public void ChainAddDot(Dot dot)
{
// If still dealing with last chain, need to wait
if (state != State.MAKINGCHAIN)
return;
// If still adding dots (because still touching) but the chain has been cleared, skip
if (chain.Count == 0)
return;
// If touching same dot as last frame, skip
if (dot == chain[chain.Count - 1])
return;
// If new dot is different colour, reset
if (dot.GetColour() != chainColour)
{
CompleteChain ();
return;
}
// If new dot is not 1 away on horizontal or vertical line, reset
float xdif = Mathf.Abs (dot.xPos - chain[chain.Count - 1].xPos);
float ydif = Mathf.Abs (dot.yPos - chain[chain.Count - 1].yPos);
if ((xdif > 1 || ydif > 1) || (xdif == 1 && ydif == 1))
{
CompleteChain ();
return;
}
// If doubling back on existing chain, reset
for (int n = 0; n < chain.Count - 1; n++)
{
if (chain[n] == dot)
{
CompleteChain ();
return;
}
}
// Otherwise extend the chain
chain.Add (dot);
dot.SetHighlight (true);
m_Click.Play ();
}
// Called when first touch a dot
public void NewChain(Dot dot)
{
// If still dealing with last chain, need to wait
if (state != State.MAKINGCHAIN)
return;
chainColour = dot.GetColour ();
chain.Add (dot);
dot.SetHighlight (true);
m_Click.Play ();
}