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|
use rand::Rng;
use specs::{
ReadStorage,
WriteStorage,
Write,
System,
Entities,
Join
};
use crate::{
components::{
Health,
AttackInbox,
AttackType,
Dead,
Position,
Autofight,
Ear,
ear::{Notification, HealthNotification::{Attack, Damage, Heal}, say},
Visible
},
resources::NewEntities,
Template,
util
};
pub struct Attacking;
impl <'a> System<'a> for Attacking {
type SystemData = (
Entities<'a>,
WriteStorage<'a, AttackInbox>,
WriteStorage<'a, Health>,
WriteStorage<'a, Dead>,
ReadStorage<'a, Position>,
Write<'a, NewEntities>,
WriteStorage<'a, Autofight>,
WriteStorage<'a, Ear>,
ReadStorage<'a, Visible>
);
fn run(&mut self, (entities, mut attackeds, mut healths, mut deads, positions, mut new, mut autofighters, mut ears, visibles): Self::SystemData) {
for (entity, attacked, autofighter) in (&entities, &attackeds, &mut autofighters).join() {
for attack in &attacked.messages {
if attack.typ.is_hostile() {
if let Some(attacker) = attack.attacker {
if healths.contains(attacker) && attacker != entity {
autofighter.target = Some(attacker);
}
}
}
}
}
for (target, health, attacked) in (&entities, &mut healths, &mut attackeds).join() {
let target_name = visibles.get(target).map(|v| v.name.as_str()).unwrap_or("?").to_string();
let mut wounded = false;
let mut attackers = Vec::new();
let mut attacker_names = Vec::new();
for attack in attacked.messages.drain(..) {
let actor_name = attack.attacker.map(|ae| visibles.get(ae)).flatten().map(|v| v.name.as_str()).unwrap_or("?").to_string();
match attack.typ {
AttackType::Attack(strength) => {
let damage = rand::thread_rng().gen_range(0, strength+1);
health.health -= damage;
if damage > 0 {
wounded = true;
if let Some(actor) = attack.attacker {
say(&mut ears, actor, Notification::Health{actor: actor_name.clone(), target: target_name.clone(), amount: damage, typ: Attack});
attackers.push(actor);
attacker_names.push(actor_name.clone());
}
say(&mut ears, target, Notification::Health{actor: actor_name.clone(), target: target_name.clone(), amount: damage, typ: Damage});
}
}
AttackType::Heal(healthdiff) => {
say(&mut ears, target, Notification::Health{actor: actor_name.clone(), target: target_name.clone(), amount: healthdiff, typ: Heal});
health.health += healthdiff;
}
}
}
health.health = util::clamp(health.health, 0, health.maxhealth);
if health.health == 0 {
deads.insert(target, Dead).unwrap();
let killers = attacker_names.join(" and ");
say(&mut ears, target, Notification::Die{actor: killers.clone(), target: target_name.clone()});
for actor in attackers {
say(&mut ears, actor, Notification::Kill{actor: killers.clone(), target: target_name.clone()});
}
}
if let Some(position) = positions.get(target){
if wounded {
new.create(position.pos, &Template::empty("wound")).unwrap();
}
}
}
attackeds.clear();
}
}
|
