43 lines
1.3 KiB
Rust
43 lines
1.3 KiB
Rust
use super::{Map, Monster, Name, Position, Viewshed};
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use rltk::{console, Point};
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use specs::prelude::*;
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pub struct MonsterAI {}
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impl<'a> System<'a> for MonsterAI {
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#[allow(clippy::type_complexity)]
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type SystemData = (
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WriteExpect<'a, Map>,
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ReadExpect<'a, Point>,
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WriteStorage<'a, Viewshed>,
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ReadStorage<'a, Monster>,
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ReadStorage<'a, Name>,
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WriteStorage<'a, Position>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (mut map, player_pos, mut viewshed, monster, name, mut position) = data;
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for (mut viewshed, _monster, name, mut pos) in
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(&mut viewshed, &monster, &name, &mut position).join()
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{
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if viewshed.visible_tiles.contains(&*player_pos) {
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console::log(&format!("{} shouts insults", name.name));
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let path = rltk::a_star_search(
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map.xy_idx(pos.x, pos.y) as i32,
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map.xy_idx(player_pos.x, player_pos.y) as i32,
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&mut *map,
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);
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if path.success && path.steps.len() > 1 {
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pos.x = path.steps[1] as i32 % map.width;
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pos.y = path.steps[1] as i32 / map.width;
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viewshed.dirty = true;
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}
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}
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}
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}
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}
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