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roguelike-game/src/systems/hunger_system.rs

68 lines
2.3 KiB
Rust

use ::specs::prelude::*;
use crate::colors;
use crate::components::{HungerClock, HungerState, MyTurn};
use crate::effects::{add_effect, EffectType, Targets};
use crate::gamelog::log_color_line;
pub struct HungerSystem {}
impl<'a> System<'a> for HungerSystem {
#[allow(clippy::type_complexity)]
type SystemData = (
Entities<'a>,
WriteStorage<'a, HungerClock>,
ReadExpect<'a, Entity>, // The player
ReadStorage<'a, MyTurn>,
);
fn run(&mut self, data: Self::SystemData) {
let (entities, mut hunger_clock, player_entity, turns) = data;
for (entity, mut clock, _myturn) in (&entities, &mut hunger_clock, &turns).join() {
clock.duration -= 1;
if clock.duration < 1 {
match clock.state {
HungerState::WellFed => {
clock.state = HungerState::Normal;
clock.duration = 200;
if entity == *player_entity {
log_color_line(colors::ORANGE, "You are no longer well fed");
}
}
HungerState::Normal => {
clock.state = HungerState::Hungry;
clock.duration = 200;
if entity == *player_entity {
log_color_line(colors::ORANGE, "You are hungry.");
}
}
HungerState::Hungry => {
clock.state = HungerState::Starving;
clock.duration = 200;
if entity == *player_entity {
log_color_line(colors::RED, "You are starving!");
}
}
HungerState::Starving => {
// Inflict damage from hunger
if entity == *player_entity {
log_color_line(colors::RED, "Your hunger pangs are getting painful!");
}
add_effect(
None,
EffectType::Damage { amount: 1 },
Targets::Single { target: entity },
);
}
}
}
}
}
}