private void UpdateDrag(Entity mouseHit, ref InputSystemState state)
{
for (int i = 0; i < ButtonStates.Length; i++)
{
var buttonState = ButtonStates[(int)i];
if (buttonState.Pressed && buttonState.PressEntity != default)
{
var dragDelta = PointerFrameData[0].Position - buttonState.PressPosition;
var dragLength = math.length(dragDelta);
if (!buttonState.IsDragging)
{
if (dragLength > DragThreshold)
{
buttonState.IsDragging = true;
CreateEvent(buttonState.PressEntity, PointerEventType.BeginDrag, true, (PointerButton)i);
}
}
else if (dragLength > 0.0f)
{
CreateEvent(buttonState.PressEntity, PointerEventType.Drag, true, (PointerButton)i);
}
}
ButtonStates[(int)i] = buttonState;
}
}
private void HandleButtonDown(Entity mouseHit, ref InputSystemState state, PointerButton button)
{
var buttonState = ButtonStates[(int)button];
buttonState.Pressed = true;
buttonState.PressPosition = PointerFrameData[0].Position;
buttonState.PressEntity = mouseHit;
if (button == PointerButton.Left)
{
if (mouseHit != state.SelectedEntity)
{
//TODO: Selection event
if (state.SelectedEntity != default)
{
CreateEvent(state.SelectedEntity, PointerEventType.Deselected, true, PointerButton.Left);
}
if (mouseHit != default)
{
CreateEvent(mouseHit, PointerEventType.Selected, true, PointerButton.Left);
}
state.SelectedEntity = mouseHit;
}
}
if (mouseHit != default)
{
CreateEvent(mouseHit, PointerEventType.Down, true, button);
}
ButtonStates[(int)button] = buttonState;
}
private void UpdateHover(Entity mouseHit, ref InputSystemState state)
{
if (state.HoveredEntity != mouseHit)
{
if (ReceiverFromEntity.Exists(state.HoveredEntity))
{
CreateEvent(state.HoveredEntity, PointerEventType.Exit, true,
PointerButton.Invalid);
}
if (mouseHit != default)
{
CreateEvent(mouseHit, PointerEventType.Enter, true, PointerButton.Invalid);
}
state.HoveredEntity = mouseHit;
}
}
private void UpdateButtons(Entity mouseHit, ref InputSystemState state)
{
for (int i = 0; i < PointerEvents.Length; i++)
{
var eventType = PointerEvents[i].EventType;
var button = PointerEvents[i].Button;
if (eventType == NativeInputEventType.PointerDown)
{
HandleButtonDown(mouseHit, ref state, button);
}
else if (eventType == NativeInputEventType.PointerUp)
{
HandleButtonUp(mouseHit, ref state, button);
}
}
}
private void HandleButtonUp(Entity mouseHit, ref InputSystemState state, PointerButton button)
{
var buttonState = ButtonStates[(int)button];
buttonState.Pressed = false;
if (buttonState.PressEntity != default)
{
CreateEvent(buttonState.PressEntity, PointerEventType.Up, true, button);
}
if (buttonState.IsDragging)
{
CreateEvent(buttonState.PressEntity, PointerEventType.EndDrag, true, button);
if (mouseHit != buttonState.PressEntity)
{
if (mouseHit != default)
{
CreateEvent(mouseHit, PointerEventType.Drop, true, button);
}
}
}
if (button == PointerButton.Left)
{
if (mouseHit == buttonState.PressEntity)
{
CreateEvent(buttonState.PressEntity, PointerEventType.Click, true, button);
}
}
buttonState.IsDragging = false;
buttonState.PressEntity = default;
ButtonStates[(int)button] = buttonState;
}
