change method name

src/shapes/Sprite.js

@@ -87,7 +87,7 @@
                 index = this.frameIndex(),
                 ix4 = index * 4,
                 set = this.getAnimations()[anim],
-                offsets = this.getOffsets(),
+                offsets = this.frameOffsets(),
                 x =      set[ix4 + 0],
                 y =      set[ix4 + 1],
                 width =  set[ix4 + 2],
@@ -109,11 +109,18 @@
                 index = this.frameIndex(),
                 ix4 = index * 4,
                 set = this.getAnimations()[anim],
+                offsets = this.frameOffsets(),
                 width =  set[ix4 + 2],
                 height = set[ix4 + 3];
 
             context.beginPath();
+            if (offsets) {
+                var offset = offsets[anim];
+                var ix2 = index * 2;
+                context.rect(offset[ix2 + 0], offset[ix2 + 1], width, height);
+            } else {
                 context.rect(0, 0, width, height);
+            }
             context.closePath();
             context.fillShape(this);
         },
@@ -233,7 +240,7 @@
      * });
      */
 
- Kinetic.Factory.addGetterSetter(Kinetic.Sprite, 'offsets');
+    Kinetic.Factory.addGetterSetter(Kinetic.Sprite, 'frameOffsets');
 
     /**
     * get/set offsets map