src/gfx/media.rs

   1 use std::collections::HashMap;
   2
   3 #[derive(rust_embed::RustEmbed)]
   4 #[folder = "assets/textures"]
   5 pub struct BaseFolder; // copied from github.com/minetest/minetest
   6
   7 pub struct MediaMgr {
   8     packs: Vec<HashMap<String, Vec<u8>>>,
   9     srv_idx: usize,
  10 }
  11
  12 impl MediaMgr {
  13     pub fn new() -> Self {
  14         Self {
  15             packs: [
  16                 BaseFolder::iter()
  17                     .map(|file| {
  18                         (
  19                             file.to_string(),
  20                             BaseFolder::get(&file).unwrap().data.into_owned(),
  21                         )
  22                     })
  23                     .collect(),
  24                 HashMap::new(),
  25             ]
  26             .into(),
  27             srv_idx: 1,
  28         }
  29     }
  30
  31     pub fn add_server_media(&mut self, files: HashMap<String, Vec<u8>>) {
  32         self.packs[self.srv_idx].extend(files.into_iter());
  33     }
  34
  35     pub fn get(&self, file: &str) -> Option<&[u8]> {
  36         self.packs
  37             .iter()
  38             .rev()
  39             .find_map(|pack| pack.get(file))
  40             .map(Vec::as_slice)
  41     }
  42 }