Rebuilding a scene

gistfile1.m

/* This method gets called with the absolute root object for the whole scene. I then
   add a few container objects to it.

   _freeSceneRoot is a bog standard sprite that I just add child sprites to; I just move
   it around in relation to where the current viewpoint is. Anything that's placed in the
   game world is added to this (including the _sortedContainer below)

   _sortedContainer is a customized sprite that sorts its children by their y-coordinate,
   so things draw in the right order. (Things lower on the screen draw over things higher on
   the screen)

   Then I add a couple of screen space things: dialog is added after the _freeSceneRoot
   so that it draws on top and isn't affected by the viewpoint in the world, and the _fadeNode
   does things like fading to white/black
*/

- (void)buildFreeMotionScene:(SPDisplayObjectContainer *)sceneRoot
{
    _tilemap.drawOffset = _camera.viewpoint;
    _freeSceneRoot.pivotX = _camera.viewpoint.x;
    _freeSceneRoot.pivotY = _camera.viewpoint.y;
    
    [_tilemap fillTilesheet:_baseTilesheet withLayer:BaseLayer];
    [_tilemap fillTilesheet:_detailTilesheet1 withLayer:DetailLayer1];
    [_tilemap fillTilesheet:_detailTilesheet2 withLayer:DetailLayer2];
    
    [_sortedContainer removeAllChildren];
    [_sortedContainer addChild:_jackie.displayObject];
    [_bees addBeesToScene:_sortedContainer];
    
    if (_jon.active) {
        [_sortedContainer addChild:_jon.displayObject];
    }
    
    if (_kayla.active) {
        [_sortedContainer addChild:_kayla.displayObject];
    }
    
    if (_colin.active) {
        [_sortedContainer addChild:_colin.displayObject];
    }
    
    if (_kefka.active) {
        [_sortedContainer addChild:_kefka.displayObject];
    }
        
    [_freeSceneRoot addChild:_baseTilesheet];
    [_freeSceneRoot addChild:_detailTilesheet1];
    [_freeSceneRoot addChild:_sortedContainer];
    [_freeSceneRoot addChild:_detailTilesheet2];
    
    if (_touchIndicator.visible || _touchIndicator.fadingOut) {
        [_freeSceneRoot addChild:_touchIndicator.displayObject];
    }
    
    [sceneRoot addChild:_freeSceneRoot];

    if (!_dialogNode.done) {
        [sceneRoot addChild:_dialogNode];
    }
    
    if (!_fadeNode.done) {
        [sceneRoot addChild:_fadeNode];
    }
}