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Use float math for polar<=>rect if either range is outside -128..127 

also set the max of the polar magnitude NUD to the actual measured maximum
This commit is contained in:
YoshiRulz 2020-08-16 17:47:35 +10:00
parent 08c234dcf2
commit e8bc7d50dd
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GPG Key ID: C4DE31C245353FB7
1 changed files with 45 additions and 10 deletions
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55
src/BizHawk.Client.EmuHawk/tools/VirtualPads/controls/VirtualPadAnalogStick.cs
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@ -20,6 +20,10 @@ namespace BizHawk.Client.EmuHawk
private bool _updatingFromXY;
private readonly Func<int, int, (short X, short Y)> PolarToRectHelper;
private readonly Func<int, int, (uint R, uint Θ)> RectToPolarHelper;
public VirtualPadAnalogStick(
InputManager inputManager,
string name,
@ -31,9 +35,47 @@ namespace BizHawk.Client.EmuHawk
Name = name;
RangeX = rangeX;
RangeY = rangeY;
if (RangeX.Min >= -128 && RangeX.Max <= 127 && RangeY.Min >= -128 && RangeY.Max <= 127)
{
// LUT
//TODO ditch this on move to .NET Core
PolarToRectHelper = (r, θ) =>
{
var (x, y) = PolarRectConversion.PolarToRectLookup((ushort) r, (ushort) θ);
var x1 = (RangeX.IsReversed ? RangeX.Mid - x : RangeX.Mid + x).ConstrainWithin(RangeX.Range);
var y1 = (RangeY.IsReversed ? RangeY.Mid - y : RangeY.Mid + y).ConstrainWithin(RangeY.Range);
return ((short) x1, (short) y1);
};
RectToPolarHelper = (x, y) => PolarRectConversion.RectToPolarLookup(
(sbyte) (RangeX.IsReversed ? RangeX.Mid - x : x - RangeX.Mid),
(sbyte) (RangeY.IsReversed ? RangeY.Mid - y : y - RangeY.Mid)
);
}
else
{
// float math
const double DEG_TO_RAD_FACTOR = Math.PI / 180;
const double RAD_TO_DEG_FACTOR = 180 / Math.PI;
PolarToRectHelper = (r, θ) =>
{
var x = (short) (r * Math.Cos(θ * DEG_TO_RAD_FACTOR));
var y = (short) (r * Math.Sin(θ * DEG_TO_RAD_FACTOR));
var x1 = (RangeX.IsReversed ? RangeX.Mid - x : RangeX.Mid + x).ConstrainWithin(RangeX.Range);
var y1 = (RangeY.IsReversed ? RangeY.Mid - y : RangeY.Mid + y).ConstrainWithin(RangeY.Range);
return ((short) x1, (short) y1);
};
RectToPolarHelper = (x, y) =>
{
double x1 = RangeX.IsReversed ? RangeX.Mid - x : x - RangeX.Mid;
double y1 = RangeY.IsReversed ? RangeY.Mid - y : y - RangeY.Mid;
var θ = Math.Atan2(y1, x1) * RAD_TO_DEG_FACTOR;
return ((uint) Math.Sqrt(x1 * x1 + y1 * y1), (uint) (θ < 0 ? 360.0 + θ : θ));
};
}
InitializeComponent();
AnalogStick.ClearCallback = ClearCallback;
manualR.Maximum = Math.Max(RectToPolarHelper(RangeX.Max, RangeY.Max).R, RectToPolarHelper(RangeX.Min, RangeY.Min).R);
ManualX.ValueChanged += ManualXY_ValueChanged;
ManualY.ValueChanged += ManualXY_ValueChanged;
@ -137,11 +179,6 @@ namespace BizHawk.Client.EmuHawk
public void SetPrevious(IController previous) => AnalogStick.SetPrevious(previous);
private (ushort R, ushort Θ) RectToPolarHelper(int x, int y) => PolarRectConversion.RectToPolarLookup(
(sbyte) (RangeX.IsReversed ? RangeX.Mid - x : x - RangeX.Mid),
(sbyte) (RangeY.IsReversed ? RangeY.Mid - y : y - RangeY.Mid)
);
private void ManualXY_ValueChanged(object sender, EventArgs e)
{
if (_updatingFromAnalog || _updatingFromPolar) return;
@ -164,11 +201,9 @@ namespace BizHawk.Client.EmuHawk
if (_updatingFromAnalog || _updatingFromXY) return;
_updatingFromPolar = true;
var (x, y) = PolarRectConversion.PolarToRectLookup((ushort) manualR.Value, (ushort) manualTheta.Value);
var x1 = (RangeX.IsReversed ? RangeX.Mid - x : RangeX.Mid + x).ConstrainWithin(RangeX.Range);
var y1 = (RangeY.IsReversed ? RangeY.Mid - y : RangeY.Mid + y).ConstrainWithin(RangeY.Range);
SetAnalog(x1, y1);
SetXY(x1, y1);
var (x, y) = PolarToRectHelper((int) manualR.Value, (int) manualTheta.Value);
SetAnalog(x, y);
SetXY(x, y);
_updatingFromPolar = false;
}