roadflare.c

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/*
    Author: Boris Vacula
    Description: The flare has 3 burning states during which it uses different particle effects while illumnatingthe environment. After it burns up, it still releases smoke for a while.
    When the flare is dropped while its burning, it is stood up on its stands. This makes the shadows, illumination and particles stand out better.
*/
 
enum RoadflareBurningState
{
    NOT_BURNING,
    INITIAL_BURN,
    MAIN_BURN,
    FINAL_BURN,
    SMOKE_ONLY
};
 
enum RoadflareModelStates
{
    DEFAULT,
    UNCAPPED_UNIGNITED,
    UNCAPPED_IGNITED,
    UNCAPPED_BURNED_OUT
};
 
class Roadflare : ItemBase
{
    // Burning
    static protected const int  INITIAL_BURNING_STATE_TIME = 5;
    static protected const int  FINAL_BURNING_STATE_TIME = 60;
    static protected vector     m_FlameLocalPos = "0 0.285 0";
    private int                 m_BurningState = RoadflareBurningState.NOT_BURNING;
    
    // Light
    RoadflareLight              m_Light;
    
    // Particles
    protected Particle          m_ParInitialFire;
    protected Particle          m_ParMainFire;
    protected Particle          m_ParFinalFire;
    protected Particle          m_ParJustSmoke;
    
    static protected int        PARTICLE_INIT_FIRE      = ParticleList.ROADFLARE_BURNING_INIT;
    static protected int        PARTICLE_MAIN_FIRE      = ParticleList.ROADFLARE_BURNING_MAIN;
    static protected int        PARTICLE_FINAL_FIRE     = ParticleList.ROADFLARE_BURNING_ENDING;
    static protected int        PARTICLE_FINAL_SMOKE    = ParticleList.ROADFLARE_BURNING_SMOKE;
    
    // Sounds
    protected EffectSound           m_BurningSound;
    protected EffectSound           m_IgniteSound;
    static protected const string   BURNING_SOUND       = "roadflareLoop_SoundSet";
    static protected const string   IGNITE_SOUND        = "roadflareTurnOn_SoundSet";
    static protected const int      BURNING_NOISE_RANGE = 30;
    
    // Timers
    ref Timer                   m_FinalSmokeTimer;
    
    // Ignition states
    private int                 m_ModelState = RoadflareModelStates.DEFAULT;
    
    // Selections
    static const string         STANDS_FOLDED           = "Sticks_Flare_Folded";
    static const string         STANDS_UNFOLDED         = "Sticks_Flare_Unfolded";
    static const string         FLARE_CAP               = "Flare_cap";
    static const string         UNIGNITED_TIP           = "Pristine";
    static const string         IGNITED_TIP             = "Burning";
    static const string         EXTINGUISHED_TIP        = "Burned_out";
    
    static const int            SELECTION_Burning       = 0;
    static const int            SELECTION_Burned_out    = 1;
    static const int            SELECTION_Pristine      = 2;
    static const int            SELECTION_All           = 3;
    
    static const string         DEFAULT_TEXTURE         = "dz\\gear\\consumables\\data\\road_flare_co.paa";
    static const string         BURNING_TEXTURE         = "dz\\gear\\consumables\\data\\road_flare_e_co.paa";
    
    static const string         DEFAULT_MATERIAL        = "dz\\gear\\consumables\\data\\road_flare.rvmat";
    static const string         BURNING_MATERIAL        = "dz\\gear\\consumables\\data\\road_flare_on.rvmat";
    
    // Noise
    ref NoiseParams m_NoisePar;
    private float m_NoiseTimer;
 
    void Roadflare()
    {
        RegisterNetSyncVariableInt("m_BurningState");
    }
    
    // Use RoadflareModelStates enum
    void SetModelState(int enum_state)
    {
        m_ModelState = enum_state;
        UpdateModelSelections();
    }
    
    override void EEDelete(EntityAI parent)
    {
        super.EEDelete(parent);
        
        if ( g_Game )
        {
            SEffectManager.DestroyEffect( m_BurningSound ); 
            SEffectManager.DestroyEffect( m_IgniteSound );          
            delete m_FinalSmokeTimer;
        }
        
        DestroyAllParticles();
            
        if (m_Light)
            m_Light.FadeOut(0); 
    }
    
    override void OnStoreSave(ParamsWriteContext ctx)
    {
        super.OnStoreSave(ctx);
        
        ctx.Write( m_ModelState );
    }
    
    override bool OnStoreLoad(ParamsReadContext ctx, int version)
    {
        if ( !super.OnStoreLoad(ctx, version) )
            return false;
        
        int state;
        if ( !ctx.Read(state) )
            state = RoadflareModelStates.DEFAULT;
        
        SetModelState(state);
 
        return true;
    }
    
    void UpdateModelSelections()
    {
        switch (m_ModelState)
        {
            case RoadflareModelStates.DEFAULT:          
                
                ShowSelection(FLARE_CAP);
                ShowSelection(UNIGNITED_TIP);
            
                HideSelection(IGNITED_TIP);
                HideSelection(EXTINGUISHED_TIP);
            
                SetObjectTexture(SELECTION_Pristine, DEFAULT_TEXTURE);
                SetObjectMaterial(SELECTION_Pristine, DEFAULT_MATERIAL);
                
                break;
                
            case RoadflareModelStates.UNCAPPED_UNIGNITED:           
                
                ShowSelection(UNIGNITED_TIP);
                
                HideSelection(FLARE_CAP);
                HideSelection(IGNITED_TIP);
                HideSelection(EXTINGUISHED_TIP);
            
                SetObjectTexture(SELECTION_Pristine, DEFAULT_TEXTURE);
                SetObjectMaterial(SELECTION_Pristine, DEFAULT_MATERIAL);
                
                break;
                
            case RoadflareModelStates.UNCAPPED_IGNITED:
                
                ShowSelection(IGNITED_TIP);
                
                HideSelection(UNIGNITED_TIP);
                HideSelection(FLARE_CAP);
                HideSelection(EXTINGUISHED_TIP);
                
                // No texture/material change here because the model already contains them
                
                break;  
                
            case RoadflareModelStates.UNCAPPED_BURNED_OUT:
                
                ShowSelection(EXTINGUISHED_TIP);
                
                HideSelection(UNIGNITED_TIP);
                HideSelection(FLARE_CAP);
                HideSelection(IGNITED_TIP);
            
                SetObjectTexture(SELECTION_Burned_out, DEFAULT_TEXTURE);
                SetObjectMaterial(SELECTION_Burned_out, DEFAULT_MATERIAL);
            
                break;
        }
    }
    
    // When the flare starts burning
    override void OnWorkStart()
    {
        if ( !g_Game.IsServer()  ||  !g_Game.IsMultiplayer() )
        {
            PlaySoundSetLoop( m_BurningSound, BURNING_SOUND, 0.5, 0 );
            PlaySoundSet( m_IgniteSound, IGNITE_SOUND, 0, 0 );
            
            m_Light = RoadflareLight.Cast(  ScriptedLightBase.CreateLight( RoadflareLight, Vector(0,0,0) )  );
            m_Light.AttachOnMemoryPoint( this, m_Light.m_MemoryPoint );
        }
        
        if ( g_Game.IsServer() )
        {
            /*m_NoisePar = new NoiseParams();
            m_NoisePar.LoadFromPath("cfgVehicles Roadflare NoiseRoadFlare");
            if ( g_Game.GetWorld().IsNight() )
            {
                NoiseSystem noise = g_Game.GetNoiseSystem();
                if ( noise )
                {
                    noise.AddNoisePos( this, GetPosition(), m_NoisePar, NoiseAIEvaluate.GetNoiseReduction(g_Game.GetWeather()) );
                }
            }*/
        }
        
        SetBurningState(RoadflareBurningState.INITIAL_BURN);
        SetModelState( RoadflareModelStates.UNCAPPED_IGNITED );
    }
    
    // Insert RoadflareBurningState enum index as parameter
    void SetBurningState(int state_number)
    {
        m_BurningState = state_number;
    }
    
    // Insert RoadflareBurningState enum index as parameter. Activates server -> client synchronization
    void SetBurningStateSynchronized(int state_number)
    {
        if ( g_Game.IsServer() )
        {
            m_BurningState = state_number;
            SetSynchDirty();
        }
    }
    
    // Every second of the flare burning
    override void OnWork(float consumed_energy)
    {
        if ( g_Game.IsServer() )
        {
            float burning_time = GetCompEM().GetEnergyMax() - GetCompEM().GetEnergy();
            
            // Update burning states
            if (m_BurningState == RoadflareBurningState.INITIAL_BURN)
            {
                if (burning_time >= INITIAL_BURNING_STATE_TIME)
                {
                    SetBurningStateSynchronized(RoadflareBurningState.MAIN_BURN);
                }
            }
            else if ( m_BurningState == RoadflareBurningState.MAIN_BURN )
            {
                /*if ( g_Game.GetWorld().IsNight() )
                {
                    NoiseSystem noise = g_Game.GetNoiseSystem();
                    if ( noise )
                    {
                        noise.AddNoisePos( this, GetPosition(), m_NoisePar, NoiseAIEvaluate.GetNoiseReduction(g_Game.GetWeather()));
                    }
                }*/
                
                if ( burning_time >= GetCompEM().GetEnergyMax() - FINAL_BURNING_STATE_TIME )
                {
                    SetBurningStateSynchronized(RoadflareBurningState.FINAL_BURN);
                }
            }
            
            // Burn containers of this roadflare. This might be removed if lit roadflare can't be put into inventory.
            /*EntityAI container_EAI = GetHierarchyParent();
            
            if ( container_EAI  &&  container_EAI.IsInherited(ItemBase)  &&  !container_EAI.IsInherited(TripwireTrap) )
            {
                ItemBase container_IB = ItemBase.Cast( container_EAI );
                
                int c_size = container_IB.GetItemSize();
                if (c_size == 0)
                    c_size = 1;
                
                container_IB.AddHealth("","",-10/c_size);
            }*/
        }
        
        UpdateActiveParticles();
    }
    
    // When the flare stops burning
    override void OnWorkStop()
    {
        if ( g_Game.IsMissionMainMenu() ) // This is singleplayer main menu so no synchronization here!
        {
            SetBurningState(RoadflareBurningState.NOT_BURNING);
            UpdateActiveParticles();
        }
        else
        {
            if ( g_Game.IsServer() )
            {
                //Safeguard if item is turned off by another event than running out of energy
                if (GetCompEM().GetEnergy() > 0)
                {
                    if (m_Light)
                    {
                        m_Light.FadeOut();
                    }
                    SetBurningState(RoadflareBurningState.NOT_BURNING);
                    return;
                }
                SetBurningStateSynchronized(RoadflareBurningState.SMOKE_ONLY);
                SetHealth("","",0);
            }
            
            UpdateActiveParticles();
            m_FinalSmokeTimer = new Timer( CALL_CATEGORY_SYSTEM );
            m_FinalSmokeTimer.Run(60, this, "StopSmoking", NULL, false);
        }
        
        
        if ( m_BurningSound )
            StopSoundSet( m_BurningSound );
        
        if (m_Light)
            m_Light.FadeOut();
        
        SetModelState( RoadflareModelStates.UNCAPPED_BURNED_OUT );
    }
    
    // Updates all (in)active particles
    void UpdateActiveParticles()
    {
        if ( g_Game.IsDedicatedServer() )
            return;
        
        switch (m_BurningState)
        {
            case RoadflareBurningState.NOT_BURNING:         
                
                DestroyAllParticles();
                break;
                
            case RoadflareBurningState.INITIAL_BURN:            
                
                if (!m_ParInitialFire)
                {
                    DestroyAllParticles();
                    m_ParInitialFire = ParticleManager.GetInstance().PlayOnObject( PARTICLE_INIT_FIRE, this, m_FlameLocalPos);
                    m_ParInitialFire.SetWiggle( 10, 0.3 );
                }
                break;
                
            case RoadflareBurningState.MAIN_BURN:
                
                if (!m_ParMainFire)
                {
                    m_ParMainFire = ParticleManager.GetInstance().PlayOnObject( PARTICLE_MAIN_FIRE, this, m_FlameLocalPos);
                    m_ParMainFire.SetWiggle( 7, 0.3 );
                }
                
                DestroyParticleEx(m_ParInitialFire);
                
                break;  
                
            case RoadflareBurningState.FINAL_BURN:
                
                if (!m_ParFinalFire)
                {
                    DestroyAllParticles();
                    m_ParFinalFire = ParticleManager.GetInstance().PlayOnObject( PARTICLE_FINAL_FIRE, this, m_FlameLocalPos);
                    m_ParFinalFire.SetWiggle( 4, 0.3 );
                }
                break;
                
            case RoadflareBurningState.SMOKE_ONLY:          
                
                if (!m_ParJustSmoke)
                {
                    DestroyAllParticles();
                    m_ParJustSmoke = ParticleManager.GetInstance().PlayOnObject( PARTICLE_FINAL_SMOKE, this, m_FlameLocalPos);
                    m_ParJustSmoke.SetWiggle( 2, 0.3 );
                }
                break;
        }
    }
    
    // Destroys the given particle
    void DestroyParticle( Particle p )
    {
        if (p)
        {
            p.SetWiggle(0,0);
            p.Stop();
        }
    }
    
    void DestroyParticleEx( out Particle p )
    {
        DestroyParticle(p);
        p = null;
    }
    
    // Destroys all particles
    void DestroyAllParticles()
    {
        DestroyParticleEx(m_ParInitialFire);
        DestroyParticleEx(m_ParMainFire);
        DestroyParticleEx(m_ParFinalFire);
        DestroyParticleEx(m_ParJustSmoke);
    }
    
    // Stop releasing final smoke
    void StopSmoking()
    {
        SetBurningStateSynchronized(RoadflareBurningState.NOT_BURNING);
        UpdateActiveParticles();
    }
    
    // Inventory manipulation
    override void OnInventoryExit(Man player)
    {
        super.OnInventoryExit(player);
        
        if (m_BurningState != RoadflareBurningState.NOT_BURNING)
        {
            HideSelection(STANDS_FOLDED);
            ShowSelection(STANDS_UNFOLDED);
            
            if (player)
            {
                vector ori_rotate = player.GetOrientation();
                ori_rotate = ori_rotate + Vector(180, 32, 0);
                SetOrientation(ori_rotate);
            }
        }
    }
    
    override bool CanPutInCargo( EntityAI parent )
    {
        if ( !super.CanPutInCargo(parent) ) 
            return false;
        
        if ( parent && parent.IsInherited( FireplaceBase ) )
            return true;
        
        if ( m_BurningState != RoadflareBurningState.NOT_BURNING )
            return false;
        
        return true;
    }
    
    override void OnInventoryEnter(Man player)
    {
        super.OnInventoryEnter(player);
        
        HideSelection(STANDS_UNFOLDED);
        ShowSelection(STANDS_FOLDED);
    }
    
    override void OnActivatedByItem(notnull ItemBase item)
    {
        if (item.IsInherited(TripwireTrap))
        {
            GetCompEM().SwitchOn();
        }
    }
    
    override bool CanIgniteItem(EntityAI ignite_target = NULL)
    {
        return GetCompEM().IsWorking();
    }
    
    override void OnVariablesSynchronized()
    {
        super.OnVariablesSynchronized();
        
        UpdateActiveParticles();
    }
    
    override void SetActions()
    {
        super.SetActions();
        
        AddAction(ActionAttach);
        AddAction(ActionDetach);
        AddAction(ActionLightItemOnFire);
        AddAction(ActionTurnOnWhileInHands);
    }
};