Problem with QuestDomain

[AArtlone]

Hi!

I continue exploring the QuestMachine and today I have faced a small problem with QuestDomain.

My problem was the following:

• There is an NPC game object in the scene

• The game object has a Collider and the QuestDomain component

• I then use this QuestDomain as a reference in some other script, and I add entities when needed

• But today I noticed that if any other entity collides with the NPC, it would be added to the QuestDomain

• This is because QuestDomain script uses OnTriggerEnter

This is not something that I would want to happen. One reason is that in general, I do not want to add Entities when a collision happens, instead, I want to control it from somewhere else. Besides, both OnTriggerEnter and OnTriggerExit call GetComponentInChildren, which is something we try to avoid using.

Also, in the manual you say:

• "Domains don't always have to represent physical
  areas; they can represent anything that can contain quest entities, such as a character's inventory"

How can you then have a non-physical representation of the domain, if the QuestDomain component has OnTrigger methods?

The only way to represent the domain in the scene is by having a QuestDomain component on one of the game objects, right?

What if I want to have a character game object, that has a collider component and a QuestDomain component. But I don't want every entity that the character collides with to be added to this QuestDomain. How would I achieve this?

One way would be to ensure that the game object that has the QuestDomain component, does not have a Collider component. But this does not seem like a reliable solution.

Perhaps I am missing something. Looking forward to your response.

Artem

[Tony Li]

Hi Artem,

The purpose of the QuestDomain component is to identify entities that are in a trigger area so they can be considered for quests.

If you don't want to do that, here are two options:

1. Remove the collider and manually add an remove entities using QuestDomain.Add/RemoveEntity. (As you mentioned.)

2. Or remove the QuestDomain component entirely. Assign an event handler to the NPC's QuestGeneratorEntity.updateWorldModel event. Manually add facts to the world model. Example:

Code: Select all

GetComponent<QuestGeneratorEntity>().updateWorldModel += OnUpdateWorldModel;

void OnUpdateWorldModel(WorldModel worldModel)
{
    worldModel.AddFact(new Fact(domainType, entityType, count));
}

[AArtlone]

Hmmm, I see. Thanks for the example!