initialize grid function

src/cell.rs

@@ -0,0 +1,26 @@
+use crate::BRIGHTNESS;
+use crate::HEIGHT;
+use crate::Q;
+use crate::WIDTH;
+
+pub struct Cell {
+    pub x: u32,
+    pub y: u32,
+    pub state: u32,
+}
+
+pub fn init_grid() -> 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 {
+            row.push(Cell {
+                x: i,
+                y: j,
+                state: 0,
+            });
+        }
+        grid.push(row);
+    }
+    grid
+}

src/main.rs

@@ -7,6 +7,10 @@ pub const K2: u32 = 3;
 pub const G: u32 = 35;
 pub const Q: u32 = 100;
 
+mod cell;
+use cell::*;
+
 fn main() {
     println!("Hello, world!");
+    let grid = init_grid();
 }