private static void CollideEnemyAlly(EnemyShip enemy, AlliedShip ally)
{
enemy.InflictDamage(ally);
ally.InflictDamage(enemy);
}
private static void CollideBulletAlly(EnemyBullet bullet, AlliedShip ally)
{
bullet.InflictDamage(ally);
ally.InflictDamage(bullet);
}