Lovecraft: parse_grid

lib.rs

pub fn parse_grid(grid_desc :&str) -> Grid {
    let mut grid: Grid = [[false;4];4];
    grid_desc.chars().collect::<Vec<char>>().chunks(4).
        enumerate().for_each(|(a,cs)| {
            cs.iter().enumerate().for_each(|(b,c)| {
                if *c == '1' {
                    grid[a][b]=true;
                }
            })
        });
    grid
}