}

	if !user.Character.Pet.Exists() {
		return false, fmt.Errorf("user has no pet")
	}

	sPet := GetPet(&user.Character.Pet, userId)
	if sPet == nil {
		return false, fmt.Errorf("pet not found")
	}

	vmw, err := getPetVM(sPet)
	if err != nil {
		return false, err
	}

	timestart := time.Now()
	defer func() {
		mudlog.Debug("TryPetScriptEvent()", "eventName", eventName, "petType", sPet.Type(), "time", time.Since(timestart))
	}()

	if onFunc, ok := vmw.GetFunction(eventName); ok {

		sActor := GetActor(userId, 0)
		sRoom := GetRoom(sActor.GetRoomId())

		userTextWrap.Set(`script-text`, ``, ``)
		roomTextWrap.Set(`script-text`, ``, ``)

		res, err := runCallable(vmw, scriptPetTimeout, onFunc,
			vmw.VM.ToValue(sPet),
			vmw.VM.ToValue(sActor),
			vmw.VM.ToValue(sRoom),
		)

		userTextWrap.Reset()
		roomTextWrap.Reset()

		if err != nil {
			return false, fmt.Errorf("%s(): %w", eventName, err)
		}

		if boolVal, ok := res.Export().(bool); ok {
			return boolVal, nil
		}
	}

	return false, ErrEventNotFound
}

// TryPetCommand checks whether the pet script intercepts a command typed by its owner.
func TryPetCommand(cmd string, rest string, userId int) (bool, error) {