tileset 0.1.2

use super::*;
use crate::GridCompleteAtlas;

impl GridCornerRMVX {
    /// Returns a new `GridCompleteAtlas` from the current `GridCornerRMVX`.
    ///
    /// # Examples
    ///
    /// ```no_run
    /// # use tileset::GridCornerRMVX;
    /// let rpg = GridCornerRMVX::load("assets/rpg4x6.png").unwrap();
    /// rpg.as_complete().save("assets/rpg4x6-std.png").unwrap();
    /// ```
    pub fn as_complete(&self) -> GridCompleteAtlas {
        const C: u32 = 24;
        const L: u32 = 8;
        let w = self.cell_w;
        let h = self.cell_h;
        let mut output = RgbaImage::new(w * C, h * L);
        for i in 0..C {
            for j in 0..L {
                let (x, y) = rpg4x6_to_complete(i, j);
                let view = self.image.view(x * w, y * h, w, h);
                output.copy_from(&*view, i * w, j * h).ok();
            }
        }
        // SAFETY: output image definitely has the correct size
        unsafe { GridCompleteAtlas::create(output) }
    }
}

fn rpg4x6_to_complete(x: u32, y: u32) -> (u32, u32) {
    match (x, y) {
        //
        (0, 0) => (0, 2),
        (0, 1) => (0, 3),
        (0, 2) => (0, 4),
        (0, 3) => (0, 3),
        (0, 4) => (0, 4),
        (0, 5) => (0, 5),
        (0, 6) => (0, 2),
        (0, 7) => (0, 5),
        //
        (1, 0) => (3, 2),
        (1, 1) => (3, 3),
        (1, 2) => (3, 4),
        (1, 3) => (3, 3),
        (1, 4) => (3, 4),
        (1, 5) => (3, 5),
        (1, 6) => (3, 2),
        (1, 7) => (3, 5),
        //
        (2, 0) => (0, 2),
        (2, 1) => (0, 3),
        (2, 2) => (0, 4),
        (2, 3) => (0, 3),
        (2, 4) => (0, 4),
        (2, 5) => (0, 5),
        (2, 6) => (0, 2),
        (2, 7) => (0, 5),
        //
        (3, 0) => (1, 2),
        (3, 1) => (3, 1),
        (3, 2) => (3, 0),
        (3, 3) => (3, 1),
        (3, 4) => (3, 0),
        (3, 5) => (1, 5),
        (3, 6) => (1, 2),
        (3, 7) => (1, 5),
        //
        (4, 0) => (2, 2),
        (4, 1) => (2, 1),
        (4, 2) => (2, 0),
        (4, 3) => (2, 1),
        (4, 4) => (2, 0),
        (4, 5) => (2, 5),
        (4, 6) => (2, 2),
        (4, 7) => (2, 5),
        //
        (5, 0) => (1, 2),
        (5, 1) => (3, 1),
        (5, 2) => (3, 0),
        (5, 3) => (3, 1),
        (5, 4) => (3, 0),
        (5, 5) => (1, 5),
        (5, 6) => (1, 2),
        (5, 7) => (1, 5),
        //
        (6, 0) => (2, 2),
        (6, 1) => (2, 1),
        (6, 2) => (2, 0),
        (6, 3) => (2, 1),
        (6, 4) => (2, 0),
        (6, 5) => (2, 5),
        (6, 6) => (2, 2),
        (6, 7) => (2, 5),
        //
        (7, 0) => (3, 2),
        (7, 1) => (3, 3),
        (7, 2) => (3, 4),
        (7, 3) => (3, 3),
        (7, 4) => (3, 4),
        (7, 5) => (3, 5),
        (7, 6) => (3, 2),
        (7, 7) => (3, 5),
        //
        (8, 0) => (2, 4),
        (8, 1) => (2, 1),
        (8, 2) => (0, 4),
        (8, 3) => (0, 3),
        (8, 4) => (0, 4),
        (8, 5) => (0, 3),
        (8, 6) => (2, 0),
        (8, 7) => (2, 3),
        //
        (9, 0) => (3, 0),
        (9, 1) => (3, 1),
        (9, 2) => (3, 0),
        (9, 3) => (1, 3),
        (9, 4) => (1, 4),
        (9, 5) => (3, 1),
        (9, 6) => (3, 0),
        (9, 7) => (3, 1),
        //
        (10, 0) => (2, 2),
        (10, 1) => (2, 1),
        (10, 2) => (2, 0),
        (10, 3) => (2, 3),
        (10, 4) => (2, 4),
        (10, 5) => (2, 1),
        (10, 6) => (2, 0),
        (10, 7) => (2, 5),
        //
        (11, 0) => (1, 2),
        (11, 1) => (1, 3),
        (11, 2) => (1, 4),
        (11, 3) => (1, 3),
        (11, 4) => (1, 4),
        (11, 5) => (1, 3),
        (11, 6) => (1, 4),
        (11, 7) => (1, 5),
        //
        (12, 0) => (2, 2),
        (12, 1) => (2, 3),
        (12, 2) => (2, 4),
        (12, 3) => (2, 3),
        (12, 4) => (2, 4),
        (12, 5) => (2, 3),
        (12, 6) => (2, 4),
        (12, 7) => (2, 5),
        //
        (13, 0) => (1, 2),
        (13, 1) => (3, 1),
        (13, 2) => (3, 0),
        (13, 3) => (1, 3),
        (13, 4) => (1, 4),
        (13, 5) => (3, 1),
        (13, 6) => (3, 0),
        (13, 7) => (1, 5),
        //
        (14, 0) => (2, 0),
        (14, 1) => (2, 1),
        (14, 2) => (2, 0),
        (14, 3) => (2, 3),
        (14, 4) => (2, 4),
        (14, 5) => (2, 1),
        (14, 6) => (2, 0),
        (14, 7) => (2, 1),
        //
        (15, 0) => (1, 4),
        (15, 1) => (3, 1),
        (15, 2) => (3, 4),
        (15, 3) => (3, 3),
        (15, 4) => (3, 4),
        (15, 5) => (3, 3),
        (15, 6) => (3, 0),
        (15, 7) => (1, 3),
        //
        (16, 0) => (0, 2),
        (16, 1) => (0, 3),
        (16, 2) => (0, 4),
        (16, 3) => (0, 3),
        (16, 4) => (2, 0),
        (16, 5) => (2, 1),
        (16, 6) => (0, 4),
        (16, 7) => (0, 5),
        //
        (17, 0) => (1, 2),
        (17, 1) => (1, 3),
        (17, 2) => (1, 4),
        (17, 3) => (1, 3),
        (17, 4) => (1, 4),
        (17, 5) => (1, 3),
        (17, 6) => (1, 4),
        (17, 7) => (1, 5),
        //
        (18, 0) => (2, 0),
        (18, 1) => (2, 3),
        (18, 2) => (2, 0),
        (18, 3) => (2, 3),
        (18, 4) => (2, 4),
        (18, 5) => (2, 3),
        (18, 6) => (2, 4),
        (18, 7) => (2, 5),
        //
        (19, 0) => (3, 0),
        (19, 1) => (1, 3),
        (19, 2) => (1, 4),
        (19, 3) => (3, 1),
        (19, 4) => (1, 4),
        (19, 5) => (1, 3),
        (19, 6) => (1, 4),
        (19, 7) => (1, 5),
        //
        (20, 0) => (2, 2),
        (20, 1) => (2, 3),
        (20, 2) => (0, 0),
        (20, 3) => (0, 1),
        (20, 4) => (2, 4),
        (20, 5) => (2, 1),
        (20, 6) => (2, 4),
        (20, 7) => (2, 1),
        //
        (21, 0) => (1, 2),
        (21, 1) => (1, 3),
        (21, 2) => (1, 0),
        (21, 3) => (1, 1),
        (21, 4) => (3, 0),
        (21, 5) => (1, 3),
        (21, 6) => (1, 4),
        (21, 7) => (3, 1),
        //
        (22, 0) => (2, 2),
        (22, 1) => (2, 3),
        (22, 2) => (2, 4),
        (22, 3) => (2, 3),
        (22, 4) => (2, 4),
        (22, 5) => (2, 3),
        (22, 6) => (2, 4),
        (22, 7) => (2, 5),
        //
        (23, 0) => (3, 2),
        (23, 1) => (3, 3),
        (23, 2) => (3, 0),
        (23, 3) => (3, 1),
        (23, 4) => (3, 4),
        (23, 5) => (3, 3),
        (23, 6) => (3, 4),
        (23, 7) => (3, 5),
        _ => unreachable!(),
    }
}