Add Sound FX priority

Sfx.HC

@@ -46,6 +46,7 @@ U0 mix_sfx(U32 *buf)
     {
         sfx_pos = 0;
         sfx_num = -1;
+        currently_playing_priority=0;
     }
 
 }
@@ -194,20 +195,9 @@ U0 load_sfx()
 
 U0 play_sfx(I64 sfx_number)
 {
+    if(sfxs[sfx_number-1].priority < currently_playing_priority)
+        return;
+    currently_playing_priority = sfxs[sfx_number-1].priority;
     sfx_pos = 0;
     sfx_num = sfx_number;
-    /*
-    if(sfx_on_flag)
-    {
-        sfx_number--;
-        if(Mix_Playing(0))
-        {
-            if(sfxs[sfx_number].priority < currently_playing_priority)
-                return;
-        }
-
-        currently_playing_priority = sfxs[sfx_number].priority;
-        Mix_PlayChannel(0, sfxs[sfx_number].sample, 0);
-    }
-    */
 }