public override Task <Entity> CreateEntity(EntityHierarchyItemViewModel parent)
{
var name = ComputeNewName(parent, "Instance");
var component = new InstanceComponent();
return(CreateEntityWithComponent(name, component));
}
public void EnemyShipDestroyed(GameObject gameObject)
{
var items = new[]
{
new { Texture = SpaceGraphics.EnemyShipChunkAssets[0], Direction = new Vector2(-1, -1) },
new { Texture = SpaceGraphics.EnemyShipChunkAssets[1], Direction = new Vector2(1, -1) },
new { Texture = SpaceGraphics.EnemyShipChunkAssets[2], Direction = new Vector2(-1, 0) },
new { Texture = SpaceGraphics.EnemyShipChunkAssets[3], Direction = new Vector2(1, 0) }
};
foreach (var item in items)
{
var centre = gameObject.CentreLocal;
var direction = item.Direction + gameObject.Velocity;
var chunk = new GameObject("EnemyChunk", gameObject.Centre + (centre * item.Direction));
var sprite = new SpriteComponent(item.Texture, color: Color.White);
var instance = new InstanceComponent();
var outOfBounds = new OutOfBoundsComponent(ObjectEvent.RemoveEntity);
var movement = new MovementComponent(gameObject.Velocity.Y, FaceDirection.Down, direction);
chunk.AddComponent(outOfBounds);
chunk.AddComponent(sprite);
chunk.AddComponent(instance);
chunk.AddComponent(movement);
gameObject.GameLayer.AddGameObject(chunk);
}
}
public void Update(GameTime gameTime)
{
if (gameTime.TotalGameTime > _lastTimeSpan.Add(new TimeSpan(0, 0, 0, 1)))
{
_lastTimeSpan = gameTime.TotalGameTime;
// TODO: Use perpendicular
var y = _random.Next(0, GameConstants.ScreenBoundary.Bottom);
var isLeftDirection = _random.Next(0, 2) == 1;
if (isLeftDirection)
{
var x = GameConstants.ScreenBoundary.Right;
var asteroid = new GameObject("Asteroid", new Vector2(x, y));
var asteroidInstance = new InstanceComponent();
var asteroidGraphics = new SpriteComponent(GetRandomTexture());
var asteroidMovement = new MovementComponent(1, FaceDirection.Left, new Vector2(-1, 0));
var asteroidBoundary = new BoundaryComponent(SpaceGraphics.BoundaryAsset.First(), asteroidGraphics.Width, asteroidGraphics.Height);
var asteroidOutOfBounds = new OutOfBoundsComponent(ObjectEvent.RemoveEntity, -50, 0, -50, 0);
asteroid.AddComponent(asteroidInstance);
asteroid.AddComponent(asteroidGraphics);
asteroid.AddComponent(asteroidMovement);
asteroid.AddComponent(asteroidBoundary);
asteroid.AddComponent(asteroidOutOfBounds);
_gameLayer.AddGameObject(asteroid);
}
else
{
var x = GameConstants.ScreenBoundary.Left;
var asteroid = new GameObject("Asteroid", new Vector2(x, y));
var asteroidInstance = new InstanceComponent();
var asteroidGraphics = new SpriteComponent(GetRandomTexture());
var asteroidMovement = new MovementComponent(1, FaceDirection.Right, new Vector2(1, 0));
var asteroidBoundary = new BoundaryComponent(SpaceGraphics.BoundaryAsset.First(), asteroidGraphics.Width, asteroidGraphics.Height);
var asteroidOutOfBounds = new OutOfBoundsComponent(ObjectEvent.RemoveEntity, -50, 0, -50, 0);
asteroid.AddComponent(asteroidInstance);
asteroid.AddComponent(asteroidGraphics);
asteroid.AddComponent(asteroidMovement);
asteroid.AddComponent(asteroidBoundary);
asteroid.AddComponent(asteroidOutOfBounds);
_gameLayer.AddGameObject(asteroid);
}
}
}
public void Update(GameTime gameTime)
{
var enemyCount = _gameLayer.GameObjects.Count(gameObject => gameObject.GameType == _enemyName);
_elapsedTimeMilliseconds += gameTime.ElapsedGameTime.TotalMilliseconds;
if (_elapsedTimeMilliseconds > _spawnDelayMilliseconds &&
enemyCount < _currentMaximumEnemies &&
enemyCount < _totalMaximumEnemies)
{
_elapsedTimeMilliseconds = 0;
var xLocation = _random.Next(0, GameConstants.ScreenBoundary.Right - _shipTexture.Width);
var gameObject = new GameObject(_enemyName, new Vector2(xLocation, 0));
var sprite = new SpriteComponent(_shipTexture);
var movement = new MovementComponent(1, FaceDirection.Down, new Vector2(0, _speed));
gameObject.AddComponent(sprite);
gameObject.AddComponent(movement);
var bullet = new BulletComponent(_bulletName, SpaceGraphics.BulletAsset[0], movement, ignoreCollisionTypes: _enemyName);
var timedAction = new TimedActionComponent(ObjectEvent.Fire, _bulletDelayMilliseconds);
gameObject.AddComponent(bullet);
gameObject.AddComponent(timedAction);
var boundary = new BoundaryComponent(SpaceGraphics.BoundaryAsset.First(), _shipTexture.Width, _shipTexture.Height, true, false, _enemyName);
var instance = new InstanceComponent();
var outOfBounds = new OutOfBoundsComponent(ObjectEvent.RemoveEntity);
gameObject.AddComponent(boundary);
gameObject.AddComponent(instance);
gameObject.AddComponent(outOfBounds);
var score = new ObjectEventComponent(ObjectEvent.CollisionEnter, IncreaseScore);
var deathSound = new EventSoundComponent(_deathSound, ObjectEvent.CollisionEnter);
var collisionAction = new ObjectEventComponent(ObjectEvent.CollisionEnter, CollisionAction);
gameObject.AddComponent(score);
gameObject.AddComponent(deathSound);
gameObject.AddComponent(collisionAction);
foreach (var objectEventAction in _eventActions)
{
var objectEvent = new ObjectEventComponent(objectEventAction.Item1, objectEventAction.Item2);
gameObject.AddComponent(objectEvent);
}
_gameLayer.AddGameObject(gameObject);
}
}
