Enum HandGroup 

pub enum HandGroup {
    Koutsu(Tile),
    Shuntsu(Tile),
}

A group of 3 tiles within a player’s closed hand, a.k.a. Mentsu (面子).

Can be either:

• Koutsu ((暗)刻子): 3 of a kind (ignoring red); e.g. 222z, 055m
• Shuntsu ((暗)順子): 3 consecutive numerals (ignoring red); e.g. 789m, 406s

These are like Chii and Pon respectively, except concealed.

It can be encoded as a 6-bit integer (the same size as a Tile!), with 2 bitfields:

• [3:0]: [111, 123, 222, 234, 333, 345, 444, 456, 555, 567, 666, 678, 777, 789, 888, 999]. Basically with 999 shifting 1 place to occupy the encoding for 89A (invalid). For suit 3 (honors), 123, 234, …, 789, 888, 999 are all invalid.

• [5:4]: suit (0/1/2/3 = m/p/s/z)

Optional serde support

{type, tile} where type is "Shuntsu" or "Koutsu".

Variants

Koutsu(Tile)

Koutsu (暗)刻子: 3 of a kind (ignoring red); e.g. 222z, 055m. The tile argument is the repeated tile.

Shuntsu(Tile)

Shuntsu (暗)順子: 3 consecutives (ignoring red); e.g. 789m, 406s. The tile argument is the minimum (normal) tile in the group.

Implementations

impl HandGroup

pub fn from_packed(packed: u8) -> Option<Self>

Parse from the 6-bit integer encoding. Higher 2 bits are ignored.

pub fn packed(self) -> u8

Encode as a 6-bit integer.

pub fn min_tile(self) -> Tile

Returns the min tile in the group.

Trait Implementations

impl Clone for HandGroup

fn clone(&self) -> HandGroup

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for HandGroup

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HandGroup

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for HandGroup

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Ord for HandGroup

fn cmp(&self, other: &HandGroup) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for HandGroup

fn eq(&self, other: &HandGroup) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for HandGroup

fn partial_cmp(&self, other: &HandGroup) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for HandGroup

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for HandGroup

impl Eq for HandGroup

impl StructuralPartialEq for HandGroup