50 lines
1.3 KiB
Rust
50 lines
1.3 KiB
Rust
use std::cmp::max;
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use crate::position::Position;
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pub struct Monster {
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life: usize,
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position: Position,
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}
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impl Monster {
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pub fn new(life: usize) -> Self {
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Monster {
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life,
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position: Position::new(0, 0, 0),
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}
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}
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pub fn get_life(&self) -> usize { self.life }
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pub fn is_dead(&self) -> bool { self.life <= 0 }
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pub fn decrease_life(&mut self, by: i16) {
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self.life = max(0, self.life as i16 - by) as usize;
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}
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pub fn get_position(&mut self) -> &mut Position {
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&mut self.position
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}
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}
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#[test]
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fn monsters_can_move() {
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let mut m = Monster::new(2);
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assert_eq!(m.get_position(), &Position::new(0, 0, 0));
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m.get_position().change(1, 2);
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assert_eq!(m.get_position(), &Position::new(0, 1, 2));
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m.get_position().change(2, 1);
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assert_eq!(m.get_position(), &Position::new(0, 3, 3));
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m.get_position().set(1, 2, 3);
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m.get_position().change(2, 1);
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assert_eq!(m.get_position(), &Position::new(1, 4, 4));
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}
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#[test]
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fn monsters_can_die() {
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let mut m = Monster::new(2);
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assert_eq!(m.get_life(), 2);
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assert_eq!(m.is_dead(), false);
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m.decrease_life(1);
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assert_eq!(m.get_life(), 1);
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m.decrease_life(2);
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assert_eq!(m.get_life(), 0);
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assert_eq!(m.is_dead(), true);
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} |