From f09f0efb7b729e69c0caab8f03fbb1916b40b3d3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20GUEZO?= <loicguezo@gmail.com>
Date: Thu, 1 May 2025 09:29:47 +0200
Subject: [PATCH] feat: add display function

This commit introduces a new `display` function:
- It takes an immutable reference to a grid of bool values
- It takes mutable reference to a String buffer.

it writes to the buffer, `X` or `.` depending on the grid's bool element.
---
 Cargo.lock  |  2 +-
 Cargo.toml  |  2 +-
 src/main.rs | 24 ++++++++++++++++++++++--
 3 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 0e7f8e6..7135f57 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,5 +3,5 @@
 version = 4
 
 [[package]]
-name = "GameOfLife_rs"
+name = "GameOfLife"
 version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index 7692178..ed6d414 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "GameOfLife_rs"
+name = "GameOfLife"
 version = "0.1.0"
 edition = "2024"
 
diff --git a/src/main.rs b/src/main.rs
index e7a11a9..62deb32 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,23 @@
-fn main() {
-    println!("Hello, world!");
+const WIDTH: usize = 30;
+const HEIGHT: usize = 30;
+
+fn display(grid: &[[bool; WIDTH]; HEIGHT], buffer: &mut String) {
+    buffer.clear();
+
+    for row in grid {
+        for &cell in row {
+            buffer.push(if cell { 'X' } else { '.' });
+            buffer.push(' ');
+        }
+        buffer.push('\n');
+    }
+
+    println!("{}", buffer);
+}
+
+fn main() {
+    let grid: [[bool; WIDTH]; HEIGHT] = [[false; WIDTH]; HEIGHT];
+    let mut buffer: String = String::new();
+    
+    display(&grid, &mut buffer);
 }