Pac-Man/tests/common/mod.rs

#![allow(dead_code)]

use pacman::{
    asset::{get_asset_bytes, Asset},
    texture::sprite::SpriteAtlas,
};
use sdl2::{
    image::LoadTexture,
    render::{Canvas, Texture, TextureCreator},
    video::{Window, WindowContext},
    Sdl,
};

pub fn setup_sdl() -> Result<(Canvas<Window>, TextureCreator<WindowContext>, Sdl), String> {
    let sdl_context = sdl2::init()?;
    let video_subsystem = sdl_context.video()?;
    let window = video_subsystem
        .window("test", 800, 600)
        .position_centered()
        .hidden()
        .build()
        .map_err(|e| e.to_string())?;
    let canvas = window.into_canvas().build().map_err(|e| e.to_string())?;
    let texture_creator = canvas.texture_creator();
    Ok((canvas, texture_creator, sdl_context))
}

pub fn create_atlas(canvas: &mut sdl2::render::Canvas<sdl2::video::Window>) -> SpriteAtlas {
    let texture_creator = canvas.texture_creator();
    let atlas_bytes = get_asset_bytes(Asset::Atlas).unwrap();
    let atlas_json = get_asset_bytes(Asset::AtlasJson).unwrap();

    let texture = texture_creator.load_texture_bytes(&atlas_bytes).unwrap();
    let texture: Texture<'static> = unsafe { std::mem::transmute(texture) };

    let mapper: pacman::texture::sprite::AtlasMapper = serde_json::from_slice(&atlas_json).unwrap();

    SpriteAtlas::new(texture, mapper)
}