Implement Double Battles (#1)

* Add WiP logic for double battles

* Minor changes for double battles

* More fixes for double battles

* Show battle info for both in double battles

* Improvements to double battles

* Add double battle version of party UI

* Fix some issues with double battles

* Updates to double battles

* More work on double battles for stability

* Fix issues with ability bar and evolution screen

* Add chance for double battles

src/ui/command-ui-handler.ts

@@ -43,7 +43,7 @@ export default class CommandUiHandler extends UiHandler {
     const messageHandler = this.getUi().getMessageHandler();
     messageHandler.bg.setTexture('bg_command');
     messageHandler.message.setWordWrapWidth(1110);
-    messageHandler.showText(`What will\n${this.scene.getPlayerPokemon().name} do?`, 0);
+    messageHandler.showText(`What will\n${(this.scene.getCurrentPhase() as CommandPhase).getPokemon().name} do?`, 0);
     this.setCursor(this.cursor);
   }
 
@@ -65,7 +65,7 @@ export default class CommandUiHandler extends UiHandler {
             success = true;
             break;
           case 2:
-            ui.setMode(Mode.PARTY, PartyUiMode.SWITCH);
+            ui.setMode(Mode.PARTY, PartyUiMode.SWITCH, (this.scene.getCurrentPhase() as CommandPhase).getPokemon().getFieldIndex());
             success = true;
             break;
           case 3: