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- extern crate specs;
- use specs::prelude::*;
- use super::{CombatStats, SufferDamage, Player};
- use rltk::console;
- pub struct DamageSystem {}
- impl<'a> System<'a> for DamageSystem {
- type SystemData = ( WriteStorage<'a, CombatStats>,
- WriteStorage<'a, SufferDamage> );
- fn run(&mut self, data : Self::SystemData) {
- let (mut stats, mut damage) = data;
- for (mut stats, damage) in (&mut stats, &damage).join() {
- stats.hp -= damage.amount;
- }
- damage.clear();
- }
- }
- pub fn delete_the_dead(ecs : &mut World) {
- let mut dead : Vec<Entity> = Vec::new();
- // Using a scope to make the borrow checker happy
- {
- let combat_stats = ecs.read_storage::<CombatStats>();
- let players = ecs.read_storage::<Player>();
- let entities = ecs.entities();
- for (entity, stats) in (&entities, &combat_stats).join() {
- if stats.hp < 1 {
- let player = players.get(entity);
- match player {
- None => dead.push(entity),
- Some(_) => console::log("You are dead")
- }
- }
- }
- }
- for victim in dead {
- ecs.delete_entity(victim).expect("Unable to delete");
- }
- }
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