SCR_RadioComponent.c

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enum ERadioCategory
{
    PERSONAL,
    MANPACK
}
 
enum ERadioType
{
    ANPRC68,
    ANPRC77,
    R148,
    R107M
}
 
enum EFreqUnit
{
    KHZ = 0,
    MHZ = 1
}
 
class SCR_RadioProcAnimCtx
{
    int sAnimSignal;
    float fStartVal;
    float fEndVal;
    float fAnimSpeed;
    float fTimeSlice;
    bool bInProgress;
}
 
[EntityEditorProps(category: "GameScripted/Gadgets", description: "Radio gadget", color: "0 0 255 255")]
class SCR_RadioComponentClass : SCR_GadgetComponentClass
{
}
 
class SCR_RadioComponent : SCR_GadgetComponent
{
    [Attribute("0", UIWidgets.ComboBox, "Radio category", "", ParamEnumArray.FromEnum(ERadioCategory), category: "Radio")]
    private int m_iRadioCategory;
 
    [Attribute("0", UIWidgets.ComboBox, "Radio type", "", ParamEnumArray.FromEnum(ERadioType), category: "Radio")]
    private int m_iRadioType;
 
    private bool m_bIsPowered = true;       // radio on/off toggle
    private BaseRadioComponent m_BaseRadioComp;
    private SignalsManagerComponent m_SignalManager;
    
    // signals
    protected bool m_bSignalInit = false;
    protected int m_iSignalPower = -1;
    protected int m_iSignalChannelKhz = -1;
    protected int m_iSignalChannelMhz = -1;
 
    // proc anims
    private ref array<ref SCR_RadioProcAnimCtx> m_aProcAnims = new array<ref SCR_RadioProcAnimCtx>();
    private bool m_bAnimInProgress;
 
    //------------------------------------------------------------------------------------------------
    void RadioToggle()
    {
        m_BaseRadioComp.SetPower( !m_BaseRadioComp.IsPowered() );
        m_bIsPowered = m_BaseRadioComp.IsPowered();
 
        if (m_bIsPowered)
        {
            if ( m_iRadioType == ERadioType.ANPRC68 || ERadioType.ANPRC77 )
                SetKnobAnim(m_iSignalPower, 1, 0.3, false);
        }
        else
        {
            if ( m_iRadioType == ERadioType.ANPRC68 || ERadioType.ANPRC77 )
                SetKnobAnim(m_iSignalPower, 0, 0.3, false);
        }
    }
 
    //------------------------------------------------------------------------------------------------
    bool ChangeFrequencyStep(bool direction)
    {
        if (!m_BaseRadioComp.IsPowered() || m_bAnimInProgress)
            return false;
 
        string strUp = "UP";
        string strDown = "DOWN";
        
        BaseTransceiver tsv = m_BaseRadioComp.GetTransceiver(0);
        if (!tsv)
            return false;
 
        int freq = tsv.GetFrequency();
        int freqMax = tsv.GetMaxFrequency();
        int freqMin = tsv.GetMinFrequency();
 
        if ( ( freq + tsv.GetFrequencyResolution() ) > freqMax && direction)
            return false;
        else if ( ( freq - tsv.GetFrequencyResolution() ) < freqMin && !direction)
            return false;
        else
        {
            if (direction)
                freq += tsv.GetFrequencyResolution();
            else
                freq -= tsv.GetFrequencyResolution();
            
            //FIXME: Do not even try to change frequency without PlayerController
            PlayerController pc = GetGame().GetPlayerController();
            if (pc)
            {
                RadioHandlerComponent rhc = RadioHandlerComponent.Cast(pc.FindComponent(RadioHandlerComponent));
                if (rhc)
                {
                    rhc.SetFrequency(tsv, freq);
                }
            }
 
            float targetAngle;
 
            // proc anims
            if ( m_iRadioType != ERadioType.ANPRC68 )
            {
                targetAngle = GetKnobAngle(EFreqUnit.MHZ);
                SetKnobAnim(m_iSignalChannelMhz, targetAngle, 0.3, true);
            }
 
            targetAngle = GetKnobAngle(EFreqUnit.KHZ);
            SetKnobAnim(m_iSignalChannelKhz, targetAngle, 0.3, false);
        }
 
        return true;
    }
 
    //------------------------------------------------------------------------------------------------
    private float GetKnobAngle(EFreqUnit freqUnit)
    {
        int step, stepsCount;
        int currentStep = 0;
 
        stepsCount = GetKnobAnimStepCount(freqUnit);
        BaseTransceiver tsv = m_BaseRadioComp.GetTransceiver(0);
        if (!tsv)
            return 0.0;
 
        step = (tsv.GetMinFrequency() - tsv.GetFrequency()) * -1;
 
        // Special case of preset number of channels
        if (m_iRadioType == ERadioType.ANPRC68)
        {
            if (step > 0)
                currentStep = step/tsv.GetFrequencyResolution();
        }
        // MHz, looking for the first two digits of a 5 digits frequency, steps are based on models dial
        else if (freqUnit == EFreqUnit.MHZ)
        {
            if (step > 0)
                currentStep = Math.Floor(step/1000);
        }
        // kHz
        else
        {
            if (step >= 1000)
            {
                while (step >= 1000)
                {
                    step -= 1000;
                }
            }
 
            // half steps 050, 150 etc
            if ((step/50) % 2 == 0)
                currentStep = 0;
            else
                currentStep = 1;
 
            step = Math.Floor(step/100);
            currentStep = currentStep + (step * 2); // 20 steps(000 - 100) instead of 10 + possible half step (050)
        }
 
        return currentStep * (360/stepsCount);
 
    }
 
    //------------------------------------------------------------------------------------------------
    // Proc anims
    //------------------------------------------------------------------------------------------------
 
    //------------------------------------------------------------------------------------------------
    private void UpdateKnobState()
    {
        bool state;
 
        if (m_bIsPowered)
            state = 1;
        else
            state = 0;
 
        if (!m_SignalManager)
            return;
        
        if (!m_bSignalInit)
            InitSignals();
        
        m_SignalManager.SetSignalValue( m_iSignalPower, (float)state );
        m_SignalManager.SetSignalValue( m_iSignalChannelKhz, GetKnobAngle(EFreqUnit.KHZ) );
 
        if ( m_iRadioType != ERadioType.ANPRC68 )
            m_SignalManager.SetSignalValue( m_iSignalChannelMhz, GetKnobAngle(EFreqUnit.MHZ) );
    }
 
    //------------------------------------------------------------------------------------------------
    private void SetKnobAnim(int signal, float targetAngle, float speed, bool clumpAnim)
    {
        if (m_bAnimInProgress || !m_SignalManager)
            return;
 
        SCR_RadioProcAnimCtx animCtx = new SCR_RadioProcAnimCtx();
        animCtx.sAnimSignal = signal;
        animCtx.fStartVal = m_SignalManager.GetSignalValue(signal);
        animCtx.fEndVal = targetAngle;
        animCtx.fAnimSpeed = speed;
        animCtx.fTimeSlice = 0;
        animCtx.bInProgress = true;
 
        m_aProcAnims.Insert(animCtx);
 
        if (!clumpAnim)
        {
            m_bAnimInProgress = true;
            ActivateGadgetUpdate();
        }
    }
 
    //------------------------------------------------------------------------------------------------
    private void AnimKnob(float timeSlice)
    {
        int inProgress;
 
        for ( int i = 0; i < m_aProcAnims.Count(); i++ )
        {
            SCR_RadioProcAnimCtx animCtx = m_aProcAnims[i];
            if (!animCtx)
                continue;
 
            if (animCtx.bInProgress)
                inProgress++;
 
            float newAngle;
            animCtx.fTimeSlice += timeSlice / animCtx.fAnimSpeed;
 
            // if ended
            if ( animCtx.fTimeSlice >= 1 )
            {
                animCtx.bInProgress = false;
                newAngle = animCtx.fEndVal;
            }
            else
            {
                // Turn counter clockwise if closer
                if ( Math.AbsFloat(animCtx.fStartVal - animCtx.fEndVal) > 180 )
                {
                    if ( animCtx.fStartVal < 0)
                        animCtx.fStartVal += 360;
                    else
                        animCtx.fStartVal -= 360;
                }
 
                float lerp = Math.Lerp(animCtx.fStartVal, animCtx.fEndVal, animCtx.fTimeSlice);
                newAngle = lerp;
            }
 
            m_SignalManager.SetSignalValue(animCtx.sAnimSignal, newAngle);
        }
 
        if (inProgress <= 0)
        {
            m_bAnimInProgress = false;
            m_aProcAnims.Clear();
            DeactivateGadgetUpdate();
        }
    }
 
    //------------------------------------------------------------------------------------------------
    private int GetKnobAnimStepCount(EFreqUnit freqUnit)
    {
        if ( m_iRadioType == ERadioType.ANPRC68 )
        {
            return 10;
        }
        else if ( m_iRadioType == ERadioType.R148 )
        {
            if (freqUnit == EFreqUnit.MHZ)
                return 15;
            else
                return 20;
        }
        else if ( m_iRadioType == ERadioType.ANPRC77 )
        {
            if (freqUnit == EFreqUnit.MHZ)
                return 24; // 22 + 1 empty & +1 duplicated
            else
                return 24; // 20 +4 empty ones
        }
 
        return 1;
    }
    
    //------------------------------------------------------------------------------------------------
    protected void InitSignals()
    {
        // cache signals
        m_iSignalPower = m_SignalManager.FindSignal("Power");
        m_iSignalChannelKhz = m_SignalManager.FindSignal("Channel_k");
        m_iSignalChannelMhz = m_SignalManager.FindSignal("CHannel_M");
        
        if (m_iSignalPower != -1 && m_iSignalChannelKhz != -1 && m_iSignalChannelMhz != -1)
            m_bSignalInit = true;
    }
 
    //------------------------------------------------------------------------------------------------
    // Overrides
    //------------------------------------------------------------------------------------------------
 
    //------------------------------------------------------------------------------------------------
    override void ModeSwitch(EGadgetMode mode, IEntity charOwner)
    {       
        super.ModeSwitch(mode, charOwner);
 
        // Update knobs
        UpdateKnobState();
    }
    
    //------------------------------------------------------------------------------------------------
    override void ActivateGadgetUpdate()
    {
        super.ActivateGadgetUpdate();
        
        InventoryItemComponent itemComponent = InventoryItemComponent.Cast(GetOwner().FindComponent(InventoryItemComponent));
        if (itemComponent)
            itemComponent.ActivateOwner(true);  // required for the procedural animations to function
    }
    
    //------------------------------------------------------------------------------------------------
    override void DeactivateGadgetUpdate()
    {
        super.DeactivateGadgetUpdate();
        
        InventoryItemComponent itemComponent = InventoryItemComponent.Cast(GetOwner().FindComponent(InventoryItemComponent));
        if (itemComponent)
            itemComponent.ActivateOwner(false);
    }
    
    //------------------------------------------------------------------------------------------------
    override void UpdateVisibility(EGadgetMode mode)
    {
        if (m_iRadioCategory != ERadioCategory.MANPACK) // let radio backpack visibility be handled by inventory
            super.UpdateVisibility(mode);
    }
    
    //------------------------------------------------------------------------------------------------
    override EGadgetType GetType()
    {
        if (m_iRadioCategory == ERadioCategory.MANPACK)
            return EGadgetType.RADIO_BACKPACK;
        else
            return EGadgetType.RADIO;
    }
    
    //------------------------------------------------------------------------------------------------
    override bool CanBeHeld()
    {
        return true;
    }
    
    //------------------------------------------------------------------------------------------------
    override bool IsVisibleEquipped()
    {
        if (m_iRadioCategory == ERadioCategory.MANPACK)
            return true;
        else
            return false;
    }
 
    //------------------------------------------------------------------------------------------------
    BaseRadioComponent GetRadioComponent()
    {
        return m_BaseRadioComp;
    }   
    
    //------------------------------------------------------------------------------------------------
    override void Update(float timeSlice)
    {
        // knob anim
        if (!m_bAnimInProgress)
        {
            DeactivateGadgetUpdate();
            return;
        }
        
        AnimKnob(timeSlice);
    }
 
    //------------------------------------------------------------------------------------------------
    override void OnPostInit(IEntity owner)
    {
        super.OnPostInit(owner);
 
        // BaseRadioComponent
        m_BaseRadioComp =  BaseRadioComponent.Cast(owner.FindComponent(BaseRadioComponent));
        if (!m_BaseRadioComp)
            Print("SCR_RadioEntity: Failed acquiring BaseRadioComponent", LogLevel.WARNING);
 
        // signal manager
        m_SignalManager = SignalsManagerComponent.Cast(owner.FindComponent( SignalsManagerComponent ) );
    }
}