From 1ced7166625cc8f272131202f6dbb77463e38682 Mon Sep 17 00:00:00 2001
From: Martin HART <martin-hart@protonmail.com>
Date: Sat, 31 Oct 2020 18:44:23 +0100
Subject: [PATCH 1/4] Robot need to piouff some time :)

---
 src/robot.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/robot.rs b/src/robot.rs
index 7ab8c5a..25edfc3 100644
--- a/src/robot.rs
+++ b/src/robot.rs
@@ -69,6 +69,14 @@ pub fn is_instructions(v: &Vec<char>) -> bool {
     true
 }
 
+/// Check if a robot is piouff.
+pub fn is_piouff(r: &Robot) -> bool {
+    if r.i.len() == 0 {
+        return true;
+    }
+    false
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -121,4 +129,19 @@ mod tests {
         let v = vec!['F', 'R', 'L', 'Z'];
         assert!(is_instructions(&v));
     }
+
+    #[test]
+    fn test_piouf() {
+        let mut r: Robot = Robot::new(
+            0,
+            Orientation::N,
+            Position { x: 1, y: 2 },
+            vec!['R', 'F', 'L', 'F'],
+        );
+        r.i.pop();
+        r.i.pop();
+        r.i.pop();
+        r.i.pop();
+        assert!(is_piouff(&r));
+    }
 }

From afd8b1dc8b5287228cbcd01d2a154533a862dc9e Mon Sep 17 00:00:00 2001
From: Martin HART <martin-hart@protonmail.com>
Date: Sat, 31 Oct 2020 18:50:29 +0100
Subject: [PATCH 2/4] need to fix a nasty bug...

---
 src/main.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index e9e1c5e..3733ac9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -218,6 +218,19 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut hash: HashMap<robot::Position, u32> = HashMap::new();
     create_hash_map(&robot_pool, &mut hash);
 
+    let mut piouff: u32 = 0;
+    while piouff != robot_pool.len() as u32 {
+        for r in robot_pool {
+            if robot::is_piouff(&r) {
+                piouff += 1;
+            } else {
+                r.execute_instruction();
+            }
+            check_map(&r, &world)?;
+            check_collisions(&r, &hash)?;
+        }
+    }
+
     Ok(())
 }
 

From a470e883af95205b9faf3702f750bf6a661f5306 Mon Sep 17 00:00:00 2001
From: Martin HART <martin-hart@protonmail.com>
Date: Sat, 31 Oct 2020 19:23:04 +0100
Subject: [PATCH 3/4] fix iteration bug

---
 src/main.rs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 3733ac9..211ab08 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -218,9 +218,9 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let mut hash: HashMap<robot::Position, u32> = HashMap::new();
     create_hash_map(&robot_pool, &mut hash);
 
-    let mut piouff: u32 = 0;
-    while piouff != robot_pool.len() as u32 {
-        for r in robot_pool {
+    loop {
+        let mut piouff: u32 = 0;
+        for mut r in robot_pool {
             if robot::is_piouff(&r) {
                 piouff += 1;
             } else {
@@ -229,6 +229,9 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             check_map(&r, &world)?;
             check_collisions(&r, &hash)?;
         }
+        if piouff == robot_pool.len() as u32 {
+            break;
+        }
     }
 
     Ok(())

From 60a721742a8352ae135bf3d179d1660e401b6125 Mon Sep 17 00:00:00 2001
From: Volodymyr Patuta <6977238-fiplox@users.noreply.gitlab.com>
Date: Sat, 31 Oct 2020 20:21:21 +0100
Subject: [PATCH 4/4] working main-loop

---
 src/main.rs | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 211ab08..61e9d8a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -220,19 +220,24 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     loop {
         let mut piouff: u32 = 0;
-        for mut r in robot_pool {
+        for r in &mut robot_pool {
             if robot::is_piouff(&r) {
                 piouff += 1;
             } else {
+                hash.remove(&r.p);
                 r.execute_instruction();
+                check_map(&r, &world)?;
+                check_collisions(&r, &hash)?;
+                hash.insert(robot::Position { x: r.p.x, y: r.p.y }, r.id);
             }
-            check_map(&r, &world)?;
-            check_collisions(&r, &hash)?;
         }
         if piouff == robot_pool.len() as u32 {
             break;
         }
     }
+    for r in &robot_pool {
+        println!("Robot id: {}: Final position: ({}, {})", r.id, r.p.x, r.p.y);
+    }
 
     Ok(())
 }