internal void OnCanvasTouchStart(int id, float x, float y)
{
if (_activeTouchpoints.ContainsKey(id))
{
throw new InvalidOperationException($"HTML Touch id {id} is already tracked. Cannot track another touchpoint using this id.");
}
var inx = NextFreeTouchIndex;
if (inx < 0)
{
return;
}
_activeTouchpoints[id] = inx;
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs {
Button = _tpButtonDescs[(int)TouchPoints.Touchpoint_0 + inx].ButtonDesc, Pressed = true
});
AxisValueChanged?.Invoke(this, new AxisValueChangedArgs {
Axis = _tpAxisDescs[(int)TouchAxes.Touchpoint_0_X + 2 * inx].AxisDesc, Value = x
});
AxisValueChanged?.Invoke(this, new AxisValueChangedArgs {
Axis = _tpAxisDescs[(int)TouchAxes.Touchpoint_0_Y + 2 * inx].AxisDesc, Value = y
});
}
internal void OnCanvasMouseUp(int button)
{
MouseButtons mb;
switch (button)
{
case 0:
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs
{
Button = _btnLeftDesc.ButtonDesc,
Pressed = false
});
break;
case 1:
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs
{
Button = _btnMiddleDesc.ButtonDesc,
Pressed = false
});
break;
case 2:
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs
{
Button = _btnRightDesc.ButtonDesc,
Pressed = false
});
break;
}
}
internal void OnViewTouchEnd(int id, float x, float y)
{
// Diagnostics.Log($"TouchEnd {id}");
int inx;
if (!_activeTouchpoints.TryGetValue(id, out inx))
{
return;
}
AxisValueChanged?.Invoke(this,
new AxisValueChangedArgs
{
Axis = _tpAxisDescs[(int)TouchAxes.Touchpoint_0_X + 2 * inx].AxisDesc,
Value = x
});
AxisValueChanged?.Invoke(this,
new AxisValueChangedArgs
{
Axis = _tpAxisDescs[(int)TouchAxes.Touchpoint_0_Y + 2 * inx].AxisDesc,
Value = y
});
ButtonValueChanged?.Invoke(this,
new ButtonValueChangedArgs
{
Button = _tpButtonDescs[(int)TouchPoints.Touchpoint_0 + inx].ButtonDesc,
Pressed = false
});
_activeTouchpoints.Remove(id);
}
private void ButtonValueChange(GpioPin gpioPin, EncoderRotaryEventArgs encoderEventArgs)
{
if (ButtonValueChanged != null)
{
ButtonValueChanged.Invoke(gpioPin, encoderEventArgs);
}
}
private void OnCanvasKeyUp(int key)
{
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs
{
Button = _keyDescriptions[key],
Pressed = false
});
}
internal void OnCanvasTouchCancel(int id, float x, float y)
{
int inx;
if (!_activeTouchpoints.TryGetValue(id, out inx))
{
return;
}
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs {
Button = _tpButtonDescs[(int)TouchPoints.Touchpoint_0 + inx].ButtonDesc, Pressed = false
});
_activeTouchpoints.Remove(id);
}
internal void PreRender()
{
if (Time.DeltaTime != 0)
{
// Calculate derived axes first.
foreach (var derivedAxis in _calculatedAxes) //.OrderBy(a => a.Key))
{
derivedAxis.Value.CurrentAxisValue = derivedAxis.Value.Calculator(Time.DeltaTime);
}
}
// See if any listeners need to be triggered about changes on axes.
if (AxisValueChanged != null)
{
foreach (var axisId in _axesToPoll.Keys.ToArray()) // ToArray: get the list up-front because we will change the _axesToPoll dictionary during iteration
{
float curVal;
if (!TryGetPolledAxis(axisId, out curVal))
{
throw new InvalidOperationException($"Invalid axis Id {axisId} - should be polled or derived.");
}
if (_axesToPoll[axisId] != curVal)
{
AxisValueChanged(this, new AxisValueChangedArgs {
Axis = _axes[axisId], Value = curVal
});
_axesToPoll[axisId] = curVal;
}
}
}
// Do this for all polled buttons no matter if a listener is registered to maintain IsKeyDown/IsKeyUp funtionality
foreach (var buttonId in _buttonsToPoll.Keys.ToArray()) // ToArray: get the list up-front because we will change the _buttonsToPoll dictionary during iteration
{
var curVal = _inpDevImp.GetButton(buttonId);
if (_buttonsToPoll[buttonId] != curVal)
{
if (curVal)
{
_buttonsDown.Add(buttonId);
}
else
{
_buttonsUp.Add(buttonId);
}
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs {
Button = _buttons[buttonId], Pressed = curVal
});
_buttonsToPoll[buttonId] = curVal;
}
}
// Now handle to-be-listened-to buttons that fired during the last frame until just now.
foreach (var b in _buttonsToListenJustChanged)
{
if (b.Value != _buttonsToListen[b.Key])
{
if (b.Value)
{
_buttonsDown.Add(b.Key);
}
else
{
_buttonsUp.Add(b.Key);
}
}
_buttonsToListen[b.Key] = b.Value;
ButtonValueChanged?.Invoke(this, new ButtonValueChangedArgs {
Button = _buttons[b.Key], Pressed = b.Value
});
}
_buttonsToListenJustChanged.Clear();
}
