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using grapher.Models.Serialized;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
namespace grapher.Models.Calculations
{
public class AccelCalculator
{
#region Structs
public struct MagnitudeData
{
public double magnitude;
public int x;
public int y;
}
#endregion Structs
#region Constructors
public AccelCalculator(Field dpi, Field pollRate)
{
DPI = dpi;
PollRate = pollRate;
}
#endregion Constructors
#region Properties
public ReadOnlyCollection<MagnitudeData> MagnitudesCombined { get; private set; }
public ReadOnlyCollection<MagnitudeData> MagnitudesX { get; private set; }
public ReadOnlyCollection<MagnitudeData> MagnitudesY { get; private set; }
public Field DPI { get; private set; }
public Field PollRate { get; private set; }
private double CombinedMaxVelocity { get; set; }
private double XYMaxVelocity { get; set; }
private int Increment { get; set; }
private double MeasurementTime { get; set; }
#endregion Fields
#region Methods
public void Calculate(AccelData data, ManagedAccel accel, DriverSettings settings)
{
ScaleByMouseSettings();
data.Clear();
Calculate(data.Combined, accel, settings.sensitivity.x, MagnitudesCombined);
Calculate(data.X, accel, settings.sensitivity.x, MagnitudesX);
Calculate(data.Y, accel, settings.sensitivity.y, MagnitudesY);
}
public void Calculate(AccelChartData data, ManagedAccel accel, double starter, ICollection<MagnitudeData> magnitudeData)
{
double lastInputMagnitude = 0;
double lastOutputMagnitude = 0;
foreach (var magnitudeDatum in magnitudeData)
{
var output = accel.Accelerate(magnitudeDatum.x, magnitudeDatum.y, MeasurementTime);
var outMagnitude = Magnitude(output.Item1, output.Item2);
var ratio = magnitudeDatum.magnitude > 0 ? outMagnitude / magnitudeDatum.magnitude : starter;
var inDiff = magnitudeDatum.magnitude - lastInputMagnitude;
var outDiff = outMagnitude - lastOutputMagnitude;
var slope = inDiff > 0 ? outDiff / inDiff : starter;
if (!data.AccelPoints.ContainsKey(magnitudeDatum.magnitude))
{
data.AccelPoints.Add(magnitudeDatum.magnitude, ratio);
}
if (!data.VelocityPoints.ContainsKey(magnitudeDatum.magnitude))
{
data.VelocityPoints.Add(magnitudeDatum.magnitude, outMagnitude);
}
if (!data.GainPoints.ContainsKey(magnitudeDatum.magnitude))
{
data.GainPoints.Add(magnitudeDatum.magnitude, slope);
}
lastInputMagnitude = magnitudeDatum.magnitude;
lastOutputMagnitude = outMagnitude;
}
data.OrderedVelocityPointsList.AddRange(data.VelocityPoints.Values.ToList());
}
public ReadOnlyCollection<MagnitudeData> GetMagnitudes()
{
var magnitudes = new List<MagnitudeData>();
for (int i = 0; i < CombinedMaxVelocity; i+=Increment)
{
for (int j = 0; j <= i; j+=Increment)
{
MagnitudeData magnitudeData;
magnitudeData.magnitude = Magnitude(i, j);
magnitudeData.x = i;
magnitudeData.y = j;
magnitudes.Add(magnitudeData);
}
}
magnitudes.Sort((m1, m2) => m1.magnitude.CompareTo(m2.magnitude));
return magnitudes.AsReadOnly();
}
public ReadOnlyCollection<MagnitudeData> GetMagnitudesX()
{
var magnitudes = new List<MagnitudeData>();
for (int i = 0; i < XYMaxVelocity; i+=Increment)
{
MagnitudeData magnitudeData;
magnitudeData.magnitude = i;
magnitudeData.x = i;
magnitudeData.y = 0;
magnitudes.Add(magnitudeData);
}
return magnitudes.AsReadOnly();
}
public ReadOnlyCollection<MagnitudeData> GetMagnitudesY()
{
var magnitudes = new List<MagnitudeData>();
for (int i = 0; i < XYMaxVelocity; i+=Increment)
{
MagnitudeData magnitudeData;
magnitudeData.magnitude = i;
magnitudeData.x = 0;
magnitudeData.y = i;
magnitudes.Add(magnitudeData);
}
return magnitudes.AsReadOnly();
}
public static double Magnitude(int x, int y)
{
return Math.Sqrt(x * x + y * y);
}
public static double Magnitude(double x, double y)
{
return Math.Sqrt(x * x + y * y);
}
public static double Velocity(int x, int y, double time)
{
return Magnitude(x, y) / time;
}
public static double Velocity(double x, double y, double time)
{
return Magnitude(x, y) / time;
}
public void ScaleByMouseSettings()
{
var dpiPollFactor = DPI.Data / PollRate.Data;
CombinedMaxVelocity = dpiPollFactor * Constants.MaxMultiplier;
var ratio = CombinedMaxVelocity / Constants.Resolution;
Increment = ratio > 1 ? (int) Math.Floor(ratio) : 1;
MeasurementTime = Increment == 1 ? 1 / ratio : 1;
XYMaxVelocity = CombinedMaxVelocity * Constants.XYToCombinedRatio;
MagnitudesCombined = GetMagnitudes();
MagnitudesX = GetMagnitudesX();
MagnitudesY = GetMagnitudesY();
}
#endregion Methods
}
}
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