private void moveEachInFleetEnemyLeft(EnemyShip enemy)
{
if (enemy.X < this.backgroundWidth)
{
enemy.MoveLeft();
}
}
private void killEnemiesHit(EnemyShip enemy)
{
if (this.playerAmmo.Any())
{
this.removeEachEnemyHitByBulletFromGame(enemy);
}
}
private void moveEachEnemyInFleetRight(EnemyShip enemy)
{
if (enemy.X < this.backgroundWidth)
{
enemy.MoveRight();
}
}
/// <summary>
/// Removes the enemy from fleet.\
/// Precondition: enemyRows
/// Postcondition: Enemy is removed from one its list and the size of that list is decreased.
/// </summary>
/// <param name="enemyShip">The enemy ship to be removed.</param>
public void RemoveEnemyFromFleet(EnemyShip enemyShip)
{
foreach (var enemyRow in Fleet)
{
if (enemyRow.Contains(enemyShip))
{
enemyRow.Remove(enemyShip);
}
}
}
private void fireShipWhenShipHasNotFired(EnemyShip firingShip)
{
var isEnemyWaiting = this.checkIfEnemyIsWaiting(firingShip);
if (!this.enemyAmmo.Any() || !isEnemyWaiting)
{
this.addEnemyBulletsToScreen(firingShip);
firingShip.HasFired = true;
}
}
private void removeEachEnemyHitByBulletFromGame(EnemyShip enemy)
{
List <Bullet> playerBulletsFired = new List <Bullet>(this.playerAmmo);
foreach (var bulletFired in playerBulletsFired)
{
this.removeEnemyHitByBulletFromGame(bulletFired, enemy);
this.checkBonusShipHit(bulletFired);
}
}
private void addBonusEnemyToGame()
{
var randomInt = RandomUtil.GetNextRandomFromMax(30);
if (this.bonusEnemyShip == null)
{
this.bonusEnemyShip = (EnemyShip)ShipFactory.SelectShip(ShipFactory.ShipSelections.BonusShip);
this.currentBackground.Children.Add(this.bonusEnemyShip.Sprite);
this.placeBonusEnemyShip();
}
}
private void addEnemyBulletsToScreen(EnemyShip enemy)
{
var randomBullet = new Bullet();
var maxAmmo = 3;
if (this.enemyAmmo.Count < maxAmmo)
{
this.enemyAmmo.Add(randomBullet);
this.currentBackground.Children.Add(randomBullet.Sprite);
this.placeEnemyBullet(enemy, randomBullet);
}
}
private bool checkIfEnemyIsWaiting(EnemyShip enemy)
{
bool isEnemyWaiting = false;
if (this.enemyAmmo.Any())
{
var bulletClosetToShip = this.enemyAmmo.Max(bullet => bullet.Y + bullet.Height);
isEnemyWaiting = bulletClosetToShip < enemy.Y - enemy.Height;
}
return(isEnemyWaiting);
}
private void setEnemyYLocation(int level, EnemyShip currentEnemy)
{
if (level == 1)
{
currentEnemy.Y = this.backgroundHeight * Half;
}
else
{
var previousLevel = level - 1;
var prevEnemyRow = this.fleet.GetEnemyShipsByLevel(previousLevel);
var higherLevelEnemy = prevEnemyRow.First();
currentEnemy.Y = higherLevelEnemy.Y - (EnemyShipOffset + currentEnemy.Height);
}
}
private void removeEnemyHitByBulletFromGame(Bullet bullet, EnemyShip enemy)
{
if (this.bulletHitShip(bullet, enemy))
{
if (enemy.Level == 0)
{
this.gameScoreboard.IncreaseScore(10000);
this.currentBackground.Children.Remove(this.bonusEnemyShip.Sprite);
}
this.gameScoreboard.IncreaseScore(enemy.Level);
this.fleet.RemoveEnemyFromFleet(enemy);
this.removeBulletFromGame(bullet);
this.currentBackground.Children.Remove(enemy.Sprite);
}
}
public AllEnemyShips(int numberOfEachShip, int amountOfLevels)
{
int levelCap = ++amountOfLevels;
this.enemies = new List <EnemyShip>();
for (int level = 1; level < levelCap; level++)
{
for (int i = 0; i < numberOfEachShip; i++)
{
EnemyShip enemy = new EnemyShip(level);
this.enemies.Add(enemy);
}
}
}
private void removeBonusShipFromGame()
{
this.currentBackground.Children.Remove(this.bonusEnemyShip.Sprite);
this.bonusEnemyShip = null;
this.BonusEnemyShipVisible = false;
}
private double calculateNextShipXOrigin(EnemyShip firstShipOfPreviousRow)
{
return(firstShipOfPreviousRow.X - (firstShipOfPreviousRow.Width +
EnemyShipOffset));
}
private void placeEnemyBullet(EnemyShip enemy, Bullet bullet)
{
bullet.X = enemy.X + enemy.Sprite.ActualWidth * Half + bullet.X * Half;
bullet.Y = enemy.Y;
}