1 files changed, 14 insertions, 5 deletions
diff --git a/desktop/sources/scripts/history.js b/desktop/sources/scripts/history.js
index 9d3912b..0c16a8a 100644
--- a/desktop/sources/scripts/history.js
+++ b/desktop/sources/scripts/history.js
@@ -14,15 +14,24 @@ function History (terminal, orca = terminal.room) {
   }
 
   this.undo = function () {
+    if (terminal.room.id !== 'lobby') { console.warn('History', 'Outside Lobby'); return }
     if (this.index === 0) { console.warn('History', 'Reached beginning'); return }
+
     this.index = clamp(this.index - 1, 0, this.frames.lengt - 1)
-    // terminal.load(this.frames[this.index], terminal.rooms.lobby.f)
+    this.apply(this.frames[this.index])
   }
 
   this.redo = function () {
+    if (terminal.room.id !== 'lobby') { console.warn('History', 'Outside Lobby'); return }
     if (this.index > this.frames.length - 1) { console.warn('History', 'Reached end'); return }
+
     this.index = clamp(this.index + 1, 0, this.frames.lengt - 1)
-    // terminal.load(this.frames[this.index], terminal.rooms.lobby.f)
+    this.apply(this.frames[this.index])
+  }
+
+  this.apply = function (f) {
+    if (!f || f.length !== terminal.room.s.length) { return }
+    terminal.room.s = this.frames[this.index]
   }
 
   this.reset = function () {
@@ -31,12 +40,12 @@ function History (terminal, orca = terminal.room) {
   }
 
   this.append = function () {
-    // this.frames.push(`${orca}`)
+    this.frames.push(terminal.room.s)
   }
 
   this.fork = function () {
-    // this.frames = this.frames.slice(0, this.index + 1)
-    // this.frames.push(`${orca}`)
+    this.frames = this.frames.slice(0, this.index + 1)
+    this.frames.push(terminal.room.s)
   }
 
   function clamp (v, min, max) { return v < min ? min : v > max ? max : v }