156 lines
5.6 KiB
Rust
156 lines
5.6 KiB
Rust
use ::specs::prelude::*;
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use crate::components::{Faction, MyTurn, Position, TileSize, WantsToMelee};
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use crate::raws::{self, Reaction, RAWS};
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use crate::{spatial, Map};
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pub struct AdjacentAI {}
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impl<'a> System<'a> for AdjacentAI {
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#[allow(clippy::type_complexity)]
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type SystemData = (
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WriteStorage<'a, MyTurn>,
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ReadStorage<'a, Faction>,
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ReadStorage<'a, Position>,
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ReadExpect<'a, Map>,
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WriteStorage<'a, WantsToMelee>,
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Entities<'a>,
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ReadExpect<'a, Entity>,
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ReadStorage<'a, TileSize>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (mut turns, factions, positions, map, mut want_melee, entities, player, sizes) = data;
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let mut turn_done: Vec<Entity> = Vec::new();
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for (entity, _turn, my_faction, pos) in (&entities, &turns, &factions, &positions).join() {
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if entity != *player {
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let mut reactions: Vec<(Entity, Reaction)> = Vec::new();
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let idx = map.xy_idx(pos.x, pos.y);
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let w = map.width;
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let h = map.height;
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if let Some(size) = sizes.get(entity) {
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use crate::rect::Rect;
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let mob_rect = Rect::new(pos.x, pos.y, size.x, size.y).get_all_tiles();
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let parent_rect = Rect::new(pos.x - 1, pos.y - 1, size.x + 2, size.y + 2);
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parent_rect
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.get_all_tiles()
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.iter()
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.filter(|t| !mob_rect.contains(t))
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.for_each(|t| {
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if t.0 > 0 && t.0 < w - 1 && t.1 > 0 && t.1 < h - 1 {
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let target_idx = map.xy_idx(t.0, t.1);
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evaluate(
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target_idx,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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})
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} else {
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// Add possible reactions to adjacents for each direction
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if pos.x > 0 {
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evaluate(idx - 1, &map, &factions, &my_faction.name, &mut reactions);
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}
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if pos.x < w - 1 {
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evaluate(idx + 1, &map, &factions, &my_faction.name, &mut reactions);
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}
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if pos.y > 0 {
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evaluate(
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idx - w as usize,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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if pos.y < h - 1 {
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evaluate(
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idx + w as usize,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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if pos.y > 0 && pos.x > 0 {
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evaluate(
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(idx - w as usize) - 1,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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if pos.y > 0 && pos.x < w - 1 {
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evaluate(
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(idx - w as usize) + 1,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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if pos.y < h - 1 && pos.x > 0 {
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evaluate(
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(idx + w as usize) - 1,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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if pos.y < h - 1 && pos.x < w - 1 {
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evaluate(
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(idx + w as usize) + 1,
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&map,
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&factions,
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&my_faction.name,
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&mut reactions,
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);
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}
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}
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let mut done = false;
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for reaction in reactions.iter() {
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if let Reaction::Attack = reaction.1 {
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want_melee
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.insert(entity, WantsToMelee { target: reaction.0 })
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.expect("Failed to insert intention to attack");
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done = true;
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}
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}
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if done {
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turn_done.push(entity);
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}
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}
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}
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// Remove turn marker for those that are done
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for done in turn_done.iter() {
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turns.remove(*done);
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}
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}
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}
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fn evaluate(
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idx: usize,
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_map: &Map,
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factions: &ReadStorage<Faction>,
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my_faction: &str,
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reactions: &mut Vec<(Entity, Reaction)>,
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) {
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spatial::for_each_tile_content(idx, |other_entity| {
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if let Some(faction) = factions.get(other_entity) {
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reactions.push((
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other_entity,
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raws::faction_reaction(my_faction, &faction.name, &RAWS.lock().unwrap()),
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))
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}
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});
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}
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