Like I said, this is going to be pretty straight-forward chapter. To destroy the blocks, all we need to do is set their value to 0. And, since we have a list of blocks to destroy, we'll just use a simple FOR loop. The only thing we have to check is that the list contains more than one field. If not, the user clicked on a field that is not connected to any fields of the same color. Nothing fancy here. Here's the code (put it in your DestroyBlocks() method!):
// First, we'll check if the
// List contains more than
// one block. If it does, we
// destroy all the fields in
// it by setting their value
// to 0.
if (ConnectedList.Count > 1)
for (int d = 0;
d < ConnectedList.Count;
d++)
Fieldd.iXcoordinate,
ConnectedListd.iYcoordinate] = 0;
}
Simple, right? So, if you remember the picture from the last chapter – here's how that field would look now, after destroying the selected blocks:
In the next chapter, we'll create some gravity. Gravity will force all those floating blocks to fall down. See the floating blocks? (Hint: Field0,0, Field0,1 and Field1,0). And after that, our game will be almost playable. When we finish gravity, we'll start working on different 'bonus' stuff, levels (like promissed), scoring (and high score lists), design and graphics, and a little 'Drop Block' feature wich will randomly create a single block somewhere in our game field… So, click on, and discover the secrets of Gravity!
