From 4766956a924fa46c8660afa208e88b5d67d1c727 Mon Sep 17 00:00:00 2001
From: Bearmine <bearmine@bearmine.com>
Date: Sat, 31 May 2025 08:50:55 -0500
Subject: [PATCH] Start day 6

---
 day_06/Cargo.lock      |  7 +++++
 day_06/small_input.txt | 10 +++++++
 day_06/src/main.rs     | 61 ++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 76 insertions(+), 2 deletions(-)
 create mode 100644 day_06/Cargo.lock
 create mode 100644 day_06/small_input.txt

diff --git a/day_06/Cargo.lock b/day_06/Cargo.lock
new file mode 100644
index 0000000..03343c6
--- /dev/null
+++ b/day_06/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "day_06"
+version = "0.1.0"
diff --git a/day_06/small_input.txt b/day_06/small_input.txt
new file mode 100644
index 0000000..b60e466
--- /dev/null
+++ b/day_06/small_input.txt
@@ -0,0 +1,10 @@
+....#.....
+.........#
+..........
+..#.......
+.......#..
+..........
+.#..^.....
+........#.
+#.........
+......#...
\ No newline at end of file
diff --git a/day_06/src/main.rs b/day_06/src/main.rs
index e7a11a9..e706463 100644
--- a/day_06/src/main.rs
+++ b/day_06/src/main.rs
@@ -1,3 +1,60 @@
-fn main() {
-    println!("Hello, world!");
+use std::{
+    env,
+    error::Error,
+    fs::File,
+    io::{BufReader, prelude::*},
+};
+
+fn load_map(input_file: &str) -> Result<(Vec<Vec<bool>>, (usize, usize)), Box<dyn Error>> {
+    let buffer = BufReader::new(File::open(input_file)?);
+    let mut lines = buffer.lines().peekable();
+
+    let width = match lines.peek() {
+        Some(l) => match l {
+            Ok(li) => li.len(),
+            Err(_) => Err("Error reading first line of map file")?,
+        },
+        None => Err("Cannot load empty map file.")?,
+    };
+
+    let mut data: Vec<Vec<bool>> = Vec::new();
+    let mut guard_position = (0, 0);
+
+    for (y, line) in lines.enumerate() {
+        let line = line?;
+        if line.len() != width {
+            println!("{}", line);
+            Err("Line length of input are not consistent")?;
+        }
+        let parsed_data: Vec<bool> = line
+            .chars()
+            .enumerate()
+            .map(|(x, c)| {
+                if c == '^' {
+                    guard_position = (x, y);
+                };
+                c == '#'
+            })
+            .collect();
+        data.push(parsed_data);
+    }
+    let height = data.len();
+
+    Ok((data, guard_position))
+}
+
+fn main() -> Result<(), Box<dyn Error>> {
+    // Handle command input
+    let args: Vec<String> = env::args().collect();
+    if args.len() != 2 {
+        panic!(
+            "{} must be run with a single argument of files name!",
+            &args[0]
+        )
+    }
+    let input_file = &args[1];
+    let data = load_map(input_file)?;
+    println!("{:?}", data);
+
+    Ok(())
 }