How to Create a Platform Game in AS2 – Part 6
Part 6: Goals and Level Completion
Ok, now that we’ve added level components and enemies, we can finally make it possible to complete a level. In our game, we’re simply going to make an object that the player has to touch in order to get to the next level. We’re also going to add some coins that will rack up points along the way. The first thing we’re going to do for this is to add a score variable:
//SCORING VARIABLES
var mainScore:Number = 0;
Next, we’re going to add coins. We’ll do this just like we added the level elements. Because we don’t need main to run checks on them, we don’t need to create a separated holder for them. First, we have to create a mcCoin MovieClip. Mine is going to be a 5×5 white circle. Just export it for ActionScript like usual with that name.
Now, add this code to the createLvl() function:
if (lvlArray[i] == 7){
lvlHolder.attachMovie('mcCoin', 'Coin'+i, lvlHolder.getNextHighestDepth());
lvlHolder['Coin'+i]._x = (i-(row-1)*lvlColumns)*25;
lvlHolder['Coin'+i]._y = (row-1)*25;
lvlHolder['Coin'+i].onEnterFrame = function(){
if(this.hitTest(_root.mcMain)){
mainScore += 100;//increase the score
this.removeMovieClip();//and destroy this
trace(mainScore);
}
}
}
The next thing to do is update the score whenever we kill an enemy. I hope you can do this on your own. I’m guessing that 500 points is a fair value for slaying an enemy. Now, we can add a goal object. I’m going to make mine turquoise, simply because it’s a cool color. Make that MovieClip called “mcGoal” and add the following code to the createLvl() function:
if (lvlArray[i] == 8){
lvlHolder.attachMovie('mcGoal', 'Goal'+i, lvlHolder.getNextHighestDepth());
lvlHolder['Goal'+i]._x = (i-(row-1)*lvlColumns)*25;
lvlHolder['Goal'+i]._y = (row-1)*25;
lvlHolder['Goal'+i].onEnterFrame = function(){
if(this.hitTest(_root.mcMain)){
//go to the next lvl
_root.lvlCurrent ++;
_root.createLvl();
_root.resetLvl();
}
}
}
Finally, change the lvlArray1 and add a lvlArray2:
var lvlArray1:Array = new Array(
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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0,0,0,0,4,7,7,7,X,7,7,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,7,7,7,7,0,0,0,0,0,0,0,0,0,0,
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);
var lvlArray2:Array = new Array(
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
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);
Well, that’s it for goals and level completion. Next time, we’ll fix some bugs and add some finishing touches!
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