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use sdl2::pixels::Color;
use sdl2::render::WindowCanvas;
use sdl2::video::{Window, WindowContext};
use specs::prelude::*;
use crate::components::{Pos, StaticDrawable};
use crate::texture_manager::TextureManager;
pub struct SysDraw
{
canvas: WindowCanvas,
texture_manager: TextureManager<WindowContext>,
}
impl SysDraw
{
pub fn new(window: Window) -> Self
{
let mut canvas = window
.into_canvas()
.build()
.expect("Unable to create canvas");
canvas.set_draw_color(Color::RGB(255, 255, 0));
let texture_manager = TextureManager::new(canvas.texture_creator());
Self {
canvas,
texture_manager,
}
}
}
impl<'a> System<'a> for SysDraw
{
type SystemData = (ReadStorage<'a, Pos>, ReadStorage<'a, StaticDrawable>);
fn run(&mut self, (pos, drawable): Self::SystemData)
{
self.canvas.clear();
// XXX: This is so slow.. yaaaawn. Replace with ids and texture manager
// lifetime?
for (_pos, drawable) in (&pos, &drawable).join() {
let texture = self
.texture_manager
.get(&drawable.texture_name)
.expect("Unable to load texture");
// let texture_info = texture.query();
self.canvas
.copy(&texture, None, None)
.expect("Unable to draw texture");
}
self.canvas.present();
}
}
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