Fixed: Clearing undo/redo when resetting/loading

Author: PatrickSachs

src/commands/CommandManager.ts

@@ -35,6 +35,14 @@ export default class CommandManager {
         }
     }
 
+    /**
+     * Clears the undo/redo stacks.
+     */
+    public clear() {
+        this._undo = [];
+        this._redo = [];
+    }
+
     /**
      * Redoes the last undone command and removes it from the redo stack. If no command has 
      * been undone before no action is performed.

src/commands/DestroyTreeElementCommand.ts

@@ -40,7 +40,7 @@ export default class DestroyTreeElementCommand implements ICommand {
             if (!owner) {
                 throw new SlowTreeError("Could not un-delete tree element with owner " + this.owner);
             }
-            // A kinda hacky workaround leveraging the fact that the save data strcuture is the
+            // A kinda hacky workaround leveraging the fact that the save data structure is the
             // same as the one used in game.
             // For a larger project a better solution might be warraned, but in this case it does 
             // the job just fine.

src/components/App.vue

@@ -426,6 +426,7 @@ export default class STApp extends Vue {
         const json = JSON.parse(reader.result as string);
         console.log("Uploaded file ...", json);
         try {
+          this.game!.cmd.clear();
           scene.loadGame(json);
           this.cache();
         } catch (error) {
@@ -443,8 +444,9 @@ export default class STApp extends Vue {
    * Called when the user clicks on the delete button.
    */
   onClickDelete() {
-    if (this.scene) {
+    if (this.game && this.scene) {
       this.scene.clear();
+      this.game.cmd.clear();
       this.tree = this.scene.tree.treeType.id;
     }
     localStorage.removeItem("cache");