private void DrawEntities <T>(GameObjectList gameObjects) where T : COpacity
{
var mapObjects = gameObjects.All(typeof(CSprite), typeof(CAnimation), typeof(CPosition));
foreach (var mapObject in mapObjects)
{
var sprite = mapObject.Components.Get <CSprite>();
var animation = mapObject.Components.Get <CAnimation>();
var position = mapObject.Components.Get <CPosition>();
var opacity = 1f;
// todo: figure out a nice way of handling opacity when entities have both
if (mapObject.Components.TryGet(out T op))
{
opacity = op.Opacity != 0 ? op.Opacity : 1;
}
var positionVec = position.Position;
if (mapObject.Components.TryGet(out CSize size))
{
positionVec += (size.Size / 2);
}
_spriteBatch.Draw(sprite.Texture, positionVec,
animation.GetFrame(), Color.White * opacity, 0, sprite.Origin, Vector2.One, SpriteEffects.None, 0f);
}
}