raycaster.c

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// Item for raycast debugging. It's also fun to play around with at night.
 
class Raycaster extends ItemBase
{
    protected ref Timer     m_Timer;
    
    override void OnWorkStart()
    {
        if ( !g_Game.IsServer()  ||  !g_Game.IsMultiplayer() ) // Client side
        {
            StartPeriodicMeasurement();
        }
    }
    
    void StartPeriodicMeasurement()
    {
        if( !m_Timer )
        {
            m_Timer = new Timer;
        }
        
        m_Timer.Run( 0.01, this, "PrepareMeasurement", null, true );
    }
    
    void PrepareMeasurement()
    {
        DoMeasurement();
        DoMeasurement();
    }
    
    void DoMeasurement()
    {
        float dispersion = 80;
        
        vector      from            = GetPosition() + ( GetMemoryPointPos("beamStart") + ((GetOrientation()+Vector(90,0,0)).AnglesToVector()*0.3) );
        vector      ori             = GetOrientation() + Vector(90,0,0) + Vector(dispersion/2 - Math.RandomFloat(0, dispersion)  ,  dispersion/2 - Math.RandomFloat(0, dispersion)  ,  dispersion/2 - Math.RandomFloat(0, dispersion)  );
        vector      to              = from + (ori.AnglesToVector() )* 30;
        vector      contact_pos;
        vector      contact_dir;
        int         contactComponent;
        
        bool is_collision = DayZPhysics.RaycastRV( from, to, contact_pos, contact_dir, contactComponent, NULL , NULL, GetHierarchyRootPlayer(), false, false, ObjIntersectIFire);
        
        if (is_collision)
        {
            vector hit_normal = contact_dir.VectorToAngles();
            hit_normal[1] = hit_normal[1] + 90;
            
            // Generate result
            Particle p = ParticleManager.GetInstance().PlayInWorld(ParticleList.DEBUG_DOT, contact_pos);
            p.SetOrientation(hit_normal);
        }
    }
    
    void StopPeriodicMeasurement()
    {
        if( m_Timer )
        {
            m_Timer.Stop();
        }
    }
 
    override void OnWorkStop()
    {
        if ( !g_Game.IsServer()  ||  !g_Game.IsMultiplayer() ) // Client side
        {
            StopPeriodicMeasurement();
        }
    }
    
    override void SetActions()
    {
        super.SetActions();
        
        AddAction(ActionTurnOnWhileInHands);
        AddAction(ActionTurnOffWhileInHands);
    }
}