diff --git a/core/PApplet.java b/core/PApplet.java
index fc4237e12..52e3ef88b 100644
--- a/core/PApplet.java
+++ b/core/PApplet.java
@@ -3523,17 +3523,13 @@ public class PApplet extends Applet
     switch (sort_mode) {
     case BYTES:
       return sort_bytes[a] - sort_bytes[b];
-      //if (sort_bytes[a] < sort_bytes[b]) return -1;
-      //return (sort_bytes[a] == sort_bytes[b]) ? 0 : 1;
     case CHARS:
       return sort_chars[a] - sort_chars[b];
-      //if (sort_chars[a] < sort_chars[b]) return -1;
-      //return (sort_chars[a] == sort_chars[b]) ? 0 : 1;
     case INTS:
       return sort_ints[a] - sort_ints[b];
-      //if (sort_ints[a] < sort_ints[b]) return -1;
-      //return (sort_ints[a] == sort_ints[b]) ? 0 : 1;
     case FLOATS:
+      // can't just cast to an int because 0.2 and 0.4 would
+      // just appear to be the same thing. no good.
       if (sort_floats[a] < sort_floats[b]) return -1;
       return (sort_floats[a] == sort_floats[b]) ? 0 : 1;
     case STRINGS:
@@ -3549,6 +3545,28 @@ public class PApplet extends Applet
   // ARRAY UTILITIES
 
 
+  /**
+   * Calls System.arraycopy(), included here so that we can
+   * avoid people needing to learn about the System object
+   * before they can just copy an array.
+   */
+  static public void arraycopy(Object src, int srcPosition,
+                               Object dst, int dstPosition,
+                               int length) {
+    System.arraycopy(src, srcPosition, dst, dstPosition, length);
+  }
+
+
+  /**
+   * Shortcut to copy the entire contents of
+   * the source into the destination array.
+   * Identical to <CODE>arraycopy(src, 0, dst, 0, src.length);</CODE>
+   */
+  static public void arraycopy(Object src, Object dst) {
+    System.arraycopy(src, 0, dst, 0, Array.getLength(src));
+  }
+
+
   static public boolean[] expand(boolean list[]) {
     return expand(list, list.length << 1);
   }
diff --git a/core/todo.txt b/core/todo.txt
index e351beffa..3fbc22e7a 100644
--- a/core/todo.txt
+++ b/core/todo.txt
@@ -1,4 +1,6 @@
 0090 core
+X added arraycopy() function that calls System.arraycopy()
+X   also the useful shortcut fxn
 
 
 
@@ -224,18 +226,15 @@ _   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs
 _   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1080342288;start=0
 _ break apart functions into local (placement) and override (blitting)
 _   just have a "thin_flat_line" option in opengl code
-
 _ color
 _   rounding errors on color conversion
 _   colorMode(RGB, 1.0); colorMode(255); println(red(color(0.5,1,1)));
 _   will return 127, instead of 128.
-
 _ curves
 _   non-homogenous coloring for curve vertices
-_   implement curveTangent
+_ implement curveTangent
 _   fix-up the curve_init() and the rest to use matrices
 _     and not have ugly names (i.e. just g.curveDetail is good)
-
 _ ellipse problems
 _   weird ellipse bug with an alpha line in same image
 _     http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1083221401;start=0
@@ -250,12 +249,6 @@ _   ellipses are just plain ugly
 _     http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1073409011;start=0
 _   toxi ellipses don't adapt properly with transformations
 
-_ texture mapping
-_   very odd, "doom era" stuff
-_   would it be possible to have a 'slow but accurate' mode?
-_ bad texture warping
-_   http://processing.org/discourse/yabb_beta/YaBB.cgi?board=SoftwareBugs;action=display;num=1115241346;start=0
-
 
 _ clipping planes
 _   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1058491568;start=0
@@ -311,6 +304,8 @@ g2.draw(gp);
 
 CORE / PGraphics3
 
+_ tesselator/triangulator gets confused when points doubled up
+_   might need to avoid previous vertex hitting itself
 _ polygons perpendicular to axis not drawing
 _   is this a clipping error?
 _   probably a triangulation error, because triangles work ok
@@ -336,6 +331,10 @@ _ also have a simple way to hook in triangle leeches to PGraphics3
 _   this exists, but needs to be documented, or have accessors
 _ add option to sort triangles back to front so alpha works
 _   http://processing.org/discourse/yabb/YaBB.cgi?board=Proce55ing_software_bugs;action=display;num=1076660476;start=0
+_ texture mapping
+_   very odd, "doom era" stuff
+_   would it be possible to have a 'slow but accurate' mode?
+_   http://processing.org/discourse/yabb_beta/YaBB.cgi?board=SoftwareBugs;action=display;num=1115241346;start=0
 
 
 CORE / PImage