// Creates the allocated Empty on initialization.
static TouchData()
{
Empty = CreateEmpty();
}
// Casts a ray and returns the touchdata which the ray collided with.
private bool TryGetTouchData(int fingerId, Vector3 position, Camera camera, LayerMask ignoreMask, out TouchData touchData)
{
if (TryRayCast(position, camera, ignoreMask, out RaycastHit hit))
{
var collider = hit.collider;
// @TODO: Fix this unwanted null error in stresstests
if (collider == null)
{
touchData = TouchData.Empty;
return(false);
}
// Fetch all the touch handlers.
var downHandler = collider.GetComponent <ITouchDownHandler>();
var dragHandler = collider.GetComponent <ITouchDragHandler>();
var upHandler = collider.GetComponent <ITouchUpHandler>();
// If any handler is available, it will result in returning true and providing the TouchData through the "out".
if (downHandler != null || dragHandler != null || upHandler != null)
{
// @TODO: Remove double null check for performance.
downHandler?.OnDown(fingerId);
touchData = new TouchData(collider, dragHandler, upHandler, position, Time.realtimeSinceStartup, fingerId);
return(true);
}
else
{
_onMiss?.Invoke();
}
}
touchData = TouchData.Empty;
return(false);
}