public void SlideTo(int x, int y, EndOffAnimationDelegate callBack)
{
tx = x;
ty = y;
sx = Canvas.GetLeft(background);
sy = Canvas.GetTop(background);
dx = (tx - sx) / SLIDE_STEPS;
dy = (ty - sy) / SLIDE_STEPS;
step = 0;
this.callBack = callBack;
mode = SLIDE;
}
private void DropPieces()
{
EndOffAnimationDelegate dropCallBack = new EndOffAnimationDelegate(DropEnded);
// Slide all pieces down, use callback to fill in new and run a checkMatches
for (int ix = 0; ix < columns; ix++)
{
for (int iy = rows - 1; iy >= 0; iy--)
{
if (board[ix, iy] == null)
{
for (int i = iy - 1; i >= 0; i--)
{
if (board[ix, i] != null)
{
board[ix, iy] = board[ix, i];
board[ix, i] = null;
board[ix, iy].SlideTo(boardX + ix * (pieceSize + pieceGap), boardY + iy * (pieceSize + pieceGap), dropCallBack);
dropCallBack = null;
break;
}
}
}
}
}
if (dropCallBack != null) dropCallBack(null);
}
