no-reply@allegro.cc (Vieira) — Mon, 28 Jan 2019 18:58:43 +0000

Hi,
I have the idea of making a menu where I can manually adjust the sound, for example, control the gain of the background sound, or even the sound effects of the game, but I got confused and I think I do not know how to do ...

This is how I defined the sounds

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  1
  2ALLEGRO_SAMPLE *trilha_sonora= NULL;
  3
  4ALLEGRO_SAMPLE_INSTANCE *inst_trilha_sonora=NULL;
  5
  6    trilha_sonora = al_load_sample("trilha_sonora.ogg");
  7    inst_trilha_sonora= al_create_sample_instance(trilha_sonora);
  8    al_attach_sample_instance_to_mixer(inst_trilha_sonora, al_get_default_mixer());
  9    al_set_sample_instance_playmode(inst_trilha_sonora,ALLEGRO_PLAYMODE_LOOP);
 10    al_set_sample_instance_gain(inst_trilha_sonora,0.7);
 11
 12       al_play_sample_instance(inst_trilha_sonora);

Sound