undo random scenery placement

1 files changed, 15 insertions, 3 deletions

diff --git a/public/assets/javascripts/rectangles/engine/scenery/randomize.js b/public/assets/javascripts/rectangles/engine/scenery/randomize.js
index 1c2eb56..6581f38 100644
--- a/public/assets/javascripts/rectangles/engine/scenery/randomize.js
+++ b/public/assets/javascripts/rectangles/engine/scenery/randomize.js
@@ -33,7 +33,7 @@ Scenery.randomize.get_dimensions = function (media_objs){
 // Returns a lookup of walls to use, keyed by wall ID.
 Scenery.randomize.get_empty_walls = function(wall_list){
   // get a list of all walls
-  var walls = {};
+  var walls = {}, removed = [];
 
   (wall_list || Walls.list).forEach(function(wall){
     walls[wall.id] = wall
@@ -44,6 +44,7 @@ Scenery.randomize.get_empty_walls = function(wall_list){
     Scenery.forEach(function(scenery){
       if (scenery.was_randomly_placed) {
         // remove it and reuse this wall?
+        removed.push( scenery.serialize() )
         Scenery.remove( scenery.id )
       }
       else {
@@ -52,7 +53,7 @@ Scenery.randomize.get_empty_walls = function(wall_list){
     })
   }
   
-  return walls
+  return { walls: walls, removed: removed }
 }
 
 // Randomly place a set of media objects on empty walls.
@@ -60,7 +61,10 @@ Scenery.randomize.get_empty_walls = function(wall_list){
 // Optionally takes a list of walls to use.
 Scenery.randomize.add = function (media_objs, wall_list) {
   var media_list = Scenery.randomize.get_dimensions(media_objs)
-  var walls = Scenery.randomize.get_empty_walls(wall_list)
+  var empty_data = Scenery.randomize.get_empty_walls(wall_list)
+  var walls = empty_data.walls
+  var removed = empty_data.removed
+  var added = []
   
   var wall_ids = _.keys(walls)
   if (! wall_ids.length) { return }
@@ -93,6 +97,7 @@ Scenery.randomize.add = function (media_objs, wall_list) {
         index: 0,
       })
       scenery.was_randomly_placed = true
+      added.push(scenery.serialize())
     }
     else {
       // artwork won't fit anywhere??
@@ -100,4 +105,11 @@ Scenery.randomize.add = function (media_objs, wall_list) {
   
     return false
   })
+  
+  UndoStack.push({
+    type: "randomize-scenery",
+    undo: { added: added, removed: removed },
+    redo: { added: added, removed: removed },
+  })
+  
 }
\ No newline at end of file