feat: sound

- add SoundManager class to handle bgm and sfx
- add script to generate wav sound assets
- integrate sfx for shop purchases and player transform
- add dynamic bgm switching based on player state
- add sound file paths and volume configurations to settings

src/create_game_sounds.py

@@ -0,0 +1,38 @@
+import wave, struct, math, os, random
+
+"""
+run once to get sounds generated - KI helped here to do this!
+"""
+
+SOUND_DIR = "../assets/sounds"
+
+def save_wav(filename, data):
+    if not os.path.exists(SOUND_DIR):
+        os.makedirs(SOUND_DIR)
+
+    path = os.path.join(SOUND_DIR, filename)
+
+    with wave.open(path, 'w') as f:
+        f.setnchannels(1)
+        f.setsampwidth(2)
+        f.setframerate(44100)
+        for s in data:
+            # Den Soundwert in das richtige Format (16-bit PCM) umwandeln
+            f.writeframesraw(struct.pack('<h', int(s * 32767)))
+
+def gen(dur, func, vol=0.4):
+    num_samples = int(dur * 44100)
+    return [func(i/44100, i) * vol * min(1.0, (num_samples-i)/(4410*dur)) for i in range(num_samples)]
+
+print(f"Das Skript liegt in 'src', speichert aber nach: {os.path.abspath(SOUND_DIR)}")
+
+save_wav("bgm_normal.wav", gen(10.0, lambda t, i: (math.sin(2*math.pi*110*t) + math.sin(2*math.pi*440*t)*0.2)/2, 0.2))
+save_wav("bgm_creepy.wav", gen(10.0, lambda t, i: math.sin(2*math.pi*(60+5*math.sin(t))*t), 0.2))
+save_wav("tower_shoot.wav", gen(0.15, lambda t, i: 1.0 if math.sin(2*math.pi*1200*(1-t*5)*t) > 0 else -1.0, 0.1))
+save_wav("monster_hit.wav", gen(0.1, lambda t, i: random.uniform(-1, 1), 0.3))
+save_wav("buy_success.wav", gen(0.3, lambda t, i: math.sin(2*math.pi*(660 if t<0.1 else 880)*t)))
+save_wav("buy_fail.wav", gen(0.4, lambda t, i: math.sin(2*math.pi*120*t) * (1+math.sin(40*t))))
+save_wav("monster_healed.wav", gen(0.8, lambda t, i: math.sin(2*math.pi*(440+800*t**2)*t)))
+save_wav("monster_transform.wav", gen(1.2, lambda t, i: math.sin(2*math.pi*(200-150*t)*t) * random.uniform(0.5, 1.0)))
+
+print("Fertig! Schau jetzt in deinem Hauptverzeichnis unter assets/sounds nach.")