78 lines
2.7 KiB
Rust
78 lines
2.7 KiB
Rust
use ::specs::prelude::*;
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use crate::components::{AreaOfEffect, EntityMoved, EntryTrigger, Name, Position};
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use crate::effects::{add_effect, aoe_tiles, EffectType, Targets};
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use crate::game_log::GameLog;
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use crate::{spatial, Map};
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pub struct TriggerSystem {}
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impl<'a> System<'a> for TriggerSystem {
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#[allow(clippy::type_complexity)]
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type SystemData = (
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ReadExpect<'a, Map>,
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WriteStorage<'a, EntityMoved>,
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ReadStorage<'a, Position>,
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ReadStorage<'a, EntryTrigger>,
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ReadStorage<'a, Name>,
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Entities<'a>,
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WriteExpect<'a, GameLog>,
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ReadStorage<'a, AreaOfEffect>,
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);
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fn run(&mut self, data: Self::SystemData) {
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let (
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map,
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mut entity_moved,
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position,
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entry_trigger,
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names,
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entities,
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mut log,
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area_of_effect,
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) = data;
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// Iterate the entities that moved and their final position
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for (entity, mut _entity_moved, pos) in (&entities, &mut entity_moved, &position).join() {
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let idx = map.xy_idx(pos.x, pos.y);
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spatial::for_each_tile_content(idx, |entity_id| {
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// Do not bother to check yourself for being a trap!
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if entity != entity_id {
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match entry_trigger.get(entity_id) {
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None => {}
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Some(_trigger) => {
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// We triggered it
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if let Some(name) = names.get(entity_id) {
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log.append(format!("{} triggers!", &name.name));
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}
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// Call the effects system
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add_effect(
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Some(entity),
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EffectType::TriggerFire { trigger: entity_id },
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if let Some(aoe) = area_of_effect.get(entity_id) {
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Targets::Tiles {
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tiles: aoe_tiles(
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&*map,
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::rltk::Point::from(*pos),
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aoe.radius,
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),
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}
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} else {
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Targets::Tile {
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tile_idx: idx as i32,
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}
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},
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)
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}
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}
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}
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});
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}
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// Remove all entity movement markers
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entity_moved.clear();
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}
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}
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