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use crate::display;
use crate::entities::raws::CreatureType;
use crate::entities::raws::EntityRaw;
use crate::entities::{raw, Describe, EntityID};
use crate::types::Position;
use std::io::{self, Write};
#[derive(Debug, Clone)]
pub struct Creature {
pub id: Option<EntityID>,
pub typ: &'static CreatureType<'static>,
pub position: Position,
pub hitpoints: u16,
}
impl Creature {
pub fn new_from_raw(name: &'static str, position: Position) -> Self {
match raw(name) {
EntityRaw::Creature(typ) => Self::new_with_type(typ, position),
_ => panic!("Invalid raw type for {:?}, expected Creature", name),
}
}
pub fn new_with_type(
typ: &'static CreatureType<'static>,
position: Position,
) -> Self {
Creature {
id: None,
typ,
position,
hitpoints: typ.max_hitpoints,
}
}
/// Damage the given creature by the given amount
pub fn damage(&mut self, amount: u16) {
if self.hitpoints <= amount {
self.hitpoints = 0;
} else {
self.hitpoints -= amount;
}
}
/// Returns true if this creature has died
pub fn dead(&self) -> bool {
self.hitpoints <= 0
}
}
entity!(Creature);
impl Describe for Creature {
fn description(&self) -> String {
self.typ.description.to_string()
}
}
impl display::Draw for Creature {
fn do_draw(&self, out: &mut Write) -> io::Result<()> {
write!(out, "{}", self.typ.chr)
}
}
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