add 3 distinct outcomes for the game

src/game.rs

@@ -3,7 +3,19 @@ use crate::level_generator::LevelGenerator;
 use crate::player::Player;
 use crate::position::Position;
 
-pub const LEVELS: usize = 2;
+pub const LEVELS: usize = 10;
+
+#[derive(PartialEq)]
+/// represents a state of a game
+pub enum GameState {
+    /// the game is ongoing (neither won or lost)
+    RUNNING,
+    /// the player died
+    LOST,
+    /// the player reached the Ω
+    WON,
+}
+
 
 /// the main structure to hold all information about the ongoing game
 pub struct Game {
@@ -31,6 +43,31 @@ impl Game {
         g
     }
 
+    /// returns true if the player is dead (life <= 0)
+    fn player_is_dead(&self) -> bool { self.get_player().get_life() <= 0 }
+    /// returns true if the player is standing on the End element
+    fn player_reached_goal(&mut self) -> bool {
+        match self.next_element(0, 0) {
+            None => {}
+            Some(a) => {
+                match a {
+                    StructureElement::End => { return true; }
+                    _ => {}
+                }
+            }
+        };
+        false
+    }
+    /// returns the state of the game (depending on player's life and position)
+    pub fn get_game_state(&mut self) -> GameState {
+        if self.player_is_dead() {
+            return GameState::LOST;
+        }
+        if self.player_reached_goal() {
+            return GameState::WON;
+        }
+        GameState::RUNNING
+    }
     pub fn get_player(&self) -> &Player {
         &self.player
     }