public MapObject(ObjectDescriptor descriptor, ResourceManager resources, Renderer renderer, Vector position)
{
SpriteDescriptor spriteDesc = resources.GetSpriteDescriptor(descriptor.Sprites[descriptor.DefaultSprite]);
sprite = new Sprite(spriteDesc, resources);
Position = new Vector(position);
DisplayPosition = new Vector(position);
this.renderer = renderer;
sprite.PlayAnimation(spriteDesc.DefaultAnimation, true);
Name = descriptor.Name;
ExtraProperties = new Dictionary<string, string>();
}