/// <summary>Apply this buff to an entity, which starts everything in motion. Either `OnStart` or `OnStack` will be called, depending on whether the entity already has an active buff with the same buff ID.</summary>
public void Apply(Entity entity)
{
if (this.entity != null)
{
throw new Exception("BuffStuff.Buff: this buff has already been applied to an entity, use a new buff instead of re-applying an existing buff");
}
BuffManager.ApplyBuff(entity, this);
}
/// <summary>Forcibly remove this buff from its entity, without calling `OnExpire` or any other methods. You may want to use the auto-expiry system instead of calling this method.</summary>
public void Remove()
{
BuffManager.RemoveBuff(entity, this);
}