Trait critfail::RollExpression

pub trait RollExpression: Sized + FromStr<Err = ParseError> {
    type Outcome: Display + Debug;
    fn roll(&self) -> Self::Outcome;

    fn new(expression: &str) -> Result<Self, ParseError> { ... }
}

Used for structs defining a set of dice that can be rolled.

Associated Types

type Outcome: Display + Debug

The roll result type should implement both Display and Debug. Display should print out a consise result for the roll, and Debug should print out the details (eg the value for each rolled die).

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Required methods

fn roll(&self) -> Self::Outcome

Roll the dice and return an outcome.

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Provided methods

fn new(expression: &str) -> Result<Self, ParseError>

Create a new roll expression by parsing the given string.

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Implementors

impl RollExpression for Roll

type Outcome = RollOutcome

fn roll(&self) -> Self::Outcome

impl RollExpression for Attack

type Outcome = AttackOutcome

fn roll(&self) -> Self::Outcome

impl RollExpression for Check

type Outcome = CheckOutcome

fn roll(&self) -> Self::Outcome

impl RollExpression for Damage

type Outcome = DamageOutcome

fn roll(&self) -> Self::Outcome

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