demo-tour.rs

1use mrlycore::errors::Result;2use mrlyfig::{ink, save, Board, Grid};3use mrlymath::two;4use mrlymath::two::census;56const CODE: u128 = 7;7const NUMBER: usize = 3;8const BASE: usize = 2;9const LEVEL: usize = 4;10const SIDE: usize = 81;1112fn main() -> Result<()> {13    let mut board = Board::square();14    let frame = board.frame(0.08);15    let carpet = two::create(CODE, NUMBER, LEVEL, 0, BASE)?;16    assert_eq!((carpet.width(), census::fills(&carpet)), (SIDE, 4096));17    assert_eq!(census::perimeter(&carpet), 3536);18    let types = carpet.types();19    let on = |row: i64, col: i64| {20        (0..SIDE as i64).contains(&row)21            && (0..SIDE as i64).contains(&col)22            && types.get(&[row as usize, col as usize]) != 023    };24    let grid = Grid::new(frame, SIDE, SIDE, 0.0);25    let body = ink::mix(ink::line(), ink::dim(), 0.35);26    for row in 0..SIDE {27        for col in 0..SIDE {28            if on(row as i64, col as i64) {29                grid.fill(&mut board, col, row, body);30            }31        }32    }33    let thick = frame.cell(SIDE) * 0.22;34    let mut edges = 0usize;35    for row in 0..SIDE {36        for col in 0..SIDE {37            if !on(row as i64, col as i64) {38                continue;39            }40            let (x, y, w, h) = grid.cell(col, row);41            let (r, c) = (row as i64, col as i64);42            let sides = [43                (!on(r - 1, c), (x, y), (x + w, y)),44                (!on(r + 1, c), (x, y + h), (x + w, y + h)),45                (!on(r, c - 1), (x, y), (x, y + h)),46                (!on(r, c + 1), (x + w, y), (x + w, y + h)),47            ];48            for (open, a, b) in sides {49                if open {50                    board.segment(a, b, thick, ink::yellow());51                    edges += 1;52                }53            }54        }55    }56    assert_eq!(edges as u128, census::perimeter(&carpet));57    save("demo-tour", &board)?;58    Ok(())59}