FEAT: reset layer frame count if missing layer image

out.go

@@ -112,13 +112,13 @@ Splash2len=%d
 	// loop through folders
 	roomcredits := []string{}
 	for _, roomFolder := range roomFolders {
-		err := copyFolder(roomFolder, outpath)
+		err := copyFolder(&roomFolder, outpath)
 		if err != nil {
 			return fmt.Errorf("error copying folder %s: %+v", roomFolder.Path, err)
 		}
 		inistr.WriteString(roomFolder.Cfg.ToIni())
 
-		roomFolder, err = checkCredits(roomFolder);
+		err = checkCredits(&roomFolder);
 		if err != nil {
 			return fmt.Errorf("error checking credits in folder %s: %+v", roomFolder.Path, err)
 		}
@@ -146,7 +146,7 @@ Splash2len=%d
 }
 
 // doesn't error currently
-func checkCredits(roomFolder RoomFolder) (RoomFolder, error) {
+func checkCredits(roomFolder *RoomFolder) error {
 	if roomFolder.Cfg.name == "" {
 		log.Println("WARNING: room config has no name, defaulting to folder name")
 		foldername := filepath.Base(roomFolder.Path)
@@ -157,10 +157,10 @@ func checkCredits(roomFolder RoomFolder) (RoomFolder, error) {
 		log.Println("WARNING: room config has no credits")
 	}
 
-	return roomFolder, nil
+	return nil
 }
 
-func copyFolder(roomFolder RoomFolder, outpath string) error {
+func copyFolder(roomFolder *RoomFolder, outpath string) error {
 	nightdir := fmt.Sprintf("NIGHT_%d", roomFolder.Cfg.night)
 	roomdir := fmt.Sprintf("ROOM_%d", roomFolder.Cfg.room)
 
@@ -234,6 +234,13 @@ func copyFolder(roomFolder RoomFolder, outpath string) error {
 			} else {
 				png.Encode(f, transparent)
 			}
+
+			// ensure layer_frames is 1 if it's not included
+			if strings.ToUpper(imagename) == "LAYER" && roomFolder.Cfg.layerFrames != 1 {
+				log.Printf( "WARNING: room was configured to have %d layer frames, but no LAYER image exists", roomFolder.Cfg.layerFrames)
+				log.Println("WARNING:      setting layer_frames=1")
+				roomFolder.Cfg.layerFrames = 1
+			}
 		}
 	}