private static void CollidePlayerBullet(PlayerVerticalShooter player, EnemyBullet bullet) { player.InflictDamage(bullet); bullet.InflictDamage(player); }
private static void CollidePlayerEnemy(PlayerVerticalShooter player, EnemyShip enemy) { player.InflictDamage(enemy); enemy.InflictDamage(player); }