flash开源游戏引擎pushButton学习笔记(3)一个基本完整的应用

package {
    
    import com.pblabs.engine.PBE;
    import com.pblabs.engine.entity.IEntity;
    import com.pblabs.engine.entity.PropertyReference;
    import com.pblabs.rendering2D.SimpleSpatialComponent;
    import com.pblabs.rendering2D.SpriteRenderer;
    import com.pblabs.rendering2D.ui.SceneView;
    
    import flash.display.Sprite;
    import flash.geom.Point;
    
    //[SWF(width="800", height="500", frameRate="60")]
    public class MainApp extends Sprite
    {
        
        public function MainApp()
        {
            PBE.startup(this);//启动pushButton
            createScene();
        }
        private function createScene():void
        {
            var sceneView:SceneView=new SceneView();
            PBE.initializeScene(sceneView);
            sceneView.width=500;
            sceneView.height=400;
        }
        
        private function createHero():void
        {
            var hero:IEntity=PBE.allocateEntity();
            hero.initialize("Hero");
            
            var spatial:SimpleSpatialComponent=new SimpleSpatialComponent();
            spatial.position=new Point(0,0);
            spatial.size=new Point(20,20);
            hero.addComponent(spatial,"Spatial");
            
            var render:SpriteRenderer=new SpriteRenderer();
            render.fileName="assets/palnt.png";
            render.positionProperty=new PropertyReference("@Spatial.position");
            render.sizeProperty=new PropertyReference("@Spatial.size");
            hero.addComponent(render,"Render");
            
        }
        
        
        
        
        
    }
}

向舞台添加一个角色，角色是由"assets/palnt.png"渲染的