Game Development Reference
In-Depth Information
bitmaps needed to run through the animation. Again, notice the different code for Flex and Flash.
We then call
setNextImage()
to get the
BitmapData
for the current image, set
frameCounter
to
0
to
start the animation timing, and set
finished
to false so that
FlakCannon
will not instantly remove it
from the screen.
public function init():void
{
image = new Bitmap();
addChild(image);
//***** Flex *****
/*images = [new Exp1Gif().bitmapData,
new Exp2Gif().bitmapData,
new Exp3Gif().bitmapData,
new Exp4Gif().bitmapData,
new Exp5Gif().bitmapData,
new Exp6Gif().bitmapData,
new Exp7Gif().bitmapData
];
*/
//***** Flash *****
images = [new Exp1Gif(32,32),
new Exp2Gif(0,0),
new Exp3Gif(0,0),
new Exp4Gif(0,0),
new Exp5Gif(0,0),
new Exp6Gif(0,0),
new Exp7Gif(0,0)
];
setNextImage();
frameCounter=0;
finished=false;
}
setNextImage()
increments the
currentImageIndex
counter and then checks to see if we have
reached the end of the animation. If we have, we set
finished
to
true
. If not, we set
image.bitMapData
to the image at
index = currebtImageIndex
in the
images
array.
public function setNextImage():void {
currentImageIndex++;
if (currentImageIndex > images.length-1) {
finished = true;
} else {
image.bitmapData = images[currentImageIndex];
}
}
The
update()
function does not need to move anything. When it is called by
FlakCannon
, it simply
updates the
frameCounter
. The interesting stuff will happen in
render()
.
