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#[derive(Clone, Copy, Debug)]
pub struct AudioProperties {
    pub volume: f32,
}

impl Default for AudioProperties {
    fn default() -> Self {
        Self { volume: 1. }
    }
}

impl AudioProperties {
    pub fn with_volume(self, volume: f32) -> Self {
        Self { volume, ..self }
    }
}

pub trait AudioPlayer {
    type Sound;
    fn play(&self, sound: &Self::Sound, properties: AudioProperties);
    fn load_sound(&self, bytes: &'static [u8]) -> Self::Sound;
}

impl<A: AudioPlayer> AudioPlayer for Option<A> {
    type Sound = &'static [u8];
    fn play(&self, sound: &Self::Sound, properties: AudioProperties) {
        if let Some(player) = self.as_ref() {
            let sound = player.load_sound(sound);
            player.play(&sound, properties);
        }
    }
    fn load_sound(&self, bytes: &'static [u8]) -> Self::Sound {
        bytes
    }
}