use rand::{RngCore, SeedableRng};
use rand_chacha::ChaCha20Rng;
use crate::field::{Size, GenerateResult, Cell, Coords, CellSize, COLORS};
use crate::locale::Locale;
pub const STRART_CELLS: &'static [Locale<'static>] = &[
Locale {
ru: "Диагональ",
en: "Diagonal"
},
Locale {
ru: "Стороны",
en: "Side-toside"
},
Locale {
ru: "Meeting",
en: "Meeting"
}
];
pub fn generate_fn<'a>(size: Size, start_points_type: usize, count_colors: usize, seed: [u8; 32]) -> GenerateResult {
let mut r: ChaCha20Rng = SeedableRng::from_seed(seed);
let mut data: Vec<Cell> = vec![];
let count_colors = match count_colors >= 4 {
true => count_colors,
false => 4,
};
let count_colors = match count_colors < COLORS.len() {
true => count_colors,
false => COLORS.len() - 1,
};
let size_x = size.x * 2 + 1;
let size_y = size.y * 2 + 1;
for room in 0..4 {
let dx = match room {
1 | 3 => size.x + 1,
_ => 0
};
let dy = match room {
2 | 3 => size.y + 1,
_ => 0
};
for i in 0..size.x {
for j in 0..size.y {
let mut neighbors: Vec<usize> = vec![];
let offset = ((size.x * size.y) * room) as usize;
if i > 0 { neighbors.push(((i - 1) * size.y + j) as usize + offset); }
if i < size.x - 1 { neighbors.push(((i + 1) * size.y + j) as usize + offset); }
if j > 0 { neighbors.push((i * size.y + j - 1) as usize + offset); }
if j < size.y - 1 { neighbors.push((i * size.y + j + 1) as usize + offset); }
let cell = Cell {
coord: Coords {
x: (1.0 / size_x as f32) * (i + dx) as f32,
y: (1.0 / size_y as f32) * (j + dy) as f32,
},
owner: None,
color: (r.next_u32() % count_colors as u32) as usize,
size: CellSize {
x: (1.0 / size_x as f32),
y: (1.0 / size_y as f32),
},
neighbors: neighbors
};
data.push(cell);
}
}
}
let mut start_cells: Vec<Vec<usize>> = vec![];
match start_points_type {
1 => {
start_cells.push(vec![
(size.x * size.y * 0 + 0) as usize, (size.x * size.y * 0 + size.y * (size.x - 1)) as usize,
(size.x * size.y * 1 + 0) as usize, (size.x * size.y * 1 + size.y * (size.x - 1)) as usize,
(size.x * size.y * 2 + 0) as usize, (size.x * size.y * 2 + size.y * (size.x - 1)) as usize,
(size.x * size.y * 3 + 0) as usize, (size.x * size.y * 3 + size.y * (size.x - 1)) as usize,
]);
start_cells.push(vec![
(size.x * size.y * 0 + (size.y - 1)) as usize, (size.x * size.y * 0 + size.x * size.y - 1) as usize,
(size.x * size.y * 1 + (size.y - 1)) as usize, (size.x * size.y * 1 + size.x * size.y - 1) as usize,
(size.x * size.y * 2 + (size.y - 1)) as usize, (size.x * size.y * 2 + size.x * size.y - 1) as usize,
(size.x * size.y * 3 + (size.y - 1)) as usize, (size.x * size.y * 3 + size.x * size.y - 1) as usize,
]);
},
2 => {
start_cells.push(vec![
(size.x * size.y * 0 + 0) as usize, (size.x * size.y * 0 + size.x * size.y - 1) as usize,
(size.x * size.y * 1 + 0) as usize, (size.x * size.y * 1 + size.x * size.y - 1) as usize,
(size.x * size.y * 2 + 0) as usize, (size.x * size.y * 2 + size.x * size.y - 1) as usize,
(size.x * size.y * 3 + 0) as usize, (size.x * size.y * 33 + size.x * size.y - 1) as usize,
]);
start_cells.push(vec![
(size.x * size.y * 0 + (size.y - 1)) as usize, (size.x * size.y * 0 + size.y * (size.x - 1)) as usize,
(size.x * size.y * 1 + (size.y - 1)) as usize, (size.x * size.y * 1 + size.y * (size.x - 1)) as usize,
(size.x * size.y * 2 + (size.y - 1)) as usize, (size.x * size.y * 2 + size.y * (size.x - 1)) as usize,
(size.x * size.y * 3 + (size.y - 1)) as usize, (size.x * size.y * 3 + size.y * (size.x - 1)) as usize,
]);
}
_ => {
start_cells.push(vec![
(size.x * size.y * 0) as usize,
(size.x * size.y * 1) as usize,
(size.x * size.y * 2) as usize,
(size.x * size.y * 3) as usize,
]);
start_cells.push(vec![
(size.x * size.y * 1 - 1) as usize,
(size.x * size.y * 2 - 1) as usize,
(size.x * size.y * 3 - 1) as usize,
(size.x * size.y * 4 - 1) as usize,
]);
},
}
for (idx, item) in start_cells.iter().enumerate() {
for point in item {
let mut cell = data[*point].clone();
cell.owner = Some(idx);
data[*point] = cell;
}
}
GenerateResult {
data: data,
start_cells: start_cells,
size: Size {x: size_x, y: size_y},
}
}