1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
use specs::{
WriteStorage,
System,
Entities,
Join
};
use crate::{
components::{Health, Attacked, Dying, Removed},
util
};
pub struct Attacking;
impl <'a> System<'a> for Attacking {
type SystemData = (
Entities<'a>,
WriteStorage<'a, Attacked>,
WriteStorage<'a, Health>,
WriteStorage<'a, Dying>,
WriteStorage<'a, Removed>
);
fn run(&mut self, (entities, mut victims, mut healths, mut deads, mut removals): Self::SystemData) {
for (ent, health, attacked) in (&entities, &mut healths, &mut victims).join() {
for attack in attacked.attacks.drain(..) {
health.health -= attack.damage;
}
health.health = util::clamp(health.health, 0, health.maxhealth);
if health.health == 0 {
deads.insert(ent, Dying).unwrap();
removals.insert(ent, Removed).unwrap();
}
}
victims.clear();
}
}
|
