declaration of display grid

src/main.rs

@@ -198,19 +198,26 @@ fn open_file(filename: &str) -> io::Result<String> {
     Ok(content)
 }
 
-fn display_grid(h: HashMap<>, ){
-    for (i=0;j<xmax;++j){
-        for(r.p.x == j && r.p.y==i){
-            match some(hash.get(position{x: j, y: i})) => 
-                match robot_pool[id-1].o { 
-                "N" => println!("fleche du haut"),
-                "E" => println!("fleche a droite"),
-                "W" => println!("fleche a gauche"),
-                "S" => println!("fleche en bas"),
-
+fn display_grid(
+    w: &world::World,
+    robot_pool: &Vec<robot::Robot>,
+    h: &HashMap<robot::Position, u32>,
+) {
+    for i in (0..w.y).rev() {
+        
+        print!("  ");
+        for j in 0..w.x {
+            print!("{}  ", i);
+            match h.get(Position{ x: j, y: i }) {
+                some(id) => match robot_pool[(id - 1) as usize].o {
+                    robot::Orientation::N => print!("↑"),
+                    robot::Orientation::E => print!("→"),
+                    robot::Orientation::S => print!("↓"),
+                    robot::Orientation::W => print!("←"),
+                    None => print!("."),
                 },
-            None => println!("."),
-            
+            }
+            println!()
         }
     }
 }