34 lines
951 B
Rust
34 lines
951 B
Rust
use super::{BlocksTile, Map, Position};
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use specs::prelude::*;
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pub struct MapIndexingSystem {}
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impl<'a> System<'a> for MapIndexingSystem {
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type SystemData = (
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WriteExpect<'a, Map>,
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ReadStorage<'a, Position>,
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ReadStorage<'a, BlocksTile>,
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Entities<'a>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (mut map, position, blockers, entities) = data;
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map.populate_blocked();
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map.clear_content_index();
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for (entity, position) in (&entities, &position).join() {
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let idx = map.xy_idx(position.x, position.y);
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// If it's a blocking entity, note that in the map object
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let _p: Option<&BlocksTile> = blockers.get(entity);
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if let Some(_p) = _p {
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map.blocked[idx] = true;
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}
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// Push a copy of the entity to the indexed slot
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map.tile_content[idx].push(entity);
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}
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}
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}
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