Integrate battles with normal scene call method

* Add eBattle enum values
* Still set Game_Temp::battle_calling to handle transitions correctly

src/game_interpreter.cpp

@@ -3079,8 +3079,7 @@ void Game_Interpreter::ResetSceneCalling() {
 }
 
 bool Game_Interpreter::IsImmediateCall() {
-	return scene_call != Scene::Null
-		|| Game_Temp::battle_calling;
+	return scene_call != Scene::Null;
 };
 
 // Dummy Continuations

src/game_interpreter_map.cpp

@@ -258,7 +258,7 @@ bool Game_Interpreter_Map::CommandEnemyEncounter(RPG::EventCommand const& com) {
 		Game_Battle::SetBattleMode(com.parameters[6]); // 0 normal, 1 initiative, 2 surround, 3 back attack, 4 pincer
 
 	Game_Temp::battle_result = Game_Temp::BattleVictory;
-	Game_Temp::battle_calling = true;
+	scene_call = Scene::Battle;
 
 	SetContinuation(static_cast<ContinuationFunction>(&Game_Interpreter_Map::ContinuationEnemyEncounter));
 	return false;

src/scene_map.cpp

@@ -196,6 +196,9 @@ void Scene_Map::Update() {
 		if (Main_Data::game_data.party_location.menu_calling || force_menu_calling) {
 			call = Scene::Menu;
 		}
+		if (Game_Temp::battle_calling) {
+			call = Scene::Battle;
+		}
 
 		Game_Interpreter::ResetSceneCalling();
 		switch (call) {
@@ -214,14 +217,12 @@ void Scene_Map::Update() {
 			case Scene::Load:
 				CallLoad();
 				break;
+			case Scene::Battle:
+				CallBattle();
+				break;
 			default:
 				break;
 		}
-
-		if (Game_Temp::battle_calling) {
-			CallBattle();
-			return;
-		}
 	}
 }
 
@@ -255,6 +256,7 @@ void Scene_Map::FinishTeleportPlayer() {
 // Scene calling stuff.
 
 void Scene_Map::CallBattle() {
+	Game_Temp::battle_calling = true;
 	Main_Data::game_data.system.before_battle_music = Game_System::GetCurrentBGM();
 	Game_System::SePlay(Game_System::GetSystemSE(Game_System::SFX_BeginBattle));
 	Game_System::BgmPlay(Game_System::GetSystemBGM(Game_System::BGM_Battle));