From e215fbd5b67f44957d85be11ec5f9ac9a0ff0f36 Mon Sep 17 00:00:00 2001
From: freezarite <markus.roth2001@yahoo.de>
Date: Tue, 28 Jan 2025 19:40:14 +0100
Subject: [PATCH] instance changes in constructor and .cpp file for
 SoundManager

---
 include/SoundManager.h | 7 ++++++-
 src/SoundManager.cpp   | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/SoundManager.h b/include/SoundManager.h
index 922f67f..de7cd47 100644
--- a/include/SoundManager.h
+++ b/include/SoundManager.h
@@ -23,7 +23,12 @@ class SoundManager
 	public:
 
 		SoundManager() {
-			this_instance = this;
+			if (this_instance == nullptr) {
+				this_instance = this;
+			}
+			else {
+				throw std::runtime_error("SoundManager instance already exists!");
+			}
 		}
 		~SoundManager() {
 			for (auto& it : this->sound_cache) {
diff --git a/src/SoundManager.cpp b/src/SoundManager.cpp
index 15475f4..fb61796 100644
--- a/src/SoundManager.cpp
+++ b/src/SoundManager.cpp
@@ -185,6 +185,8 @@ void SoundManager::addBackgroundMusic(const std::map<BackgroundMusic, const char
 		addSingleBackgroundMusic(track.first, track.second);
 }
 
+SoundManager* SoundManager::this_instance = nullptr;
+