public void SwapGems(Gems source)
{
// if there is no last gem selected, set it to the source
if(last == null)
{
last = source;
}
// but, if there is a source, then last gem should be nulled as the player is unselecting it.
else if(last == source)
{
last = null;
}
// else, figure out if the gem is neighbor
else
{
// if the last gem is a neighbor of the currently selected gem, then allow the swap
if (last.NeighboredGem(source) && canSwap)
{
g1 = last;
g2 = source;
// the first gem's source position is the last gem selected's position
firstGemSourcePosition = last.transform.position;
neighborGemSourcePosition = source.transform.position;
// the transform is swapped
last.transform.position = neighborGemSourcePosition;
source.transform.position = firstGemSourcePosition;
last.image = source.image;
source.image = last.image;
source.toggleSelection();
last.toggleSelection();
// for swap control
canSwap = false;
last = null;
matchPossible = true;
}
else
{
last = source;
//last.toggleSelection();
canSwap = true;
}
}
}