#include #include #include "bgm.h" struct current_bgm_t current_bgm; Sound *load_bgm(const char *filename) { return NULL; } void start_bgm(const char *name) { return; } void stop_bgm(void) { return; } void continue_bgm(void) { return; } void save_bgm(void) { return; } void restore_bgm(void) { return; } int init_bgm(void) { memset(¤t_bgm, 0, sizeof(struct current_bgm_t)); return 0; } void shutdown_bgm(void) { return; } void load_bgm_descriptions(const char *path) { return; } void delete_music(void) { return; } void set_bgm_volume(float gain) { return; }