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roguelike-game/src/map_indexing_system.rs

27 lines
713 B
Rust

use ::specs::prelude::*;
use crate::{spatial, BlocksTile, Map, Position};
pub struct MapIndexingSystem {}
impl<'a> System<'a> for MapIndexingSystem {
type SystemData = (
ReadExpect<'a, Map>,
ReadStorage<'a, Position>,
ReadStorage<'a, BlocksTile>,
Entities<'a>,
);
fn run(&mut self, data: Self::SystemData) {
let (map, position, blockers, entities) = data;
spatial::clear();
spatial::populate_blocked_from_map(&*map);
for (entity, position) in (&entities, &position).join() {
let idx = map.xy_idx(position.x, position.y);
spatial::index_entity(entity, idx, blockers.get(entity).is_some());
}
}
}