Once all enemies have been destroyed, the player must be able to play the next level, with more enemies moving faster.
For our convenience, we should manage level creation with a function, changing Main function removing the for loop and adding a new function called playLevel.
public function Main() {
placeSpaceship();
playLevel();
addEventListener(Event.ENTER_FRAME,onEnterFrm);
stage.addEventListener(MouseEvent.CLICK,onMouseCk);
}This function is just a cut/paste of the for loop previously included in Main function, but this way we can call playLevel from elsewhere.
private function playLevel():void {
for (var i:uint=1; i<level+3; i++) {
placeEnemy(i);
}
}And in this specific case, we are calling it from onEnterFrm function once we removed an enemy:
private function onEnterFrm(e:Event) {
...
if (enemyToRemove>=0) {
enemyVector.splice(enemyToRemove,1);
enemyToRemove=-1;
if (enemyVector.length==0) {
level++;
playLevel();
...