implement Location.java

Java-Knight/src/main/java/org/project/location/Location.java

@@ -3,26 +3,75 @@ package org.project.location;
 import org.project.entity.enemies.Enemy;
 
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 
 public class Location {
-    private String name;
 
-    private ArrayList<Enemy> enemies;
+    private final String name;
 
-    public Location(ArrayList<Location> locations, ArrayList<Enemy> enemies) {
-        this.locations = locations;
-        this.enemies = enemies;
+    private final List<Location> connectedLocations;
+    private final List<Enemy> enemies;
+
+    public Location(String name) {
+        this.name = name;
+        this.connectedLocations = new ArrayList<>();
+        this.enemies = new ArrayList<>();
+    }
+
+    public Location(String name, List<Location> connectedLocations, List<Enemy> enemies) {
+        this.name = name;
+
+        this.connectedLocations =
+                connectedLocations != null ? new ArrayList<>(connectedLocations) : new ArrayList<>();
+
+        this.enemies =
+                enemies != null ? new ArrayList<>(enemies) : new ArrayList<>();
     }
 
     public String getName() {
         return name;
     }
 
-    public ArrayList<Location> getLocations() {
-        return locations;
+    public List<Location> getConnectedLocations() {
+        return Collections.unmodifiableList(connectedLocations);
     }
 
-    public ArrayList<Enemy> getEnemies() {
-        return enemies;
+    public List<Enemy> getEnemies() {
+        return Collections.unmodifiableList(enemies);
+    }
+
+    // ------------------------------------
+    // ADD / REMOVE LOCATIONS
+    // ------------------------------------location
+
+    public void connect(Location other) {
+        if (other == null || other == this) return;
+
+        if (!connectedLocations.contains(other)) {
+            connectedLocations.add(other);
+        }
+
+        if (!other.connectedLocations.contains(this)) {
+            other.connectedLocations.add(this);
+        }
+    }
+
+
+    public void removeLocation(Location location) {
+        connectedLocations.remove(location);
+    }
+
+    // ------------------------------------
+    // ADD / REMOVE ENEMIES
+    // ------------------------------------
+    public void addEnemy(Enemy enemy) {
+        if (enemy != null) {
+            enemies.add(enemy);
+        }
+    }
+
+    public void removeEnemy(Enemy enemy) {
+        enemies.remove(enemy);
     }
 }