Behavior element behavior adding support to track if VR hands point at element.

This behavior tracks if hand controllers are pointing at the element. If hand controllers start pointing at the element they are added to the list and listeners are notified. If the hand controllers stop pointing at the element they are removed from the list and listeners are notified. The behavior itself is passive. It requires to be triggered by the hand controllers elements. The ECBehaviorVRHandPointAt behavior provides this functionality.

This behavior can be used only once on an element.

Element class properties have the prefix vrHandPointedAt. .

This behavior defines no element class properties.

Hand starts pointing at element.

Hand stops pointing at element.

This behavior adds these behavior tree actions if behavior tree is present.

Check one or more vr hand pointed-at parameters. Action succeeds if all parameter value matches their respective vr hand pointed-at parameter otherwise action fails. This action is typically used as first action in a sequence to run the sequence only if a vr hand pointed-at parameter matches (or not).

This is an example of using this action:

<sequence>
  <action name='vrHandPointedAt.check'>
    <parameter name='player'>true</parameter>
  </action>
  <!-- actions here run only if player is pointing at element -->
</sequence>

This behavior adds these behavior tree conditions if behavior tree is present.

Check one or more vr hand pointed-at parameters. Conditions returns true if all parameter value match their respective vr hand pointed-at parameter. This condition is typically used to run an action or sequence of actions as long as vr hand pointed-at conditions are true.

This is an example of using this condition:

<action name='myAction' id='doing something'>
  <parameter name='vrHandPointedAt.player'>true</parameter>
  <condition>vrHandPointedAt.check</condition>
</action>

This behavior does not required other behaviors to be present.

• ECBehaviorBehaviorTree: Add actions and conditions for behavior trees to use.
• ECBehaviorStateMachine: Add actions and conditions for state machine to use and events to send to the state machine.

This behavior does support element class to be persistable (setPersistable).

ECBehaviorVRHandPointedAt.

Since DragonScript Module Version 1.7

• Show outline and interact prompts if player points at object.
• For NPCs to react to player (or other actors) pointing at them (for example looking back at player).
• Show target information if player aims at objects.

class ExampleElementClass extends BehaviorElementClass
   public var ECBehaviorVRHandPointedAt vrHandPointedAt
   
   public func new() super("ExampleElement")
     // Add pointed at behavior. By itself this does nothing yet. Add listeners to the
     // behavior to react to pointing-at changes. This is typically done by other
     // behaviors to provide their functionality
     vrHandPointedAt = ECBehaviorVRHandPointedAt.new(this)
   end
end

Using element class supporting adding behaviors the behavior can be added like this:

<?xml version='1.0' encoding='UTF-8'?>
<elementClass name='MyClass' class='GenericBehaviorElement'>
  <behavior type='ECBehaviorVRHandPointedAt'>
    <!-- optional: use behavior tree with id instead of empty string -->
    <string name='behaviorTree'>second</string>
 
    <!-- optional: use state machine with id instead of empty string -->
    <string name='stateMachine'>second</string>
 
    <!-- set element properties. omit property prefix if used inside behavior tag -->
    <string name='.name'>value</string>
  </behavior>
</elementClass>

• DEExamples Repository