public void Initialize(int height, Vector2 firstPos, Vector2 alienSize, float margin)
{
aliens = new List<Alien>(height);
for (int i = 0; i < height; ++i) {
AlienType type;
switch (height) {
case 0:
case 1:
type = AlienType.Crab;
break;
case 2:
case 3:
type = AlienType.Ant;
break;
default:
type = AlienType.Squid;
break;
}
aliens.Add( new Alien(this, type, new Vector2(firstPos.X, firstPos.Y + i * (alienSize.Y + margin)), alienSize) );
}
FirstAlien = aliens[0];
LastAlien = aliens[height - 1];
UpdateDimensions();
}
public Alien(Alien alien)
: base(alien)
{
OnDestroyedEvent += OnDestroy;
DeltaX = alien.DeltaX;
DeltaY = alien.DeltaY;
Command = alien.Command;
}
public static Alien CopyAndFlip(Alien alien, CoordinateFlipper flipper, Dictionary<int, Entity> flippedEntities)
{
if (flippedEntities.ContainsKey(alien.Id)) return (Alien) flippedEntities[alien.Id];
var copy = new Alien(alien)
{
PlayerNumber = alien.PlayerNumber == 1 ? 2 : 1,
DeltaX = -alien.DeltaX,
DeltaY = -alien.DeltaY,
X = flipper.CalculateFlippedX(alien.X),
Y = flipper.CalculateFlippedY(alien.Y)
};
flippedEntities.Add(copy.Id, copy);
return copy;
}
public static List<Alien> Build(int playerNumber, int waveSize, int startX, int deltaX)
{
var map = Match.GetInstance().Map;
var deltaY = playerNumber == 1 ? -1 : 1;
var middleHeightOfMap = map.Height / 2;
// make sure aliens dont go out of map
while (map.IsOutOfXBounds(startX + 3 * deltaX * (waveSize - 1)))
{
startX -= 3 * deltaX;
}
// Spawn
var wave = new List<Alien>();
var alienY = middleHeightOfMap + deltaY;
var alienX = startX;
Alien alien = null;
for (var i = 0; i < waveSize; i++)
{
try
{
alien = new Alien(playerNumber) { X = alienX, Y = alienY };
alien.DeltaX = deltaX;
map.AddEntity(alien);
wave.Add(alien);
}
catch (CollisionException ex)
{
ex.Entity.Destroy();
if (ex.Entity.GetType() == typeof(Missile))
{
((Missile)ex.Entity).ScoreKill(alien);
}
}
alienX += 3 * deltaX;
}
return wave;
}
private void IssueShootOrder(Alien alien)
{
if (alien == null) return;
ShotEnergy -= ShotEnergyCost;
switch (alien.Command)
{
case AlienCommand.MoveForward:
alien.Command = AlienCommand.MoveForwardAndShoot;
break;
case AlienCommand.MoveSideways:
alien.Command = AlienCommand.MoveSidewaysAndShoot;
break;
}
}
public Alien TestAddAlien(int x, int y)
{
var alien = new Alien(PlayerNumber) {X = x, Y = y};
Match.GetInstance().Map.AddEntity(alien);
Waves.Insert(0, new List<Alien> {alien});
return alien;
}
public void RemoveAlien(Alien alien)
{
aliens.Remove(alien);
if (alien == FirstAlien || alien == LastAlien) {
if (aliens.Count == 0) {
FirstAlien = null;
LastAlien = null;
} else {
FirstAlien = aliens[0];
LastAlien = aliens[aliens.Count - 1];
}
UpdateDimensions();
}
}
public void TestBuildShieldDestroysAlienWithExplosion()
{
// Given
var game = Match.GetInstance();
game.StartNewGame();
var map = game.Map;
var player = game.GetPlayer(1);
var ship = player.Ship;
// When
var alien = new Alien(2) {X = ship.X, Y = ship.Y - 3, DeltaX = 1};
map.AddEntity(alien);
ship.Command = ShipCommand.BuildShield;
game.Update();
// Then
Assert.IsFalse(alien.Alive, "Alien was not destroyed");
Assert.IsNotNull(map.GetEntity(ship.X, ship.Y - 1),
"Left rear shield tile is missing");
Assert.IsNotNull(map.GetEntity(ship.X + 1, ship.Y - 1),
"Center rear shield tile is missing");
Assert.IsNotNull(map.GetEntity(ship.X + 2, ship.Y - 1),
"Right rear shield tile is missing");
Assert.IsNull(map.GetEntity(ship.X, ship.Y - 2),
"Left middle shield tile was not destroyed");
Assert.IsNull(map.GetEntity(ship.X + 1, ship.Y - 2),
"Center middle shield tile was not destroyed");
Assert.IsNotNull(map.GetEntity(ship.X + 2, ship.Y - 2),
"Right middle shield tile is missing");
Assert.IsNull(map.GetEntity(ship.X, ship.Y - 3),
"Left front shield tile was not destroyed");
Assert.IsNull(map.GetEntity(ship.X + 1, ship.Y - 3),
"Center front shield tile was not destroyed");
Assert.IsNotNull(map.GetEntity(ship.X + 2, ship.Y - 3),
"Right front shield tile is missing");
}