Increased number of audio channels to 14 (#409)

include/audio_utils.h

@@ -40,6 +40,13 @@
  */
 #define SFX_DEFAULT_PAN MM_PAN_CENTER
 
+/**
+ * @def GBAL_MM_NUM_CHANNELS
+ * The number of audio channels to allocate for maxmod,
+ * passed to mmInitDefault()
+ */
+#define GBAL_MM_NUM_CHANNELS 14
+
 /**
  * @brief Play a sound effect, wrapper for mmEffectEx()
  * See https://maxmod.org/ref/functions/mm_sound_effect.html

source/main.c

@@ -17,6 +17,7 @@
 #include "background_gfx.h"
 
 // Audio
+#include "audio_utils.h"
 #include "soundbank.h"
 #include "soundbank_bin.h"
 
@@ -83,7 +84,7 @@ void init()
                   DCNT_WIN1;
 
     // Initialize subsystems
-    mmInitDefault((mm_addr)soundbank_bin, 12);
+    mmInitDefault((mm_addr)soundbank_bin, GBAL_MM_NUM_CHANNELS);
     affine_background_init();
     sprite_init();
     card_init();