Tile.java

public class Tile {

    /**These Values are being set when initialized */
    int owner = -1;

    /**Initializer for Tile Objects */
    public Tile(){}

    /**Lets you set a new owner;
     * -1 = no one; 0 = Player 1; 1 = Player 2
     * @param owner
     */
    public void setOwner(int player){
        owner = player;
    }

    /**Returns the owner
     * -1 = no one; 0 = Player 1; 1 = Player 2
     * @return owner
     */
    public int getOwner(){
        return owner;
    }

    /**Returns if the Tile-owner is equal to the given Player
     * @param owner
     */
    public boolean isOwner(int player){
        return owner == player;
    }

    /**Whether this Tile is owned by a Player
     */
    public boolean existOwner(){
        return owner != -1;
    }

}