public void OnEndDrag(PointerEventData eventData)
{
if (!CanBeDragged)
{
return;
}
// unhover all anchors
foreach (CardAnchor anchor in hoveredAnchors)
{
anchor.OnCardDragUnhover();
}
// attach to hovered anchor if it can accept this card
CardAnchor anchorToDropOn = ClosestHoveredAnchor();
if (anchorToDropOn != null && anchorToDropOn.CanAttachCard(this))
{
AttachToAnchor(anchorToDropOn);
audioSource.PlayOneShot(PlaceClip);
}
else
{
AttachToAnchor(currentAnchor);
audioSource.PlayOneShot(DropClip);
}
MoveToAnchor();
hoveredAnchors.Clear();
}
private void OnTriggerEnter2D(Collider2D collider)
{
CardAnchor anchor = collider.GetComponent <CardAnchor>();
if (anchor != null)
{
hoveredAnchors.Add(anchor);
}
}
private void OnTriggerExit2D(Collider2D collider)
{
CardAnchor anchor = collider.GetComponent <CardAnchor>();
if (anchor != null)
{
anchor.OnCardDragUnhover();
if (hoveredAnchors.Contains(anchor))
{
hoveredAnchors.Remove(anchor);
}
}
}
private CardAnchor ClosestHoveredAnchor()
{
CardAnchor closestHoveredAnchor = null;
float closestDistance = float.MaxValue;
foreach (CardAnchor anchor in hoveredAnchors)
{
float distanceToAnchor = Vector3.Distance(anchor.transform.position, transform.position);
if (distanceToAnchor < closestDistance)
{
closestDistance = distanceToAnchor;
closestHoveredAnchor = anchor;
}
}
return(closestHoveredAnchor);
}
public void OnDrag(PointerEventData eventData)
{
if (!CanBeDragged)
{
return;
}
transform.position = Input.mousePosition + mouseDragOffset;
// highlight just the closest hovered card anchor
CardAnchor closestHoveredAnchor = ClosestHoveredAnchor();
foreach (CardAnchor anchor in hoveredAnchors)
{
if (anchor == closestHoveredAnchor)
{
anchor.OnCardDragHover(this);
}
else
{
anchor.OnCardDragUnhover();
}
}
}
public void AttachToAnchor(CardAnchor anchor)
{
currentAnchor = anchor;
anchor.OnAttachCard(this);
}
