package  {
	import student_papervision_samples_PaperBase;
	
	import org.papervision3d.lights.PointLight3D;
	import org.papervision3d.materials.shadematerials.FlatShadeMaterial;
	import org.papervision3d.materials.utils.MaterialsList;
	import org.papervision3d.materials.WireframeMaterial;
	import org.papervision3d.objects.primitives.Cube;
	import org.papervision3d.objects.primitives.Plane;
	import org.papervision3d.cameras.Camera3D;
	import org.papervision3d.materials.BitmapFileMaterial;
	
	import caurina.transitions.Tweener;
	
	import flash.events.KeyboardEvent;
	import flash.text.TextField;
	import flash.text.TextFormat;

	public class student_papervision_samples_CF03 extends student_papervision_samples_PaperBase {
		public var updown:Boolean = false;
		public var leftdown:Boolean = false;
		public var downdown:Boolean = false;
		public var rightdown:Boolean = false;
		public var speed:Number = 150; //			Here you can set the speed of the object. 
		public var text:TextField = new TextField();
		public var rotationPosition:Number = 0;	//			New Variable
		public var rotationGoal:Number = 0;	//				New Variable
		public var rotationBase:Number = 0; //  			New Variable
		
		
		private var fontstyle:TextFormat = new TextFormat("Arial",44,0x000000);
		private var cube:Cube;
		private var cube2:Cube;
		private var mat:FlatShadeMaterial = new FlatShadeMaterial(new PointLight3D(), 0xFFFFFF, 0xFF0000);
		private var mat2:WireframeMaterial = new WireframeMaterial(0x00FF00);
		private var plane:Plane = new Plane(null, 2000, 2000, 10, 10);
		
	   
		public function student_papervision_samples_CF03() {
			init(600, 300);
			
			stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
			stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
		}
		
		override protected function init3d():void{
			cube = new Cube(new MaterialsList( { all: mat } ), 100, 100, 100);
			cube.y = 0;
			cube2 = new Cube(new MaterialsList( { all: mat2 } ), 100, 100, 100);
			cube2.y = 0;
			cube2.x = 1000;
			cube2.z = 1000;
			plane.material.lineColor = 0x777777;
			plane.material.doubleSided = true;
			plane.pitch(90);
			plane.y = -50;
			default_scene.addChild(plane);
			default_scene.addChild(cube);
			default_scene.addChild(cube2);
			Tweener.addTween(cube, { x:1000, z:1000, time:2, onComplete: randomize } );
			default_camera.x = 0;
			default_camera.z = 1000;
			default_camera.y = 1000;
		}
		
		override protected function init2d():void {
			addChild(text);	
			text.selectable = false;
			text.setTextFormat(fontstyle);
			text.width = 800;
			text.text = "Multimedia Authoring - ~vr0815";
		}
		
		public function randomize():void {
			cube2.x = cube.x;
			cube2.z = cube.z;
		}
		
		public function onKeyDown( event:KeyboardEvent ):void {
			switch(event.keyCode) {
				case 38:
					updown = true;
				break;
				case 37:
					leftdown = true;
				break;
				case 40:
					downdown = true;
				break;
				case 39:
					rightdown = true;
				break;
			}
		}
		
		public function onKeyUp( event:KeyboardEvent ):void {
			switch(event.keyCode) {
				case 38:
					updown = false;
				break;
				case 37:
					leftdown = false;
				break;
				case 40:
					downdown = false;
				break;
				case 39:
					rightdown = false;
				break;
			}
		}
		
		override protected function processFrame():void {
			var xp:Number = 0;
			var yp:Number = 0;
			if(rotationBase == rotationPosition % 360) {
				if (updown && leftdown) {
					xp = cube.x + speed;
					yp = cube.z + speed;
					rotationGoal = 315; // RotationGoal keeps track of which direction you want to rotate to, in degrees.
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (updown && rightdown) {
					xp = cube.x + speed;
					yp = cube.z - speed;
					rotationGoal = 45;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (downdown && leftdown) {
					xp = cube.x - speed;
					yp = cube.z + speed;
					rotationGoal = 225;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (downdown && rightdown) {
					xp = cube.x - speed;
					yp = cube.z - speed;
					rotationGoal = 135;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (updown) {
					xp = cube.x + speed;
					yp = cube.z;
					rotationGoal = 0;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (downdown) {
					xp = cube.x - speed;
					yp = cube.z;
					rotationGoal = 180;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (leftdown) {
					xp = cube.x;
					yp = cube.z + speed;
					rotationGoal = 270;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				} else if (rightdown) {
					xp = cube.x;
					yp = cube.z - speed;
					rotationGoal = 90;
					Tweener.addTween(cube, { x:xp, z:yp, time:2, onComplete: randomize } );
				}
			}
	
			if (rotationPosition % 360 != rotationGoal) { //this piece of code rotates the player left or right, depending on which route is shorter. 
				if((((rotationBase % 360 - rotationGoal) < 0) && ((rotationBase % 360 - rotationGoal) > -181)) || ((rotationBase % 360 - rotationGoal) > 180)) {
					cube.rotationY = cube.rotationY + 15;
					rotationPosition = rotationPosition + 15;
				} else {
					cube.rotationY = cube.rotationY - 15;
					rotationPosition = rotationPosition - 15;
				}
			} else {
				rotationBase = rotationPosition % 360; 
			}
			
			Tweener.addTween(default_camera, { x:cube.x - 800, z:cube.z, time:2, onComplete: randomize } )
			default_camera.lookAt(cube);
            
            rotationPosition = rotationPosition % 360;
            
            // The next code is about a rather nasty bug from actionscript's modulo-function (%).
            // It took me ages to figure out that the %-function doesn't check whether a number is positive or negative. This code fixes that part for rotationPosition
			if (rotationPosition < 0) {
				rotationPosition = rotationPosition + 360;
			}
		}
	}
}