Added a player handler so the code look a bit better

src/ei/game/player/HumanPlayer.java

@@ -6,11 +6,11 @@ import ei.engine.scene.Node;
 import ei.game.scene.GameEntity;
 import ei.game.scene.units.Unit;
 
-public class Human {
+public class HumanPlayer extends Player{
 	private ArrayList<GameEntity> units;
 	private Node unitsNode;
 	
-	public Human(){
+	public HumanPlayer(){
 		units = new ArrayList<GameEntity>();
 		unitsNode = new Node("UnitsNode");
 	}
@@ -28,4 +28,10 @@ public class Human {
 	public Node getNode(){
 		return unitsNode;
 	}
+
+	public void update() {
+		for(int i=0; i<units.size() ;i++){
+			units.get(i).update();			
+		}
+	}
 }

src/ei/game/player/Player.java

@@ -0,0 +1,15 @@
+package ei.game.player;
+
+import ei.engine.scene.Node;
+import ei.game.scene.units.Unit;
+
+public abstract class Player {
+	
+	public abstract void addUnit(Unit u);
+	
+	public abstract void removeUnit(Unit u);
+	
+	public abstract Node getNode();
+	
+	public abstract void update();
+}

src/ei/game/player/PlayerHandler.java

@@ -0,0 +1,63 @@
+package ei.game.player;
+
+import java.util.ArrayList;
+
+public class PlayerHandler {
+	// The instance of this class
+	private static PlayerHandler instance;
+	// The player list
+	private ArrayList<Player> players;
+	
+	/**
+	 * Creates a PlayerHandler
+	 *
+	 */
+	public PlayerHandler(){
+		players = new ArrayList<Player>();
+	}
+	
+	/**
+	 * Add a player to the handler
+	 * 
+	 * @param p The player to add to the handler
+	 * @return true if added else false
+	 */
+	public boolean addPlayer(Player p){
+		if(!players.contains(p)){
+			players.add(p);
+			return true;
+		}
+		return false;
+	}
+	
+	/**
+	 * Removes a player from the handler
+	 * @param p The player to remove
+	 * @return true if succesful else false
+	 */
+	public boolean removePlayer(Player p){
+		if(players.contains(p)){
+			players.remove(p);
+			return true;
+		}
+		return false;
+	}
+	
+	public void update(){
+		for(int i=0; i<players.size() ;i++){
+			players.get(i).update();
+		}
+	}
+	
+	/**
+	 * Returns the instance of this class
+	 * 
+	 * @return The instance
+	 */
+	public static PlayerHandler getInstance(){
+		if(instance == null){
+			instance = new PlayerHandler();
+		}
+		return instance;
+	}
+}