package
  {
          import com.friendsofed.isometric.DrawnIsoBox;
          import com.friendsofed.isometric.DrawnIsoTile;
          import com.friendsofed.isometric.IsoWorld;
          import com.friendsofed.isometric.Point3D;
          
          import flash.display.Sprite;
          import flash.display.StageAlign;
          import flash.display.StageScaleMode;
          import flash.events.Event;
          import flash.events.KeyboardEvent;
          import flash.ui.Keyboard;
  
          [SWF(backgroundColor=0xffffff)]
          public class @ax-lib-flex-animation-code-03-CollisionTest extends Sprite
          {
                  private var world:IsoWorld;
                  private var box:DrawnIsoBox;
                  private var speed:Number = 4;
                  
                  public function @ax-lib-flex-animation-code-03-CollisionTest()
                  {
                          stage.align = StageAlign.TOP_LEFT;
                          stage.scaleMode = StageScaleMode.NO_SCALE;
                          
                          world = new IsoWorld();
                          world.x = stage.stageWidth / 2;
                          world.y = 100;
                          addChild(world);
                          
                          for(var i:int = 0; i < 20; i++)
                          {
                                  for(var j:int = 0; j < 20; j++)
                                  {
                                          var tile:DrawnIsoTile = new DrawnIsoTile(20, 0xcccccc);
                                          tile.position = new Point3D(i * 20, 0, j * 20);
                                          world.addChildToFloor(tile);
                                  }
                          }
                          
                          box = new DrawnIsoBox(20, 0xff0000, 20);
                          box.x = 200;
                          box.z = 200;
                          world.addChildToWorld(box);
                          
                          var newBox:DrawnIsoBox = new DrawnIsoBox(20, 0xcccccc, 20);
                          newBox.x = 300;
                          newBox.z = 300;
                          world.addChildToWorld(newBox);
                          
                          stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
                          stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
                  }
                  
                  private function onKeyDown(event:KeyboardEvent):void
                  {
                          switch(event.keyCode)
                          {
                                  case Keyboard.UP :
                                  box.vx = -speed;
                                  break;
                                  
                                  case Keyboard.DOWN :
                                  box.vx = speed;
                                  break;
                                  
                                  case Keyboard.LEFT :
                                  box.vz = speed;
                                  break;
                                  
                                  case Keyboard.RIGHT :
                                  box.vz = -speed;
                                  break;
                                  
                                  default :
                                  break;
                                  
                          }
                          addEventListener(Event.ENTER_FRAME, onEnterFrame);
                  }
                  
                  private function onKeyUp(event:KeyboardEvent):void
                  {
                          box.vx = 0;
                          box.vz = 0;
                          removeEventListener(Event.ENTER_FRAME, onEnterFrame);
                  }
                  
                  private function onEnterFrame(event:Event):void
                  {
                          if(world.canMove(box))
                          {
                                  box.x += box.vx;
                                  box.y += box.vy;
                                  box.z += box.vz;
                          }
                          world.sort();
                  }
          }
  }