Struct MobLayerEvent 

pub struct MobLayerEvent<'a> {
    pub mob: &'a MobRender<'a>,
    pub who: Option<&'a PlayerRender<'a>>,
    pub parts: Option<&'a PosedParts>,
    pub draw: &'a mut dyn BlockEntityDrawContext,
}

What Hooks::mob_layer is told. Each field is that hook’s argument of the same name, described in the hook’s doc.

Fields

mob: &'a MobRender<'a>

who: Option<&'a PlayerRender<'a>>

parts: Option<&'a PosedParts>

draw: &'a mut dyn BlockEntityDrawContext