geyserarea.c

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enum EGeyserState
{
    DORMANT             = 0,
    ERUPTION_SOON       = 1,    // bubbling
    ERUPTING_PRIMARY    = 2,    // main particle
    ERUPTING_SECONDARY  = 4     // secondary tall particle
}
 
class GeyserArea : EffectArea
{
    protected const int     UPDATE_RATE             = 1000; // ms
    protected const float   PRE_ERUPTION_DURATION   = 10;   // delay before the geysier activates (sec)
    protected const float   ERUPTION_TALL_DURATION  = 3;    // lenght of secondary eruption (sec)
    protected const float   ERUPTION_TALL_DELAY     = 3;    // min delay between secondary eruptions (sec)
    
    protected bool          m_SecondaryActive;  
    
    protected int           m_TimeElapsed;          // seconds
    protected int           m_TimeSecondaryElapsed; // seconds
    protected float         m_RandomizedInterval;   // randomized interval to 80% - 120% of the set value
    protected float         m_RandomizedDuration;   // randomized duration to 80% - 120% of the set value
    protected GeyserTrigger m_GeyserTrigger;
    
    override void DeferredInit()
    {
        super.DeferredInit();
        
        InitZone();     
    }
    
    override void EEDelete( EntityAI parent )
    {       
        if (GetGame().IsClient() && m_GeyserTrigger)
            m_GeyserTrigger.StopEffects();
        
        super.EEDelete( parent );
    }
    
    override void InitZoneServer()
    {
        super.InitZoneServer();
                
        if ( m_TriggerType != "" )
        {
            CreateTrigger(m_PositionTrigger, m_Radius);
            m_GeyserTrigger = GeyserTrigger.Cast(m_Trigger);
        }
        
        GetGame().GetCallQueue(CALL_CATEGORY_SYSTEM).CallLater(TickState, UPDATE_RATE, true);
        
        RandomizeIntervals();
    }   
        
    void TickState()
    {
        m_TimeElapsed += UPDATE_RATE * 0.001;
    
        if (m_GeyserTrigger.CheckGeyserState(EGeyserState.DORMANT))
        {
            if (m_TimeElapsed > PRE_ERUPTION_DURATION)
            {
                #ifdef ENABLE_LOGGING
                Debug.Log(m_Name + ": ERUPTION_SOON, interval: " + m_RandomizedInterval + " sec");
                #endif
                
                m_GeyserTrigger.AddGeyserState(EGeyserState.ERUPTION_SOON);
                
                m_TimeElapsed = 0;
            }
        }
        else if (m_GeyserTrigger.CheckGeyserState(EGeyserState.ERUPTION_SOON))
        {
            if (m_TimeElapsed > m_RandomizedInterval)
            {
                #ifdef ENABLE_LOGGING
                Debug.Log(m_Name + ": ERUPTING_PRIMARY, interval: " + m_RandomizedDuration + " sec");
                #endif
                
                m_GeyserTrigger.RemoveGeyserState(EGeyserState.ERUPTION_SOON);
                m_GeyserTrigger.AddGeyserState(EGeyserState.ERUPTING_PRIMARY);
                
                KillEntitiesInArea();
                
                m_TimeSecondaryElapsed = -1;
                m_SecondaryActive = false;
                m_TimeElapsed = 0;
            }
        }
        else if (m_GeyserTrigger.CheckGeyserState(EGeyserState.ERUPTING_PRIMARY))
        {
            if (m_TimeElapsed > m_RandomizedDuration)
            {   
                RandomizeIntervals();
                
                #ifdef ENABLE_LOGGING
                Debug.Log(m_Name + ": ERUPTION_SOON, interval: " + m_RandomizedInterval + " sec");
                #endif
                
                m_GeyserTrigger.RemoveGeyserState(EGeyserState.ERUPTING_PRIMARY);
                m_GeyserTrigger.RemoveGeyserState(EGeyserState.ERUPTING_SECONDARY);
                m_GeyserTrigger.AddGeyserState(EGeyserState.ERUPTION_SOON);
 
                m_TimeElapsed = 0;
            }
            else if (Math.IsInRange(m_TimeElapsed, ERUPTION_TALL_DELAY, m_RandomizedDuration - ERUPTION_TALL_DURATION))     // Ensure burst do not overlap with state transitions
            {
                if (!m_SecondaryActive && m_TimeSecondaryElapsed < 0) 
                {
                    if (Math.RandomBool())  // 50% chance to start secondary eruption every update
                    {
                        m_GeyserTrigger.AddGeyserState(EGeyserState.ERUPTING_SECONDARY);
                        
                        m_TimeSecondaryElapsed = 0;
                        m_SecondaryActive = true;
                    }
                }
                else if (m_TimeSecondaryElapsed >= 0) 
                {   
                    m_TimeSecondaryElapsed += UPDATE_RATE * 0.001;
                    
                    if (m_SecondaryActive && m_TimeSecondaryElapsed > ERUPTION_TALL_DURATION)
                    {
                        m_GeyserTrigger.RemoveGeyserState(EGeyserState.ERUPTING_SECONDARY);
                        m_SecondaryActive = false;
                    }
                    else if (m_TimeSecondaryElapsed > (ERUPTION_TALL_DURATION + ERUPTION_TALL_DELAY))
                    {
                        m_TimeSecondaryElapsed = -1;
                    }
                }
            }
        }   
    }
    
    private void RandomizeIntervals()
    {
        m_RandomizedInterval = Math.RandomInt(m_EffectInterval * 0.8, m_EffectInterval * 1.2);
        m_RandomizedDuration = Math.RandomInt(m_EffectDuration * 0.8, m_EffectDuration * 1.2);
    }
    
    void KillEntitiesInArea()
    {
        array<Object> nearestObjects = new array<Object>();
        GetGame().GetObjectsAtPosition(m_Position, m_Radius, nearestObjects, null);
        
        foreach (Object obj : nearestObjects)
        {
            EntityAI entity = EntityAI.Cast(obj);
            if (entity)
                entity.ProcessDirectDamage(DamageType.CUSTOM, this, "", "HeatDamage", "0 0 0", 1000);
        }
    }
}