Can get opponent last fire location

rust/cli_player/src/ui_screens/game_screen.rs

@@ -60,6 +60,7 @@ pub struct GameScreen {
     opponent_name: Option<String>,
     game: CurrentGameStatus,
     curr_shoot_position: Coordinates,
+    last_opponent_fire_position: Coordinates,
 }
 
 impl GameScreen {
@@ -70,6 +71,7 @@ impl GameScreen {
             opponent_name: None,
             game: Default::default(),
             curr_shoot_position: Coordinates::new(0, 0),
+            last_opponent_fire_position: Coordinates::invalid(),
         }
     }
 
@@ -193,7 +195,10 @@ impl GameScreen {
                     }
 
                     ServerMessage::FireResult { .. } => {}
-                    ServerMessage::OpponentFireResult { .. } => {}
+
+                    ServerMessage::OpponentFireResult { pos, .. } => {
+                        self.last_opponent_fire_position = pos;
+                    }
 
                     ServerMessage::LostGame { .. } => {}
                     ServerMessage::WonGame { .. } => {}
@@ -238,6 +243,11 @@ impl GameScreen {
                 },
                 cells: vec![self.curr_shoot_position],
             });
+        } else {
+            map_widget = map_widget.add_colored_cells(ColoredCells {
+                color: Color::Green,
+                cells: vec![self.last_opponent_fire_position],
+            });
         }
 
         // Sunk boats

rust/sea_battle_backend/src/data/boats_layout.rs

@@ -85,6 +85,10 @@ impl Coordinates {
         }
     }
 
+    pub fn invalid() -> Self {
+        Self { x: -1, y: -1 }
+    }
+
     pub fn is_valid(&self, rules: &GameRules) -> bool {
         self.x >= 0
             && self.y >= 0