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|
use rand;
use specs::{
WriteStorage,
Entities,
System,
Join,
Read
};
use crate::{
components::{
Grow,
OwnTime,
TriggerBox
},
resources::{Time}
};
pub struct Growth;
impl <'a> System<'a> for Growth{
type SystemData = (
Entities<'a>,
WriteStorage<'a, Grow>,
WriteStorage<'a, TriggerBox>,
Read<'a, Time>,
WriteStorage<'a, OwnTime>
);
fn run(&mut self, (entities, mut grows, mut triggerboxes, time, mut own_times): Self::SystemData) {
for (entity, grow) in (&entities, &mut grows).join(){
if grow.target_time == None {
let creation_time = own_times.get(entity).map(|ct| ct.time).unwrap_or(time.time);
let duration = grow.delay as f64 * (1.0 + rand::random::<f64>()) / (if rand::random() {1.0} else {2.0});
grow.target_time = Some(creation_time + duration as i64);
}
let target_time = grow.target_time.unwrap();
if target_time <= time.time {
if target_time + 1 < time.time {
own_times.insert(entity, OwnTime{time: target_time + 1}).unwrap();
}
TriggerBox::add_message(&mut triggerboxes, entity, grow.trigger);
}
}
}
}
|
