undo stack for undo/redo

1 files changed, 4 insertions, 0 deletions

diff --git a/public/assets/javascripts/rectangles/models/rect.js b/public/assets/javascripts/rectangles/models/rect.js
index 58469bc..0642a65 100644
--- a/public/assets/javascripts/rectangles/models/rect.js
+++ b/public/assets/javascripts/rectangles/models/rect.js
@@ -39,6 +39,10 @@
 	Rect.prototype.clone = function(){
 		return new Rect( this.x.clone(), this.y.clone() )
 	}
+	Rect.prototype.assign = function(r) {
+	  this.x.copy(r.x)
+	  this.y.copy(r.y)
+	}
 	Rect.prototype.center = function(){
 		return new vec2(this.x.midpoint(), this.y.midpoint())
 	}