SCR_AIHealingBehavior.c

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// AI healing behaviour
// TODO: You have to handle situation, in which movement can be disabled (in AIConfig component)
 
class SCR_AIHealBehavior : SCR_AIBehaviorBase
{
    IEntity m_EntityToHeal;
    
    SCR_AIInfoComponent m_AIInfo;
    SCR_DamageManagerComponent m_DamageManager;
    
    protected const float PRIORITY_DELAY_MIN_MS = 800.0; // Delay until action returns its max priority
    protected const float PRIORITY_DELAY_MAX_MS = 1200.0;
    
    protected const float MAX_TIME_TO_UNCON_HIGH_PRIORITY_S = 30; // Time in seconds to losing consciousness below which we treat healing ourselves as high priority
    
    protected float m_fTimeCreated_ms;
    protected float m_fPriorityDelay_ms;
    
    //-------------------------------------------------------------------------------------------------------------------------------
    void SCR_AIHealBehavior(SCR_AIUtilityComponent utility, SCR_AIActivityBase groupActivity, IEntity entityToHeal, bool allowHealMove, float priority = PRIORITY_BEHAVIOR_HEAL, float priorityLevel = PRIORITY_LEVEL_NORMAL)
    {
        m_sBehaviorTree = "AI/BehaviorTrees/Chimera/Soldier/Heal.bt";
        m_EntityToHeal = entityToHeal;
        SetPriority(priority);
        m_fPriorityLevel.m_Value = priorityLevel;
        m_fTimeCreated_ms = GetGame().GetWorld().GetWorldTime();
        m_fPriorityDelay_ms = Math.RandomFloat(PRIORITY_DELAY_MIN_MS, PRIORITY_DELAY_MAX_MS);
        
        SCR_AIUtilityComponent aiUtilComp = utility;
        if (!aiUtilComp)
            return;
        
        IEntity owner = aiUtilComp.m_OwnerEntity;
        if (owner)
        {
            m_DamageManager = SCR_DamageManagerComponent.Cast(owner.FindComponent(SCR_DamageManagerComponent));
            m_AIInfo = aiUtilComp.m_AIInfo;
        }
    }
    
    //---------------------------------------------------------------------------------------------------------------------------------
    override int GetCause()
    {
        return SCR_EAIBehaviorCause.DANGER_MEDIUM;
    }   
    
    //---------------------------------------------------------------------------------------------------------------------------------
    override void OnActionCompleted()
    {
        super.OnActionCompleted();
#ifdef WORKBENCH
        SCR_AIDebugVisualization.VisualizeMessage(m_Utility.m_OwnerEntity, "Unit healed", EAIDebugCategory.INFO, 5);
#endif
    }
    
    //---------------------------------------------------------------------------------------------------------------------------------
    override float CustomEvaluate()
    {
        if (!(GetGame().GetWorld().GetWorldTime() - m_fTimeCreated_ms > m_fPriorityDelay_ms))
            return 0;
        
        // We should heal ourselves with high priority if time to uncon is lower then treshold
        if (m_AIInfo && m_AIInfo.GetBleedTimeToUnconscious() < MAX_TIME_TO_UNCON_HIGH_PRIORITY_S)
            return PRIORITY_BEHAVIOR_HEAL_HIGH_PRIORITY;
        
        if (m_Utility.m_ThreatSystem.GetThreatMeasureWithoutInjuryFactor() < SCR_AIThreatSystem.VIGILANT_THRESHOLD)
            return GetPriority();
        
            return 0;
    }
};