grenade_base.c

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enum EGrenadeType
{
    FRAGMENTATION = 0,
    CHEMICAL,
    ILLUMINATING,
    NON_LETHAL
}

class GrenadeLight : ExplosiveLight {}
 
class FlashGrenadeLight : PointLightBase
{
    protected static float m_DefaultBrightness  = 50;
    protected static float m_DefaultRadius      = 20;
    
    void FlashGrenadeLight()
    {
        SetVisibleDuringDaylight(true);
        SetRadiusTo(m_DefaultRadius);
        SetBrightnessTo(m_DefaultBrightness);
        SetFlareVisible(false);
        SetAmbientColor(1.0, 1.0, 1.0);
        SetDiffuseColor(1.0, 1.0, 1.0);
        SetLifetime(0.35);
        SetDisableShadowsWithinRadius(-1);
    }
}
 
class Grenade_Base : ExplosivesBase
{
    protected const float DEFAULT_FUSE_DELAY    = 10;
 
    protected ref Timer     m_FuseTimer;
    protected float         m_FuseDelay;
    protected float         m_RemainingFuseTime;
    
    protected bool          m_Pinned;
    protected bool          m_Pinnable;
    //protected bool        m_Explodable;   //! DEPRECATED; not used anywhere
    
    protected EGrenadeType  m_GrenadeType;
 
    void Pin()
    {
        if (!m_Pinned && m_Pinnable)
        {
            OnPin();
        }
    }
    
    void Unpin()
    {
        if (m_Pinned)
        {
            OnUnpin();
        }
    }       
    
    override void OnActivatedByTripWire();
    
    override void OnActivatedByItem(notnull ItemBase item)
    {
        if (item == this)
        {
            OnActivateFinished();
            return;
        }
 
        Unpin();
    }
    
    bool IsPinned()
    {
        return m_Pinned;
    }
    
    bool IsPinnable()
    {
        if (m_FuseTimer.IsRunning())
        {
            return false;   
        }
        
        return m_Pinnable;
    }
    
    void ActivateImmediate()
    {
        OnActivateImmediate();
    }
    
    void ActivateRandomTime()
    {
        float delay = Math.RandomFloat(1, 20);
        delay *= 1000; 
        g_Game.GetCallQueue(CALL_CATEGORY_GAMEPLAY).CallLater(ActivateImmediate, delay, false);
    }
    
    void SetPinnable(bool state)
    {
        m_Pinnable = state;
    }
    
    void SetFuseDelay(float delay)
    {
        m_FuseDelay = delay;
    }
 
    void SetGrenadeType(EGrenadeType type)
    {
        m_GrenadeType = type;
    }
    
    EGrenadeType GetGrenadeType()
    {
        return m_GrenadeType;
    }
    
    protected void Activate()
    {
        if (!m_FuseTimer.IsRunning())
        {
            if (m_RemainingFuseTime > 0)
            {
                //Debug.Log(string.Format("Grenade activated num of seconds to explosion: %1", m_RemainingFuseTime));
                m_FuseTimer.Run(m_RemainingFuseTime, this, "OnActivateFinished");
            }
            else
            {
                //Debug.Log(string.Format("Grenade activated num of seconds to explosion: %1", m_FuseDelay));
                m_FuseTimer.Run(m_FuseDelay, this, "OnActivateFinished");
            }
 
        }
    }
 
    protected void Deactivate()
    {
        if (m_FuseTimer.IsRunning())
        {
            m_RemainingFuseTime = m_FuseTimer.GetRemaining();
            m_FuseTimer.Stop();
            OnDeactivate();
        }
    }
    
    protected override void InitiateExplosion()
    {
        switch (GetGrenadeType())
        {
            case EGrenadeType.FRAGMENTATION:
            case EGrenadeType.ILLUMINATING:
                for (int i = 0; i < m_AmmoTypes.Count(); i++)
                {
                    Explode(DamageType.EXPLOSION, m_AmmoTypes[i]);
                }
            break;
            case EGrenadeType.CHEMICAL:
            case EGrenadeType.NON_LETHAL:
            break;
        }
        
        OnExplode();    
    }

    protected void ExplodeGrenade(EGrenadeType grenade_type)
    {
        InitiateExplosion();
    }
 
    protected void OnPin()
    {
        m_Pinned = true;
        if (g_Game.IsServer())
        {
            ForceFarBubble(false);
            SetSynchDirty();
        }
 
        Deactivate();
    }
 
    protected void OnUnpin()
    {
        m_Pinned = false;
        if (g_Game.IsServer())
        {
            ForceFarBubble(true);
            SetSynchDirty();
        }
 
        OnActivateStarted();
    }
 
    protected void OnActivateStarted();
    protected void OnActivateFinished()
    {
        if (g_Game.IsServer())
        {
            SetHealth("", "", 0.0); // causes explosion when grenade is destroyed
            SetTakeable(false);
        }
    }
    
    protected void OnActivateImmediate()
    {
        if (g_Game.IsServer())
        {
            SetHealth("", "", 0.0); // causes explosion when grenade is destroyed
            SetTakeable(false);
        }
    }
    
    protected void OnDeactivate();
    
    override void OnStoreSave(ParamsWriteContext ctx)
    {
        super.OnStoreSave(ctx);
        
        if (g_Game.SaveVersion() >= 107)
        {
            ctx.Write(m_Pinned);
        }
    }
    
    override bool OnStoreLoad(ParamsReadContext ctx, int version)
    {
        if (!super.OnStoreLoad(ctx, version))
            return false;
        
        bool pinned;
        if (version >= 107)
        {
            if (!ctx.Read(pinned))
            {
                return false;
            }
            
            m_Pinned = pinned;
        }
 
        return true;
    }
    
    override bool CanBeArmed()
    {
        return false;
    }
    
    override bool CanBeDisarmed()
    {
        return false;
    }
 
    override bool CanExplodeInFire()
    {
        return true;
    }
 
    override void SetActions()
    {
        super.SetActions();
 
        AddAction(ActionUnpin);
        AddAction(ActionPin);
    }
    
    override void EEItemLocationChanged(notnull InventoryLocation oldLoc, notnull InventoryLocation newLoc)
    {
        super.EEItemLocationChanged(oldLoc, newLoc);

        if (newLoc.GetType() != InventoryLocationType.HANDS && !IsPinned())
        {
            Activate();
        }
    }
    
    override void OnWasAttached(EntityAI parent, int slot_id)
    {
        super.OnWasAttached(parent, slot_id);
        
        if (parent.IsAnyInherited({TrapBase,ImprovisedExplosive}))
        {
            Deactivate();
        }
    }
    
    void Grenade_Base()
    {
        m_Pinned            = true;
        m_FuseTimer         = new Timer;
        m_RemainingFuseTime = -1;
 
        SetPinnable(true);
        SetFuseDelay(DEFAULT_FUSE_DELAY);
        SetGrenadeType(EGrenadeType.FRAGMENTATION);
        
        RegisterNetSyncVariableBool("m_Pinned");
    }
    
    override void InitSpecificsExplosionEffectForSurface()
    {
        AddExplosionEffectForSurface("Hit_Snow", ParticleList.EXPLOSION_GRENADE_SNOW);
        AddExplosionEffectForSurface("Hit_Ice", ParticleList.EXPLOSION_GRENADE_ICE);
    }
}