From ef52dcfd7df7b103cac2ec144c4419d6a2d8ce6c Mon Sep 17 00:00:00 2001
From: Baipyrus <simon.waltemathe@gmail.com>
Date: Tue, 7 May 2024 11:35:31 +0200
Subject: [PATCH] optionally reuse old values

---
 src/cell.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/cell.rs b/src/cell.rs
index 02fcf57..46fc530 100644
--- a/src/cell.rs
+++ b/src/cell.rs
@@ -9,15 +9,20 @@ pub struct Cell {
     pub state: u32,
 }
 
-pub fn init_grid() -> Vec<Vec<Cell>> {
+pub fn init_grid(option: Option<&Vec<Vec<Cell>>>) -> Vec<Vec<Cell>> {
     let mut grid: Vec<Vec<Cell>> = Vec::new();
     for j in 0..HEIGHT {
         let mut row: Vec<Cell> = Vec::new();
         for i in 0..WIDTH {
+            let mut value = rand::random::<u32>() % Q;
+            if let Some(g) = option {
+                value = g[j as usize][i as usize].state;
+            }
+
             row.push(Cell {
                 x: i,
                 y: j,
-                state: 0,
+                state: value,
             });
         }
         grid.push(row);