public void InterpolateSize(ISlotListItem listItem)
{
ISlotListSlot currentSlot = listItem.GetCurrentSlot();
if (currentSlot == null)
{
return;
}
ESlotListDirection direction = CalculateOffsetDirection(listItem, Vector2.zero);
ISlotListSlot targetSlot = GetTargetSlot(listItem, direction);
if (targetSlot == null)
{
listItem.SetSize(currentSlot.GetSize());
return;
}
float offsetPercent = CalculateOffsetPositionPercent(
listItem.GetPosition(),
Vector2.zero,
currentSlot.GetPosition(),
targetSlot.GetPosition());
InterpolateSize(listItem, targetSlot, offsetPercent);
}
private ISlotListSlot GetTargetSlot(ISlotListItem listItem, ESlotListDirection direction)
{
switch (direction)
{
case ESlotListDirection.None: return(null);
case ESlotListDirection.TowardsNextSlot: return(listItem.GetCurrentSlot().GetNextSlot());
case ESlotListDirection.TowardsPreviousSlot: return(listItem.GetCurrentSlot().GetPreviousSlot());
default: return(null);
}
}
public void OnDrag(ISlotListItem listItem, Vector2 dragDelta)
{
// Calculate direction
offsetDirection = CalculateOffsetDirection(listItem, dragDelta);
// Calculate offset from current slot
ISlotListSlot targetSlot = GetTargetSlot(listItem, offsetDirection);
offsetPositionPercent = targetSlot != null
? CalculateOffsetPositionPercent(listItem.GetPosition(), dragDelta, listItem.GetCurrentSlot().GetPosition(), targetSlot.GetPosition())
: 0;
// Apply this to all list items. This make them move in the same way towards their target slot.
foreach (ISlotListItem otherListItem in ListItems)
{
ApplyOffsetPositionPercent(otherListItem);
}
// When the target has been reached, then adjust the current slot of all items
if (offsetPositionPercent >= 0.6f)
{
slotChangeEventStream.OnNext(new SlotChangeEvent(offsetDirection, offsetPositionPercent));
}
}
public SlotChangeEvent(ESlotListDirection direction, float offsetPositionPercent)
{
Direction = direction;
OffsetPositionPercent = offsetPositionPercent;
}