1 files changed, 0 insertions, 42 deletions
diff --git a/public/assets/javascripts/rectangles/util/undo.js b/public/assets/javascripts/rectangles/util/undo.js
deleted file mode 100644
index 3700817..0000000
--- a/public/assets/javascripts/rectangles/util/undo.js
+++ /dev/null
@@ -1,42 +0,0 @@
-(function(){
-
-  var UndoStack = function(){
-    this.stack = []
-    this.types = {}
-    this.pointer = -1
-  }
-  UndoStack.prototype.push = function(action){
-    this.pointer++
-    this.stack[this.pointer] = action
-    this.purge()
-  }
-  UndoStack.prototype.purge = function(){
-    if (this.stack.length-1 == this.pointer) return
-    this.stack.length = this.pointer+1
-  }
-  UndoStack.prototype.undo = function(){
-    if (this.pointer == -1) return false
-    var action = this.stack[this.pointer]
-    this.types[ action.type ].undo(action)
-    this.pointer--
-    return this.pointer > -1
-  }
-  UndoStack.prototype.redo = function(){
-    if (this.pointer == this.stack.length-1) return false
-    this.pointer++
-    var action = this.stack[this.pointer]
-    this.types[ action.type ].redo(action)
-    return this.pointer < this.stack.length-1
-  }
-  UndoStack.prototype.register = function(actionType){
-    this.types[ actionType.type ] = actionType
-  }
-  
-  if ('window' in this) {
-    window.UndoStack = new UndoStack
-  }
-  else {
-    module.exports = new UndoStack
-  }
-
-})()