From 90cb5b343f3d56372f9b43faf215ed80dd879fe1 Mon Sep 17 00:00:00 2001 From: Jules Laplace Date: Wed, 13 Aug 2014 16:12:02 -0400 Subject: undo for scenery stuff --- public/assets/javascripts/rectangles/util/undo.js | 52 ----------------------- 1 file changed, 52 deletions(-) delete mode 100644 public/assets/javascripts/rectangles/util/undo.js (limited to 'public/assets/javascripts/rectangles/util/undo.js') diff --git a/public/assets/javascripts/rectangles/util/undo.js b/public/assets/javascripts/rectangles/util/undo.js deleted file mode 100644 index dfc74dc..0000000 --- a/public/assets/javascripts/rectangles/util/undo.js +++ /dev/null @@ -1,52 +0,0 @@ -(function(){ - - var UndoStack = function(){ - this.debug = true - 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.debug && console.log("undo", action.type) - this.types[ action.type ].undo(action.prev) - 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.debug && console.log("redo", action.type) - this.types[ action.type ].redo(action.next) - return this.pointer < this.stack.length-1 - } - UndoStack.prototype.register = function(actionType){ - if (actionType.length) { - actionType.forEach(this.registerOne.bind(this)) - } - else { - this.registerOne(actionType) - } - } - UndoStack.prototype.registerOne = function(actionType){ - this.types[ actionType.type ] = actionType - } - if ('window' in this) { - window.UndoStack = new UndoStack - } - else { - module.exports = new UndoStack - } - -})() -- cgit v1.2.3-70-g09d2