flaresimulation.c

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class FlareSimulation : Managed
{
    protected Particle          m_ParMainFire;
    protected EffectSound       m_BurningSound;
    protected FlareLight        m_FlareLight;
    const static float          MAX_FARLIGHT_DIST = 40;
    const static float          MIN_FARLIGHT_DIST = 5; 
    
    static ref NoiseParams      m_NoisePar; // Contains the noise data ( template and strength )
    float                       m_LastNoiseTime = -1;
    float                       m_NoiseTimer = 0;
    const float                 NOISE_DELAY = 5; // How much time between two consecutive noise pings
    
    // flare effect rotation
    protected const float       FLARE_SPIN_RATE = 1.15;     // in degrees per simul tick
    protected const float       FLARE_SPIN_RADIUS = 0.18;   // radius of circling motion
    protected Entity            m_Flare;
    protected vector            m_RotationPoint;
    protected vector            m_FlarePosition;
    protected float             m_RotationDegrees;
    
    static protected typename   m_ScriptedLight;
    static protected int        m_ParticleId;
    
    void FlareSimulation()
    {
        m_ScriptedLight  = FlareLight;
        m_ParticleId     = ParticleList.FLAREPROJ_ACTIVATE;
    }
        
    void OnActivation(Entity flare)
    {
        if ( !GetGame().IsServer() || !GetGame().IsMultiplayer() )
        {
            m_FlareLight = FlareLight.Cast( ScriptedLightBase.CreateLight( m_ScriptedLight, Vector(0,0,0) ) );
            if ( m_FlareLight )
                m_FlareLight.AttachOnObject( flare );
            
            if (m_ParMainFire)
                m_ParMainFire.Stop();
 
            m_Flare = flare;
            m_RotationPoint = m_Flare.GetOrigin();
            m_FlarePosition = m_Flare.GetOrigin() + Vector(FLARE_SPIN_RADIUS,0,FLARE_SPIN_RADIUS);
            
            m_ParMainFire = ParticleManager.GetInstance().PlayInWorld( m_ParticleId, m_FlarePosition );
            
            flare.PlaySoundSetLoop( m_BurningSound, "roadflareLoop_SoundSet", 0, 0 );
        }
        
        if ( GetGame().IsServer() )
        {
            // Create and load noise parameters
            m_NoisePar = new NoiseParams();
            m_NoisePar.LoadFromPath("cfgWeapons Flaregun_Base NoiseFlare");
        }
    }
    
    void OnTermination(Entity flare)
    {
        //MiscGameplayFunctions.GenerateAINoiseAtPosition(flare.GetPosition(), NOISE_DELAY, m_NoisePar);
    }
    
    void OnFire( Entity flare)
    {
        //m_ParMainFire = ParticleManager.GetInstance().PlayOnObject( ParticleList.FLAREPROJ_FIRE, flare);
        //m_ParMainFire.SetWiggle( 7, 0.3);
    }
    
    void Simulate( Entity flare )
    {   
        DayZPlayer player = GetGame().GetPlayer();
        if ( player )
            vector playerPos = player.GetPosition();
 
        float dist = vector.DistanceSq(flare.GetPosition(), playerPos);
            
        if ( ( dist <= MAX_FARLIGHT_DIST * MAX_FARLIGHT_DIST ) && ( dist > MIN_FARLIGHT_DIST * MIN_FARLIGHT_DIST ) )
            m_ParMainFire.SetParameter( 0, EmitorParam.SIZE, MiscGameplayFunctions.Normalize(dist, MAX_FARLIGHT_DIST * MAX_FARLIGHT_DIST) );
            
        if ( dist <= MIN_FARLIGHT_DIST * MIN_FARLIGHT_DIST )
            TurnOffDistantLight();
 
        //CastFlareAINoise( flare.GetPosition() );
        FlareParticleUpdate();
    }
    
    // Rotate flare particle and set its new position
    protected void FlareParticleUpdate()
    {
        m_RotationDegrees += FLARE_SPIN_RATE;
        if (m_RotationDegrees > 360)
            m_RotationDegrees = 0;
        
        float angleRad = m_RotationDegrees * Math.DEG2RAD;
        float sin = Math.Sin(angleRad);
        float cos = Math.Cos(angleRad);
        
        vector newFlarePos = m_ParMainFire.GetOrigin();
        float surfacePos = GetGame().SurfaceY(newFlarePos[0], newFlarePos[2]);
        
        if (newFlarePos[1] - surfacePos < 1) // reached ground
        {
            if (m_Flare.GetOrigin()[1] <= surfacePos)   // actual flare pos might not match and height could be underground
                m_ParMainFire.SetPosition(Vector(newFlarePos[0], surfacePos, newFlarePos[2]));
            else 
                m_ParMainFire.SetPosition(Vector(newFlarePos[0], m_Flare.GetOrigin()[1] ,newFlarePos[2]));
            
            return;
        }
 
        // rotate vector around point
        float xRotated = ((m_FlarePosition[0] - m_RotationPoint[0]) * cos) - ((m_FlarePosition[2] - m_RotationPoint[2]) * sin) + m_RotationPoint[0];
        float yRotated = ((m_FlarePosition[0] - m_RotationPoint[0]) * sin) + ((m_FlarePosition[2] - m_RotationPoint[2]) * cos) + m_RotationPoint[2];
        
        newFlarePos[0] = xRotated;
        newFlarePos[1] = m_Flare.GetOrigin()[1];
        newFlarePos[2] = yRotated;
        
        m_ParMainFire.SetPosition(newFlarePos); 
 
    }
    
    void CastFlareAINoise( vector position )
    {
        if ( m_LastNoiseTime < 0 )
            m_LastNoiseTime = GetGame().GetTime() * 0.0033;
 
        float delta_time = GetGame().GetTime() * 0.0033 - m_LastNoiseTime;
        m_LastNoiseTime = GetGame().GetTime() * 0.0033;
        
        m_NoiseTimer += delta_time;
 
        if ( m_NoiseTimer >= NOISE_DELAY )
        {
            MiscGameplayFunctions.GenerateAINoiseAtPosition(position, NOISE_DELAY, m_NoisePar);
        
            m_NoiseTimer = 0;
        }
    }
    
    void TurnOffDistantLight()
    {
        if (m_ParMainFire)
        {
            m_ParMainFire.SetParameter(0, EmitorParam.LIFETIME, 0);
            m_ParMainFire.SetParameter(0, EmitorParam.LIFETIME_RND, 0);
            m_ParMainFire.SetParameter(0, EmitorParam.REPEAT, 0);
            m_ParMainFire.SetParameter(0, EmitorParam.SIZE, 0);
        }
    }
    
    void ~FlareSimulation()
    {
        if (m_ParMainFire)
            m_ParMainFire.Stop();
        
        if (m_BurningSound)
            m_BurningSound.SoundStop();
        
        if (m_FlareLight)
            m_FlareLight.FadeOut();
    }
}
 
class FlareSimulation_Red : FlareSimulation
{
    void FlareSimulation_Red()
    {
        m_ScriptedLight  = FlareLightRed;
        m_ParticleId     = ParticleList.FLAREPROJ_ACTIVATE_RED;
    }
}
 
class FlareSimulation_Green : FlareSimulation
{
    void FlareSimulation_Green()
    {
        m_ScriptedLight  = FlareLightGreen;
        m_ParticleId     = ParticleList.FLAREPROJ_ACTIVATE_GREEN;
    }
}
 
class FlareSimulation_Blue : FlareSimulation
{
    void FlareSimulation_Blue()
    {
        m_ScriptedLight  = FlareLightBlue;
        m_ParticleId     = ParticleList.FLAREPROJ_ACTIVATE_BLUE;
    }
}