added save-function, rearranged data folder, updated README

Notebook.pde

@@ -6,7 +6,7 @@ class Notebook {
   int id;
   Notebook(int id_, String notebookpath_, String[] imagepaths_) {
     id = id_;
-    notebookpath = dataPath("") + "/" + notebookpath_;
+    notebookpath = dataPath("") + "/Notizhefte/" + notebookpath_;
     imagepaths = Arrays.copyOfRange(imagepaths_, 1, imagepaths_.length-1);
     String[] separated = notebookpath_.split("-");
     dateText = (getMonth(int(separated[1])) + " " + separated[0]);
@@ -49,12 +49,12 @@ String getMonth(int id) {
 ArrayList<Notebook> notebooks = new ArrayList<Notebook>();
 
 void createNotebooks() {
-  File datafolder = new File(dataPath(""));
+  File datafolder = new File(dataPath("") + "/Notizhefte");
   String[] notebooknames = datafolder.list();
   notebooknames = sort(notebooknames);
   int notebookID = 0;
   for (int i = 0; i < notebooknames.length; i++) {
-    File notebookfolder = new File(dataPath("") + "/" + notebooknames[i]);
+    File notebookfolder = new File(dataPath("") + "/Notizhefte/" + notebooknames[i]);
     if (notebookfolder.list() != null) {
       String[] imagenames = notebookfolder.list();
       List<String> strings = Arrays.asList(imagenames);

README.md

@@ -1,3 +1,3 @@
 ## Notizheftanzeiger  
 Mit Processing 3 oder 4 zu öffnen und auszuführen  
-Benötigt ordner "data" mit Notizheftdaten  
+Benötigt ordner "Notizhefte" im Ordner "data"  

data/save.sav

@@ -0,0 +1,2 @@
+0
+8

notizheftanzeiger.pde

@@ -16,12 +16,16 @@ int startTransitionTime;
 float transitionProgress;
 final static int NORMAL = 0;
 final static int RANDOM = 1;
-
+String[] save;
 
 void setup() {
   //fullScreen(); //if using fullScreen, comment the next line
   size(960, 540);
   fill(255);
+  save = loadStrings(dataPath("") + "/save.sav");
+  currentNotebookNo = int(save[0]);
+  currentSlideNo = int(save[1]);
+
   if (displayTimeline) {
     textSize(20);
     textAlign(CENTER);
@@ -44,6 +48,11 @@ void draw() {
     tint(255, transitionProgress);
     image(nextSlide, 0, 0, width, height);
     if (millis() - startTransitionTime > transitionTime) {
+
+      save[0] = str(currentNotebookNo);
+      save[1] = str(currentSlideNo);
+      saveStrings(dataPath("") + "/save.sav", save);
+
       currentSlide = nextSlide;
       transitionProgress = 0;
       transition = false;