SCR_AIDangerReaction_Explosion.c

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[BaseContainerProps()]
class SCR_AIDangerReaction_Explosion : SCR_AIDangerReaction
{
    private static const float EXPLOSION_OBSERVE_DISTANCE = 220; // Maximal distance from explosion to trigger observe behavior
    
    void CreateObserveUnknownBehavior(SCR_AIUtilityComponent utility, vector observeReactionPosition)
    {
        if (observeReactionPosition == vector.Zero || utility.m_CombatComponent.GetCurrentTarget() != null)
            return;
                
        vector myOrigin = utility.m_OwnerEntity.GetOrigin();
                                
        SCR_AIMoveAndInvestigateBehavior investigateBehavior = SCR_AIMoveAndInvestigateBehavior.Cast(utility.FindActionOfType(SCR_AIMoveAndInvestigateBehavior));
        SCR_AIObserveUnknownFireBehavior oldObserveBehavior = SCR_AIObserveUnknownFireBehavior.Cast(utility.FindActionOfType(SCR_AIObserveUnknownFireBehavior));
        
        // Exit if investigating
        if (investigateBehavior && investigateBehavior.GetActionState() == EAIActionState.RUNNING)
            return;
        
        // Exit if already observing something else
        if (oldObserveBehavior)
            return;
        
        SCR_AIObserveUnknownFireBehavior observeBehavior = new SCR_AIObserveUnknownFireBehavior(utility, null, posWorld: observeReactionPosition, useMovement: false);
        utility.AddAction(observeBehavior);
    }
    
    //------------------------------------------------------------------------------------------------
    override bool PerformReaction(notnull SCR_AIUtilityComponent utility, notnull SCR_AIThreatSystem threatSystem, AIDangerEvent dangerEvent)
    {
        IEntity ownerEntity = utility.m_OwnerEntity;
        
        if (!ownerEntity)
            return false;
        
        vector position = dangerEvent.GetPosition();
        float distance = vector.Distance(ownerEntity.GetOrigin(), position);
        
        if (distance > SCR_AIThreatSystem.EXPLOSION_MAX_DISTANCE)
            return false;
        
        // Increase threat level
        threatSystem.ThreatExplosion(distance);
        
        // Look at explosion
        utility.m_LookAction.LookAt(position, SCR_AILookAction.PRIO_UNKNOWN_TARGET, 1.5);
        
        // Observe if not investigating or already observing something else
        if (distance <= EXPLOSION_OBSERVE_DISTANCE)
            CreateObserveUnknownBehavior(utility, position);
        
        return true;
    }
};