Struct Grid 

pub struct Grid { /* private fields */ }

Holds the game state.

Implementations

impl Grid

pub fn new(x_size: usize, y_size: usize) -> Grid

Creates a new grid with the given size and adds two numbers on random positions. The size must be greater than 0 and greater than 1 in at least one dimension.

Examples

use cli_2048::Grid;
 
//Create a 4x4 grid
let grid = Grid::new(4, 4);

pub fn from_rows(rows: Vec<Vec<u8>>) -> Grid

Creates a new grid from a predefined grid.

Examples

use cli_2048::Grid;
 
//Create a 4x4 vector
let rows = vec![vec![0; 4]; 4];
//Create a grid from the vector
let grid = Grid::from_rows(rows);

pub fn with_pipes( &self, pipes: &'static Map<&'static str, &'static str>, ) -> Grid

Returns a new instance of the grid, with a custom pipe-map for the borders.

Examples

use cli_2048::Grid;
use cli_2048::PIPEMAPS;
 
//Create a 4x4 grid
let grid = Grid::new(4, 4);
//Create a grid with a custom pipe-map
let grid = grid.with_pipes(PIPEMAPS.get("Medium").unwrap());
 
//Or like this
let grid = Grid::new(4, 4).with_pipes(PIPEMAPS.get("Medium").unwrap());
 

pub fn get_size(&self) -> (usize, usize)

Gets the size of the grid in characters and with borders.

Examples

use cli_2048::Grid;
 
//Create a 4x4 grid
let grid = Grid::new(4, 4);
 
let x_size = 4*2 + (4-1) + 2;
let y_size = 4 + (4-1) + 2;

assert_eq!(grid.get_size(), (x_size, y_size));
 

pub fn slide(&self, dir: Direction) -> Result<Grid, &'static str>

Returns a new Grid from the previous. Slides and combines the grid in the given direction. If the tiles change a new tile will be added at a random empty position. If the grid is full the game is over (Err(“no more options”)).

Examples

use cli_2048::Grid;
use cli_2048::Direction;
 
//Create a 4x4 grid
let grid = Grid::new(4, 4);
let grid = grid.slide(Direction::Up);
let grid = grid.slide(Direction::Down);
 

Trait Implementations

impl Debug for Grid

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

Formats the value using the given formatter.

impl Default for Grid

fn default() -> Self

Returns the “default value” for a type.

impl Display for Grid

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

Formats the value using the given formatter.