use serde_derive::{Deserialize, Serialize};
use vek::*;

// Crate
use crate::vol::Vox;

#[derive(Copy, Clone, Debug, PartialEq, Serialize, Deserialize)]
pub struct Block {
    kind: u8,
    color: [u8; 3],
}

impl Block {
    pub fn new(kind: u8, color: Rgb<u8>) -> Self {
        Self {
            kind,
            color: color.into_array(),
        }
    }

    pub fn get_color(&self) -> Option<Rgb<u8>> {
        if self.is_empty() {
            None
        } else {
            Some(self.color.into())
        }
    }

    pub fn get_opacity(&self) -> Option<f32> {
        match self.kind {
            0 => None,
            1 => Some(0.85),
            2 => Some(1.0),
            _ => unimplemented!(),
        }
    }
}

impl Vox for Block {
    fn empty() -> Self {
        Self {
            kind: 0,
            color: [0; 3],
        }
    }

    fn is_empty(&self) -> bool {
        self.kind == 0
    }
}