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Clean up flash function

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This commit is contained in:
Tyler Hallada 2021-12-11 01:38:56 -05:00
parent 7dd99cab6d
commit f4a556940f
1 changed files with 17 additions and 31 deletions
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46
crates/day11/src/main.rs
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@ -76,37 +76,23 @@ impl Cavern {
fn flash(&mut self, x: usize, y: usize) -> Vec<(usize, usize)> {
let mut to_visit = vec![];
if y > 0 {
self.grid[y - 1][x] += 1;
to_visit.push((x, y - 1));
for (dx, dy) in vec![
(-1, -1),
(-1, 0),
(-1, 1),
(0, -1),
(0, 0),
(0, 1),
(1, -1),
(1, 0),
(1, 1),
] {
let (x, y) = (x as isize + dx, y as isize + dy);
if y >= 0 && y < 10 && x >= 0 && x < 10 {
let (x, y) = (x as usize, y as usize);
self.grid[y][x] += 1;
to_visit.push((x, y));
}
if y < 9 {
self.grid[y + 1][x] += 1;
to_visit.push((x, y + 1));
}
if x > 0 {
self.grid[y][x - 1] += 1;
to_visit.push((x - 1, y));
}
if x < 9 {
self.grid[y][x + 1] += 1;
to_visit.push((x + 1, y));
}
if y > 0 && x > 0 {
self.grid[y - 1][x - 1] += 1;
to_visit.push((x - 1, y - 1));
}
if y > 0 && x < 9 {
self.grid[y - 1][x + 1] += 1;
to_visit.push((x + 1, y - 1));
}
if y < 9 && x > 0 {
self.grid[y + 1][x - 1] += 1;
to_visit.push((x - 1, y + 1));
}
if y < 9 && x < 9 {
self.grid[y + 1][x + 1] += 1;
to_visit.push((x + 1, y + 1));
}
to_visit
}