rltk-hello-rust/src/visibility_system.rs

15 lines
401 B
Rust

extern crate specs;
use specs::prelude::*;
use super::{Viewshed, Position};
pub struct VisibilitySystem {}
impl<'a> System<'a> for VisibilitySystem {
type SystemData = ( WriteStorage<'a, Viewshed>,
WriteStorage<'a, Position>);
fn run(&mut self, (mut viewshed, pos) : Self::SystemData) {
for (viewshed,pos) in (&mut viewshed, &pos).join() {
}
}
}