SCR_AnalogGaugeNonLinear.c

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// Default signal based analog gauge, needle movement clamped by Min and Max values, supports 1 needle - standard size
class SCR_AnalogGaugeNonLinear : SCR_BaseAnalogGauge
{   
    // Attributes: values definition
    [Attribute("0 10 30 60 120", UIWidgets.EditBox, "Direct definition of values to be displayed on the gauge; float values separated by space")]
    protected string  m_sValues;
 
    
    // Attributes: labels
    [Attribute("2", UIWidgets.SpinBox, "Section subdivisions on gauge ring", "1 10 1")]
    protected int m_iSectionSubdivisions;
 
    [Attribute("1", UIWidgets.SpinBox, "Label on gauge ring every N-sections (e.g. if 1 every section is labeled)", "1 10 1")]
    protected int m_iLabelEveryNthSection;
 
        
    // Attributes: signal
    [Attribute("speed", UIWidgets.EditBox, "Name of the signal to listen to.")]
    protected string  m_sSignalName;
 
    
    // Attributes: custom data
    [Attribute("", UIWidgets.EditBox, "Gauge overlay texture.")]
    protected string m_sOverlay;    
 
    [Attribute("", UIWidgets.EditBox, "Gauge custom needle texture. If not selected, default is used.")]
    protected string m_sCustomNeedle;   
    
    protected SignalsManagerComponent m_SignalsManagerComponent;
    protected int m_iSignalIndex = -1;
 
    protected float m_fValueMin, m_fValueMax, m_fValueRange;
    protected ref array<float> m_aValues = new array<float>();
    
    //------------------------------------------------------------------------------------------------
    override SCR_BaseAnalogGaugeData GetGaugeData()
    {
        SCR_BaseAnalogGaugeData data = new SCR_BaseAnalogGaugeData();
 
        // Custom attributes
        data.m_sOverlay = m_sOverlay;
        data.m_sCustomNeedle = m_sCustomNeedle;
 
        return data;
    }
 
    //------------------------------------------------------------------------------------------------
    override void InitGauge(IEntity owner, out bool bSuccess)
    {
        // Parse and validate value data from the editbox input     
        array<string> aValueStrings = new array<string>();
        m_sValues.Split(" ", aValueStrings, true);
        
        float fValue;
        int iValues = 0;
        
        foreach (string sValue : aValueStrings)
        {
            fValue = sValue.ToFloat();
            
            if (iValues == 0 || fValue > m_fValueMax)
            {
                if (iValues == 0)
                    m_fValueMin = fValue;
 
                iValues++;                  
                
                m_aValues.Insert(fValue);
                m_fValueMax = fValue;   
            }
        }
        
        // Need at least 2 values (min & max)
        if (iValues < 2)
        {
            bSuccess = false;
            return;
        }
    
        // Get gauge value range
        m_fValueRange = m_fValueMax - m_fValueMin;  
 
        if (m_fValueRange <= 0)
        {
            bSuccess = false;
            return;
        }   
    }
    
    //------------------------------------------------------------------------------------------------
    override void DestroyGauge()
    {
        m_aValues.Clear();
        
        super.DestroyGauge();
    }       
        
    //------------------------------------------------------------------------------------------------
    override bool CreateGaugeRing(IEntity owner)
    {
        bool bSuccess = super.CreateGaugeRing(owner);
        
        if (!bSuccess)
            return false;
        
        int sections = m_aValues.Count() - 1;
                
        WorkspaceWidget workspace = GetGame().GetWorkspace();
        
        int steps = sections * m_iSectionSubdivisions;
        float markAngle = m_fWidgetRange / steps;
        float angle, value;
        int index;
 
        string texture;     
 
        for (int i = 0; i <= steps; i++)
        {
            angle = m_fZeroValueRotation + (i * markAngle);
            
            // Add marks on the gauge ring
            if (i % m_iSectionSubdivisions == 0)
                texture = m_pGaugeData.m_sRingMarkSection;
            else
                texture = m_pGaugeData.m_sRingMarkSubsection;
            
            CreateRingMark(workspace, angle, texture);
            
            if (i == 0 && !m_bShowLabelMin)
                continue;
 
            if (i == steps && !m_bShowLabelMax)
                continue;           
 
            // Add labels to section marks
            if (i % (m_iSectionSubdivisions * m_iLabelEveryNthSection) == 0)
            {
                index = i / m_iSectionSubdivisions;
                value = m_aValues[index];
        
                CreateRingLabel(workspace, angle, value, m_bAbsLabelValues, m_fLabelValueMultiplier, m_iLabelValuePrecision);
            }
        }   
        
        return true;
    }
    
    //------------------------------------------------------------------------------------------------
    override float GetValue()
    {
        if (!m_SignalsManagerComponent)
            return 0;
 
        if (m_iSignalIndex == -1)
            return 0;       
                
        float value = m_SignalsManagerComponent.GetSignalValue(m_iSignalIndex);
        
        return value;
    }   
    
    //------------------------------------------------------------------------------------------------
    override float GetValuePerc(float value)
    {
        if (m_fValueRange == 0)
            return 0;
        
        // Get segment value is in
        float fMin, fMax;
        int iSegments = m_aValues.Count() - 1;
        
        if (iSegments <= 0)
            return 0;
        
        float fValuePerc = -1;
        float fSegmentSize = 1 / iSegments;
        
        for (int i = 0; i < iSegments; i++)
        {
            if (fValuePerc > -1)
                continue;
            
            fMin = m_aValues[i];
            fMax = m_aValues[i + 1];
        
            if (value < fMax)
            {
                fValuePerc = i * fSegmentSize;  // percentage based on segment
                fValuePerc += fSegmentSize * (value - fMin) / (fMax - fMin);  // percentage based on progress within segment
            }
        }
 
        return fValuePerc;
    }       
 
    //------------------------------------------------------------------------------------------------
    override event void DisplayStartDraw(IEntity owner) 
    {
        if (!m_SignalsManagerComponent)
            return;
        
        m_iSignalIndex = m_SignalsManagerComponent.FindSignal(m_sSignalName);
 
        super.DisplayStartDraw(owner);
    }       
 
    //------------------------------------------------------------------------------------------------
    override event void DisplayInit(IEntity owner)
    {
        super.DisplayInit(owner);
        
        GenericEntity genericEntity = GenericEntity.Cast(owner);
 
        if (!genericEntity)
            return;
 
        m_SignalsManagerComponent = SignalsManagerComponent.Cast(genericEntity.FindComponent(SignalsManagerComponent));
    }
};