The movie below lets you use keys to move the blob. Look at the code and try to determine what keys can move and rotate the blob:
stage.addEventListener(KeyboardEvent.KEY_DOWN, doKeyDown);
function doKeyDown(e:KeyboardEvent):void {
var amount:int=1; //amount to move by
if(e.shiftKey) amount=5; //make it 5 if shift is down
switch(e.keyCode) {
case 40: blob.y+=amount; break; //down arrow
case 38: blob.y-=amount; break; //up arrow
case 37: blob.x-=amount; break; //left arrow
case 39: blob.x+=amount; break; //right arrow
case 82: //letter r
if(e.shiftKey) amount=-1; //if shift is down rotate counter clockwise
else amount=1;
blob.rotation+=amount; //rotate when r is pressed
break;
} //switch
} //doKeyDown
Notice that we do not need curly braces {} around the statements for the letter r: the break ends the block with case rather than curly braces. Download the FLA file
