From 7047e9a8d4d136457f6c5577f9113d6062d127f9 Mon Sep 17 00:00:00 2001
From: arekrataj <arkadiusz.rataj@gmail.com>
Date: Thu, 25 Jan 2018 12:29:17 +0100
Subject: [PATCH] Fix for UNDO feature in P_2_3_3_01_TABLET_TOOL

The method 'undoDrawItems' (line 201) didn't update the value of 'theUndoIndex' variable.
---
 .../P_2_3_3_01_TABLET_TOOL.pde                | 53 ++-----------------
 1 file changed, 5 insertions(+), 48 deletions(-)

diff --git a/01_P/P_2_3_3_01_TABLET_TOOL/P_2_3_3_01_TABLET_TOOL.pde b/01_P/P_2_3_3_01_TABLET_TOOL/P_2_3_3_01_TABLET_TOOL.pde
index abc0e40..b51c55c 100644
--- a/01_P/P_2_3_3_01_TABLET_TOOL/P_2_3_3_01_TABLET_TOOL.pde
+++ b/01_P/P_2_3_3_01_TABLET_TOOL/P_2_3_3_01_TABLET_TOOL.pde
@@ -168,7 +168,7 @@ void keyReleased() {
   }
 
   if (key == 'z' || key == 'Z') {
-    undoDrawItems(undoIndex);
+    undoIndex = undoDrawItems(undoIndex);
     reDrawAllDrawItems();
   }
 }
@@ -198,56 +198,13 @@ void reDrawAllDrawItems() {
   } 
 }
 
-void undoDrawItems(int theUndoIndex) {
+int undoDrawItems(int theUndoIndex) {
   theUndoIndex -= 1; 
   if (drawItems.size() > 0 && theUndoIndex >= 0) {
     for (int i = drawItems.size()-1; i > theUndoIndex; i--) {
       drawItems.remove(i);
     }
   }
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+  
+  return theUndoIndex;
+}
\ No newline at end of file