expect() with formatting -> unwrap_or_else()
[kaka/rust-sdl-test.git] / src / sprites.rs
1 use std::collections::HashMap;
2
3 use sdl2::image::LoadTexture;
4 use sdl2::render::Texture;
5 use sdl2::render::TextureCreator;
6 use sdl2::video::WindowContext;
7
8 pub struct SpriteManager {
9     texture_creator: TextureCreator<WindowContext>, // can't make the lifetimes work when this is owned instead of borrowed
10     textures: HashMap<&'static str, Texture>,
11 }
12
13 impl SpriteManager {
14     pub fn new(texture_creator: TextureCreator<WindowContext>) -> SpriteManager {
15         SpriteManager {
16             texture_creator,
17             textures: HashMap::new(),
18         }
19     }
20
21     pub fn load(&mut self, name: &'static str, file: &str) {
22         self.textures.insert(name, self.texture_creator.load_texture(file).unwrap());
23     }
24
25     pub fn get(&self, name: &str) -> &Texture {
26         self.textures.get(name).unwrap_or_else(|| panic!("The sprite '{}' was not found", name))
27     }
28 }