demo-shell.rs

1use mrlycore::errors::Result;2use mrlycore::Color;3use mrlyfig::{ink, save, Board, Grid};4use mrlymath::bang::factory;5use mrlymath::shape::crossing_tree;67const RADIUS: u64 = 242;8const LEVEL: usize = 5;9const SIDE: usize = 243;1011fn outline(board: &mut Board, grid: &Grid, x: u64, y: u64, step: usize, thick: f64, color: Color) {12    let (left, top, _, _) = grid.cell(y as usize * step, SIDE - (x as usize + 1) * step);13    let (right, foot, w, h) = grid.cell((y as usize + 1) * step - 1, SIDE - 1 - x as usize * step);14    let (wide, tall) = (right + w - left, foot + h - top);15    board.rect(left, top, wide, thick, color);16    board.rect(left, top + tall - thick, wide, thick, color);17    board.rect(left, top, thick, tall, color);18    board.rect(left + wide - thick, top, thick, tall, color);19}2021fn main() -> Result<()> {22    let tile = factory::create(7, 3, 2, 2, 1)?;23    let keep: Vec<bool> = tile.bytes().iter().map(|&byte| byte != 0).collect();24    let tree = crossing_tree(RADIUS, 3, &keep);25    assert_eq!(tree.orphans, 0);26    assert_eq!(tree.levels.len(), LEVEL + 1);27    for (level, boxes) in tree.levels.iter().enumerate() {28        assert_eq!(29            boxes.len() as u64,30            2 * (RADIUS / 3u64.pow(level as u32)) + 131        );32    }33    assert_eq!(tree.levels[0].len(), 485);3435    let design = factory::create(7, 3, 2, 2, LEVEL)?;36    assert_eq!(design.shape, vec![SIDE, SIDE]);37    assert_eq!(design.sum(), 32768);3839    let mut board = Board::square();40    let grid = Grid::new(board.frame(0.08), SIDE, SIDE, 0.0);41    for x in 0..SIDE {42        for y in 0..SIDE {43            if design.bytes()[x * SIDE + y] != 0 {44                grid.fill(&mut board, y, SIDE - 1 - x, ink::line());45            }46        }47    }48    let unit = grid.cell(0, 0).2;49    for (level, thick, color) in [50        (2usize, 0.5 * unit, ink::dim()),51        (3, unit, ink::dim()),52        (4, 2.0 * unit, ink::dim()),53    ] {54        let step = 3usize.pow(level as u32);55        for cell in &tree.levels[level] {56            outline(&mut board, &grid, cell.x, cell.y, step, thick, color);57        }58    }59    let mut kept = 0u64;60    for cell in &tree.levels[0] {61        let color = if cell.live {62            kept += 1;63            ink::yellow()64        } else {65            ink::blue()66        };67        grid.fill(68            &mut board,69            cell.y as usize,70            SIDE - 1 - cell.x as usize,71            color,72        );73    }74    assert_eq!(kept, 296);75    save("demo-shell", &board)?;76    Ok(())77}