Game Development Reference
In-Depth Information
The
removeBlock
function is similar to other remove style function we have written in this topic
already. We pass in a reference to the
Block
we want to remove from the
board
array
(
blockToRemove
). We then have to iterate through both arrays until we locate the
Block
that
matches the
Block
(
blockToRemove)
we want to remove. Our next job is to clean up as much as
possible behind this
Block
. We remove its
EventListener
, remove it from the display list with
removeChild(tempBlock)
, call its
dispose
function (which will clean up the
bitmapData
), and then
set its
board
position in the multidimensional array to
null
.
public function removeBlock(blockToRemove:Block):void {
for (var r:int = 0; r < board.length; r++) {
for (var c:int = 0; c < board[r].length; c++) {
tempBlock = board[r][c];
if (tempBlock == blockToRemove) {
tempBlock.removeEventListener(
CustomEventClickBlock.EVENT_CLICK_BLOCK, blockClickListener);
tempBlock.dispose();
removeChild(tempBlock);
board[r][c]= null;
}
}
}
}
In Figure 8-6, you can see what it might look like when blocks are added back into the board after
they have been removed from the screen.
Figure 8-6.
Blocks added back onto the screen
