//
// Can only drop a card onto a suit-stack if the
// card is 1 higher, and is the same suit
//
bool CanDrop(CardRegion &stackobj, Card card)
{
TRACE("ENTER CanDrop()\n");
int topval;
const CardStack &cardstack = stackobj.GetCardStack();
if(cardstack.NumCards() > 0)
{
if(card.Suit() != cardstack[0].Suit())
{
TRACE("EXIT CanDrop()\n");
return false;
}
topval = cardstack[0].LoVal();
}
else
{
topval = 0;
}
//make sure 1 higher
if(card.LoVal() != (topval + 1))
{
TRACE("EXIT CanDrop()\n");
return false;
}
TRACE("EXIT CanDrop()\n");
return true;
}
/* Cards dropped to a stack */
bool CARDLIBPROC StackDropProc(CardRegion &stackobj, CardStack &dragcards)
{
Card dragcard = dragcards[dragcards.NumCards() - 1];
int faceup, facedown;
/* Only drop our cards on other stacks */
if (stackobj.Id() == from->Id())
{
return false;
}
/* If stack is empty, everything can be dropped */
if (stackobj.NumCards() != 0)
{
const CardStack &mystack = stackobj.GetCardStack();
/* Can only drop if card is 1 less */
if (mystack[0].LoVal() != dragcard.LoVal() + 1)
{
return false;
}
/* Check if stack complete */
stackobj.GetFaceDirection(&facedown);
faceup = stackobj.NumCards() - facedown;
if (faceup + dragcards.NumCards() >= NUM_ONECOLOR_CARDS)
{
int i, max = NUM_ONECOLOR_CARDS - dragcards.NumCards() - 1;
/* Dragged cards have been checked to be in order, check stack cards */
if (mystack[0].Suit() == dragcard.Suit() &&
stackLookingGood(mystack, max))
{
CardStack s = stackobj.GetCardStack();
CardStack f;
/* Remove from card stack */
for (i = 0; i < max + 1; i++)
{
s.RemoveCard(0);
}
/* Remove dragged cards */
dragcards = f;
stackobj.SetCardStack(s);
cardsFinished += NUM_ONECOLOR_CARDS;
/* Flip top card of the dest stack */
TurnStackCard(stackobj);
}
}
}
/* Flip the top card of the source stack */
TurnStackCard(*from);
fGameStarted = true;
return true;
}
//
// Row a row-stack, we can only drop cards
// that are lower / different colour
//
bool CARDLIBPROC RowStackDropProc(CardRegion &stackobj, CardStack &dragcards)
{
TRACE("ENTER RowStackDropProc()\n");
Card dragcard = dragcards[dragcards.NumCards() - 1];
//if we are empty, can only drop a stack with a King at bottom
if(stackobj.NumCards() == 0)
{
if(dragcard.LoVal() != 13)
{
TRACE("EXIT RowStackDropProc(false)\n");
return false;
}
}
else
{
const CardStack &mystack = stackobj.GetCardStack();
//can only drop if card is 1 less
if(mystack[0].LoVal() != dragcard.LoVal() + 1)
{
TRACE("EXIT RowStackDropProc(false)\n");
return false;
}
//can only drop if card is different colour
if( (mystack[0].IsBlack() && !dragcard.IsRed()) ||
(!mystack[0].IsBlack() && dragcard.IsRed()) )
{
TRACE("EXIT RowStackDropProc(false)\n");
return false;
}
}
fGameStarted = true;
TRACE("EXIT RowStackDropProc(true)\n");
return true;
}