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Thread: How to create HUD layer

  1. #1
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    [AS3/F10]How to create HUD layer

    As topic says, I'm trying to create HUD layer - a group of movie clips which are always on top of all other stuff, so a place where to put score, healthbar, ammo...The problem is that I don't know how to control the order of rendering or depth (Z-order). Any ideas?
    Last edited by Joint; 08-12-2009 at 02:02 PM.

  2. #2
    Pumpkin Carving 2008 ImprisonedPride's Avatar
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    What I normally do is create each "layer" of the game as its' own MC, and then create an object to hold that MC to interface with it. For a HUD layer, I'd do something like:

    Code:
    HUD = {};
    HUD.clip = _root.createEmptyMovieClip("hud", _root.getNextHighestDepth());
    HUD.score = something;
    HUD.lives = somethingElse;
    HUD.health = somethingElseElse;
    Then you can interface directly with this clip when say, the player loses a life:

    Code:
    player.lives--;
    HUD.lives.gotoAndStop(player.lives);
    Using objects isn't probably the best way to keep things sorted. The main point here is that you're only worrying about the depth of one group of MC's; the layer clips. You will probably only have 5-6 different layers in a typical game. Then when you go to add clips to these layer MC's you don't have to worry about depth anymore.
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  3. #3
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    maybe an AS3 version, if I'm not asking too much?

  4. #4
    Pumpkin Carving 2008 ImprisonedPride's Avatar
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    To quote the readme sticky:
    Quote Originally Posted by Squize
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    Unfortunately, I do not code in AS3. Hope someone else answers your question. (The theory still applies, if you are using AS3 it couldn't be that hard to adapt it, could it?)
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  5. #5
    Funkalicious TOdorus's Avatar
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    It's the order you attach children basicly. This is the same for AS2 and AS3. The latter children get placed on top of the previous ones.

    Code:
    var BackGround:MovieClip = new MovieClip()
    var Actors:MovieClip = new MovieClip()
    //
    var HUD:MovieCLip = new MovieClip()
    var Score:MovieClip = new ScoreClip()
    var Lives:MovieClip  = new LivesClip()
    var Health:MovieClip  = new HealthClip()
    HUD.addChild(Score)
    HUD.addChild(Lives)
    HUD.addChild(Health)
    //
    addChild(BackGround)
    addChild(Actors)
    addChild(HUD)

  6. #6
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    instead of using addChild(Hud); use addChildAt(Hud, 0);

    the second parameter is depth. higher depths are on top of lower depths.

  7. #7
    Wait- what now? tidenburg's Avatar
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    Or,
    PHP Code:
    function foremost(obj:MovieClip) {
        
    obj.parent.setChildIndex(objobj.parent.numChildren-1);

    Use this function on the hud layer whenever you add a new child to the stage.
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