contaminatedarea_dynamic.c

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// The parameters for the explosion light when creating dynamic area
class ShellLight : PointLightBase
{
    protected float m_DefaultBrightness = 10;
    protected float m_DefaultRadius = 100;
    
    void ShellLight()
    {
        SetVisibleDuringDaylight(false);
        SetRadiusTo(m_DefaultRadius);
        SetBrightnessTo(m_DefaultBrightness);
        SetFlareVisible(false);
        SetAmbientColor(1.0, 1.0, 0.3);
        SetDiffuseColor(1.0, 1.0, 0.3);
        SetLifetime(0.15);
        SetDisableShadowsWithinRadius(-1);
        SetCastShadow( false );
    }
}
 
// The dynamic Contaminated area, using it's own default settings
class ContaminatedArea_Dynamic : ContaminatedArea_DynamicBase
{
    protected vector        m_OffsetPos;                // This will be the position at which we spawn all future airborne FX
    protected ref Timer     m_StartupTimer;
    protected ref Timer     m_FXTimer;
    protected FlareLight    m_FlareLight;
    protected ShellLight    m_ShellLight;               // Light used upon ariborne shell detonation
    
    // Constants used for startup events
    const int               AIRBORNE_EXPLOSION_DELAY    = 20;
    const int               AREA_SETUP_DELAY            = 10;
    const float             AIRBORNE_FX_OFFSET          = 50;
    const float             ARTILLERY_SHELL_SPEED       = 100; // Units per second
    
    // Item Spawning upon area creation, the 4 arrays bellow have to have the same amount of elements
    const ref array<string>     SPAWN_ITEM_TYPE         = {"Grenade_ChemGas"};//item classnames
    const ref array<int>        SPAWN_ITEM_COUNT        = {Math.RandomIntInclusive(2,5)};//how many of each type
    const ref array<float>      SPAWN_ITEM_RAD_MIN      = {5};//min distance the item will be spawned from the area position(epicenter)
    const ref array<float>      SPAWN_ITEM_RAD_MAX      = {15};//max distance the item will be spawned from the area position(epicenter)
    
    override void EEOnCECreate()
    {
        // We get the PPE index for future usage and synchronization ( we must do it here for dynamic as it is not read through file )
        m_PPERequesterIdx = GetRequesterIndex(m_PPERequesterType);
        
        // If this is the first initialization, we delay it in order to play cool effects
        if (m_DecayState == eAreaDecayStage.INIT)
        {
            vector areaPos = GetPosition();
            m_OffsetPos = areaPos;
            m_OffsetPos[1] = m_OffsetPos[1] + AIRBORNE_FX_OFFSET;
            vector closestPoint = areaPos;
            
            // play artillery sound, sent to be played for everyone on server
            array<vector> artilleryPoints = GetGame().GetMission().GetWorldData().GetArtyFiringPos();
            int index = 0;
            foreach (int i, vector artilleryPoint : artilleryPoints)
            {
                int dist = 0;
                int temp = vector.DistanceSq(artilleryPoint, areaPos);
                if (temp < dist || dist == 0)
                {
                    dist = temp;
                    index = i;
                }
            }
            
            closestPoint = artilleryPoints.Get(index);
            
            // We calculate the delay depending on distance from firing position to simulate shell travel time
            float delay = vector.Distance(closestPoint, areaPos);
            delay = delay / ARTILLERY_SHELL_SPEED;
            delay += AIRBORNE_EXPLOSION_DELAY; // We add the base, minimum time ( no area can start before this delay )
            
            Param3<vector, vector, float> pos = new Param3<vector, vector, float>(closestPoint, areaPos, delay);
            array<ref Param> params = new array<ref Param>();
            // We send the message with this set of coords
            params.Insert(pos);
            GetGame().RPC(null, ERPCs.RPC_SOUND_ARTILLERY_SINGLE, params, true);
            
            m_FXTimer = new Timer(CALL_CATEGORY_GAMEPLAY);
            m_FXTimer.Run(delay, this, "PlayFX");   
            
            delay += AREA_SETUP_DELAY; // We have an additional delay between shell detonation and finalization of area creation
            // setup zone
            m_StartupTimer = new Timer(CALL_CATEGORY_GAMEPLAY);
            m_StartupTimer.Run(delay, this, "InitZone");
        }
        
        SetSynchDirty();
    }
    
    override void OnVariablesSynchronized()
    {
        super.OnVariablesSynchronized();
 
        switch (m_DecayState)
        {
            case eAreaDecayStage.START:
                PlayExplosionLight();
            break;
        }
    }
 
    override void Tick()
    {
        if ( GetRemainingTime() < GetFinishDecayLifetime() )
        {
            // The second state of decay, further reduction of particle density and size
            SetDecayState( eAreaDecayStage.DECAY_END );
        }
        else if ( GetRemainingTime() < GetStartDecayLifetime() )
        {
            // The first state of decay, slight reduction in particle density and size
            SetDecayState( eAreaDecayStage.DECAY_START );
        }
        
    }
    
    override void SetupZoneData(EffectAreaParams params)
    {
        params.m_ParamName          = string.Format("Dynamic area (%1)", m_Position.ToString());
        params.m_ParamPartId        = ParticleList.CONTAMINATED_AREA_GAS_BIGASS;
        params.m_ParamAroundPartId  = ParticleList.CONTAMINATED_AREA_GAS_AROUND;
        params.m_ParamTinyPartId    = ParticleList.CONTAMINATED_AREA_GAS_TINY;
        params.m_ParamPosHeight     = 7;
        params.m_ParamNegHeight     = 10;
        params.m_ParamRadius        = 120;
        params.m_ParamInnerRings    = 1;
        params.m_ParamInnerSpace    = 40;
        params.m_ParamOuterSpace    = 30;
        params.m_ParamOuterOffset   = 0;
        params.m_ParamTriggerType   = "ContaminatedTrigger_Dynamic";
        
        super.SetupZoneData(params);
    }
    
    override void DeferredInit()
    {
        super.DeferredInit();
 
        // We make sure we have the particle array
        if (!m_ToxicClouds)
            m_ToxicClouds = new array<Particle>();
        
        m_Position = GetPosition();
        m_OffsetPos = m_Position;
        m_OffsetPos[1] = m_OffsetPos[1] + AIRBORNE_FX_OFFSET;
        
        SetupZoneData(new EffectAreaParams);
        
        // If a player arrives slightly later during the creation process we check if playing the flare FX is relevant
        if (m_DecayState == eAreaDecayStage.INIT)
            PlayFlareVFX();
        
        if ( m_DecayState == eAreaDecayStage.LIVE )
            InitZone(); // If it has already been created, we simply do the normal setup, no cool effects, force the LIVE state
        
        super.DeferredInit();
    }
    
    override void InitZoneServer()
    {
        SpawnItems();
 
        super.InitZoneServer();
    }
    
    void SpawnItems()
    {
        //Print("---------============ Spawning items at pos:"+m_Position);
        foreach (int j, string type : SPAWN_ITEM_TYPE)
        {
            //Print("----------------------------------");
            for (int i = 0; i < SPAWN_ITEM_COUNT[j]; ++i)
            {
                vector randomDir2d = vector.RandomDir2D();
                float randomDist = Math.RandomFloatInclusive(SPAWN_ITEM_RAD_MIN[j],SPAWN_ITEM_RAD_MAX[j]);
                vector spawnPos = m_Position + (randomDir2d * randomDist);
                InventoryLocation il = new InventoryLocation();
                vector mat[4];
                Math3D.MatrixIdentity4(mat);
                mat[3] = spawnPos;
                il.SetGround(NULL, mat);
                //Print("Spawning item:"+ type + " at position:" + il.GetPos());
                GetGame().CreateObjectEx(type, il.GetPos(), ECE_PLACE_ON_SURFACE);
            }
        }
    }
    
    override void CreateTrigger(vector pos, int radius)
    {
        super.CreateTrigger(pos, radius);
        
        // This handles the specific case of dynamic triggers as some additionnal parameters are present
        ContaminatedTrigger_Dynamic dynaTrigger = ContaminatedTrigger_Dynamic.Cast( m_Trigger );
        if ( dynaTrigger )
        {
            dynaTrigger.SetLocalEffects( m_AroundParticleID, m_TinyParticleID, m_PPERequesterIdx );
            dynaTrigger.SetAreaState( m_DecayState );
        }
    }
    
    void PlayFX()
    {
        if (GetGame().IsServer())
        {
            Param1<vector> pos = new Param1<vector>(vector.Zero);   // The value to be sent through RPC
            array<ref Param> params = new array<ref Param>();       // The RPC params
            
            // We send the message with this set of coords
            pos.param1 = m_OffsetPos;
            params.Insert(pos);
            GetGame().RPC(null, ERPCs.RPC_SOUND_CONTAMINATION, params, true);
            
            // We go to the next stage
            SetDecayState(eAreaDecayStage.START);
            SetSynchDirty();
        }
    }
    
    void PlayExplosionLight()
    {
        m_ShellLight = ShellLight.Cast( ScriptedLightBase.CreateLight( ShellLight, m_OffsetPos ) );
    }
    
    void PlayFlareVFX()
    {
        if ( GetGame().IsClient() || ( GetGame().IsServer() && !GetGame().IsMultiplayer() ) )
        {
            // We spawn locally the dummy object which will be used to move and manage the particle
            DynamicArea_Flare dummy = DynamicArea_Flare.Cast( GetGame().CreateObjectEx( "DynamicArea_Flare", m_OffsetPos, ECE_SETUP | ECE_LOCAL ) );
            
            // We add some light to reinforce the effect
            m_FlareLight = FlareLightContamination.Cast(ScriptedLightBase.CreateLight( FlareLightContamination, m_OffsetPos ));
        }
    }
}