40 lines
792 B
Rust
40 lines
792 B
Rust
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use rand::prelude::*;
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use crate::dice;
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pub trait Roll {
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type Output;
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fn roll(&self) -> Self::Output;
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}
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impl Roll for dice::Dice {
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type Output = u32;
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fn roll(&self) -> u32 {
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let mut rng = rand::thread_rng();
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(0..self.count).map(|_| rng.gen_range(1, self.sides + 1)).sum()
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}
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}
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impl Roll for dice::Element {
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type Output = u32;
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fn roll(&self) -> u32 {
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match self {
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dice::Element::Dice(d) => d.roll(),
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dice::Element::Bonus(b) => *b,
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}
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}
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}
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impl Roll for dice::SignedElement {
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type Output = i32;
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fn roll(&self) -> i32 {
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match self {
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dice::SignedElement::Positive(e) => e.roll() as i32,
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dice::SignedElement::Negative(e) => -(e.roll() as i32),
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}
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}
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}
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