public void HasComponent()
{
const int entityId = 0;
var mapper = new ComponentMapper <Transform2>(3, _ => { });
var component = new Transform2();
Assert.False(mapper.Has(entityId));
mapper.Put(entityId, component);
Assert.True(mapper.Has(entityId));
}
public void PutAndGetComponent()
{
const int entityId = 3;
var mapper = new ComponentMapper <Transform2>(1, _ => { });
var component = new Transform2();
mapper.Put(entityId, component);
Assert.Equal(typeof(Transform2), mapper.ComponentType);
Assert.True(mapper.Components.Count >= 1);
Assert.Same(component, mapper.Get(entityId));
}
public void OnPut()
{
const int entityId = 3;
var mapper = new ComponentMapper <Transform2>(1, _ => { });
var component = new Transform2();
mapper.OnPut += (entId) =>
{
Assert.Equal(entityId, entId);
Assert.Same(component, mapper.Get(entityId));
};
mapper.Put(entityId, component);
}
public void OnDelete()
{
const int entityId = 1;
var mapper = new ComponentMapper <Transform2>(2, _ => { });
var component = new Transform2();
mapper.OnDelete += (entId) =>
{
Assert.Equal(entityId, entId);
Assert.False(mapper.Has(entityId));
};
mapper.Put(entityId, component);
mapper.Delete(entityId);
}
public override void Update(GameTime gameTime)
{
var elapsedSeconds = gameTime.GetElapsedSeconds();
foreach (var entityId in ActiveEntities)
{
var transform = _transformMapper.Get(entityId);
var raindrop = _raindropMapper.Get(entityId);
raindrop.Velocity += new Vector2(0, 500) * elapsedSeconds;
transform.Position += raindrop.Velocity * elapsedSeconds;
if (transform.Position.Y >= 480 && !_expiryMapper.Has(entityId))
{
for (var i = 0; i < 3; i++)
{
var velocity = new Vector2(_random.NextSingle(-100, 100), -raindrop.Velocity.Y * _random.NextSingle(0.1f, 0.2f));
var id = CreateRaindrop(transform.Position.SetY(479), velocity, (i + 1) * 0.5f);
_expiryMapper.Put(id, new Expiry(1f));
}
DestroyEntity(entityId);
}
}
_spawnDelay -= gameTime.GetElapsedSeconds();
if (_spawnDelay <= 0)
{
for (var q = 0; q < 50; q++)
{
var position = new Vector2(_random.NextSingle(0, 800), _random.NextSingle(-240, -480));
CreateRaindrop(position);
}
_spawnDelay = _random.NextSingle(_minSpawnDelay, _maxSpawnDelay);
}
}
