+static void player__clear_sfx_buffer(void);
+static void player__networked_sfx( u8 system, u8 priority, u8 id,
+ v3f pos, f32 volume );
+static void net_sfx_exchange( bitpack_ctx *ctx, struct net_sfx *sfx );
+static void net_sfx_play( struct net_sfx *sfx );
+