private void SetDirection(EffectObject effect, int[] direction)
{
// https://github.com/tloimu/adapt-ffb-joy/blob/master/FeedbackTester/frmMain.cs
Effect param = new Effect();
param.Flags = EffectFlags.Cartesian | EffectFlags.ObjectOffsets;
effect.GetParameters(ref param, EffectParameterFlags.AllParams);
param.SetDirection(direction);
effect.SetParameters(param, EffectParameterFlags.Direction);
}
public void ApplyForce(double x, double y)
{
if (ForceFeedbackSupported)
{
var dd = e.GetDirection();
dd[0] = (int)(x * 100);
dd[1] = (int)(y * 100);
e.SetDirection(dd);
e.Constant.Magnitude = (int)(Math.Sqrt(x * x + y * y) * 10000.0);
eo.SetParameters(e, EffectParameterFlags.Direction);
}
}
private void controlSelect_SelectedIndexChanged(object sender, System.EventArgs e)
{
if(ffActuator != null) ffActuator.Unacquire();
feedbackAmountSlider.Enabled = false;
objectGUIDValue.Enabled = false;
xmlQueryButton.Enabled = false;
foreach(DeviceInstance di in Manager.GetDevices(DeviceClass.All, EnumDevicesFlags.ForceFeeback))
{
if(((string)controlSelect.SelectedItem).CompareTo(di.InstanceName) == 0)
{
ffActuator = new Device(di.InstanceGuid);
if(ffActuator == null)
{
throw new Exception("Cannot instantiate joystick");
}
//set cooperative level.
ffActuator.SetCooperativeLevel(
this,
CooperativeLevelFlags.Exclusive | CooperativeLevelFlags.Background);
//Set axis mode absolute.
ffActuator.Properties.AxisModeAbsolute = true;
//Acquire joystick for capturing.
ffActuator.Acquire();
//Configure axes
foreach(DeviceObjectInstance doi in ffActuator.Objects)
{
//Set axes ranges.
if((doi.ObjectId & (int)DeviceObjectTypeFlags.Axis) != 0)
{
ffActuator.Properties.SetRange(
ParameterHow.ById,
doi.ObjectId,
new InputRange(-5000,5000));
}
int[] temp;
// Get info about first two FF axii on the device
if ((doi.Flags & (int)ObjectInstanceFlags.Actuator) != 0)
{
if (forceAxes != null)
{
temp = new int[forceAxes.Length + 1];
forceAxes.CopyTo(temp,0);
forceAxes = temp;
}
else
{
forceAxes = new int[1];
}
// Store the offset of each axis.
forceAxes[forceAxes.Length - 1] = doi.Offset;
if (forceAxes.Length == 2)
{
break;
}
string path =
@"C:\temp\force.ffe";
EffectList el = null;
el = ffActuator.GetEffects(path,FileEffectsFlags.ModifyIfNeeded);
EffectObject feo = null;
foreach(FileEffect fe in el)
{
constantVibrate = fe.EffectStruct;
feo = new EffectObject(
fe.EffectGuid,
fe.EffectStruct,
ffActuator);
try
{
feo.Download();
}
catch(Exception ex)
{
throw new Exception("Could not download force feedback effect file.", ex);
}
eo = feo;
break;
}
constantVibrate.Constant.Magnitude = 0;
eo.SetParameters(constantVibrate, EffectParameterFlags.TypeSpecificParams);
eo.Download();
eo.Start(1);
feedbackAmountSlider.Enabled = true;
objectGUIDValue.Enabled = true;
xmlQueryButton.Enabled = true;
}
}
break;
}
}
}